Patent application number | Description | Published |
20090004079 | MULTI-COMPONENT CATALYST SYSTEM AND METHOD FOR THE REDUCTION OF NOx - A catalyst system for the reduction of NO | 01-01-2009 |
20090075813 | CATALYST AND METHOD OF MANUFACTURE - Disclosed herein is a catalytic composition comprising a first catalyst composition portion that comprises a zeolite; and a second catalyst composition portion that comprises a catalytic metal disposed upon a porous inorganic substrate; the first catalyst composition portion and the second catalyst composition portion being in an intimate mixture. Disclosed herein is a method, comprising mixing a first catalyst composition portion with the second catalyst composition portion to form a catalytic composition; the first catalyst composition portion comprising a zeolite and the second catalyst composition portion comprising a metal disposed upon a porous substrate. | 03-19-2009 |
20090139215 | METHODS FOR REDUCING EMISSIONS FROM DIESEL ENGINES - A method is provided for operating a diesel engine with reduced emissions. The method comprises combusting a first biodiesel blend fuel in a diesel engine resulting in the production of diesel exhaust gases containing NOx. The diesel exhaust gases are admixed with a second biodiesel blend fuel, and the second biodiesel blend fuel is hydrolyzed to form reducing agents. The diesel exhaust gases containing NOx are passed through an NOx-reducing catalyst to reduce the NOx through a selective catalytic reduction reaction with the reducing agents. The invention further provides a method for operating a diesel engine with reduced emissions, comprising combusting a first biodiesel blend fuel in a diesel engine resulting in the production of diesel exhaust gases containing NOx. A second biodiesel blend fuel is converted in a fuel processor thereby forming reducing agents, and the diesel exhaust gases are admixed with the reducing agents. The diesel exhaust gases containing NOx are passed through an NOx-reducing catalyst to reduce the NOx through a selective catalytic reduction reaction with the reducing agents. | 06-04-2009 |
20090173058 | SYSTEM AND METHOD FOR THE ON-BOARD PRODUCTION OF REDUCTANTS - A system is provided for the on-board production of reductants. The system comprises a fuel tank adapted to directly or indirectly supply a first fuel stream and a second fuel stream. An engine is in fluid communication with the fuel tank, and is configured to receive the first fuel stream and create an exhaust stream. The system further includes an emission treatment unit to treat the exhaust stream. A fuel conversion unit is configured to receive the second fuel stream, and also receive a stream comprising oxygen to partially oxidize at least a portion of the second fuel stream thereby forming reductants. In addition, the fuel conversion unit is configured to supply a reductant stream comprising the reductants to the exhaust stream. The invention further provides a method for the on-board production of reductants including supplying a first fuel stream to an engine, wherein the engine is configured to create an exhaust stream. A second fuel stream and a stream comprising oxygen are supplied to a fuel conversion unit. At least a portion of the second fuel stream is partially oxidized in the fuel conversion unit to form reductants, and a reductant stream comprising the reductants is supplied to the exhaust stream. The selective catalytic reduction of NOx present in the exhaust stream is performed. | 07-09-2009 |
20090173061 | OPTIMIZED REDUCTION OF NOx EMISSIONS FROM DIESEL ENGINES - A system is provided for operating a diesel engine with reduced emissions of NOx. The system comprises a fuel tank adapted to directly or indirectly supply a first premixed fuel stream and a second premixed fuel stream, wherein each fuel stream comprises a primary fuel component and a reductant component. An engine is in fluid communication with the fuel tank, whereby the engine is configured to receive the first premixed fuel stream and create an exhaust stream. The system includes an emission treatment unit to treat the exhaust stream, and a separation unit configured to receive the second premixed fuel stream. The separation unit is also configured to separate the second premixed fuel stream into a first fraction stream and a second fraction stream, and supply the first fraction stream to the exhaust stream. The first fraction stream comprises a higher concentration of the reductant component than the second fraction stream. A temperature sensor measures the temperature of the exhaust stream, whereby the concentration of the reductant component in the exhaust stream is controlled based on the measured temperature of the exhaust stream. The invention further provides a method for operating a diesel engine with reduced emissions of NOx. The method includes