Air Patents (Class 48/95)
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Patent number: 9314762Abstract: A novel reformer is provided. A gas fuel is guided from a fuel channel. Air and water are guided from a liquid/gas channel. They are mixed together in a mixing space. On mixing them, the temperature of the mixing space is between 150° C. and 300° C. Thus, the reactants are preheated and fully mixed; and a proper temperature is reached to avoid local over-heating and to prevent carbon deposited.Type: GrantFiled: April 24, 2013Date of Patent: April 19, 2016Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, Executive Yuan, R.O.C.Inventors: Yu Chao, Chin-Lee Chiu, Ching-Kuei Chen, Wen-Tang Hong
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Patent number: 9132402Abstract: Apparatus, systems, and processes for reforming hydrocarbons are provided. The process can include reforming a first hydrocarbon in the presence of steam and one or more first catalysts in a first reformer to produce a first reformed hydrocarbon. The process can also include reforming the first reformed hydrocarbon in the presence of one or more second catalysts in a second reformer to produce a second reformed hydrocarbon. The process can also include reforming a second hydrocarbon in the presence of steam and one or more third catalysts in a third reformer to produce a third reformed hydrocarbon, where heat from the second reformed hydrocarbon is transferred to the second hydrocarbon to support reforming of the second hydrocarbon.Type: GrantFiled: April 1, 2010Date of Patent: September 15, 2015Assignee: KELLOGG BROWN & ROOT LLCInventors: Shashi Prakash Singh, Arthur Joseph Price
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Patent number: 8404008Abstract: A system for reforming diesel fuel into hydrogen including feeds for water and diesel fuel, a supercritical water (SCW) reactor in fluid communication with the water feed and the diesel fuel, at least one pre-heater in thermal communication with the water feed, the diesel fuel feed that is configured to heat water from the water feed and diesel fuel from the diesel fuel feed to a predetermined temperature equal to or greater than the critical temperature of water before the water and the diesel fuel are mixed, a water-gas shift (WGS) reactor, and a hydrogen capturing system, where the SCW reactor reforms the diesel fuel into a synthesis gas comprising a mixture of hydrogen and carbon monoxide and outputs the synthesis gas, the synthesis gas output by the SCW reactor is fed into the WGS reactor which converts the carbon monoxide into carbon dioxide and hydrogen and outputs an output gas including a higher percentage of hydrogen to carbon monoxide compared to the synthesis gas, and the hydrogen in the output gaType: GrantFiled: July 28, 2011Date of Patent: March 26, 2013Assignee: DRS Sustainment Systems, Inc.Inventors: John R. Wootton, Sunggyu Lee, Asdrubal Garcia-Ortiz
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Patent number: 8388708Abstract: A process and device for the material utilization of soot from the waste water of a gasification appliance (heavy oil POX) in which a hydrogen- and carbon monoxide-containing (crude synthesis gas) is generated from relatively high-boiling hydrocarbons by partial oxidation, is disclosed. The soot-loaded waste water from the heavy oil POX is mixed with naphtha and is subsequently introduced into a separator (decanter) from which a substantially soot-free water fraction and a substantially water-free naphtha/soot mixture are taken off separately, where the naphtha/soot mixture is fed as feed to a further gasification appliance (naphtha POX), in which appliance predominantly naphtha is converted into a crude synthesis gas by partial oxidation.Type: GrantFiled: June 24, 2008Date of Patent: March 5, 2013Assignee: Linde AktiengesellschaftInventor: Juergen Glaser
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Patent number: 8375725Abstract: A process for the co-production of hydrogen and power through the integration of a hydrogen production unit and a power generation unit is provided. The hydrogen production unit comprises a gas heated reformer, a water gas shift reactor, and a hydrogen separator which produces a low-BTU hydrocarbon fuel stream and a purified hydrogen stream. The low-BTU hydrocarbon fuel stream, along with a compressed oxygen-containing stream extracted from the power generation unit, is combusted to provide heat to the reformer.Type: GrantFiled: March 14, 2008Date of Patent: February 19, 2013Assignee: Phillips 66 CompanyInventors: Arnold P. Keller, Subbaraman Viswanathan
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Patent number: 8372166Abstract: A controlled zone gasification reactor for a plasma assisted gasification reaction system is disclosed for converting fuel, such as, but not limited to, biomass, to syngas to replace petroleum based fuels used in power generation. The system may be a modular system housed within a frame facilitating relatively easy transportation. The system may include a reactor vessel with distinct reaction zones that facilitate greater control and a more efficient system. The system may include a syngas heater channeling syngas collected downstream of the carbon layer support and to the pyrolysis reaction zone. The system may also include a syngas separation chamber configured to produce clean syngas, thereby requiring less filtering. The system may further include an agitator drive assembly that prevents formation of burn channels with in the fuel.Type: GrantFiled: November 15, 2010Date of Patent: February 12, 2013Assignee: AdaptiveARC, Inc.Inventor: Christian H. A. Juvan
