NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD. Patent applications |
Patent application number | Title | Published |
20150226463 | MULTIPLEX PIPE AND SYSTEM FOR RECOVERING STEAM FROM GEOTHERMAL WELLS - Provided is a multiplex pipe and a system for recovering steam from a geothermal well, which are capable of solving all of the various problems with a neutralization pipe prepared by painting or the like of an alkali-resistant coating on the inner face of an acid-resistant single pipe. A multiplex pipe | 08-13-2015 |
20150218838 | BUCKLING RESTRAINED BRACE AND LOAD-BEARING STRUCTURE PROVIDED WITH THE SAME - Provided are a buckling restrained brace including a core material that has a plate shape and extends along an axis, a restraining member that extends along the axis and covers the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler that is filled between the restraining member and the core material, and a pair of first reinforcing members that each have a plate shape and are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace. | 08-06-2015 |
20150209764 | CATALYST FOR PRODUCING HYDROCARBON FROM SYNGAS, METHOD FOR PRODUCING CATALYST, METHOD FOR REGENERATING CATALYST, AND METHOD FOR PRODUCING HYDROCARBON FROM SYNGAS - The present invention provides a catalyst for producing a hydrocarbon from a syngas, including one of a cobalt metal and a combination of a cobalt metal and cobalt oxides; zirconium oxides; and a noble metal; supported by a catalyst support mainly composed of silica, wherein a content of impurities in the catalyst is less than or equal to 0.15 mass %; a producing method and regenerating method thereof; and a producing method of the hydrocarbon by using the catalyst. | 07-30-2015 |
20150197425 | CARBON DIOXIDE RECOVERY METHOD AND CARBON DIOXIDE RECOVERY DEVICE - A carbon dioxide recovery method according to the present application includes a carbon dioxide absorption step of bringing an absorbing solution into contact with a gas to be treated including carbon dioxide to absorb the carbon dioxide in the gas to be treated, and a carbon dioxide separation step of heating the absorbing solution in which the carbon dioxide is absorbed to separate the carbon dioxide from the absorbing solution, wherein an aqueous amine solution having properties that a rate of change in an absorbed amount of carbon dioxide relative to a temperature change gradually decreases as the temperature increases in a heating temperature range in the carbon dioxide separation step is used as the absorbing solution, and the heating temperature of the absorbing solution in the carbon dioxide separation step is set to 87° C. to 100° C. | 07-16-2015 |
20150065761 | DIESEL FUEL OR DIESEL FUEL BASE STOCK AND PRODUCTION METHOD THEREOF - Provided is a hydrotreating step (A) containing a hydroisomerization step (A1) that obtains a hydroisomerized oil (a1) by bringing a FT synthesis oil into contact with a hydroisomerization catalyst and/or a hydrocracking step (A2) that obtains a hydrocracked oil (a2) by bringing it into contact with a hydrocracking catalyst, and a fractionation step (B) that transfers at least a portion of the hydrotreated oil (a) composed of the hydroisomerized oil (a1) and/or the hydrocracked oil (a2) to a fractionator and, at the very least, obtains a middle distillate (b1) with a 5% distillation point of 130 to 170° C. and a 95% distillation point of 240 to 300° C., and a heavy oil (b2) that is heavier than the middle distillate (b1). | 03-05-2015 |
20150056112 | METHOD AND SYSTEM FOR SYNTHESIZING LIQUID HYDROCARBON COMPOUNDS - Provided is a method for synthesizing liquid hydrocarbon compounds wherein synthesizing liquid hydrocarbon compounds from a synthesis gas by a Fisher-Tropsch synthesis reaction. The method includes a first absorption step of absorbing a carbon dioxide gas, which is contained in gaseous by-products generated in the Fisher-Tropsch synthesis reaction, with an absorbent, and a second absorption step of absorbing a carbon dioxide gas, which is contained in the synthesis gas, with the absorbent which is passed through the first absorption step. | 02-26-2015 |
20150011662 | HYDROCARBON PRODUCTION APPARATUS AND HYDROCARBON PRODUCTION PROCESS - The hydrocarbon production apparatus is provided with a gas-liquid separator for cooling gaseous state hydrocarbons drawn out from a gas phase portion of a reactor for the Fischer-Tropsch synthesis reaction and liquefying a portion of the hydrocarbons. A light liquid hydrocarbon supply line for supplying light hydrocarbons is disposed between a downstream side line which is downstream from the last stage of a gas-liquid separating unit of the gas-liquid separator, and an upstream side line which is upstream from the last stage of the gas-liquid separating unit of the gas-liquid separator, wherein the downstream side line is a liquid hydrocarbon line on the downstream side through which the light hydrocarbons having cloud points lower than the temperature at an outlet of a cooler in the last stage of the gas-liquid separating unit are flowed. | 01-08-2015 |