supplying a first premixed fuel stream to an engine, wherein the engine is configured to create an exhaust stream. A second premixed fuel stream is supplied to a separation unit, wherein the first and second premixed fuel streams each comprise a reductant component and a primary fuel component. At least a portion of the second premixed fuel stream is separated into a first fraction stream and a second fraction stream via the separation unit, wherein the first fraction stream comprises a higher concentration of the reductant component than the second fraction stream. At least a portion of the first fraction stream is supplied to the exhaust stream. The temperature of the exhaust stream is measured, and the concentration of the reductant component in the exhaust stream is controlled based on the measured temperature. The selective catalytic reduction of NOx present in the exhaust stream is performed. | 07-09-2009 |
20090263297 | CATALYST AND METHOD OF MANUFACTURE - Disclosed herein is a catalytic composition comprising a first catalyst composition portion that comprises a zeolite; and a second catalyst composition portion that comprises a catalytic metal disposed upon a porous inorganic substrate; the first catalyst composition portion and the second catalyst composition portion being in an intimate mixture. | 10-22-2009 |
20090275463 | METHOD OF MAKING A CATALYST WASHCOAT - A method for making a catalyst includes providing a sol that sol includes a catalyst and a catalyst substrate; drying the sol via freeze-drying, spray drying, freeze granulation, or supercritical fluid drying to form a powder; mixing the powder with a solvent to form a slurry; and washcoating the slurry onto a catalyst support. Another method for making a catalyst includes providing a sol, wherein the sol includes a catalyst substrate; drying the sol via freeze-drying, spray drying, freeze granulation, or supercritical fluid drying to form a powder; mixing the powder with a solvent to form a slurry; washcoating the slurry onto a catalyst support; and depositing a catalyst onto the catalyst substrate. | 11-05-2009 |
20090318283 | CATALYST COMPOSITION AND METHOD - A method comprising forming a slurry comprising a first catalyst composition, a second catalyst composition, and a solvent, wherein the first catalyst composition comprises a zeolite and the second catalyst composition comprises a second catalytic metal disposed upon a porous inorganic support; washcoating the slurry onto a substrate; and calcining the washcoated substrate. | 12-24-2009 |
20100024400 | EMISSION CONTROL SYSTEM AND METHOD - A system includes an exhaust conduit configured to conduct a stream of exhaust gas, wherein the exhaust conduit comprises a selective catalytic reduction catalyst reactor comprising a first catalyst composition; an fuel source configured to introduce a fuel into the exhaust gas stream within the exhaust conduit upstream of the selective catalytic reduction catalyst reactor; a catalytic partial oxidation reformer in fluid communication with the exhaust gas stream and upstream from the selective catalytic reduction catalyst reactor, wherein the catalytic partial oxidation reformer can introduce a hydrogen-rich syngas co-reductant into the exhaust gas stream, when a temperature of the exhaust fluid is less than a determined threshold temperature. | 02-04-2010 |
20100077733 | EMISSION SYSTEM, APPARATUS, AND METHOD - An emission reduction apparatus is provided that includes a fuel conversion unit configured to convert a first portion of fuel from a fuel tank into a set of reducing agents that includes hydrogen, an exhaust path configured to convey an exhaust stream containing nitrogen oxides away from an engine, a transport system configured to transport each of a second portion of fuel from the fuel tank, the set of reducing agents, and the hydrogen into the exhaust path such that a mixture is formed, and the catalytic material configured to aid in a conversion of at least a portion of the nitrogen oxides in the exhaust stream of the mixture into nitrogen. | 04-01-2010 |
20100095591 | EMISSIONS CONTROL SYSTEM AND METHOD - A system includes a fuel converter comprising a catalyst composition, and the catalyst composition can convert fuel into a hydrocarbon reductant stream; a separation system that separates the hydrocarbon reductant stream into a first reductant sub-stream that comprises short chain hydrocarbon molecules, and a second reductant sub-stream that comprises long chain hydrocarbon molecules; a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter, and the catalyst reactor has an inner surface that defines a first zone and a second zone, and the first zone is configured to receive the second reductant sub-stream, and the second zone is configured to receive the first reductant sub-stream; and an exhaust stream that flows into the first zone contacts the second reductant sub-stream before flowing into the second zone and contacting the first reductant sub-stream. | 04-22-2010 |