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Patent number: 8372167Abstract: A controlled zone gasification reactor with an agitator drive assembly for a plasma assisted gasification reaction system is disclosed for converting fuel, such as, but not limited to, biomass, to syngas to replace petroleum based fuels used in power generation. The agitator drive assembly that prevents formation of burn channels with in the fuel. The agitator drive assembly may include a syngas separation chamber configured to produce clean syngas, thereby requiring less filtering. The syngas separation chamber may feed syngas downstream to a syngas heater in a pyrolysis reaction zone in the reactor vessel.Type: GrantFiled: November 15, 2010Date of Patent: February 12, 2013Assignee: AdaptiveARC, Inc.Inventor: Christian H. A. Juvan
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Patent number: 8168131Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle.Type: GrantFiled: November 9, 2009Date of Patent: May 1, 2012Assignee: Kellog Brown & Root LLCInventors: Robert Stevens Burlingame, Lloyd Edward Cizmar, Larry Gene Hackemesser, Laura Beth Aguilar
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Patent number: 8152872Abstract: The thermal reformer system (1) is provided that compromises a planar assembly including a reformer zone (5), a combustion zone (6), and various inlet and outlet manifolds with associated fluid flow passages (11, 20). The reformer system further compromises an inlet combustion fluid flow passage (31) connecting an inlet combustion fluid manifold (30) and the combustion zone (6), and an outlet combustion fluid flow passage (41) connecting the combustion zone (6) and the outlet combustion fluid manifold (40). In the thermal reformer system the heat transfer and recuperation from outlet fluid flows is efficiently transferred to inlet fluid flows, in order to minimize heat loss and insulation requirements.Type: GrantFiled: March 9, 2005Date of Patent: April 10, 2012Assignee: Intelligent Energy, Inc.Inventors: Richard Root Woods, Brook F. Porter, Rahul Iyer, Leonard M. Weschta
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Patent number: 8038746Abstract: A system and process are disclosed for the controlled combustion of a wide variety of hydrocarbon feedstocks to produce thermal energy, liquid fuels, and other valuable products with little or no emissions. The hydrocarbon feeds, such as coal and biomass, are first gasified and then oxidized in a two-chamber system/process using pure oxygen rather than ambient air. A portion of the intermediate gases generated in the system/process are sent to a Fischer-Tropsch synthesis process for conversion into diesel fuel and other desired liquid hydrocarbons. The remaining intermediate gases are circulated and recycled through each of the gasification/oxidation chambers in order to maximize energy production. The energy produced through the system/process is used to generate steam and produce power through conventional steam turbine technology.Type: GrantFiled: May 5, 2008Date of Patent: October 18, 2011Inventor: Steve L. Clark
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Patent number: 8038743Abstract: A supercritical water reformer (SCWR) and methods for using supercritical water to convert hydrocarbons, particularly hydrocarbon fuels such as diesel fuel or gasoline, into carbonaceous gases and hydrogen. The synthesis gas stream generated by the fuel reforming reaction can then be further refined to increase hydrogen content, and the resultant hydrogen can be utilized to power fuel cells.Type: GrantFiled: November 26, 2003Date of Patent: October 18, 2011Assignee: DRS Sustainment Systems, Inc.Inventors: John R. Wootton, Sunggyu Lee, Asdrubal Garcia-Ortiz
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Patent number: 8038959Abstract: A reacting device includes a base plate, a first reaction unit provided on the base plate, a reaction material being supplied thereto, the first reaction unit being set at a first temperature, a reaction flow channel being formed such that the reaction material flows therein, the first reaction unit causing a reaction of the reaction material and at least one heating unit which sets the first reaction unit at the first temperature. The first reaction unit has a plurality of reactors that communicate with each other, and the heating unit is provided between the adjacent reactors.Type: GrantFiled: September 6, 2006Date of Patent: October 18, 2011Assignee: Casio Computer Co., Ltd.Inventors: Naotomo Miyamoto, Tadao Yamamoto, Masaharu Shioya
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Patent number: 8038744Abstract: A system and process for maximizing the generation of marketable products from a variety of hydrocarbon feedstocks. The hydrocarbon feedstocks are first gasified and then oxidized in a two-chamber system and process using oxygen gas rather than ambient air. Intermediate gases generated in the system and process are recirculated and recycled to the gasification and oxidation chambers in order to maximize both energy generation and the resulting stoichiometric reaction products. The energy produced through the system and process is used to generate steam and produce power through conventional steam turbine technology. In addition to the release of heat energy, the hydrocarbon feedstocks are oxidized to the pure product compounds of water and carbon dioxide. The carbon dioxide is subsequently purified and marketed. The water recovered from the system and process is collected and electrolyzed to generate oxygen and hydrogen gases.Type: GrantFiled: October 1, 2007Date of Patent: October 18, 2011Inventor: Steve L. Clark
