Entries |
Document | Title | Date |
20080199369 | Extruded porous substrate and products using the same - A highly porous substrate is provided using an extrusion system. More particularly, the present invention enables the production of a highly porous substrate. Depending on the particular mixture, the present invention enables substrate porosities of about 60% to about 90%, and enables advantages at other porosities, as well. The extrusion system enables the use of a wide variety of fibers and additives, and is adaptable to a wide variety of operating environments and applications. Fibers, which have an aspect ratio greater than 1, are selected according to substrate requirements, and are typically mixed with binders, pore-formers, extrusion aids, and fluid to form a homogeneous extrudable mass. The homogeneous mass is extruded into a green substrate. The more volatile material is preferentially removed from the green substrate, which allows the fibers to form interconnected networks. As the curing process continues, fiber to fiber bonds are formed to produce a structure having a substantially open pore network. The resulting porous substrate is useful in many applications, for example, as a substrate for a filter or catalyst host, or catalytic converter. | 08-21-2008 |
20080233019 | SWING BED CANISTER WITH HEAT TRANSFER FEATURES - A swing bed canister assembly for a regenerative carbon dioxide removal system includes a housing that includes an integrally formed central wall that divides an adsorbing amine bed from a desorbing amine bed. The central wall defines spaces for each of the amine beds so that each portion of the desorbing amine bed is disposed in thermal communication with an adsorbing amine bed to facilitate desorption. | 09-25-2008 |
20080241008 | CATALYST CARRIER AND EXHAUST GAS TREATMENT APPARATUS - A catalyst carrier including a ceramic block having two open faces, an outer peripheral surface, and multiple cells divided by a cell wall and extending between the open faces. The ceramic block has multiple honeycomb units combined by interposing an adhesive layer, where the honeycomb units include an outer-peripheral-side honeycomb unit and a center-side honeycomb unit combined to form the outer peripheral part and the center part, respectively, of the block. The outer-peripheral-side honeycomb unit has an outer peripheral cell wall forming the outer peripheral surface of the outer-peripheral-side honeycomb unit. The outer peripheral cell wall includes an outermost peripheral cell wall forming part of the outer peripheral surface of the block. A cell of the outer-peripheral-side honeycomb unit in contact with the outermost peripheral cell wall thereof has a corner part having a curved surface, where the corner part is on the side contacting the outermost peripheral cell wall. | 10-02-2008 |
20080241009 | HONEYCOMB FILTER, EXHAUST GAS PURIFYING APPARATUS, AND METHOD FOR MANUFACTURING HONEYCOMB FILTER - A honeycomb filter is provided that includes a pillar-shaped honeycomb fired body having a plurality of cells longitudinally disposed in parallel with one another with a cell wall therebetween, and with either one end of each of the cells being sealed. The honeycomb fired body has a first end face on a gas inlet side and a second end face on a gas outlet side. The cell wall has a thickness that is about 0.20 to about 0.28 mm. A catalyst supporting layer is formed in a catalyst-supporting-layer area covering about 25% to about 90% of an overall length of the honeycomb fired body, and no catalyst supporting layer is formed in a non-catalyst-supporting-layer area covering about 10% of the overall length of the honeycomb fired body that abuts the second end face. A thermal conductivity of the non-catalyst-supporting-layer area is higher than a thermal conductivity of the catalyst-supporting-layer area. | 10-02-2008 |
20080241010 | EXHAUST GAS PURIFYING SYSTEM - An exhaust gas purifying system is provided that includes a catalyst carrier, and a honeycomb filter. The filter includes a pillar-shaped honeycomb fired body having a plurality of cells longitudinally disposed in parallel with one another with a cell wall therebetween, with either one end of each cell being sealed. The carrier is placed in an exhaust gas passage on an upstream side of the filter, and at a predetermined distance from the filter. A catalyst supporting layer is formed in the filter in a catalyst-supporting area covering about 25 to about 90% of an overall length of the filter, and substantially no catalyst supporting layer is formed in a non-catalyst-supporting area covering about 10% of the overall length, the non-catalyst supporting area abutting an outlet side of the filter. A thermal conductivity of the non-catalyst-supporting area is higher than a thermal conductivity of the catalyst-supporting area. | 10-02-2008 |
20080241011 | HONEYCOMB FILTER AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb filter includes a pillar-shaped honeycomb fired body having first and second end faces on a gas inlet and outlet sides, respectively. A catalyst supporting layer is formed in a catalyst-supporting-layer area covering about 25% to about 90% of an overall length of the honeycomb fired body and abutting the first end face on the gas inlet side. Substantially no catalyst supporting layer is formed in a non-catalyst-supporting-layer area covering about 10% of the overall length on the gas outlet side. A thermal conductivity of the non-catalyst-supporting-layer area is higher than that of the catalyst-supporting-layer area, and inequalities, (a−b)≦about 5, and about 10≦a≦about 20 are satisfied where “a” is a mode of pore diameters obtained by measuring pore distribution of the non-catalyst-supporting-layer area and “b” is a mode of pore diameters obtained by measuring pore distribution of the catalyst-supporting-layer area. | 10-02-2008 |
20080241012 | HONEYCOMB STRUCTURE, METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE, AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb structure includes a plurality of pillar-shaped honeycomb fired bodies each having a large number of cells longitudinally disposed in parallel with one another with a cell wall therebetween. The plurality of pillar-shaped honeycomb fired bodies are combined with one another by interposing an adhesive layer. A catalyst supporting layer is included in the adhesive layer which abuts one end face side of the honeycomb structure, while substantially no catalyst supporting layer is included in the adhesive layer which abuts another end face side of the honeycomb structure. | 10-02-2008 |
20080241013 | HONEYCOMB FILTER AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb filter includes a pillar-shaped honeycomb fired body having cells longitudinally disposed with a cell wall and having first and second end faces on gas inlet and outlet sides, respectively. A catalyst supporting layer is formed in a catalyst-supporting-layer area covering at least about 25% and at most about 90% of an overall length of the fired body and that abuts the first end face. Substantially no catalyst supporting layer is formed in a non-catalyst-supporting-layer area covering about 10% of the overall length that abuts the second end face. A thermal conductivity of the non-catalyst-supporting area is larger than that of the catalyst-supporting-layer area, where gas permeability coefficient k1 (μm | 10-02-2008 |
20080241014 | Low coefficient of thermal expansion materials including modified aluminosilicate fibers and methods of manufacture - A fibrous ceramic material comprises a plurality of fibers having a modified aluminosilicate compositional structure (i.e., x(RO).y(Al | 10-02-2008 |
20080241015 | HONEYCOMB FILTER FOR PURIFYING EXHAUST GASES, ADHESIVE, COATING MATERIAL, AND MANUFACTURING METHOD OF HONEYCOMB FILTER FOR PURIFYING EXHAUST GASES - An object of the present invention is to provide a honeycomb filter for purifying exhaust gases which makes it possible to alleviate a thermal stress generated due to occurrence of a local temperature change and which is less likely to generate cracks and superior in strength and durability, an adhesive that has a low thermal capacity and is capable of alleviating the thermal stress, a coating material that has a low thermal capacity with a superior heat insulating property and is capable of alleviating the thermal stress, and a manufacturing method of the honeycomb filter for purifying exhaust gases that can improve precision in the outside dimension, and reduce damages in the manufacturing processes. | 10-02-2008 |