20140326642 | HYDROGENATION REFINING CATALYST AND METHOD FOR PRODUCING A HYDROCARBON OIL - The hydrotreating catalyst of the present invention is a hydrotreating catalyst including a catalyst support including an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrotreating catalyst contains a carbonaceous substance including a carbon atom, and the content of the carbonaceous substance in the hydrotreating catalyst is 0.05 to 1% by mass in terms of the carbon atom. | 11-06-2014 |
20140305839 | KEROSENE BASE MATERIAL PRODUCTION METHOD AND KEROSENE BASE MATERIAL - A process for producing a kerosene base fuel according to the present invention comprises removing paraffins having carbon number of 7 or less from a first fraction having an initial boiling point of 95 to 140° C. and a final boiling point of 240 to 280° C. obtained from a hydrotreated oil of a Fischer-Tropsch synthetic oil to obtain a second fraction having a content of paraffins having carbon number of 7 or less of 0.1 to 0.7% by mass. | 10-16-2014 |
20140183124 | FILTER CLEANING APPARATUS - A filter cleaning apparatus used in a reaction system including; a reaction tank having a filter, first feed line connected to the filter at one end, a recovery tank connected to the other end of the first feed line, and second feed line connected to the recovery tank at one end, is provided. The filter cleaning apparatus includes; first return line connected the second feed line at one end, first and second reverse cleaning solution tanks connected to the first return line, a first flow rate adjusting valve that can adjust filtered fluid to be supplied to the first reverse cleaning solution tank, a second flow rate adjusting valve that can adjust filtered fluid to be supplied to the second reverse cleaning solution tank, and a switching section that carries either one of the filtered fluids accommodated in these reverse cleaning solution tanks by switching. | 07-03-2014 |
20140162871 | METHOD FOR PRODUCING HYDROGENATION CATALYST - The present invention provides a method for producing a hydroprocessing catalyst including a supporting step of allowing a catalyst support having a content of a carbonaceous substance containing carbon atoms of 0.5% by mass or less in terms of carbon atoms to support an active metal component containing at least one active metal element selected from metals belonging to Group 6, Group 8, Group 9 and Group 10 in the periodic table, to obtain a catalyst precursor, and a calcining step of calcining the catalyst precursor obtained in the supporting step to obtain the hydroprocessing catalyst. | 06-12-2014 |
20140157813 | TEMPERATURE CONTROL SYSTEM - A temperature control system of the invention recovers reaction heat in a reactor in which an exothermal reaction occurs, to control the temperature in the reactor. The temperature control system includes: a refrigerant drum in which vapor and a liquid refrigerant are stored in a vapor-liquid equilibrium state; a heat removing section arranged in the reactor to evaporate a part of the liquid refrigerant supplied from the refrigerant drum by the reaction heat; a Return line that returns mixed phase fluid of vapor and the liquid refrigerant generated in the heat removing section to the refrigerant drum; a Vapor outlet line that supplies vapor in the refrigerant drum to outside of the system; and a Replenishing line that supplies makeup water in an amount matched with an amount of vapor discharged to the outside of the system, to the Return line. | 06-12-2014 |
20140135410 | HYDROCARBON SYNTHESIS REACTION APPARATUS, START-UP PROCESS THEREOF, AND HYDROCARBON SYNTHESIS REACTION SYSTEM - The hydrocarbon synthesis reaction apparatus is provided with a synthesis gas supply line in which a synthesis gas is compressed and supplied by a first compressor, a reactor configured to accommodate a catalyst slurry, a gas-liquid separator configured to separate an unreacted synthesis gas and hydrocarbons discharged from the reactor into a gas and a liquid, a first recycle line in which the unreacted synthesis gas after separation into a gas and a liquid is compressed and recycled into the reactor by a second compressor, and a second recycle line configured to recycle a residual unreacted synthesis gas after separation into a gas and a liquid into the inlet side of the first compressor at the time of start-up operation when the synthesis gas is gradually increased in the amount to be introduced. | 05-15-2014 |