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Patent number: 7972394Abstract: A method of operating a methanation reactor to reduce carbon monoxide concentration in a reformate stream in a fuel cell reformer. The reactor includes a flowpath with a noble metal catalyst supported by a ceramic support such that the reactor preferentially converts carbon monoxide via methanation over that of carbon dioxide. The reduced level of carbon monoxide present in the reformate stream after passing through the methanation reactor reduces the likelihood of poisoning of the catalyst used on the fuel cell anode.Type: GrantFiled: August 11, 2006Date of Patent: July 5, 2011Assignee: GM Global Technology Operations LLCInventors: Mark Robert Feaviour, Julia Margaret Rowe
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Patent number: 7931708Abstract: A reformer burner that includes a fuel supply tube through which a fuel is supplied and a fuel supply chamber that surrounds the fuel supply tube and has a plurality of atomizing holes to atomize a fuel into a combustion chamber of a reformer.Type: GrantFiled: February 7, 2007Date of Patent: April 26, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Dong-woo Lee, Tae-sang Park
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Patent number: 7833296Abstract: A system and process for maximizing the generation of electrical power from a variety of hydrocarbon feedstocks. The hydrocarbon feedstocks are first gasified and then oxidized in a two-chamber system and process using oxygen gas rather than ambient air. Intermediate gases generated in the system and process are recirculated and recycled to the gasification and oxidation chambers in order to maximize energy production. The energy produced through the system and process is used to generate steam and produce power through conventional steam turbine technology. In addition to the release of heat energy, the hydrocarbon feedstocks are oxidized to the pure product compounds of water and carbon dioxide, which are subsequently purified and marketed. The system and process minimizes environmental emissions.Type: GrantFiled: October 1, 2007Date of Patent: November 16, 2010Inventor: Steve L. Clark
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Patent number: 7780749Abstract: Disclosed herein are unmixed fuel processors and methods for using the same. In one embodiment, an unmixed fuel processor comprises: an oxidation reactor comprising an oxidation portion and a gasifier, a CO2 acceptor reactor, and a regeneration reactor. The oxidation portion comprises an air inlet, effluent outlet, and an oxygen transfer material. The gasifier comprises a solid hydrocarbon fuel inlet, a solids outlet, and a syngas outlet. The CO2 acceptor reactor comprises a water inlet, a hydrogen outlet, and a CO2 sorbent, and is configured to receive syngas from the gasifier. The regeneration reactor comprises a water inlet and a CO2 stream outlet. The regeneration reactor is configured to receive spent CO2 adsorption material from the gasification reactor and to return regenerated CO2 adsorption material to the gasification reactor, and configured to receive oxidized oxygen transfer material from the oxidation reactor and to return reduced oxygen transfer material to the oxidation reactor.Type: GrantFiled: December 11, 2006Date of Patent: August 24, 2010Assignee: General Electric CompanyInventors: Parag Prakash Kulkarni, Zhe Cui
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Patent number: 7753971Abstract: Two types of cells (first cells and second cells) are used to constitute a honeycomb structure. The first cells and second cells differ in the catalyst supporting position. The first cells and second cells are alternately arranged. The catalyst supporting position of the second cells is shifted in the direction of the downstream side of the flow of an air-fuel mixture from the catalyst supporting position of the first cells so that when an exothermic reaction occurs on the second cell side of a partition wall for separating a first cell from a second cell, an endothermic reaction occurs on the opposing first cell side of the partition wall.Type: GrantFiled: February 15, 2006Date of Patent: July 13, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Sakurai, Kazuhiro Wakao
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Patent number: 7736402Abstract: A biomass gasifier includes a wall structure defining a gasification chamber having a biomass inlet at an upper end thereof and a char outlet at a lower end. A generally U-shaped char tube has a base and first and second substantially vertical limbs. The first limb of the char tube is positioned to receive char from the char outlet of the gasification chamber and the second limb terminates upwardly at a level above the char outlet of the gasification chamber. A blower has a suction side connected to the second limb of the char tube for inducing a flow of gas through the gasification chamber and the char tube and also has a pressure side for connection to a consuming device.Type: GrantFiled: July 9, 2007Date of Patent: June 15, 2010Inventor: William G. Crorey, Jr.