20080247918 | HONEYCOMB FILTER, EXHAUST GAS PURIFYING APPARATUS, AND METHOD FOR MANUFACTURING HONEYCOMB FILTER - A honeycomb filter includes a pillar-shaped honeycomb fired body having a large number of cells each sealed at either end thereof and placed longitudinally in parallel with one another with a cell wall therebetween. A sum of cross-sectional areas perpendicular to a longitudinal direction of cells having openings on a gas inlet side is about 1.5 to about 3.0 times larger than a sum of cross-sectional areas of cells having openings on a gas outlet side. A catalyst supporting layer is formed in a catalyst-supporting-layer area covering about 25 to about 90% of an overall length of the honeycomb filter, and substantially no catalyst supporting layer is formed in a non-catalyst-supporting-layer area covering about 10% of the overall length of the honeycomb filter. The non-catalyst-supporting-layer area abuts the gas outlet side. A thermal conductivity of the non-catalyst-supporting-layer area is higher than a thermal conductivity of the catalyst-supporting-layer area. | 10-09-2008 |
20080247919 | Calibrated Catalyst Carrier Body with Corrugated Casing - A method for manufacturing a catalyst carrier body includes producing a honeycomb body having at least partially structured layers forming channels through which a fluid can flow. The honeycomb body has an external extent formed at least partially by ends of the layers. At least one corrugated casing and a housing are also produced. The honeycomb body is inserted into the corrugated casing and the corrugated casing with the honeycomb body is inserted into the housing with the housing at least partially surrounding the honeycomb body. The housing is calibrated by reducing at least an internal contour of the housing and preferably also a profile of the corrugated casing. The honeycomb body is connected to the housing with the corrugated casing disposed between the honeycomb body and the housing. A catalyst carrier body produced by the method is also provided. | 10-09-2008 |
20080260599 | HONEYCOMB FILTER AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb filter includes a honeycomb fired body having cells longitudinally disposed either end of each cell being sealed. The honeycomb filter includes an outlet-side catalyst supporting area, an inlet-side catalyst supporting area, and a catalyst unsupporting area formed between the catalyst supporting areas. A thermal conductivity of the catalyst unsupporting area is larger than those of the catalyst supporting areas. Y (%), Z (%), and X (%) satisfy the following inequalities, about 1≦Y≦about 19, (880−70Y)/9≦Z≦(825−15Y)/9 (about 1≦Y≦about 10), (330−15Y)/9≦Z≦(1375−70Y)/9 (about 10≦Y≦about 19), and X=100−Y−Z in which Y, Z, X indicate a ratio of a length of the outlet-side catalyst supporting area, the inlet-side catalyst supporting area, the catalyst unsupporting area, respectively, to an entire length of the honeycomb filter. | 10-23-2008 |
20080274020 | CARRIER FOR EXHAUST-GAS PURIFICATION AND EXHAUST-GAS PURIFIER HAVING THE CARRIER - A carrier for exhaust-gas purification is disclosed, which is able to effectively protect against getting clogged with the particulate matters in a filter having carriers. The carrier is constituted with a web corrugated to have straight and/or zigzag ridges and then wound up into a column. The carrier for exhaust-gas gas purification is made of the web of wire netting or nonwoven metallic fabric, which is embosed to have ridges and grooves extending at least in a widthwise direction and further wound up spirally or stacked on top of the other into the column. | 11-06-2008 |
20080292513 | CATALYST CARRIER - Disclosed is a catalyst carrier which is used for carrying a catalyst thereon. The catalyst carrier is characterized in that the apparent specific heat measured at 800° C. is 1.8 times or more greater than that measured at room temperature, wherein the apparent specific heat means a charge heat amount required for substantially increasing the temperature of a unit mass (kg) by 1 K, inclusive of the influence of endotherm or exotherm caused by change in crystalline form, partial melting, coagulation, phase transformation, vitrification, amorphous-formation, crystallization and the like. | 11-27-2008 |
20080317646 | CATALYTIC CONVERTER AND MANUFACTURING METHOD THEREOF - A catalytic converter includes: a three-dimensional structural support having a plurality of cells partitioned by porous cell walls, in which a pore diameter of the cell walls is 10 μm to 50 μm and porosity of the cell walls is 40 vol % or more; and a catalyst-coated layer containing a catalyst component. The catalyst-coated layer is coated on surfaces of the cell walls of the three-dimensional structural support. 50 mass % or more of a total supported amount of the catalyst component on the three-dimensional structural support is present in a region from the surfaces of the cell walls of the three-dimensional structural support to surfaces of the catalyst-coated layer. | 12-25-2008 |
20090004072 | Ceramic Chemical Reaction Device Capable of Decomposing Solid Carbon - The present invention relates to a ceramic chemical reaction device capable of decomposing solid carbon, and provides a chemical reactor comprising a chemical reaction device that has an ion-conducting ceramic material and a chemical reaction structure composed of a catalyst electrode that is formed on the ceramic material and can electrochemically remove solid carbon (PM) by direct oxidation, a cathode, a solid electrolyte, and an anode, and thereby solid carbon (PM) is directly oxidized and removed on the anode surface by a reaction of C+2O | 01-01-2009 |
20090004073 | Catalytic Filter Having a Short Light-Off Time - The invention relates to a catalytic filter for the treatment of a gas laden with soot and pollutant particles in a gas phase, comprising a plurality of monolithic honeycomb blocks connected together by a jointing cement, the thermal conductivity of which is greater than 0.3 W/m.K, said filter being characterized in that at least the monolithic blocks placed in the central part of the filter, and preferably all of the monolithic blocks, have, along a radial direction, a peripheral portion whose total filtration area is greater than the total filtration area of the central portion of said blocks. | 01-01-2009 |
20090010817 | Honeycomb filter - A honeycomb filter according to the present invention is composed of multiple segments each having a large number of through holes, which are separated from each other by porous bulkheads as running through in an axis direction of the segment, the segments bonded with each other by a bonding material. In the honeycomb filter, a heat capacity of the segments arranged in the peripheral portion is higher than that of the segments arranged in the center portion. | 01-08-2009 |
20090041638 | Catalytic converter, holding material for catalytic converter and production method thereof - The present invention relates to a holding material for a catalytic converter including a catalyst carrier, a metal casing for receiving the catalyst carrier, and the holding material wound around the catalyst carrier and interposed in a gap between the catalyst carrier and the metal casing, the holding material having a plurality of high-density sites which are spaced apart from one another in the holding material, each site having a higher density than sites of the holding material in which the higher density sites are not provided. | 02-12-2009 |
20090047188 | HONEYCOMB CATALYST STRUCTURE - There is provided a honeycomb catalyst body | 02-19-2009 |
20090129995 | Method for coating a surface filter with a finely divided solids, filter so obtained and its use - Coating a wall-flow filter with a catalytically active coating generally increases the exhaust-gas backpressure in the filter. The increase in the exhaust-gas backpressure is particularly pronounced if a slurry of fine-particle catalyst materials is used for the coating operation. The increase in the exhaust-gas backpressure can be restricted to a tolerable level if, prior to the coating operation, the slurry is so finely milled that virtually the entire mass of the catalyst materials is introduced into the pores of the filter and deposited on the inner surfaces of the pores. This is the case if the d | 05-21-2009 |
20090148357 | APPARATUS AND CATALYST FOR PURIFYING EXHAUST GAS - Use of a metallic material containing chromium as a substrate of an exhaust gas purifying catalyst has a problem that the chromium contained in the substrate migrates to a catalytically active component and reacts with the catalytically active component to reduce exhaust gas purification performance. Thus, a film which inhibits the chromium contained in the substrate from migrating is arranged on the substrate's surface. The film is desirably formed by oxidizing a substrate in the air. It is also desirable that a substrate containing aluminum therein be oxidized to cause aluminum contained in the substrate to separate out and thereby form an alpha-alumina film. The film is preferably such that, when the exhaust gas purifying catalyst is heated at 850° C. in the air for 300 hours, the amount of chromium migrated to the catalytically active component is controlled to 0.5 percent by weight or less based on the catalytically active component. | 06-11-2009 |