20100140137 | FUEL CONVERSION SYSTEM, APPARATUS, AND METHOD - A reductant producing apparatus and method is provided, the apparatus includes a catalyst attached to an encasement. The encasement has a first and second intake formed therein that are fluidly coupled to the catalyst. The first intake configured to allow entry of a hydrocarbon fuel into the encasement. The second intake is configured to allow entry of oxygen into the encasement. The catalyst is configured to catalyze an autothermal reaction to convert a mixture into a plurality of reductants comprising a plurality of hydrocarbons having a hydrocarbon chain length that is less than a hydrocarbon chain length of hydrocarbons in the hydrocarbon fuel. The mixture comprises the hydrocarbon fuel and the oxygen, and the mixture has a carbon-to-oxygen ratio that is greater than a one-to-one ratio. | 06-10-2010 |
20100143227 | MIXED CATALYST FOR NOx REDUCTION AND METHODS OF MANUFACTURE THEREOF - Disclosed herein is a catalyst comprising a binder; and a catalytic composition, the catalytic composition comprising a first catalyst composition that comprises a zeolite; and a second catalyst composition that comprises a catalytic metal disposed upon a porous inorganic material, wherein the porous inorganic material is a metal oxide, an inorganic oxide, an inorganic carbide, an inorganic nitride, an inorganic hydroxide, an inorganic oxide having a hydroxide coating, an inorganic carbonitride, an inorganic oxynitride, an inorganic boride, an inorganic borocarbide, or a combination comprising at least one of the foregoing inorganic materials; wherein the catalyst is in the form of an extrudate or foam. | 06-10-2010 |
20100150801 | FORMED CATALYST FOR NOx REDUCTION - The present invention provides a formed catalyst comprising a binder, a zeolite, and a catalytic metal disposed on a porous inorganic material. The zeolite domains in the formed catalyst are substantially free of the catalytic metal which is disposed on and or within the porous inorganic material. The formed catalyst is in various embodiments an extrudate, a pellet, or a foamed material. In one embodiment, the catalytic metal is silver and the porous inorganic material is γ-alumina. The formed catalysts provided are useful in the reduction of NOx in combustion gas streams. | 06-17-2010 |
20100154431 | LIQUID CARBON DIOXIDE ABSORBENT AND METHODS OF USING THE SAME - A carbon dioxide absorbent comprising a liquid, nonaqueous oligomeric material, functionalized with one or more groups that either reversibly react with CO | 06-24-2010 |
20100154639 | LIQUID CARBON DIOXIDE ABSORBENT AND METHODS OF USING THE SAME - A carbon dioxide absorbent comprising (i) a liquid, nonaqueous silicon-based material, functionalized with one or more groups that either reversibly react with CO | 06-24-2010 |
20100196236 | TEMPLATED CATALYST COMPOSITION AND ASSOCIATED METHOD - A composition includes a templated metal oxide substrate having a plurality of pores and a catalyst material includes silver. The composition under H | 08-05-2010 |
20100196237 | TEMPLATED CATALYST COMPOSITION AND ASSOCIATED METHOD - A composition includes a templated metal oxide, at least 3 weight percent of silver, and at least one catalytic metal. A method of making and a method of using are included. | 08-05-2010 |
20100233053 | CATALYST AND METHOD OF MANUFACTURE - A method is provided. The method comprises reacting a reactive solution and a templating agent to form a gel; and calcining the gel to form a catalyst composition comprising homogeneous solid mixture. The homogenous solid mixture contains (i) at least one catalytic metal and (ii) at least one metal inorganic network. The templating agent comprises an octylphenol ethoxylate having a structure [I]: | 09-16-2010 |
20110047988 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a first catalytic material disposed on a metal inorganic support; wherein the metal inorganic support has pores; and at least one promoting metal. The catalyst system further comprises a second catalytic composition comprising, (i) a zeolite, or (ii) a first catalytic material disposed on a first substrate, the first catalytic material comprising an element selected from the group consisting of tungsten, titanium, and vanadium. The catalyst system may further comprise a third catalytic composition. The catalyst system may further comprise a delivery system configured to deliver a reductant and optionally a co-reductant. A catalyst system comprising a first catalytic composition, the second catalytic composition, and the third catalytic composition is also provided. An exhaust system comprising the catalyst systems described herein is also provided. | 03-03-2011 |