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Patent number: 7730616Abstract: A method of cooling syngas in a gasifier is provided. The method includes channeling cooling fluid through at least one tube-bundle that includes at least three tubes coupled together within a radiant syngas cooler and extends through a reaction zone of the gasifier, and circulating reactant fluid around the at least one tube-bundle to facilitate transferring heat from the reactant fluid to the cooling fluid.Type: GrantFiled: November 12, 2009Date of Patent: June 8, 2010Assignee: General Electric CompanyInventors: George Albert Goller, Daniel Anthony Nowak
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Patent number: 7682597Abstract: The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow (8) by gas washing (7), and the washed hydrogen-rich gas flow (10) is subsequently divided in a pressure-swing adsorption system (11) into a product gas flow (12) made of hydrogen and a waste gas flow (13). The waste gas flow (13) is introduced with hydrogen (14), which is separated from the gas flow (10) after gas washing, into a reformer (4) which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out the method.Type: GrantFiled: July 24, 2004Date of Patent: March 23, 2010Assignee: Uhde GmbHInventors: Michael Blumenfeld, Vincent Liu, Bernd Mielke, Marcus Michel
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Patent number: 7670574Abstract: A method of cooling syngas in a gasifier is provided. The method includes channeling cooling fluid through at least one tube-bundle that includes at least three tubes coupled together within a radiant syngas cooler and extends through a reaction zone of the gasifier, and circulating reactant fluid around the at least one tube-bundle to facilitate transferring heat from the reactant fluid to the cooling fluid.Type: GrantFiled: January 19, 2007Date of Patent: March 2, 2010Assignee: General Electric CompanyInventors: George Albert Goller, Daniel Anthony Nowak
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Patent number: 7621973Abstract: Methods and systems for a gasifier having a partial moderator bypass are provided. The gasifier includes a partial oxidation reactor including an inlet and an outlet and a primary reaction zone extending therebetween, the partial oxidation reactor configured to direct a flow of products of partial oxidation including fuel gases, gaseous byproducts of partial oxidation, and unburned carbon, and a secondary reaction chamber coupled in flow communication with the partial oxidation reactor, the secondary reaction chamber is configured to mix a flow of moderator with the flow of gaseous byproducts of partial oxidation and unburned carbon such that a concentration of fuel gases is increased.Type: GrantFiled: December 15, 2005Date of Patent: November 24, 2009Assignee: General Electric CompanyInventor: Paul Steven Wallace
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Patent number: 7569085Abstract: A system for production of hydrogen comprises at least one steam reforming zone configured to receive a first fuel and steam to produce a first reformate gas stream comprising hydrogen using a steam reforming process. The system further comprises a mixed reforming zone configured to receive an oxidant to produce a second reformate gas stream comprising hydrogen, wherein the first reformate gas stream is sent to the mixed reforming zone to complete the reforming process.Type: GrantFiled: December 27, 2004Date of Patent: August 4, 2009Assignee: General Electric CompanyInventors: Ravi Vipperia Kumar, Vladimir Zamansky, Boris Nikolaevich Eiteneer, Shawn David Barge, Parag Prakash Kulkarni, Ke Liu
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Patent number: 7500998Abstract: A gas mixture containing a fuel, water and air is supplied to one end of a reforming room, and a reformed gas containing hydrogen is discharged from the other end thereof. Two or more such reforming units are connected in series, and the upstream part of each reforming room is filled with a first catalyst which catalyzes a partial oxidation reaction in an oxygen-rich environment, and the downstream part is filled with a second catalyst which performs the reforming reaction. The gas mixture which has been heated in a heating unit passes through a distribution tube and is distributed evenly to the reforming units. The reforming room is composed of a reforming tube in which a reforming catalyst is charged, or two or more such reforming tubes, parallel to each other. After being reformed the high-temperature reformed gas is passed around the reforming tubes, and fed back to a manifold.Type: GrantFiled: February 13, 2004Date of Patent: March 10, 2009Assignee: IHI Corp.Inventors: Hideaki Komaki, Kunio Matsui
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Patent number: 7445649Abstract: A gasifier 10 includes a first chemical process loop 12 having an exothermic oxidizer reactor 14 and an endothermic reducer reactor 16. CaS is oxidized in air in the oxidizer reactor 14 to form hot CaSO4 which is discharged to the reducer reactor 16. Hot CaSO4 and carbonaceous fuel received in the reducer reactor 16 undergo an endothermic reaction utilizing the heat content of the CaSO4, the carbonaceous fuel stripping the oxygen from the CaSO4 to form CaS and a CO rich syngas. The CaS is discharged to the oxidizer reactor 14 and the syngas is discharged to a second chemical process loop 52. The second chemical process loop 52 has a water-gas shift reactor 54 and a calciner 42. The CO of the syngas reacts with gaseous H2O in the shift reactor 54 to produce H2 and CO2. The CO2 is captured by CaO to form hot CaCO3 in an exothermic reaction.Type: GrantFiled: June 7, 2006Date of Patent: November 4, 2008Assignee: ALSTOM Technology LtdInventors: Herbert E. Andrus, Jr., Michael S. McCartney
