Utilizing Solid Sorbent, Catalyst, Or Reactant Patents (Class 423/247)
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Patent number: 7691775Abstract: A catalyst is disclosed herein. The catalyst includes a reducible oxide support and at least one noble metal fixed on the reducible oxide support. The noble metal(s) is loaded on the support at a substantially constant temperature and pH.Type: GrantFiled: May 4, 2007Date of Patent: April 6, 2010Assignee: The Regents of The University of MichiganInventors: Levi T. Thompson, Chang Hwan Kim, Shyamal K. Bej
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Patent number: 7687049Abstract: One exemplary embodiment can be a process for lowering an amount of carbon monoxide in a stream rich in hydrogen. The process can include passing the stream rich in hydrogen through a carbon monoxide removal zone to produce a product stream having no more than about 10 vppm carbon monoxide and communicating the product stream to a reduction zone receiving a catalyst comprising unreduced metal species.Type: GrantFiled: July 22, 2008Date of Patent: March 30, 2010Assignee: UOP LLCInventors: Mark P. Lapinski, Richard R. Rosin
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Patent number: 7674445Abstract: A hydrogen purifying apparatus and method are provided for oxidizing and removing carbon monoxide (CO) in a modified gas containing CO in addition to a main component hydrogen gas. The apparatus and method use comprises a catalyst reaction segment having a catalyst layer for oxidizing CO, a material gas supplying segment for supplying the modified gas to the reaction segment via a material gas supply pathway, and an oxidant gas supplying segment for supplying an oxidant gas on the path of the material gas supply pathway. Preferably, the apparatus further comprises means for cooling the catalyst layer at the upstream side and means for heating the catalyst layer at the downstream side.Type: GrantFiled: July 6, 2006Date of Patent: March 9, 2010Assignee: Panasonic CorporationInventors: Kiyoshi Taguchi, Takeshi Tomizawa, Kunihiro Ukai, Kimiyasu Honda, Toshiyuki Shono, Kouchiro Kitagawa
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Patent number: 7666377Abstract: The present invention discloses a method for removing carbon monoxide (CO) from a gas mixture containing CO including contacting the gas mixture with a nano-gold catalyst to reduce the CO content in the gas mixture by CO selective adsorption/oxidation, water gas shift reaction or CO selective oxidation reaction. The nano-gold catalyst includes a solid support and gold deposited on the support, wherein the deposited gold has a size less than 10 nm, and the support is a mixed metal hydroxide and oxide having the following formula: M(OH)qOy Wherein M is Ti, Fe, Co, Zr, or Ni; q is 0.1-1.5; and q+2y=z, wherein z is the valence of M.Type: GrantFiled: May 27, 2005Date of Patent: February 23, 2010Assignee: Industrial Technology Research InstituteInventors: Kuo-Ching Wu, Ching-Tang Lin, Chu-Chang Dai
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Publication number: 20100034718Abstract: A combination of moving bed regeneration technology and CO oxidation technology is used in a novel moving bed regeneration apparatus containing an integral CO oxidation zone to solve the problem of regenerating a coke-containing catalyst that does not contain a CO oxidation promoter without generating an effluent flue gas stream containing hazardous and undesired amounts of CO. The CO oxidation zone is located in the flue gas collection zone within the moving bed regeneration apparatus and functions autogenously to eliminate the CO hazard by oxidizing CO to CO2 with a portion of the unreacted oxygen withdrawn from the coke combustion zone of the moving bed regeneration apparatus.Type: ApplicationFiled: October 16, 2009Publication date: February 11, 2010Applicant: UOP LLCInventor: John J. Senetar
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Patent number: 7655201Abstract: Methods and devices for removing inflammable gases produced by radiolysis in a closed chamber containing radioactive matters comprising organic compounds and possibly water, or radioactive matters in the presence of organic compounds and possibly water. Inside the chamber there may be placed a catalyst of at least one reaction for oxidizing the inflammable gases by oxygen contained in the chamber atmosphere, supported by an inert solid support; a catalyst of at least the reaction for oxidizing CO to CO2; possibly an oxygen source; and possibly a hygroscopic microporous inert solid support. Also, chambers for radioactive matters containing such devices.Type: GrantFiled: August 4, 2005Date of Patent: February 2, 2010Assignee: TN InternationalInventors: Pascale Abadie, Hervé Issard