20110047995 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising, (i) a first component comprising a zeolite, and (ii) a second component comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic network; wherein the pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers; wherein the first component and the second component form an intimate mixture. The catalyst system may further comprise a second catalytic composition and a third catalytic composition. The catalyst system may further comprise a delivery system configured to deliver a reductant and optionally a co-reductant. An exhaust system comprising the catalyst systems described herein is also provided. | 03-03-2011 |
20110120100 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support. The pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers. The catalytic metal comprises nanocrystals. | 05-26-2011 |
20110152064 | PROCESSING OF HIGH SURFACE AREA OXIDES - A method for coating a support with a catalyst powder is provided. The method includes preparing a slurry by mixing a catalyst precursor, substrate precursor, a templating agent and a surfactant, spray drying the slurry into a powder and calcing the powder to produce a treated powder. Another slurry is created using the treated powder and a liquid medium, such as isopropyl alcohol. A second catalytic material is added to this slurry to form a washcoat. The washcoat is applied to a support, dried and repeated until a desired amount of powder is applied to the support. The support is then calcined. | 06-23-2011 |
20110152068 | PROCESSING OF HIGH SURFACE AREA OXIDES - A method for coating a support with a catalyst powder is provided. The method includes preparing a slurry by mixing a catalyst precursor, substrate precusor, a templating agent and a surfactant, spray drying the slurry into a powder and calcing the powder to produce a treated powder. Another slurry is created using the treated powder and a liquid medium, such as isopropyl alcohol, to form a washcoat. The washcoat is applied to a support, dried and repeated until a desired amount of powder is applied to the support. The support is then calcined. | 06-23-2011 |
20110166015 | PROCESS FOR PREPARING CATALYST POWDER - The present invention details a process for producing a catalyst powder. The steps of the process include preparing catalyst slurry, drying, pyrolyzing, and calcining the catalyst slurry to obtain a calcined catalyst powder. The catalyst slurry comprises a catalyst, a liquid carrier, a templating agent, and a catalyst substrate. The catalyst slurry is dried to obtain a raw catalyst powder. The raw catalyst powder is heated in a first controlled atmosphere to obtain a pyrolyzed catalyst powder and the pyrolyzed catalyst powder is calcined in a second controlled atmosphere to obtain a calcined catalyst powder. A method of fabricating a catalyst surface and catalytic converter using the prepared catalyst powder is also illustrated. | 07-07-2011 |
20110209459 | System and Method for Controlling Nitrous Oxide Emissions of an Internal Combustion Engine and Regeneration of an Exhaust Treatment Device - A catalyst composition is provided that includes a catalytic metal secured to a substrate, and the substrate is mesoporous and has pores that are templated. A catalyst composition includes a catalytic metal secured to a mesoporous substrate. The mesoporous substrate is a reaction product of a reactive solution, a solvent, a modifier, and a templating agent. A method for controlling nitrous oxide emissions including the catalyst composition comprising introducing a regeneration fuel into an exhaust stream upstream relative to the catalyst composition and heating the exhaust stream upstream relative to the catalyst composition. When the regeneration fuel is introduced the air λ of an air/fuel mixture of a lean burn exhaust does not exceed 1. | 09-01-2011 |
20110209466 | CATALYST COMPOSITION AND CATALYTIC REDUCTION SYSTEM COMPRISING YTTRIUM - A catalyst composition, a catalytic reduction system including the catalyst composition and a system using the catalytic reduction system are provided. The catalyst composition includes a templated metal oxide substrate and a catalyst material. The templated metal oxide substrate comprises yttrium and has a plurality of pores. Yttrium is present in an amount from about 0.05 mol percent to about 3 mol percent of the substrate. The catalyst material includes a catalyst metal disposed on the templated metal oxide substrate. | 09-01-2011 |