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Patent number: 7399329Abstract: A process for the production of a synthesis gas from a light hydrocarbon feed, steam and an oxygen-containing stream is provided in which the feed components are mixed to form a feed mixture. The process provides an inert disengaging zone separating the mixing zone from an active catalyst zone.Type: GrantFiled: August 23, 2004Date of Patent: July 15, 2008Assignee: Syntroleum CorporationInventor: Kym Arcuri
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Publication number: 20080127553Abstract: A method and a system for the vaporization of a liquid fuel is provided and includes providing a supply of a liquid fuel and an oxidant, atomizing the liquid fuel and mixing it with the oxidant, vaporizing the fuel in thermal radiation, catalytically reacting the fuel oxidant mixture, and providing an ignition source for initiating the catalytic reaction. A hydrocarbon fuel can be mixed with oxygen, as a constituent of air, preferably forming a fuel rich fuel air mixture that passes through a catalytic reactor having an ultra-short channel length metal monolith substrate. The fuel air mixture is vaporized and partially oxidized.Type: ApplicationFiled: October 16, 2007Publication date: June 5, 2008Inventors: Subir Roychoudhury, Maxim Lyubovsky, Jonathan Berry
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Patent number: 7361199Abstract: An apparatus removes CO from a hydrogen-rich gas stream in a hydrogen fuel cell system. CO fouls costly catalytic particles in the membrane electrode assemblies. Both a catalyst adapted to perform a water gas shift reaction, and a carbon dioxide adsorbent are disposed in a rotating pressure swing adsorber housing. The adsorption of carbon dioxide shifts equilibrium toward carbon monoxide consumption. A second adsorbent may be disposed in the housing for adsorbing carbon monoxide at low temperatures, and is adapted to desorb carbon monoxide at high temperatures. The present invention advantageously eliminates a unit operation from a space-constrained fuel cell vehicle by combining the WGS catalyst and a CO2 adsorbent in a single reactor/housing. The apparatus further eliminates the use of a PROX reactor, by providing an apparatus which incorporates CO2 adsorption and consequent carbon monoxide consumption in the place of the PROX reactor.Type: GrantFiled: January 7, 2004Date of Patent: April 22, 2008Assignee: General Motors CorporationInventors: Craig S Gittleman, Ramesh Gupta
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Fuel processor module for hydrogen production for a fuel cell engine using pressure swing adsorption
Patent number: 7276095Abstract: A stand-alone fuel processor (10) for producing hydrogen from a hydrocarbon fuel for a fuel cell engine in a vehicle. The fuel processor (10) includes a primary reactor (14) that dissociates hydrogen and other by-products from the hydrocarbon fuel as a reformate gas. The reformate gas is applied to a WGS reactor (48) to convert carbon monoxide and water to hydrogen and carbon dioxide. The WGS reactor (14) may include an adsorbent for adsorbing carbon monoxide. The reformate gas from the WGS reactor (48) is then sent to a rapid-cycle PSA device (12) for adsorbing the undesirable by-products in the gas and generates a stream of pure hydrogen. A liquid water separator (70) separates water from the reformate gas before it is applied to the PSA device (12). The PSA device (12) uses a portion of the separated hydrogen as a desorbing gas to purify the adsorbent in the PSA device (12). The by-products of the reformate gas can be used as a fuel in a combustor (30) that generates heat for the primary reactor (14).Type: GrantFiled: March 14, 2003Date of Patent: October 2, 2007Assignee: General Motors CorporationInventors: Craig S. Gittleman, John B. Ruhl, Yan Zhang, William H. Pettit -
Patent number: 7128768Abstract: A hydrogen-rich reformate gas generator (36), such as a mini-CPO, POX, ATR or other hydrogen generator provides warm, dry, hydrogen-rich reformate gas to a hydrogen desulfurizer (17) which provides desulfurized feedstock gas to a major reformer (14) (such as a CPO) which, after processing in a water-gas shift reactor (26) and preferential CO oxidizer (27) produces hydrogen-containing reformate in a line (31) for use, for instance, as fuel for a fuel cell power plant. The expensive prior art hydrogen blower (30) is thereby eliminated, thus reducing parasitic power losses in the power plant. The drier reformate provided by the small hydrogen generator to the hydrogen desulfurizer favors hydrogen sulfide adsorption on zinc oxide and helps to reduce sulfur to the parts per billion level.Type: GrantFiled: December 9, 2003Date of Patent: October 31, 2006Assignee: UTC Fuel Cells, LLCInventors: Ke Liu, Richard J. Bellows, John L. Preston, Jr.