20090155135 | Catalyzed Soot Filter Manufacture and Systems - Catalyzed soot filters comprising a wall flow monolith having microcracks and pores and a catalyst comprising support particles with particle sizes greater than about the size of the microcracks and less than about the size of the pores are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed. | 06-18-2009 |
20090162257 | EXHAUST GAS PURIFICATION APPARATUS - A purification apparatus | 06-25-2009 |
20090175768 | SUBSTRATE HAVING CORRUGATED SHEET(S) AND CHANNEL(S) FOR TREATING EXHAUST GASES OF COMBUSTION ENGINES - The present invention relates a substrate having corrugated sheet(s) and channel(s) for treating exhaust gases of combustion engines. The present invention also relates to methods for manufacturing and using said substrate having said open channel(s). The substrate ( | 07-09-2009 |
20090185962 | APPARATUS FOR THE SEPARATION OF PARTICLES CONTAINED IN EXHAUST GASES OF INTERNAL COMBUSTION ENGINES - The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back ( | 07-23-2009 |
20090202402 | HONEYCOMB STRUCTURE, EXHAUST GAS PURIFYING APPARATUS AND METHOD FOR MANUFACTURING HONEYCOMB STRUCTURE - A honeycomb structure includes a honeycomb block which includes at least one honeycomb fired body having a first end face side and a second end face side in a longitudinal direction of the honeycomb fired body. The honeycomb fired body includes a plurality of cell walls extending along the longitudinal direction to define cells. Either one of first and second end portions in the longitudinal direction of each of the cells is sealed. The first end portion provided on the first end face side of the at least one honeycomb fired body is sealed with a first plug which is made from a plug material paste and fired. The second end portion provided on the second end face side of the at least one honeycomb fired body is sealed with a second plug which is made from a plug material paste and unfired. | 08-13-2009 |
20090232714 | PARTICULATE COMBUSTION CATALYST, PARTICULATE FILTER, AND EXHAUST GAS CLEAN-UP SYSTEM - A particulate combustion catalyst which includes a carrier containing a cerium-zirconium double oxide having a cerium oxide content of 5 to 50 mass %, or a carrier containing a cerium-zirconium-based double oxide containing an oxide of at least one metal selected from Nd, La, Fe, Y, Pr, Ba, Ca, Mg, Sn, and Sr in an amount of 1 to 35 mass %, and having a cerium oxide content of 5 to 50 mass %; and at least one metal selected from Ag, Ru, and K, or an oxide thereof supported on the carrier, and at least one metal selected from among Pt, Pd, and Rh supported on the carrier in an amount of 0.01 to 2 mass %. A particulate filter and an exhaust gas cleanup system having the catalyst are also disclosed. Employment of the particulate combustion catalyst realizes removal of soot through oxidation at low temperature without employment of an expensive noble metal. Since oxidation reaction proceeds with the aid of only oxygen, soot can be removed through oxidation at low temperature regardless of the NO | 09-17-2009 |
20090238732 | HONEYCOMB FILTER, EXHAUST GAS PURIFYING APPARATUS AND METHOD FOR MANUFACTURING HONEYCOMB FILTER - A honeycomb filter includes a ceramic block which includes a plurality of honeycomb fired bodies, an adhesive layer, and irregularities on a peripheral face of the ceramic block. Each honeycomb fired body has a longitudinal direction and cell walls extending along the longitudinal direction to define cells each sealed at either one of both ends of each of the cells. The honeycomb fired bodies include at least one of silicon carbide and silicon-containing silicon carbide. The adhesive layer is provided between the honeycomb fired bodies to connect the honeycomb fired bodies. The irregularities on the peripheral face include a projected portion formed by apart of the cell walls. A sealing material layer is provided on the peripheral face of the ceramic block in accordance with the irregularities on the peripheral face so that an outer peripheral surface of the honeycomb filter has surface irregularities thereon. | 09-24-2009 |
20090238733 | HONEYCOMB STRUCTURE, EXHAUST GAS PURIFYING APPARATUS, AND METHOD FOR PRODUCING HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb member including inorganic fibers and having walls extending along a longitudinal direction to define cells. A catalyst is provided on the wall in an amount of at least about 100 g and at most about 400 g per liter of volume of the honeycomb structure. The honeycomb member has a pore distribution measured using mercury porosimetry in which a pore distribution curve has a first peak in a range from about 0.005 μm to about 0.03 μm of a pore diameter, a second peak in a range from about 1 μm to about 15 μm of the pore diameter, and a third peak in a range from about 15 μm to about 50 μm of the pore diameter, where the curve is drawn by plotting the pore diameter (μm) on an X-axis and a log differential pore volume (mL/g) on a Y-axis. | 09-24-2009 |
20090246098 | EXHAUST GAS-PURIFYING CATALYST - An ability of oxidizing CO and HC is improved, while achieving a sufficient efficiency of burning PM. An exhaust gas-purifying catalyst includes a filter substrate ( | 10-01-2009 |
20090257925 | HOLDING SEALING MATERIAL, EXHAUST GAS PURIFYING APPARATUS, AND METHOD FOR MANUFACTURING HOLDING SEALING MATERIAL - A holding sealing material includes a mat body. The mat body includes a first inorganic fiber and a second inorganic fiber. The first inorganic fiber contains about 60% by weight or more of alumina. The second inorganic fiber contains about 67% by weight or more of silica. The first inorganic fiber and the second inorganic fiber are in a mixed state. | 10-15-2009 |
20090291033 | FILTER COMPRISING A PLURALITY OF HONEYCOMB ELEMENTS JOINED TOGETHER IN AN OFFSET ASSEMBLY - The invention relates to a structure for filtering particle-laden gases, comprising an assembly of elements of the honeycomb type linked by a joint or seal, each element incorporating a set of adjacent ducts or channels | 11-26-2009 |
20090291034 | HONEYCOMB STRUCTURE, EXHAUST GAS CONVERSION APPARATUS, AND MANUFACTURING METHOD OF THE HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb unit including zeolite, an inorganic binder, and cell walls. The cell walls extend from a first end face to a second end face to define cells along a longitudinal direction of the at least one honeycomb unit. Each of the cell walls includes a center part in the longitudinal direction and a first end part adjacent to the first end face. The first end part has a thickness larger than a thickness of the center part, and/or the first end part has a porosity smaller than a porosity of the center part. | 11-26-2009 |
20090297407 | STRUCTURE AND CATALYTIC FILTER FOR FILTERING A GAS COMPRISING A HYDROPHOBIC OR OLEOPHOBIC CEMENT - The invention relates to an assembled structure that can be used, after deposition of a catalyst, for filtering a gas loaded with soot particles and pollutants in the gas phase in which the cement used as a coating cement and/or as a joint cement comprises, at least at the surface, a hydrophobic or oleophobic material. | 12-03-2009 |
20090324455 | HONEYCOMB FILTER AND METHOD FOR MANUFACTURING THE SAME - A honeycomb filter including a catalyst-carrying article, and an outer peripheral coat layer disposed on an outer peripheral face of the catalyst carrying article, wherein an amount of the catalyst loaded in the outer peripheral coat layer at a position 50 μm or more apart from a boundary face between the catalyst-carrying article and the outer peripheral coat layer is 5 mass % or less when a measurement piece having a cross section where a boundary portion between the catalyst-carrying article and the outer peripheral coat layer can be observed and being obtained by embedding a resin in the boundary portion in the cross section is measured by an energy dispersive fluorescent X-ray analysis using a scanning electron microscope. | 12-31-2009 |
20100003172 | ZONE CATALYZED SOOT FILTER - A catalyzed soot filter is comprised of a monolithic ceramic honeycomb body that has a catalyzed inlet zone that has a catalyst within the walls of the ceramic honeycomb inlet end to at most about 45% of the length of the catalyzed soot filter. The catalyzed inlet zone has a porosity that is at least ⅓ the porosity of a wall of the ceramic honeycomb that does not have a catalyst in the wall. | 01-07-2010 |
20100021356 | SPIN FORMED CATALYST - A catalytic device and method for forming a catalytic device are described. The devices and methods described can be used for emissions systems in heavy duty diesel engines. In particular, a method of spin forming a catalytic device generally includes disposing a mat about an outer surface of a catalyst substrate and inserting the catalyst substrate and mat inside a shell. The mat is between the shell and the catalyst substrate. The shell, catalyst substrate, and mat can be spin formed into at least a generally elliptical shape but generally other than a circle shape. | 01-28-2010 |