20140124411 | HYDROCRACKING CATALYST AND METHOD FOR PRODUCING A HYDROCARBON OIL - The hydrocracking catalyst of the present invention is a hydrocracking catalyst comprising a catalyst support comprising a zeolite and an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the hydrocracking catalyst contains a carbonaceous substance comprising a carbon atom, and the content of the carbonaceous substance in the hydrocracking catalyst is 0.05 to 1% by mass in terms of the carbon atom. | 05-08-2014 |
20140107231 | METHOD FOR STARTING UP BUBBLE-COLUMN-TYPE SLURRY-BED REACTOR, START-UP SOLVENT, AND METHOD FOR PRODUCING HYDROCARBON OIL - A method for starting up a bubble column slurry bed reactor of the present invention includes, when restarting operation of a bubble column slurry bed reactor for producing hydrocarbons by the Fischer-Tropsch synthesis reaction, feeding a hydroprocessed oil produced in the bubble column slurry bed reactor and hydroprocessed that contains 40% by mass or more of paraffin hydrocarbons having carbon number of 21 or more and that has a peroxide value of 1 ppm or less, to the bubble column slurry bed reactor. | 04-17-2014 |
20140088204 | METHOD FOR PRODUCING HYDROCARBON OIL, FISCHER-TROPSCH SYNTHESIS REACTION DEVICE, AND HYDROCARBON OIL PRODUCTION SYSTEM - The present invention provides a process for producing a hydrocarbon oil by performing a Fischer-Tropsch synthesis reaction using a reactor for a Fischer-Tropsch synthesis including a reaction apparatus having a slurry containing catalyst particles and a gaseous phase located above the slurry to obtain a hydrocarbon oil, wherein the Fischer-Tropsch reaction is performed while controlling a temperature of the slurry so that a difference T | 03-27-2014 |
20140083907 | REGENERATED HYDROCRACKING CATALYST AND METHOD FOR PRODUCING A HYDROCARBON OIL - The regenerated hydrocracking catalyst according to the present invention is a regenerated hydrocracking catalyst prepared by regenerating a used hydrocracking catalyst including: a catalyst support containing zeolite and an amorphous composite metal oxide having solid acidity; and at least one active metal supported by the catalyst support, selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the regenerated hydrocracking catalyst contains 0.05 to 1% by mass of a carbonaceous substance in terms of carbon atoms based on the entire mass of the catalyst. | 03-27-2014 |
20140080926 | METHOD FOR ESTIMATING CONTENT OF FINE PARTICLES IN SLURRY AND PROCESS FOR PRODUCING HYDROCARBON OIL - A method for estimating a particulate content in a slurry of the present invention is a method for estimating a content of particulates having a predetermined particle size or less in a slurry with solid particles dispersed in hydrocarbons including a wax, the method including, based on a correlation between a visible light transmittance and a content of solid particles having the predetermined particle size or less at a temperature at which hydrocarbons including a wax are liquefied when the solid particles having the predetermined particle size or less are dispersed in the hydrocarbons, estimating a content of particulates having the predetermined particle size or less in the slurry from a visible light transmittance of a supernatant part when the slurry is left to stand at the temperature. | 03-20-2014 |
20140076782 | REGENERATED HYDROGENATION REFINING CATALYST AND METHOD FOR PRODUCING A HYDROCARBON OIL - The regenerated hydrotreating catalyst of the present invention is a regenerated hydrotreating catalyst prepared by regenerating a used hydrotreating catalyst comprising a catalyst support including an amorphous composite metal oxide having solid acidity, and at least one active metal supported by the catalyst support and selected from noble metals of Group 8 to Group 10 in the periodic table, wherein the regenerated hydrotreating catalyst contains 0.05 to 1% by mass of a carbonaceous substance in terms of a carbon atom based on the entire mass of the catalyst. | 03-20-2014 |
20140021095 | METHOD FOR PRODUCING HYDROCARBON OIL - The present invention provides a method for producing a hydrocarbon oil, including performing a hydrocracking by continuously feeding, to a hydrocracking reactor containing a hydrocracking catalyst, a wax to be processed including: a raw wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360° C.; and an uncracked wax containing 70% by mass or more of straight-chain hydrocarbons with a boiling point of higher than 360° C., which uncracked wax is separated from a hydrocracking product discharged from the reactor, to thereby yield a hydrocarbon oil including hydrocarbons with a boiling point of 360° C. or lower. | 01-23-2014 |
20140021094 | METHOD OF REMOVING HEAVY HYDROCARBONS - Heavy hydrocarbons contained in FT off gas of a GTL process are removed by bringing the FT off gas into contact with absorption oil, by introducing the FT off gas into a distillation tower, by cooling the FT off gas or by driving the FT off gas into an adsorbent. A burner tip for heating a reformer tube, using FT off gas as fuel, is prevented from being plugged by the deposition of heavy hydrocarbons contained in the FT off gas. | 01-23-2014 |