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Patent number: 7097676Abstract: A process and a device are provided for producing hydrogen gas from water and carbon. The process includes introducing steam and powdered carbon in stoichiometric ratio of carbon to water into a preheated oxidization chamber in such a way that a gas plasma is produced in which the steam is decomposed into its hydrogen and oxygen gas components and oxygen is combined with carbon to form carbon dioxide gas in an exothermic reaction at temperatures above 2000° C., and separating the carbon dioxide gas from the hydrogen gas. The device for conducting this process has an oxidization chamber defined in a hollow body and being provided with a preheater and having at least one inlet port for introducing steam into the oxidization chamber, at least one inlet port for introducing powdered carbon into the oxidization chamber, and at least one exit port for carrying off generated hydrogen gas and/or generated carbon dioxide gas from the oxidization chamber.Type: GrantFiled: December 6, 2004Date of Patent: August 29, 2006Inventors: Norman Wootan, Kenneth Hawkins
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Patent number: 6998096Abstract: A reformer for a solid state polymer electrolyte fuel cell includes a burner 1 forming a flame, a reforming portion 2 surrounding the burner and having an exhaust port 22 and exhausting a reformed gas from the exhaust port 22; and a heat exchanger 4 having a higher temperature side, the higher temperature side being connected directly with the exhaust port 22 of the reforming portion 2, the heat exchanger 4 establishing heat exchange between the reformed gas and a raw material gas.Type: GrantFiled: March 15, 2002Date of Patent: February 14, 2006Assignee: Aisin Seiki Kabushiki KaishaInventor: Takashi Ishikawa
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Patent number: 6986797Abstract: An auxiliary reactor for use with a reformer reactor having at least one reaction zone, and including a burner for burning fuel and creating a heated auxiliary reactor gas stream, and heat exchanger for transferring heat from auxiliary reactor gas stream and heat transfer medium, preferably two-phase water, to reformer reaction zone. Auxiliary reactor may include first cylindrical wall defining a chamber for burning fuel and creating a heated auxiliary reactor gas stream, the chamber having an inlet end, an outlet end, a second cylindrical wall surrounding first wall and a second annular chamber there between. The reactor being configured so heated auxiliary reactor gas flows out the outlet end and into and through second annular chamber and conduit which is disposed in second annular chamber, the conduit adapted to carry heat transfer medium and being connectable to reformer reaction zone for additional heat exchange.Type: GrantFiled: May 2, 2000Date of Patent: January 17, 2006Assignee: Nuvera Fuel Cells Inc.Inventors: Lawrence G. Clawson, Matthew H. Dorson, William L. Mitchell, Brian J. Nowicki, Jeffrey M. Bentley, Robert Davis, Jennifer W. Rumsey
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Patent number: 6964692Abstract: An apparatus removes carbon monoxide (CO) from a hydrogen-rich gas stream in a hydrogen fuel cell system. CO fouls costly catalytic particles in the membrane electrode assemblies of proton exchange membrane (PEM) fuel cells. A vessel houses a carbon monoxide adsorbent. The vessel may be a rotating pressure swing adsorber. A water gas shift reactor is upstream of the rotating pressure swing adsorber. The water gas shift reactor may include a second adsorbent adapted to adsorb carbon monoxide at low temperatures and to desorb carbon monoxide at high temperatures. The apparatus advantageously eliminates the use of a preferential oxidation (PROX) reactor, by providing an apparatus which incorporates CO adsorption in the place of the PROX reactor. This cleans up carbon monoxide without hydrogen consumption and the concomitant, undesirable excess low grade heat generation. The present invention reduces start-up duration, and improves overall fuel processor efficiency during normal operation.Type: GrantFiled: February 9, 2001Date of Patent: November 15, 2005Assignee: General Motors CorporationInventors: Craig S. Gittleman, William H. Pettit, Gerald E. Voecks
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Patent number: 6852215Abstract: A method for upgrading a hydrocarbon in which an oxygen source and a hydrogen source are ignited and the resulting synthetic gas is used to initiate a predominantly gas phase heavy oil upgrade reaction. The upgrade reaction is quenched with an additional source of un-upgraded hydrocarbon.Type: GrantFiled: April 18, 2002Date of Patent: February 8, 2005Assignee: ExxonMobil Upstream Research CompanyInventors: Michael Y. Wen, Eric D. Nelson
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Publication number: 20040255514Abstract: In a reforming reactor (31), a partial oxidation reaction is performed between a hydrocarbon fuel and air, and in a mixer (32), water is injected into hot gas heated by the partial oxidation reaction to vaporize the water, and the vaporized water is mixed with the hot gas. In a shift reactor (33), the vaporized water is made to undergo a shift reaction with the hot gas. In this way, a device for promoting vaporization of the water or a complex fuel injection device is not required.Type: ApplicationFiled: May 6, 2003Publication date: December 23, 2004Inventors: Akihiro Sakakida, Mikiya Shinohara, Tadashi Shoji, Shiro Tanaka