20100028221 | FIBROUS STRUCTURE AND PARTICULATE FILTER TYPE EXHAUST GAS PURIFYING CATALYST - A fibrous structure ( | 02-04-2010 |
20100129271 | Diesel Particle Filter with a Ceramic Filter Body - The invention relates to a diesel particle filter with a ceramic filter body ( | 05-27-2010 |
20100135866 | HONEYCOMB FILTER - A honeycomb filter including partition walls having a porous partition wall base material and a surface layer provided on only inflow side or both inflow and outflow sides of the partition wall base material, and satisfying the following conditions capable of using as a DPF. The surface layer has a peak pore diameter of from 0.3 μm to 20 μm (exclusive) being equal to or smaller than the average pore diameter of the base material; the porosity of from 60% to 95% (exclusive) when measured by mercury porosimetry being larger than that of the base material; and the thickness L | 06-03-2010 |
20100150792 | EXHAUST GAS PURIFYING CATAYST - An exhaust gas purifying catalyst having a good ignition performance is provided. The exhaust gas purifying catalyst | 06-17-2010 |
20100209309 | Black Smoke Purification Device - A black smoke purification device enabling engine performance to be retained by bringing PMs which have become giant into good contact with an oxidation catalyst. A black smoke purification device ( | 08-19-2010 |
20100209310 | HONEYCOMB FILTER AND METHOD FOR PRODUCING THE HONEYCOMB FILTER - A honeycomb filter includes an outer wall having a substantially cylindrical shape and a central axis of the substantially cylindrical shape, first walls provided at an inner side of the outer wall and extending along the central axis, and second walls provided at the inner side of the outer wall and extending along the central axis. The first walls and the second walls substantially perpendicularly cross to define cells having a substantially square shape in a cross-section perpendicular to the central axis. A thickness of the outer wall in the cross-section at a first intersection between the outer wall and a first diameter substantially parallel to the first walls in the cross-section and a thickness of the outer wall in the cross-section at a second intersection between the outer wall and a second diameter substantially parallel to the second walls in the cross-section are largest. | 08-19-2010 |
20100239469 | Monolithic exhaust treatment unit for treating an exhaust gas - A monolithic exhaust treatment device on unit ( | 09-23-2010 |
20100247400 | HONEYCOMB FILTER AND METHOD OF MANUFACTURING THE SAME - The honeycomb filter | 09-30-2010 |
20110085940 | HONEYCOMB FILTER - A honeycomb filter includes a honeycomb structure and a zeolite. The honeycomb structure has cell walls to define cells between the cell walls. The zeolite is supported on the cell walls. An amount of the zeolite is from about 80 g/L to about 150 g/L. The cells include a large volume cell and a small volume cell. A porosity of the cell walls is from about 55% to about 65%. A proportion of a sum of a pore volume A and a pore volume B relative to a total pore volume C is about 20% or less. The pore volume A indicates a pore volume of pores having a pore diameter of one half or less of the average pore diameter. The pore volume B indicates a pore volume of pores having a pore diameter of twice or more the average pore diameter. | 04-14-2011 |
20110085941 | HONEYCOMB FILTER - A honeycomb filter includes a honeycomb structure and a zeolite. The honeycomb structure has cell walls to define cells between the cell walls. The zeolite is supported on the cell walls. An amount of the zeolite is from about 80 g/L to about 150 g/L. A porosity of the cell walls is from about 55% to about 65%. A cell density in a cross section perpendicular to the longitudinal direction is from about 46.5 pcs/cm | 04-14-2011 |
20110085942 | HONEYCOMB FILTER AND UREA SCR DEVICE - A honeycomb filter includes a honeycomb structure and a zeolite. The honeycomb structure includes cell walls having a porosity of about 55% to about 65% and extending along a longitudinal direction of the honeycomb structure to define cells between the cell walls. Each of the cells is sealed at either end of the cells. The zeolite is supported on the cell walls of the honeycomb structure. An amount of the zeolite supported on the cell walls is from about 80 g/L to about 150 g/L. A thermal conductivity of the cell walls supporting the zeolite is about 3 W/mK or more. | 04-14-2011 |
20110129391 | HONEYCOMB FILTER AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb filter includes cell walls. The cell walls extend along a longitudinal direction of the honeycomb filter to define a plurality of cells each of which has one end and another end opposite to the one end along the longitudinal direction. A majority of the plurality of cells are sealed cells sealed at either the one end or the another end. A part of the plurality of cells are open cells open at both of the one end and the another end. A number of the open cells is from about 0.1% to about 4.9% of a number of the plurality of cells. | 06-02-2011 |
20110150718 | EXHAUST-GAS TREATMENT UNIT HAVING METAL FOILS OF SMALL MATERIAL THICKNESS AND METHOD FOR PRODUCING THE SAME - An exhaust-gas treatment unit includes at least one housing and a honeycomb structure having channels running between end faces of the honeycomb structure and being formed by at least partially structured metal foils having a material thickness of at most 50 μm. At least part of the metal foils is constructed with a fold of a predefined width at least in the region of an end face, and the metal foil is welded to itself at a weld seam in the region of this fold. A method for producing such an exhaust-gas treatment unit using a suitable welding process is also provided. | 06-23-2011 |
20110189055 | CATALYTIC CONVERTER SUBSTRATE STRUCTURE - A catalytic converter substrate structure includes an outer peripheral wall having a first end and a second end. A plurality of cells are defined by walls that are disposed within the outer peripheral wall and are interconnected to the outer peripheral wall. The plurality of cells extend axially along a length of the outer wall and have a varying density. | 08-04-2011 |
20120014842 | DIESEL PARTICLE FILTER WITH IMPROVED BACK PRESSURE CHARACTERISTICS - Proposed is a diesel particle filter which comprises a ceramic wall-flow filter substrate and a coating applied in the inflow ducts, which coating is composed of material with a high melting point. The coating ( | 01-19-2012 |
20120014843 | VEHICLE EXHAUST GAS TREATMENT APPARATUS - A vehicle exhaust gas treatment apparatus includes a DPF with SCR coating. An inlet piping fluidly communicates with the DPF and is positioned generally parallel to the DPF. An outlet pipe fluidly communicates with the DPF and is positioned generally parallel to the DPF. The apparatus is arranged such that exhaust gas flows through the inlet pipe in a first direction from a first inlet pipe end to a second inlet pipe end. The exhaust gas flows through the DPF in a second direction, generally parallel to and opposite to the first direction. The gas flows through the outlet pipe generally in the first direction from a first outlet pipe end to a second outlet pipe end. | 01-19-2012 |
20120107188 | EXHAUST GAS PURIFYING CATALYST AND PRODUCTION PROCESS THEREOF - Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also, disclosed is a production process of an exhaust gas purifying catalyst, by which the above exhaust gas purifying catalyst can be produced. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support. | 05-03-2012 |
20120177541 | EXHAUST GAS PROCESSING DEVICE - An exhaust gas processing device includes a pillar honeycomb structure, a first inorganic mat member, a first cylindrical metallic member, a second inorganic mat member, a second cylindrical metallic member, and an insulating layer. The insulating layer has a thickness of about 20 μm to about 400 μm and is provided at least one of a first part between an inner surface of the first cylindrical metallic member and the first inorganic mat member, a second part between an outer surface of the first cylindrical metallic member and the second inorganic mat member, and a third part between an inner surface of the second cylindrical metallic member and the second inorganic mat member. | 07-12-2012 |
20120224998 | Exhaust Gas Denitrifying System having Noise-Reduction Structure - An exhaust gas denitrifying system having a noise-reduction structure includes a reactor in which a chemical reaction that converts nitrogen oxides included in exhaust gas into nitrogen by denitrifying the nitrogen oxides using a catalyst takes place. The reactor includes a catalytic filter unit coated with a catalyst and provided with a plurality of through-holes through which exhaust gas passes; and a noise-reducing unit for removing noise from the exhaust gas denitrified by the catalytic filter unit. The reactor denitrifies the nitrogen oxides, and simultaneously reduces the noise, thus reducing the size of the exhaust gas denitrifying system. | 09-06-2012 |