20140018454 | ACTIVATED FISCHER-TROPSCH SYNTHESIS REACTION CATALYST AND METHOD FOR PRODUCING HYDROCARBONS - A Fischer-Tropsch synthesis reaction catalyst includes a catalyst support containing a silica and zirconium oxide in an amount of 0.5 to 14% by mass based on the mass of the catalyst support, and cobalt metal and a cobalt oxide supported on the catalyst support in an amount equivalent to 10 to 40% by mass of tricobalt tetroxide based on the mass of the catalyst, wherein the degree of reduction of the cobalt atoms is within a range from 75 to 93%, and the amount of hydrogen gas adsorption per unit mass of the catalyst at 100° C. is within a range from 0.40 to 1.0 ml/g. | 01-16-2014 |
20140018450 | METHOD OF SUPPRESSING METAL CONTAMINATION OF SYNTHESIS GAS PRODUCTION APPARATUS - A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv. | 01-16-2014 |
20140018449 | METHOD FOR PRODUCING HYDROCARBONS - A method for producing hydrocarbons includes: a synthesis step of synthesizing hydrocarbons by the Fischer-Tropsch synthesis reaction using a slurry bubble column reactor having a slurry containing catalyst particles and liquid hydrocarbons retained inside the reactor, and having a gas phase portion located above the slurry; a discharging step of passing the slurry through a filter positioned inside and/or outside the reactor, thereby separating and discharging the heavy liquid hydrocarbons; a backwash step of flushing liquid hydrocarbons through the filter in the opposite direction to the flow of the slurry, thereby returning the catalyst particles to the reactor; and a cooling and gas-liquid separation step of cooling the hydrocarbons discharged from the gas phase portion, and then separating and collecting the condensed light liquid hydrocarbons. The liquid hydrocarbons flushed through the filter in the backwash step include the light liquid hydrocarbons obtained in the cooling and gas-liquid separation step. | 01-16-2014 |
20140014089 | TEMPERATURE CONTROL SYSTEM, HYDROCARBON SYNTHESIS REACTION APPARATUS, HYDROCARBON SYNTHESIS REACTION SYSTEM, AND TEMPERATURE CONTROL PROCESS - The temperature control system is provided with a lower heat removing unit which is disposed at the bottom of a reactor inside which an exothermic reaction takes place and through which a liquid coolant is flowed, and an upper heat removing unit which is disposed in the reactor further above from the lower heat removing unit and through which the liquid coolant is flowed, recovering reaction heat inside the reactor and controlling a temperature inside the reactor. The lower heat removing unit is supplied with the liquid coolant which is adjusted for temperature by a first temperature adjustment unit, and the upper heat removing unit is supplied with the liquid coolant which is adjusted for temperature by a second temperature adjustment unit different from the first temperature adjustment unit. | 01-16-2014 |
20140011896 | METHOD FOR STOPPING OPERATION OF REACTOR - The method for stopping operation of a reactor is provided with a stop step of stopping supply of a synthesis gas containing a carbon monoxide gas and a hydrogen gas into the reactor; a slurry discharge step of discharging slurry from the reactor; a steam supply step of supplying steam higher in temperature than the decomposition temperatures of metal carbonyls into the reactor, thereby discharging gaseous matters inside the reactor; and a carbon monoxide gas detecting step of detecting an amount of carbon monoxide gas contained in the gaseous matters discharged from the reactor. In the steam supply step, supply of the steam is stopped when an amount of the detected carbon monoxide gas continuously declines to be lower than a predetermined reference value. | 01-09-2014 |
20140011152 | TOP-FIRING HOT BLAST STOVE - There is provided a top-firing hot blast stove capable of enhancing combustion efficiency in burner system, supplying high-temperature combustion gas to an entire checker chamber, and suppressing damage on a refractory material on an inner wall of a burner duct. | 01-09-2014 |
20130327687 | MAGNETIC-SEPARATION FILTER DEVICE - According to an aspect of the present invention, there is provided a magnetic-separation filter device that removes contaminants of fine ferromagnetic particles from a fluid containing such contaminants, comprising: a substantially cylindrical housing; two partition plates that are disposed in an inside of the housing so as to extend in a vertical direction of the housing, dividing the inside of the housing by being disposed in parallel to each other; | 12-12-2013 |