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Publication number: 20040250472Abstract: A fuel gas production apparatus includes a vaporization mechanism, a reforming mechanism, a PSA mechanism, a supply passage, a combustion air supply mechanism and an ECU. The vaporization mechanism has a combustion catalyst for vaporizing a fuel. The reforming mechanism reforms the vaporized fuel to obtain a reformed gas. The PSA mechanism refines the reformed gas by removing impurities to produce a fuel gas. The impurities removed by the PSA mechanism are continuously supplied as a heat source fuel to the vaporization mechanism through the supply passage. The combustion air supply mechanism supplies combustion air to the vaporization mechanism. The ECU controls the amount of the combustion air supplied to the vaporization mechanism synchronously with the change in the amount of heat energy of the impurities supplied to the vaporization mechanism.Type: ApplicationFiled: June 16, 2004Publication date: December 16, 2004Applicant: Honda Motor Co., Ltd.Inventors: Hiraku Okada, Hiroshi Machida, Nobuyoshi Yoshida
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Patent number: 6830596Abstract: This invention is directed to a heat exchanged membrane reactor for electric power generation. More specifically, the invention comprises a membrane reactor system that employs catalytic or thermal steam reforming and a water gas shift reaction on one side of the membrane, and hydrogen combustion on the other side of the membrane. Heat of combustion is exchanged through the membrane to heat the hydrocarbon fuel and provide heat for the reforming reaction. In one embodiment, the hydrogen is combusted with compressed air to power a turbine to produce electricity. A carbon dioxide product stream is produced in inherently separated form and at pressure to facilitate injection of the CO2 into a well for the purpose of sequestering carbon from the earth's atmosphere.Type: GrantFiled: June 29, 2000Date of Patent: December 14, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Harry W. Deckman, John W. Fulton, Jeffrey M. Grenda, Frank Hershkowitz
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Publication number: 20040244290Abstract: A chemical reactor includes a first reaction section which has a first flow path and causes a first reaction in the first flow path. A heating section heats the first reaction section. A second reaction section has a second flow path and causes a second reaction in the second flow path by heat of the heating section transmitted via the first reaction section.Type: ApplicationFiled: June 23, 2004Publication date: December 9, 2004Inventors: Tadao Yamamoto, Masaharu Shioya
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Patent number: 6827751Abstract: An apparatus which is capable of supporting a process for gasifying a variety of hydrocarbon-containing materials. The resulting hydrogen-containing gas is suitable for use in various combustion processes and for petrochemical processes. A hydrocarbon-containing material is mixed with natural gas (or other suitable hydrocarbon gas) under pressure. The suspended material and gas are then injected under pressure into an acceleration/gasification tube. Intense heat (provided by an external energy source) is applied to the mixture as it travels through this tube, resulting in the cracking of the hydrocarbon chains and the release of additional energy. The released bond energy, along with the addition of the external energy, rapidly expands the gas and causes the velocity of the moving mixture to rise sharply as it proceeds down the tube. The acceleration/gasification tube is connected to a diffuser, which is essentially an expansion nozzle with a series of heat exchangers to cool the rapidly expanding gas.Type: GrantFiled: October 28, 2003Date of Patent: December 7, 2004Inventors: Thomas W. Kaufman, Verner Christensen
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Patent number: 6790247Abstract: An apparatus for carrying out a multi-step process of converting hydrocarbon fuel to a substantially pure hydrogen gas feed includes a plurality of reaction zones arranged in an insulated, box-shaped, compact fuel processor. The multi-step process includes preheating the hydrocarbon fuel utilizing integration with the inherent exothermic processes utilized with the fuel processor, reacting the preheated hydrocarbon fuel to form the hydrogen rich gas, and purifying the hydrogen rich gas to produce a gas that is suitable for consumption in a fuel cell.Type: GrantFiled: April 26, 2002Date of Patent: September 14, 2004Assignee: Texaco Inc.Inventors: Robert Childress, John R. Farrell, Wendell B. Leimbach, James W. Marshall
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Publication number: 20040163311Abstract: A method of producing a H2 rich gas stream includes supplying an O2 rich gas, steam, and fuel to an inner reforming zone of a fuel processor that includes a partial oxidation catalyst and a steam reforming catalyst or a combined partial oxidation and stream reforming catalyst. The method also includes contacting the O2 rich gas, steam, and fuel with the partial oxidation catalyst and the steam reforming catalyst or the combined partial oxidation and stream reforming catalyst in the inner reforming zone to generate a hot reformate stream. The method still further includes cooling the hot reformate stream in a cooling zone to produce a cooled reformate stream. Additionally, the method includes removing sulfur-containing compounds from the cooled reformate stream by contacting the cooled reformate stream with a sulfur removal agent.Type: ApplicationFiled: February 27, 2004Publication date: August 26, 2004Inventors: Shabbir Ahmed, Sheldon H. D. Lee, John David Carter, Michael Krumpelt, Deborah J. Myers