20120244042 | HONEYCOMB FILTER - In a honeycomb filter | 09-27-2012 |
20120251400 | HONEYCOMB STRUCTURAL BODY AND EXHAUST GAS CONVERSION APPARATUS - A honeycomb structural body includes at least one honeycomb unit including a β type zeolite, a phosphate group zeolite, and an inorganic binder and having a plurality of through holes divided by partition walls and arranged in a longitudinal direction of the honeycomb unit. The β type zeolite includes secondary particles having an average particle diameter of approximately 0.5 μm or more and approximately 5 μm or less. The phosphate group zeolite includes primary particles having an average particle diameter of approximately 0.5 μm or more and approximately 5 μm or less. A ratio of a mass of the phosphate group zeolite with respect to a total mass of the β type zeolite and the phosphate group zeolite is approximately 5% or more and approximately 35% or less. | 10-04-2012 |
20120251401 | HONEYCOMB STRUCTURE, METHOD OF MANUFACTURING HONEYCOMB STRUCTURE, AND EXHAUST GAS CONVERTER - A honeycomb structure includes a honeycomb unit having a plurality of through holes defined by partition walls along a longitudinal direction of the honeycomb unit. The honeycomb unit is manufactured by molding raw material paste by extrusion molding and thereafter by firing the molded raw material paste. The raw material paste contains zeolite obtained by ion-exchange with iron ions and an inorganic binder. A specific surface area of the zeolite is more than or equal to approximately 500 m | 10-04-2012 |
20120251402 | HONEYCOMB STRUCTURE AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb structure includes a ceramic block including a plurality of honeycomb fired bodies. Each of the plurality of honeycomb fired bodies includes large volume cells and small volume cells. Either one of the end portions of each of the large volume cells and the small volume cells is plugged. An aperture in the cross section in a central part of the honeycomb structure is about 65% or more. A ratio of an aperture of the first end face to an aperture of the second end face of the honeycomb structure is about 1.4 or more. Each of the cell walls except the peripheral walls has a thickness of about 0.1 mm to about 0.2 mm. The honeycomb structure has a diameter of about 200 mm or more. A ratio of a length to the diameter of the honeycomb structure is about 1.0 or less. | 10-04-2012 |
20120308439 | COLD START CATALYST AND ITS USE IN EXHAUST SYSTEMS - A cold start catalyst is disclosed. The cold start catalyst comprises a zeolite catalyst and a supported platinum group metal catalyst. The zeolite catalyst comprises a base metal, a noble metal, and a zeolite. The supported platinum group metal catalyst comprises one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the cold start catalyst. The cold start catalyst and the process result in improved NO | 12-06-2012 |
20130095003 | HIGH-TEMPERATURE-RESISTANT COMPONENT OF HIGH-GRADE STEEL WITH A COBALT-CONTAINING COATING, EXHAUST-GAS TREATMENT UNIT AND METHOD FOR PRODUCING SUCH AN EXHAUST-GAS TREATMENT UNIT - A high-temperature-resistant component for an exhaust-gas treatment unit, an exhaust-gas treatment unit and a method for producing such a unit, include providing the component or the exhaust-gas treatment unit with a surface layer intended to prevent the formation of chromium carbide bridges during a brazing process for producing the exhaust-gas treatment unit. | 04-18-2013 |
20130136664 | CATALYST, CATALYTIC CONVERTER, AND METHOD FOR THE PRODUCTION THEREOF - A catalyst which remediates hydrocarbon fuel combustion exhaust, including a non-PGM containing aerogel which catalyzes the oxidation of carbon monoxide and hydrocarbons and the reduction of nitrogen oxides present in the exhaust, a catalytic converter made therefrom, and a method for the production thereof is disclosed. | 05-30-2013 |
20130171036 | EXHAUST GAS PURIFICATION FILTER, AND METHOD FOR PRODUCING SAME - Provided are an exhaust gas purification filter having a high particulate matter (PM) combustion efficiency, a low coefficient of thermal expansion, and superior thermal resistance and a method for producing the same. An exhaust gas purification filter is formed by sintering columnar aluminum titanate particles whose surfaces have a catalyst material deposited thereon and which have an average aspect ratio (=number average major-axis length/number average minor-axis length) of 1.3 or more, wherein a catalyst made from the catalyst material by thermal treatment during the sintering is supported on the surface of the aluminum titanate. | 07-04-2013 |
20130224082 | Hydrothermally Stable, Low-Temperature NOx Reduction NH3-SCR Catalyst - A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al | 08-29-2013 |
20130259761 | CATALYTIC CONVERTER - A catalytic converter has a honeycomb structure, a casing and a supporting mat. A reinforced section is formed in at least a second end section of the honeycomb structure, from which exhaust gas is discharged to the outside of the honeycomb structure. The reinforced section has a denser structure than a general section excepting a formation section of the reinforced section in the honeycomb structure. Exhaust gas is introduced into the inside of the honeycomb structure from the first end section. The exhaust gas is discharged from the second end section to outside of the honeycomb structure. A stepped section is formed in the reinforced section. The general section has a porosity within a range of 45 to 70%, and more preferably a range of 45 to 65%. The reinforced section has a porosity within a range of 5 to 35%. | 10-03-2013 |
20140050629 | LAYERED COMPLEX OXIDE, OXIDATION CATALYST AND DIESEL PARTICULATE FILTER - Provided are a layered complex oxide that can lower PM oxidation temperature and increase oxidation rate, and a nitrogen oxides reduction catalyst, a three-way catalyst, a DPF and an oxidation catalyst, each of which includes the layered complex oxide. The layered complex oxide has a layered perovskite structure and has a composition represented by the formula: (Ln | 02-20-2014 |
20140086805 | HONEYCOMB CATALYST BODY - The honeycomb catalyst body includes a honeycomb structure having porous partition walls, outflow side plugged portions, inflow side plugged portions, and catalyst layers formed on the surfaces of the partition walls on the side of the outflow cells, the cells are formed so that an open area of each outflow cell is larger than an open area of each inflow cell, a porosity of the partition walls of the honeycomb structure is from 25 to 55%, and in a cross section parallel to the extending direction of the cells, a total area of the catalyst layers formed on the surfaces of the pores in the partition walls is 5% or less of a total area of the pores in the partition walls. | 03-27-2014 |
20140112835 | HONEYCOMB STRUCTURE, METHOD FOR PRODUCING SAME, EXHAUST GAS PURIFICATION DEVICE AND SILICOALUMINOPHOSPHATE PARTICLES - A honeycomb structure of the invention includes a honeycomb unit provided with a plurality of through holes arrayed in a longitudinal direction with a partition wall therebetween, in which the honeycomb unit is produced by extruding and firing raw material paste containing silicoaluminophosphate particles and an inorganic binder, and the silicoaluminophosphate particles have a specific surface area in a range of 200 m | 04-24-2014 |
20140120003 | ELECTRO-CATALYTIC HONEYCOMB FOR EXHAUST EMISSIONS CONTROL - An electro-catalytic honeycomb for controlling exhaust emissions, which adopts to purify a lean-burn exhaust, comprises a honeycomb structural body, a solid-oxide layer and a cathode layer. The honeycomb structural body includes an anode, a plurality of gas channels, and a shell. The anode is formed as a backbone, the gas channels are formed inside the backbone for passing the exhaust, and the shell covers an outer surface of the anode. The solid-oxide layer is adhered to an inner surface of the anode and connects the shell so as to encapsulate the anode. The cathode layer is adhered to a tube wall of the solid-oxide layer and has an oxidizing environment. The anode has a reducing environment. The reducing and the oxidizing environment facilitate an electromotive force to occur between the anode and the cathode layer to promote a decomposition of nitrogen oxides of the exhaust into nitrogen and oxygen. | 05-01-2014 |