20110239622 | EMISSION TREATMENT SYSTEM AND METHOD OF OPERATION - An emission treatment system is provided. The emission treatment system comprises a separation system and a selective catalytic reduction (SCR) catalyst. The separation system comprises a separator, a fuel inlet disposed to supply fuel to the separator, a first fuel outlet and a second fuel outlet respectively disposed to carry away fuel from the separator. The SCR catalyst comprises a catalyst composition comprising silver and templated metal oxide substrate. The emission treatment system is designed such that the separation system is configured to be in fluid communication with the SCR catalyst through the first fuel outlet during operation. A system including the emission treatment system and a combustion engine is also provided. Method of increasing NOx reduction efficiency of the SCR catalyst using fuel fraction is discussed. | 10-06-2011 |
20120019126 | OXYNITRIDE PHOSPHORS, METHOD OF PREPARATION, AND LIGHT EMITTING INSTRUMENT - An oxynitride phosphor is presented. The oxynitride phosphor has a formula: ApBqOrNs: R such that A is barium or a combination of barium with at least one of Li, Na, K, Y, Sc, Be, Mg, Ca, Sr, Ba, Zn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu; B is silicon or a combination of silicon with at least one of Al, B, Ga, and Ge; R is europium or a combination of europium with at least one of Ce, Pr, Sm, Nd, Tb, Dy, Yb, Tm, Er, Ho, and Mn. p, q, r, s are numbers such that p is greater than about 2 and less than about 6, q is greater than about 8 and less than about 10, r is greater than about 0.1 and less than about 6, and s is greater than about 10 and less than about 15. The method of preparing the oxynitride phosphors and light emitting apparatus including the oxynitride phosphors are included. | 01-26-2012 |
20120082605 | EXHAUST TREATMENT SYSTEM AND METHOD OF OPERATION - An exhaust treatment method is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The NOx catalyst is disposed to receive both the exhaust stream and reductant stream. The sensor is disposed to sense a system parameter related to carbon loading of the catalyst and produce a signal corresponding to the system parameter. The controller is disposed to receive the signal and to control dosing of the reductant stream based at least in part on the signal. The method includes sensing a system parameter related to carbon loading of a catalyst, producing a signal corresponding to the system parameter and sending the signal to a controller; and controlling a dosing of a reductant stream based at least in part on the signal. | 04-05-2012 |
20120082606 | CATALYST AND METHOD OF MANUFACTURE - According to various embodiments, a catalyst composition includes a catalytic metal secured to a porous substrate. The substrate has pores that are templated. The substrate is a product of adding a substrate precursor to a water-in-oil microemulsion including a catalytic metal salt, a solvent, a templating agent, and water. | 04-05-2012 |
20120087838 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system includes a first catalytic composition and a second catalytic composition. The first catalytic composition includes a homogeneous solid mixture, which includes a first catalytic material disposed on a first substrate. The pores of the solid mixture have an average diameter of greater than about 45 nanometers. The second catalytic composition includes at least one of a zeolite or a second catalytic material disposed on a second substrate. The second catalytic material includes an element selected from the group that includes tungsten, titanium, and vanadium. | 04-12-2012 |
20120093703 | CATALYST AND METHOD OF MANUFACTURE - A catalyst composition includes a catalytic metal secured to a porous substrate. The substrate has pores that are templated. The catalyst composition is prepared by a process that includes the steps of mixing a catalytic metal salt, a templating agent, and water to form a mixture, adding a substrate precursor to the mixture to form a slurry, and calcining the slurry to form a substrate having a porous template that is capable of supporting the catalyst composition. | 04-19-2012 |
20120107207 | SYSTEMS AND METHODS FOR ENHANCED SELECTIVE CATALYTIC REDUCTION OF NOX - A system for reducing nitrogen oxides from an exhaust fluid is provided. The system includes an exhaust source, a hydrocarbon reductant source, a first injector in fluid communication with the hydrocarbon reductant source, where the first injector receives a first hydrocarbon reductant stream from the hydrocarbon reductant source, and expels the first portion of the hydrocarbon reductant stream. The system further includes a first catalyst that receives the exhaust stream and the first hydrocarbon reductant stream, a second injector in fluid communication with the hydrocarbon reductant source, where the second injector receives a second hydrocarbon reductant stream from the hydrocarbon reductant source, and expels the second hydrocarbon reductant stream, and a second catalyst disposed to receive an effluent from the first catalyst and the second portion of the hydrocarbon reductant stream. | 05-03-2012 |