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Publication number: 20100018906Abstract: One exemplary embodiment can be a process for lowering an amount of carbon monoxide in a stream rich in hydrogen. The process can include passing the stream rich in hydrogen through a carbon monoxide removal zone to produce a product stream having no more than about 10 vppm carbon monoxide and communicating the product stream to a reduction zone receiving a catalyst comprising unreduced metal species.Type: ApplicationFiled: July 22, 2008Publication date: January 28, 2010Inventors: Mark P. Lapinski, Richard R. Rosin
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Publication number: 20100015023Abstract: The invention provides a catalyst for carbon monoxide conversion, comprising from 10 to 90% by mass of a copper oxide ingredient, from 5 to 50% by mass of a zinc oxide ingredient and from 10 to 50% by mass of an aluminum oxide ingredient, and having a specific surface area of from 100 to 300 m2/g, a carbon monoxide adsorption of from 20 to 80 ?mol/g, and a copper oxide crystallite diameter of at most 200 angstroms, as a catalyst suitable for carbon monoxide conversion for fully reducing carbon monoxide in the hydrogen gas obtained through reforming of a starting hydrocarbon material, for the purpose of enabling stable long-term operation of a fuel cell which uses hydrogen gas as a fuel and which is frequently and repeatedly started and stopped.Type: ApplicationFiled: October 10, 2007Publication date: January 21, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kozo Takatsu, Yoshimi Kawashima, Satoshi Nakai, Takashi Umeki
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Publication number: 20100008840Abstract: The present invention relates to a novel method for preparing a new type of catalyst for the oxidation of CO in a reactant gas or air. The method provides the preparation of a catalyst having nano-sized metal particles and a capping agent deposited on a solid support. The size and distribution of the metal particles can be easily controlled by adjusting reaction condition and the capping agent used. The catalyst prepared has high activity at low temperature toward selective oxidation of CO and is stable over an extended period of time. The catalyst can be used in air filter devices, hydrogen purification processes, automotive emission control devices (decomposition of NOx, x is the integer 1 or 2), F-T synthesis, preparation of fuel-cell electrode, photocatalysis and sensors.Type: ApplicationFiled: November 13, 2006Publication date: January 14, 2010Applicant: Agency For Science, Technology and ResearchInventors: Ziyi Zhong, Jianyi Lin
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Publication number: 20100008837Abstract: The present invention relates to a metal ionic catalyst composition for the catalytic conversion of industrial pollutants and the process of preparation of the same. The present invention also relates to a process of coating of the said catalyst composition on a cordierite honeycomb.Type: ApplicationFiled: March 23, 2007Publication date: January 14, 2010Applicant: Indian Institute of ScienceInventors: Subraya Manjanath Hegde, Chikkorao Kashinath Patil, Sudhanshu Sharma
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Patent number: 7645431Abstract: Processes for the recovery and purification of noble gas stream contaminated with small amounts of hydrogen and/or other getter combustibles. One process involves dividing the noble gas stream gas into a first and second noble gas streams. The first noble gas stream is sent to a second metal getter containing a bed comprised of a metal getter in an oxidized state wherein the hydrogen is combusted. Oxygen is added to the second noble gas stream and the stream is passed through a catalytic unit wherein the hydrogen is combusted and then through a first metal getter bed operating in parallel with a second bed wherein the metal getter is converted to its oxide form. When breakthrough is detected in either bed, the flows of the first and second noble gas streams are rerouted to the other beds, respectively.Type: GrantFiled: October 23, 2007Date of Patent: January 12, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Annemarie Ott Weist, Shyam Ramchand Suchdeo, Jake Fotopoulos