20140127087 | COMPOSITE PARTICLE, HONEYCOMB STRUCTURE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION DEVICE - An object of the invention is to provide composite particles that have excellent NOx purification performance and can suppress water adsorption-caused contraction and water desorption-caused expansion and to provide a honeycomb structure that has excellent NOx purification performance and can suppress the breakage of the honeycomb unit due to the adsorption or desorption of water, a method for manufacturing the honeycomb structure, and an exhaust gas purifying apparatus including the honeycomb structure. The composite particles of the invention are composite particles having a metallic oxide attached to silicoaluminophosphate particles with a ratio of an amount of Si to a sum of amounts of Al and P in a range of 0.16 to 0.33, in which a specific surface area is in a range of 250 m | 05-08-2014 |
20140127088 | HONEYCOMB STRUCTURE AND EXHAUST GAS SCRUBBER - A honeycomb structure includes honeycomb units which contain silicoaluminophosphate particles and an inorganic binder and are provided with a plurality of cells that extend in the longitudinal direction from a first end surface to a second end surface of the honeycomb structure and are partitioned by cell walls, in which Si/(Al+P) of the silicoaluminophosphate particles is in a range of 0.16 to 0.33 by molar ratio, a thickness of the cell wall is in a range of 0.10 mm to 0.25 mm, a cell density of the cells is in a range of 93 cells/cm | 05-08-2014 |
20140134063 | METHOD FOR COATING A CATALYSED PARTICULATE FILTER AND A PARTICULATE FILTER - Method for the preparation of a wall flow particulate filter catalysed at its inlet side with a first catalyst having activity in the removal of residual hydrocarbons and carbon monoxide and catalysing at rich burn engine operation conditions the reaction of nitrogen oxides with hydrogen and/or carbon monoxide to ammonia and catalysed at its outlet side with a second catalyst having activity in the selective reduction of NOx by reaction with ammonia being formed in the inlet side. The method involves the provision of a first catalyst having a particle size larger than the filter wall mean pore size, and a second catalyst having a particle size smaller than the filter wall mean pore size, and mixing the first and second catalyst into one suspension, which is used for wash-coating from the inlet end. The second catalyst thereby diffuses into the partition wall. | 05-15-2014 |
20140147341 | LAYERED COMPLEX OXIDE, OXIDATION CATALYST, AND DIESEL PARTICULATE FILTER - A layered composite oxide is provided which is excellent in oxygen ion conductivity and, is capable of effectively decreasing a PM oxidation temperature without using a noble metal such as platinum or the like. The layered composite oxide is used in an oxidation catalyst, DPF, a ternary catalyst, and a NOx purification catalyst. The layered composite oxide has a composition represented by the following formula (1), La | 05-29-2014 |
20140147342 | HONEYCOMB CATALYST BODY - There is disclosed a honeycomb catalyst body including porous partition walls in which a plurality of cells that become through channels of a fluid are defined and formed, and a plurality of pores are formed, wherein a cell density is from 93 to 186 cells/cm | 05-29-2014 |
20140154144 | HONEYCOMB CATALYST BODY - A honeycomb catalyst body capable of containing in a limited space, having high mechanical strength, less pressure loss, and suitable purification performance is provided, and it includes a plugged honeycomb structure having porous partition walls defining cells, plugged portions, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and catalysts loaded onto the projecting portions, wherein a porosity of the partition walls is 40 to 70%, thicknesses of the projecting portions is from 30 to 140% of thicknesses of the partition wall, an amount of the catalyst loaded onto the partition walls thereof is smaller than an amount of the catalyst loaded onto the projecting portions, one catalyst loaded onto projecting portions is a selective reduction catalyst, and another catalyst loaded onto projecting portions is an ammonia slip preventing catalyst. | 06-05-2014 |
20140154145 | HONEYCOMB CATALYST BODY - A honeycomb catalyst body includes a plugged honeycomb structure having porous partition walls, inflow side plugged portions, outflow side plugged portions, and porous projecting portions which project so as to extend from the partition walls into the cells and are formed integrally with the partition walls; and catalyst loaded onto the projecting portions of the plugged honeycomb structure. A porosity of the partition walls of the plugged honeycomb structure is 40 to 70%, a thickness of the projecting portions is from 30 to 140% of a thickness of the partition walls, and an amount of a catalyst loaded onto pore surfaces of the partition walls of the plugged honeycomb structure is smaller than an amount of the catalyst loaded onto the projecting portions. The catalyst loaded onto projecting portions is a three-way catalyst, and the catalyst loaded onto projecting portions is a selective reduction catalyst. | 06-05-2014 |
20140154146 | HONEYCOMB CATALYST BODY - A honeycomb catalyst body having high mechanical strength, less pressure loss, and suitable purification performance is provided, and includes a plugged honeycomb structure having porous partition walls defining cells extending from one end face to another end face, inflow side plugged portions provided at one ends of the predetermined cells, outflow side plugged portions provided at another ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and a catalyst loaded onto the projecting portions of the plugged honeycomb structure, wherein porosities of the partition walls are 40% or more and smaller than 60%, thicknesses of the projecting portions are from 30 to 140% of thicknesses of the partition walls, and a catalyst amount loaded onto the partition walls thereof is smaller than a catalyst amount loaded onto the projecting portions. | 06-05-2014 |
20140154147 | MAT FOR MOUNTING A POLLUTION CONTROL ELEMENT FOR THE TREATMENT OF EXHAUST GAS - The present invention relates to a mat for mounting one or more pollution control elements in a pollution control device for the treatment of exhaust gases, said mat comprising heat-treated glass fibers containing Al | 06-05-2014 |
20140170032 | METAL FILTER FOR PURIFYING EXHAUST GAS FROM SHIP, AND PREPARATION METHOD THEREOF - The present invention relates to a metal filter for purifying the exhaust gas from a ship, and a preparation method thereof. The purpose of the present invention is to provide: a metal filter for purifying the exhaust gas from a ship, capable of reducing nitrogen oxide by 85% or more at 250-300° C.; and a preparation method thereof. The metal filter for removing nitrogen oxide contained in the exhaust gas from a ship of the present invention comprises an integrated catalyst, wherein a metal substrate comprising irregularities is coated with a low temperature active catalyst in which vanadium (V), tungsten (W) and alumina sol are supported in a Ti-pillared clay (Ti-PILC) powdered support. | 06-19-2014 |
20140186228 | FILTER FOR FILTERING PARTICULATE MATTER FROM EXHAUST GAS EMITTED FROM A COMPRESSION IGNITION ENGINE - A filter for filtering particulate matter (PM) from exhaust gas emitted from a compression ignition engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a wash coat comprising a plurality of solid particles comprising a molecular sieve promoted with at least one metal wherein the porous structure of the wash coated porous substrate contains pores of a second mean pore size, and wherein the second mean pore size is less than the first mean pore size. | 07-03-2014 |
20140205509 | HONEYCOMB CATALYST BODY - A honeycomb catalyst body includes a tubular honeycomb base material having porous partition walls to define and form a plurality of cells extending as through channels of a fluid from one end surface from which the fluid flows in to the other end surface from which the fluid flows out, and a catalyst loaded onto the partition walls. In the honeycomb base material, at least one slit which is open in a side surface of the honeycomb base material is formed, and a width of the slit is from 1.0 to 10.0 mm. | 07-24-2014 |
20140271394 | IMPERMEABLE POLYMER COATING ON SELECTED HONEYCOMB CHANNEL SURFACES - Absorbent structures for CO | 09-18-2014 |
20140294691 | HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME - A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells, and an outer peripheral wall; and a pair of electrode sections disposed on a side surface of the honeycomb structure body, an electrical resistivity of the honeycomb structure body is from 1 to 200 Ωcm, each of the pair of electrode sections is formed into a band shape extending in an extending direction of the cells, the electrode section contains silicon and an aggregate, and a ratio (the silicon/the aggregate) of a volume of the silicon to be contained in the electrode section to a volume of the aggregate to be contained in the electrode section is from 60/40 to 80/20. | 10-02-2014 |