20130306299 | TEMPERATURE CONTROL SYSTEM - The temperature control system of the present invention is a temperature control system for recovering reaction heat inside a reactor in which an exothermic reaction takes place, thereby controlling a temperature inside the reactor. The temperature control system is provided with a coolant drum in which a liquid coolant is accommodated in a vapor-liquid equilibrium state, a heat removing unit which is disposed on the reactor to internally circulate the liquid coolant supplied from the coolant drum, a temperature determining unit which determines a temperature inside the reactor, and a pressure controller which controls pressure inside the coolant drum. The pressure controller controls the pressure inside the coolant drum based on a difference between an actual temperature inside the reactor determined by the temperature determining unit and a preset temperature value inside the reactor, thereby controlling the temperature of the liquid coolant inside the coolant drum. | 11-21-2013 |
20130305799 | ROLLING MILL ROLL-CLEANING DEVICE AND CLEANING METHOD - Generation of cavitation jet in air on a surface of a work roll provides a higher cleaning force than squirting of only high pressure fluid, so that sticking substances on the surface of the work roll are reliably removable. When a distance between a cleaning nozzle and the surface of the work roll and pressure of the high pressure fluid are controlled within a predetermined range, sticking substances are efficiently removable while roughness of the surface of the work roll is maintained. | 11-21-2013 |
20130272801 | STEEL PIPE PILE AND STEEL PIPE PILE IMPLEMENTATION METHOD - Since the distal backside is provided on a rear side of a wing edge in an entering direction, when a steel pipe pile is rotationally driven into the ground, the distal backside resists against the rotation moment with the wing edge at the center. Thus, while avoiding the off-centered movement of the steel pipe pile and ensuring linearity, the steel pipe pile can be penetrated into the ground. Further, since a slanted opening is provided at a front side of the wing edge in the entering direction, soil excavated in accordance with the rotational drive into the ground can be smoothly introduced into the steel pipe pile body through the slanted opening. Thus, while restraining the ground resistance in accordance with the entering, the soil introduced into the steel pipe pile body can be pushed upward, thereby reducing an increase in the penetration resistance caused by clogging within the pipe. | 10-17-2013 |
20130146088 | METHOD FOR WASHING REACTOR - The method for cleaning a reactor of the present invention comprises passing a solvent through a wax-fraction hydrocracking apparatus which is charged with a catalyst and to which supply of a wax fraction is stopped, wherein the solvent comprising at least one oil selected from a group consisting of hydrocarbon and vegetable oils, and having a sulfur content of less than 5 ppm and being in a liquid state at 15° C. | 06-13-2013 |
20130144099 | METHOD FOR PRODUCING HYDROCARBON OIL AND SYSTEM FOR PRODUCING HYDROCARBON OIL - Hydrocarbon oil obtained by Fischer-Tropsch (FT) synthesis reaction using a catalyst within a slurry bed reactor is fractionated into a distilled oil and a column bottom oil in a rectifying column, part of the column bottom oil is flowed into a first transfer line that connects a column bottom of the rectifying column to a hydrocracker, at least part of the column bottom oil is flowed into a second transfer line branched from the first transfer line and connected to the first transfer line downstream of the branching point, the amount of the catalyst fine powder to be captured is monitored while the catalyst fine powder in the column bottom oil that flows in the second transfer line are captured by a detachable filter provided in the second transfer line, and the column bottom oil is hydrocracked within the hydrocracker. | 06-06-2013 |
20130143971 | PROCESS FOR PRODUCING HYDROCARBON OIL AND SYSTEM FOR PRODUCING HYDROCARBON OIL - Hydrocarbon oil obtained by Fischer-Tropsch synthesis reaction using a slurry bed reactor holding a slurry of a liquid hydrocarbon in which a catalyst is suspended; the hydrocarbon oil is fractionated into a distilled oil and a column bottom oil containing the catalyst fine powder by a rectifying column; at least part of the column bottom oil is transferred to a storage tank, and the catalyst fine powder is sedimented to the bottom of the storage tank to capture the catalyst fine powder; a residue of the column bottom oil is transferred from the rectifying column to a hydrocracker, and/or the supernatant of the column bottom oil from which the catalyst fine powder is captured by the storage tank is transferred from the storage tank to the hydrocracker; and using the hydrocracker, the residue of the column bottom oil and/or the supernatant of the column bottom oil is hydrocracked. | 06-06-2013 |