20120171095 | LIQUID CARBON DIOXIDE ABSORBENTS, METHODS OF USING THE SAME, AND RELATED SYSTEMS - A carbon dioxide absorbent composition is described, including (i) a liquid, nonaqueous silicon-based material, functionalized with one or more groups that either reversibly react with CO | 07-05-2012 |
20120216515 | DEVICE, METHOD, AND SYSTEM FOR EXHAUST GAS TREATMENT - Various methods and systems are provided for an exhaust gas treatment device for an exhaust gas treatment system. In one example, the exhaust gas treatment device includes a primary flow passage through which exhaust gas flows to the exhaust gas treatment device, a first sub-catalyst partially disposed in the primary flow passage splitting the exhaust gas into a first gas flow and a bypass flow, and a second sub-catalyst disposed downstream of the first sub-catalyst in the bypass flow forming a second gas flow, where the second gas flow is different from the first gas flow. | 08-30-2012 |
20120329644 | CATALYST COMPOSITION AND CATALYTIC REDUCTION SYSTEM - A catalyst composition, a method of preparation of catalyst composition, a catalytic reduction system including the catalyst composition and a system using the catalytic reduction system are provided. The catalyst composition includes a templated amorphous metal oxide substrate, a catalyst material, and a sulfur scavenger material. The catalyst material includes a catalyst metal disposed on the templated metal oxide substrate and the sulfur scavenger includes an alkali metal. | 12-27-2012 |
20130129575 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a first catalytic material disposed on a metal inorganic support; wherein the metal inorganic support has pores; and at least one promoting metal. The catalyst system further comprises a second catalytic composition comprising, (i) a zeolite, or (ii) a first catalytic material disposed on a first substrate, the first catalytic material comprising an element selected from the group consisting of tungsten, titanium, and vanadium. The catalyst system may further comprise a third catalytic composition. The catalyst system may further comprise a delivery system configured to deliver a reductant and optionally a co-reductant. A catalyst system comprising a first catalytic composition, the second catalytic composition, and the third catalytic composition is also provided. An exhaust system comprising the catalyst systems described herein is also provided. | 05-23-2013 |
20130303365 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support. The pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers. The catalytic metal comprises nanocrystals. | 11-14-2013 |
20140199222 | TEMPLATED CATALYST COMPOSITION AND ASSOCIATED METHOD - A composition includes a templated metal oxide substrate having a plurality of pores and a catalyst material includes silver. The composition under H | 07-17-2014 |
20140199223 | TEMPLATED CATALYST COMPOSITION AND ASSOCIATED METHOD - A composition includes a templated metal oxide, at least 3 weight percent of silver, and at least one catalytic metal. A method of making and a method of using are included. | 07-17-2014 |
20140294710 | Method For Preparing A Catalyst Composition Suitable For Removing Sulfur From A Catalytic Reduction System - A method of preparing a catalyst composition suitable for removing sulfur from a catalytic reduction system and the catalyst composition prepared by the method are provided. The method of preparation of a catalyst composition, comprises: combining a metal oxide precursor, a catalyst metal precursor and an alkali metal precursor in the presence of a templating agent; hydrolyzing and condensing to form an intermediate product that comprises metal oxide, alkali metal oxide, and catalyst metal; and calcining to form a templated amorphous metal oxide substrate having a plurality of pores wherein the alkali metal oxide and catalyst metal are dispersed in an intermixed form in the metal oxide substrate. | 10-02-2014 |
20140378296 | Manufacture of Catalyst Compositions and Systems - A method of producing a catalyst composition is provided, the method comprising mixing (i) a first component comprising a zeolite, and (ii) a second component comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support, wherein the first component and the second component form an intimate mixture, and wherein the homogeneous solid mixture is produced by mixing a reactive solution comprising a precursor of the metal inorganic support and a templating agent with a precursor of the catalyst metal, and calcining the mixture to form the homogeneous solid mixture. The templating agent affects one or more of pore size, pore distribution, pore spacing, or pore dispersity of the metal inorganic support. The pores of the solid mixture produced after calcination may have an average diameter in a range of about 1 nanometer to about 15 nanometers. | 12-25-2014 |