20140294692 | HONEYCOMB STRUCTURE AND MANUFACTURING METHOD OF THE SAME - A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells, and an outer peripheral wall; and a pair of electrode sections disposed on a side surface of the honeycomb structure body, an electrical resistivity of the honeycomb structure body is from 1 to 200 Ωcm, each of the pair of electrode sections is formed into a band shape extending in an extending direction of the cells, the electrode section is constituted of a porous body in which particles made of silicon carbide as an aggregate are bound by a binding material, silicon carbide as the aggregate constituting the electrode sections contains β-SiC having a stacking fault of 2% or less, and the binding material constituting the electrode sections contains silicon and a metal silicide. | 10-02-2014 |
20140322091 | METHOD AND ARRANGEMENT FOR CLEANING A PARTICLE FILTER - A method and an arrangement for cleaning a particulate filter in a vehicle provided with an internal combustion engine is provided. The particulate filter is mounted in an operative position inside an exhaust muffler under normal operation of the engine. The method involves performing a cleaning process including disassembling and removing the particulate filter from a first end of the muffler; reversing and reassembling the particulate filter a cleaning position at the first end of the muffler; starting and operating the engine by controlling the engine speed according to a predefined cycle until a predetermined condition is fulfilled; and stopping the engine and returning the particulate filter to its operative position inside the exhaust muffler. | 10-30-2014 |
20140356243 | Systems and Methods for Providing ZPGM Perovskite Catalyst for Diesel Oxidation Applications - Diesel oxidation ZPGM catalyst systems using Y | 12-04-2014 |
20150017074 | EXHAUST GAS CLEANING CATALYST APPARATUS - An exhaust gas cleaning catalyst apparatus includes: a catalyst carrier; an outer tube for storing the catalyst carrier; and a holding member interposed between the catalyst carrier and the outer tube in contact with the outer peripheral surface of the catalyst carrier and the inner peripheral surface of the outer tube, wherein a clearance between the inner peripheral surface of the outer tube and the outer peripheral surface of the catalyst carrier narrows toward the flow direction of exhaust gas. | 01-15-2015 |
20150017075 | HONEYCOMB FILTER AND PRODUCTION METHOD FOR HONEYCOMB FILTER - A honeycomb filter includes a ceramic honeycomb substrate, an auxiliary filter layer, an SCR catalyst, and a portion. The ceramic honeycomb substrate has cell walls provided along a longitudinal direction of the ceramic honeycomb substrate to define cells through which fluid is to pass and which have a fluid inlet end and a fluid outlet end opposite to the fluid inlet end along the longitudinal direction. The cells include first cells and second cells. The auxiliary filter layer is provided on first surfaces of first cell walls of the first cells. The SCR catalyst is supported on second surfaces of second cell walls of the second cells. The second surfaces substantially correspond to the first surfaces. The portion satisfies a01-15-2015 | |
20150030510 | HONEYCOMB STRUCTURE - A honeycomb structure of the present invention includes a honeycomb structure body and a pair of electrode member arranged at a side surface of the honeycomb structure body. The honeycomb structure body has an electrical resistivity of 1 to 200 Ωcm, and the respective pair of electrode members is formed into a band-like shape extending in a direction in which the cells extend. In a cross section perpendicular to the cell extending direction, one of the electrode members is arranged opposite to another of the electrode members sandwiching a center of the honeycomb structure body. One or more of slits, which being open to a side surface, are formed at the honeycomb structure body. At least the one slit is formed so as not to intersect with a straight line connecting center portions of the respective pair of electrode members in the cross section perpendicular to the cell extending direction. | 01-29-2015 |
20150037222 | PROCESSING APPARATUS EQUIPPED WITH CATALYST-SUPPORTING HONEYCOMB STRUCTURE, AND METHOD FOR MANUFACTURING SAME - A processing apparatus equipped with a catalyst-supporting honeycomb structure, which is characterized in that corrugated plate-like glass fiber papers having a functional catalyst supported thereon and flat plate-like glass fiber papers having the same functional catalyst supported thereon are alternately laminated without being bonded to each other, to form a catalyst-supporting honeycomb structure, and this catalyst-supporting honeycomb structure is packed in a casing. | 02-05-2015 |
20150056106 | EXHAUST GAS PURIFICATION CATALYST, EXHAUST GAS PURIFICATION DEVICE AND FILTER, AND PRODUCTION METHOD FOR SAID CATALYST - Provided is an exhaust gas purification catalyst having high catalytic activity enabling combustion of PM (particulate matter) at low temperatures and excellent thermal resistance, an exhaust gas purification device and filter having high combustion efficiency of PM and excellent durability, and a method for producing the catalyst. The exhaust gas purification catalyst of the present invention is composite oxide particles containing at least one alkali metal, Si, and Zr. | 02-26-2015 |
20150071829 | HONEYCOMB FILTER, EXHAUST GAS PURIFYING APPARATUS, AND METHOD FOR PURIFYING EXHAUST GAS - A honeycomb filter includes a honeycomb fired body made of silicon carbide particles. The honeycomb fired body includes cell walls, a peripheral wall, and a silicon-containing oxide layer. The cell walls are to define cells placed in a longitudinal direction of the honeycomb fired body. The cell walls have a thickness of about 0.2 mm or less. Each of the cells has a first end portion and a second end portion opposite to the first end portion in the longitudinal direction. Either the first end portion or the second end portion of the each of the cells is sealed. The peripheral wall constitutes a periphery of the honeycomb fired body. The peripheral wall has a thickness larger than the thickness of the cell walls. The silicon-containing oxide layer is provided on surfaces of the silicon carbide particles. | 03-12-2015 |
20150078968 | TRANSITION METAL/ZEOLITE SCR CATALYSTS - A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt. | 03-19-2015 |
20150093300 | METHOD AND SYSTEM USING A FILTER FOR TREATING EXHAUST GAS HAVING PARTICULATE MATTER - A filter for filtering particulate matter (PM) from exhaust gas emitted from a positive ignition engine or a compression ignition engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a washcoat comprising a plurality of solid particles wherein the porous structure of the washcoated porous substrate contains pores of a second mean pore size, and wherein the second mean pore size is less than the first mean pore size. | 04-02-2015 |
20150118121 | TRANSITION METAL/ZEOLITE SCR CATALYSTS - A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt. | 04-30-2015 |
20150139862 | STRUCTURED ADSORBENT BED FOR CAPTURE OF CO2 FROM LOW PRESSURE AND LOW CONCENTRATION SOURCES - A structured adsorbent sheet, is provided including a nano-adsorbent powder, and a binder material, wherein the nano-adsorbent powder is combined with the binder material to form an adsorbent material, and a porous electrical heating substrate, wherein the adsorbent material is applied to the porous electrical heating substrate thereby forming a structured adsorbent sheet. | 05-21-2015 |
20150147239 | ZPGM Underfloor Catalyst for Hybrid Exhaust Treatment Systems - Hybrid PGM-ZPGM exhaust treatment systems are disclosed. The systems include a PGM close-couple catalytic converter followed by an underfloor ZPGM catalytic converter. The disclosed hybrid systems, including PGM based catalysts and zero-PGM based catalysts may replace pure PGM based exhaust treatment systems. The ZPGM catalyst compositions used may include copper and cerium as active ZPGM catalysts. The disclosed ZPGM underfloor converters may be designed to convert leaks from close-couple converters. | 05-28-2015 |
20150298058 | EXHAUST GAS PURIFICATION FILTER - An exhaust gas purification filter that is suitable for arrangement in an exhaust passage of an internal combustion engine and for collecting particulate matter contained in exhaust gas, comprises: exhaust gas inflow passages and exhaust gas outflow passages that are arranged alternately; and porous partitions that separate the exhaust gas inflow passages and the exhaust gas outflow passages from each other. Each of the partitions is divided into a coated zone in which a surface of a partition base is coated with a coating layer having a smaller average pore diameter than an average pore diameter of the partition base and a non-coated zone that is located on a downstream side of the coated zone and in which a surface of the partition base is not coated with the coating layer. A pore diameter of the partitions is set such that ash contained in the exhaust gas is able to pass through the partitions in the non-coated zone. A passage resistance of a partition portion located in the coated zone, the passage resistance being in a thickness direction of the partition portion located in the coated zone, is lower than a passage resistance of a partition portion located in the non-coated zone, the passage resistance being in a thickness direction of the partition portion located in the non-coated zone. | 10-22-2015 |