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Patent number: 7641875Abstract: A multi-phase catalyst for the simultaneous conversion of oxides of nitrogen, carbon monoxide, and hydrocarbons is provided. A catalyst composition comprising the multi-phase catalyst and methods of making the catalyst composition are also provided. The multi-phase catalyst may be represented by the general formula of CeyLn1-xAx+sMOZ, wherein Ln is a mixture of elements originally in the form of single-phase mixed lanthanides collected from natural ores, a single lanthanide, or a mixture of lanthanides; A is an element selected from a group consisting of Mg, Ca, Sr, Ba, Li, Na, K, Cs, Rb, or any combination thereof; and M is an element selected from the group consisting of Fe, Mn, Cr, Ni, Co, Cu, V, Zr, Pt, Pd, Rh, Ru, Ag, Au, Al, Ga, Mo, W, Ti, or any combination thereof; x is a number defined by 0?x<1.0; y is a number defined by 0?y<10; s is a number defined by 0?s<10; where s=0 only when y>0 and y=0 only when s>0.Type: GrantFiled: November 3, 2008Date of Patent: January 5, 2010Assignee: Catalytic Solutions, Inc.Inventor: Stephen J. Golden
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Publication number: 20090324469Abstract: The present invention relates improving the performance of nitrogen oxide reduction by exposing rich exhaust to catalysts systems comprising a catalyst, wherein the catalyst systems are free of platinum group metals. The present invention also relates to improving reduction of carbon monoxide and hydrocarbon in exhaust by introducing air into a portion of the exhaust between a first catalyst system and a second catalyst system. The present invention also relates to improving nitrogen oxide, carbon monoxide and hydrocarbon reduction by (1) exposing rich exhaust to a first catalysts system, wherein the exhaust has an R value of greater than 1.0 and the first catalyst system comprises a catalyst and is free of platinum group metals and (2) introducing air into a portion of the exhaust in between the first catalyst system and a second catalyst system, wherein the second catalyst system is free of platinum group metals.Type: ApplicationFiled: August 26, 2008Publication date: December 31, 2009Inventors: Stephen J. Golden, Randal Hatfield, Johnny Ngo, Jason Pless
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Patent number: 7638107Abstract: A multi-bed selective catalytic reduction system comprising a gas input duct, a first ammonia injection grid assembly located downstream from the gas input duct, a first selective catalytic reduction catalyst assembly located downstream from the first ammonia injection grid assembly, a second ammonia injection grid assembly located downstream from the first selective catalytic reduction catalyst assembly, a second selective catalytic reduction catalyst assembly located downstream from the second ammonia injection grid assembly, and an exhaust stack located downstream from the second selective catalytic reduction catalyst assembly.Type: GrantFiled: June 11, 2008Date of Patent: December 29, 2009Assignee: Callidus Technologies, LLCInventors: Jeffrey Philip Wirt, Dan W. Ott, Brian James Duck
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Patent number: 7622096Abstract: A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Engine exhaust treatment system and methods of using the same are also provided. In one or more embodiments, the catalyst supported on a carrier has three layers, where at least two of the layers are zoned to have an oxygen storage component being present in an upstream zone in an amount that is less than the oxygen storage component present in the downstream zone.Type: GrantFiled: August 9, 2007Date of Patent: November 24, 2009Assignee: BASF Catalysts LLCInventors: Michel Deeba, Knut Wassermann, Glenn Svoboda, Harold Rabinowitz, Stephan Slemund, Xinyi Wei
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Patent number: 7622095Abstract: A lean NOx trap composition. The lean NOx trap composition utilizes ruthenium in place of higher cost metals such as platinum. The lean NOx trap composition provides high NOx storage efficiency and high NOx conversion efficiency when incorporated in a lean NOx trap. A method of removing harmful gases using the lean NOx trap composition is also described.Type: GrantFiled: June 20, 2005Date of Patent: November 24, 2009Assignee: Ford Global Technologies, LLCInventors: John Li, Christian Goralski, Jr., William Watkins, George Graham, Harendra Gandhi
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Publication number: 20090281365Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper and zirconium oxides but no zinc oxide, which comprises from 70 to 99.8% by weight of copper oxide and from 0.2 to 30% by weight of zirconium oxide, based on the total amount of the adsorption composition.Type: ApplicationFiled: June 15, 2007Publication date: November 12, 2009Applicant: Basf SEInventors: Stephan Hatscher, Michael Hesse