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Publication number: 20040163313Abstract: A hydrogen generation apparatus includes controls for delivering a feedstock to a reactor and a water gas step membrane reactor operating at a lower temperature than the reactor so as to efficiently produce purified hydrogen and manage heat within the apparatus. Catalytic combustion of feedstock in the presence of a combustible gas based on a computer controller facilitates operation. Flat plate heat exchangers in various configurations are contemplated as a reactor, water gas step membrane reactor, and purifier. Catalytic burning of feedstock in the presence of a combustible gas enhances apparatus efficiency.Type: ApplicationFiled: February 20, 2004Publication date: August 26, 2004Inventor: Robert E. Buxbaum
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Publication number: 20040159584Abstract: A hydrogen-rich reformate gas generator, such as a mini-CPO (catalytic partial oxidizer) (36), provides warm, dry, hydrogen-containing reformate gas to a hydrogen desulfurizer (17) which provides desulfurized reformate gas to a major reformer (14) (such as a CPO) which, after processing in a water-gas shift reactor (26) and preferential CO oxidizer (27) produces hydrogen-containing reformate in a line (31) for use, for instance, as fuel for a fuel cell power plant. The expensive prior art hydrogen blower (30) is thereby eliminated, thus reducing parasitic power losses in the power plant. The drier reformate provided by the mini-CPO to the hydrogen desulfurizer favors hydrogen sulfide adsorption on zinc oxide and helps to reduce sulfur to the parts per billion level.Type: ApplicationFiled: February 18, 2003Publication date: August 19, 2004Inventors: Ke Liu, Richard J. Bellows, John L. Preston
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Publication number: 20040148862Abstract: A heat exchanger (60) for a fuel processing system (10) that produces a hydrogen reformate gas. The heat exchanger (60) includes a catalyst for converting carbon monoxide to carbon dioxide. The heat exchanger (60) can be any suitable heat exchanger, such as a tube and fin type heat exchanger, that is able to cool the reformate gas and includes a suitable surface on which the catalyst can be coated. In one embodiment, the heat exchanger (60) is part of a WGS reactor assembly (48). The WGS reactor assembly (48) includes a first stage WGS adiabatic reactor (52) followed by the catalyzed heat exchanger (60) and a second stage WGS adiabatic reactor (68). Also, in one embodiment, both the first stage and the second stage WGS reactors (52, 68) are medium temperature reactors. By catalyzing the heat exchanger (60) in the WGS reactor assembly (48), the assembly (48) can be smaller than what is currently known in the art.Type: ApplicationFiled: September 17, 2003Publication date: August 5, 2004Inventors: Paul Taichiang Yu, Steven D. Burch, John C. Fagley, Annette M. Brenner, Reena L. Datta
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Publication number: 20040144030Abstract: A partial oxidation fuel reformer in includes a torch assembly for generating a near-stoichiometric flame through which a relatively rich “primary” air/fuel mixture is advanced. The torch assembly includes a low-energy ignition source such as a conventional sparkplug. The flame has sufficient energy to ignite the primary mixture to facilitate a partial oxidation reaction. A method of operating a partial oxidation fuel reformer is also disclosed.Type: ApplicationFiled: January 23, 2003Publication date: July 29, 2004Inventor: Rudolf M. Smaling
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Publication number: 20040134126Abstract: The invention relates to the method and device for plasmacatalytic conversion of liquid hydrocarbons, such as engine fuels, into a synthesis gas by employing a pulse-periodic pseudocorona streamer microwave discharge (or semi-continuous microwave discharge) in the presence of air, and in certain cases, water.Type: ApplicationFiled: October 27, 2003Publication date: July 15, 2004Inventors: Ricardo Blach Vizoso, Boris-Vasilievich Potapkin, Victor-Konstantinovi Zhivotov, Vladimir-Dmitrievich Rusanov, Aleksandr-Ivanovich Babaristky, Marsim-Alksandrovic Deminsky, Michael-Fedorovich Krotov, Vladimir Nikolaeevic Fateev
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Publication number: 20040093797Abstract: A reactor vessel for the catalytic reforming of air and steam-fuel mix into a hydrogen rich output gas is designed to relevant pressure code requirements. The steam-fuel mix and/or air provided to the vessel may be internally pre-heated prior to contacting the catalyst. Reformate is selectively directed into a recuperator to accomplish such heating. A bypass valve to divert reformate around the recuperator is also provided to allow control of the reaction conditions. Notably, this control may be performed manually or by way of an automated system. The resulting vessel enhances the safety and performance of the vessel, and it is more easily integrated into a complete fuel processor system. A method for achieving these goals is also described.Type: ApplicationFiled: November 15, 2002Publication date: May 20, 2004Inventors: Billy E. Bingham, Ray L. Sullivan, Stephen W. Scoles, Mark A. Perna, Andrew F. Kisik
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Patent number: 6733552Abstract: A hydrogen generating apparatus having a fuel feeding part, a water feeding part for fuel reforming, an oxidant gas feeding part, a reforming catalyst body, a heating part for the reforming catalyst, a CO shifting catalyst body and a CO purification catalyst body is provided wherein the reforming catalyst body, the CO shifting catalyst body and the CO purification catalyst body are sequentially ordered from the fuel feeding part toward the downstream side, and wherein a shifting catalyst of the shifting catalyst body contains as one component at least a platinum group-type catalyst.Type: GrantFiled: March 13, 2000Date of Patent: May 11, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Taguchi, Takeshi Tomizawa, Kunihiro Ukai, Toshiyuki Shono, Kouichiro Kitagawa