20150298104 | MOLTEN SALT-TYPE OFF GAS PURIFICATION CATALYST AND OFF GAS PURIFICATION FILTER - A molten salt-type exhaust gas purification catalyst has, as a catalyst component, a first composite metal oxide of cesium and vanadium, and a sulfate containing cesium and an alkaline earth metal. | 10-22-2015 |
20150315943 | Mixer for Aftertreatment of Exhaust Gases - The invention relates to a mixer for a device for selective catalytic reduction of exhaust gases from internal combustion engines. The mixer comprises a structure of mixer elements through which the mixture of exhaust gas and reducing agent is to flow. The mixer elements have an electric current flowing through them for electrical heating due to the electrical resistance thereof. The invention further relates to a device for selective catalytic reaction of exhaust gases from an internal combustion engine having an exhaust gas pipe leading to a mixer according to the invention and having a reducing agent pipe which is connected to a reservoir for reducing agent and which opens into the exhaust gas pipe in the flow direction upstream of the mixer, and a catalyst in the flow direction downstream of the mixer. | 11-05-2015 |
20150330280 | TREATMENT DEVICE EQUPPED WITH CATALYST-SUPPORTING HONEYCOMB STRUCTURE, AND METHOD FOR PRODUCING SAME - To provide a treatment device equipped with a catalyst-supporting honeycomb structure, the device being for use in, for example, an exhaust gas purification treatment, hydrogen production by ammonia decomposition or the like, and a method for producing the same. The catalyst-supporting honeycomb structure is produced by forming the inorganic binder-containing functional catalyst-supporting corrugated glass paper without removing an organic binder originally contained in the glass paper and by using the corrugated glass paper in combination with the inorganic binder-containing functional catalyst-supporting flat glass paper. In the treatment device equipped with a catalyst-supporting honeycomb structure, a corrugated glass paper having an inorganic binder-containing functional catalyst supported thereon and a flat glass paper having the same inorganic binder-containing functional catalyst supported thereon are alternately stacked to form the catalyst-supporting honeycomb structure, and this catalyst-supporting honeycomb structure is packed in a casing. | 11-19-2015 |
20150352523 | CATALYTIC CONVERTER - Provided is a catalytic converter in which the entire catalyst constituting the catalytic converter can be efficiently utilized to purify exhaust gas, and the emission of hydrogen sulfide can be suppressed. | 12-10-2015 |
20150352524 | CATALYTIC CONVERTER - There is provided a catalytic converter that offers high exhaust gas cleaning performance by effectively utilizing a whole catalyst that constitutes the catalytic converter. | 12-10-2015 |
20150354427 | CATALYTIC CONVERTER - A catalytic converter comprises: a catalyst carrier that purifies exhaust gases from an internal combustion engine; and a catalyst housing tube that houses the catalyst carrier. The catalyst housing tube comprises: an inlet-side conical part that comprises an exhaust-gas inlet, an inner diameter of the inlet-side conical part increasing as a distance from the exhaust-gas inlet increases; a tube part that comprises the catalyst carrier arranged therein; and, an outlet-side conical part that comprises an exhaust-gas outlet, an inner diameter of the outlet-side conical part increasing as a distance from the exhaust-gas outlet increases. A conical inner tube is further provided inside the inlet-side conical part, a diameter of the conical inner tube being smaller than that of the inlet-side conical part, and, the inlet-side conical part and the conical inner tube form a double structure upstream of the catalyst carrier. | 12-10-2015 |
20160038877 | CATALYST CONVERTER - A catalyst converter includes: a substrate ( | 02-11-2016 |
20160045866 | DEVICE OF DEODORIZING AND MINIMIZING VOC IN EXHAUST GAS WITH PHOTOCATALYST - A device of deodorizing and minimizing VOC in exhaust gas with photocatalyst is equipped with UV lamp wrapped with photocatalyst coating fiberglass sleeve, disposed in an exhaust gas treatment chamber. At an inlet end, exhaust gas passes an activated carbon honeycomb plate which adsorbs VOC gas of the exhaust gas. The photocatalyst-based exhaust gas treatment chamber is installed in a manner to face the sun. Sunlight falls on the exhaust gas treatment chamber, thus causes the activated carbon honeycomb plate to release the otherwise adsorbed VOC gas. After that, undergoing photocatalyst-based exhaust-gas-borne VOC treatment system, the released VOC gas is oxidized and discharged without odorous. | 02-18-2016 |
20160051931 | UREA HYDROLYSIS CATALYST, SELECTIVE REDUCTION CATALYST CONTAINING UREA HYDROLYSIS MATERIAL, AND EXHAUST GAS CLEANING APPARATUS - A urea hydrolysis catalyst and a selective reduction catalyst containing a urea hydrolysis material which have an excellent hydrolysis ability of urea-water solution to NH | 02-25-2016 |
20160061082 | CATALYST MODULE WITH CATALYST ELEMENTS - The invention relates to a catalyst module with internal fittings made of catalyst elements, wherein the surface area of the individual catalyst elements, against which flow is directed, is greater than the flow entry surface area of the catalyst module, wherein the surface of the module side facing the main direction of flow is defined as the module entry surface, and wherein the catalyst elements in the catalyst module are positioned such that flue gas glows through said elements in a direction differing from the entry side and/or the exit side direction of flow. | 03-03-2016 |
20160067653 | HONEYCOMB FILTER - In a cross section perpendicular to a central axis direction of the honeycomb substrate, cells are arranged so that a periphery of an inlet plugged cell is surrounded with four rectangular outlet plugged cells and four square outlet plugged cells, and in the cross section, a partition wall center distance a, a partition wall center distance b and a partition wall thickness t satisfy the following equation (1). Additionally, an amount of a catalyst per unit volume of partition walls which is loaded onto the partition walls defining the rectangular outlet plugged cells and the inlet plugged cells is larger than an amount of a catalyst per unit volume of the partition walls which is loaded onto the partition walls defining the rectangular outlet plugged cells and the square outlet plugged cells. | 03-10-2016 |
20160115835 | DIESEL PARTICULATE FILTER AND EXHAUST GAS PURIFICATION DEVICE - Provided is a novel DPF which can prevent PM from accumulating on the surface and interior of a filter substrate, and can suppress an increase in back pressure caused by exhaust gas. The DPF has a configuration in which an inorganic porous layer, which includes a metal oxide or a metal composite oxide and provided with surface irregularities having a thickness of at least 50% of the thickness of the inorganic porous layer, is formed on part or all of the surface of the dividing wall on the side where exhaust gas flows in. | 04-28-2016 |
20160115848 | Exhaust Gas Aftertreatment Device - The aftertreatment device has a casing ( | 04-28-2016 |
20160138448 | EXHAUST GAS PURIFICATION FILTER - An exhaust gas purification filter includes an inflow/outflow passage through which exhaust gas flows in/out, and a partition. The outflow passage and the inflow passage is alternately arranged. The partition is configured to divide the inflow passage and the outflow passage from each other, and being porous. The partition includes a coated zone where a surface of a base of the partition is covered with a first coating layer having an average pore diameter smaller than an average pore diameter of the base, and a non-coated zone where the surface of the base is not covered with the first coating layer on a downstream side of the coated zone. The average pore diameter of the base is large enough for ash to pass through the partition, and the first coating layer is constituted by a plurality of particle groups with different average particle diameters from each other. | 05-19-2016 |
20160200067 | HONEYCOMB STRUCTURE, MANUFACTURING METHOD FOR THE SAME, AND CANNING STRUCTURE | 07-14-2016 |
20180023445 | CATALYTIC CONVERTERS HAVING NON-LINEAR FLOW CHANNELS | 01-25-2018 |
20190144342 | HONEYCOMB STRUCTURE AND PRODUCTION METHOD FOR SAID HONEYCOMB STRUCTURE | 05-16-2019 |