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Publication number: 20090274936Abstract: The present invention provides an apparatus and method for removing CO gas from gas streams or static air. One application of interest in removing CO from air to provide clean air to breathe or other application such as CO monitoring instruments for calibration, to the air side of the fuel cell and to the reformate stream that is employed for a PEM fuel cell. This invention protects the fuel cell catalyst by a means to controlling CO in the reformate stream. The control system is designed to minimize the CO concentration using the novel CO oxidation catalysts described above. One preferred embodiment catalyzes and monitors the CO to indicate the effectiveness; and further comprising two alternate chambers containing catalyst, which is made of high surface area substrate with supramolecular chemistry coated onto that substrate.Type: ApplicationFiled: June 6, 2006Publication date: November 5, 2009Inventors: Mark K. Goldstein, Michelle Sunly Oum
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Method of removing carbon monoxide from an oxygen carrier and apparatus for removing carbon monoxide
Patent number: 7601201Abstract: A method of removing carbon monoxide from an oxygen carrier including setting a carbon monoxide bonded oxygen carrier solution across a separation membrane from an oxygen-dissolved solution; and exposing the setting part to the light and a method of removing carbon monoxide from an oxygen carrier including setting a carbon monoxide oxygen carrier solution across a hollow fiber separation membrane from an oxygen-dissolved solution; and exposing the setting part to light.Type: GrantFiled: April 13, 2006Date of Patent: October 13, 2009Assignee: Nipro CorporationInventors: Ippei Fukutomi, Toshiya Kai, Naohisa Katayama, Takeshi Nizuka, Yoshinori Kida -
Publication number: 20090238743Abstract: The present invention provides catalysts including similar proportions of gold and silver on a granular support and processes for making the same. Methods of using the catalysts in processes requiring the oxidation of carbon dioxide are also provided.Type: ApplicationFiled: September 29, 2008Publication date: September 24, 2009Inventors: Arvind Vyas Harinath, Ramya Vedaiyan, Chandra K. Banerjee, Jagannathan Sankar
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Publication number: 20090238744Abstract: The invention relates to a catalyst system for the removal of carbon monoxide from a hydrogen containing feed gas. The system includes a first catalyst optimised to selectively oxidize carbon monoxide in the feed gas at temperatures below 100° C. The system also includes a second catalyst, downstream from the first catalyst, optimised to selectively oxidize carbon monoxide in the feed gas at temperatures above 100° C., the second catalyst having a higher carbon monoxide conversion rate than the first catalyst at 100° C.Type: ApplicationFiled: March 18, 2009Publication date: September 24, 2009Inventors: Albert N. Chigapov, Brendan Patrick Carberry
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Publication number: 20090208396Abstract: An alumina-based perovskite is formed by mixing a lanthanide source with a transitional alumina to form a dual-phase composition comprising in situ formed LnAlO3 dispersed in alumina. The lanthanide content of the composition ranges from about 12 to 24 wt. % to yield a high surface area composition which is useful as a catalyst or catalyst support such as for precious metals.Type: ApplicationFiled: March 11, 2009Publication date: August 20, 2009Applicant: BASF Catalysts LLCInventors: Xiaolin David Yang, Doan Lieu
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Patent number: 7572422Abstract: An exhaust gas purifying method for a fuel cell vehicle comprises preparing an exhaust gas purifying system for the fuel cell vehicle, the exhaust gas purifying system including a methane removal catalyst for accelerating the conversion of methane into hydrogen and carbon monoxide. The methane removal catalyst comprises a catalytic ingredient including at least one of rhodium, platinum and palladium.Type: GrantFiled: October 29, 2007Date of Patent: August 11, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Toru Sekiba, Hiroshi Akama
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Patent number: 7569197Abstract: The invention provides a process and system for purification of an exhaust gas stream from a combustion engine containing hydrocarbons, soot, carbon monoxide and sulphur dioxide. The process comprises the steps of oxidising the hydrocarbons and part of the soot in a first reactor in the presence of a first catalyst active in oxidising hydrocarbons and soot without oxidising sulphur dioxide and forming a partly purified exhaust gas stream, of cooling of the partly purified exhaust gas stream, of converting the carbon monoxide of the partly purified exhaust gas stream in a second reactor in presence of a second catalyst active in oxidising carbon monoxide without oxidising sulphur dioxide and of withdrawing a purified exhaust gas stream.Type: GrantFiled: March 1, 2007Date of Patent: August 4, 2009Assignee: Haldor Topsoe A/SInventor: Keld Johansen
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Patent number: 7566426Abstract: A method for catalytically cleaning an exhaust gas, including receiving the exhaust gas in an inlet channel, blocking the exhaust gas in the inlet channel, diffusing the exhaust gas through a porous substantially fibrous nonwoven wall of the inlet channel, reacting the exhaust gas with at least one catalyst material to at least partially remove nitrous oxides, hydrocarbons and carbon monoxide therefrom, the at least one catalyst material being disposed on the porous wall, trapping particulate matter in the porous substantially fibrous nonwoven wall, receiving the diffused exhaust gas into an outlet channel, and transitioning the exhaust gas from the outlet channel to the atmosphere.Type: GrantFiled: April 30, 2007Date of Patent: July 28, 2009Assignee: GEO2 Technologies, Inc.Inventor: Bilal Zuberi
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Patent number: 7560410Abstract: A catalyst comprising gold nanodots on cerium oxide, catalytically active for oxidation of carbon monoxide at room temperature. The catalyst is prepared by deposition-precipitation followed by aging or ultrasound treatment.Type: GrantFiled: June 15, 2006Date of Patent: July 14, 2009Assignee: Philip Morris USA Inc.Inventors: Unnikrishnan R. Pillai, Sarojini Deevi
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Publication number: 20090169453Abstract: A combustion exhaust gas processing device to efficiently remove harmful substances such as dust, NOx, persistent organic pollutants, a volatile organic compound and CO in cement kiln combustion exhaust gas, thereby holding down facility cost and operating cost low. The combustion exhaust gas processing device 1 comprises: a dust collector 6 collecting dust in a cement kiln combustion exhaust gas G1; a wet dust collector 7 as a catalyst-poisoning-substance stripper removing a catalyst-poisoning substance from a combustion exhaust gas G2 which passed the dust collector 6; preheaters 10 and 11 heating beforehand a combustion exhaust gas G3 which passed the wet dust collector 7; and a catalyst device 12 from which NOx, a persistent organic pollutant, etc. in the preheated combustion exhaust gas, are removed. A titanium-vanadium catalyst etc. as an oxide catalyst is used upstream of the catalyst device 12, and a platinum catalyst etc. as a noble-metal catalyst downstream of the catalyst device 12.Type: ApplicationFiled: December 27, 2005Publication date: July 2, 2009Applicants: Taiheiyo Cement Corporation, Nippon Shokubai Co., Ltd.Inventors: Shinichiro Saito, Yasuhiro Uchiyama, Junichi Terasaki, Hisashi Kondo, Mitsuharu Hagi, Shinyuki Masaki
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Patent number: 7550124Abstract: A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first layer deposited on the carrier and comprising palladium deposited on a refractory metal oxide and an oxygen storage component; a second layer deposited on the first layer and comprising rhodium deposited on a refractory metal oxide and an oxygen storage component; and a third layer deposited on the second layer and comprising palladium deposited on a refractory metal oxide.Type: GrantFiled: August 17, 2007Date of Patent: June 23, 2009Assignee: BASF Catalysts LLCInventors: Shau-Lin F. Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo
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Patent number: 7544341Abstract: A carbon monoxide removing catalyst such as a ruthenium supporting catalyst is provided for removing, through oxidation thereof, carbon monoxide from an alcohol reformed gas containing hydrogen and carbon monoxide to be supplied to a fuel cell. For its activation, the catalyst is caused to contact an inactive gas or a hydrogen-containing inactive gas consisting of less than 50 volume % of hydrogen gas and the remaining volume of inactive gas, thereby to avoid poisoning of the electrode of the fuel cell with carbon monoxide.Type: GrantFiled: August 24, 2006Date of Patent: June 9, 2009Assignee: Osaka Gas Co., Ltd.Inventors: Mitsuaki Echigo, Takeshi Tabata, Hirokazu Sasaki, Osamu Yamazaki
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Patent number: 7541012Abstract: The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method of producing the catalytic material described herein. Finally, the present invention features using the catalytic material for removing contaminants and for getting the desired products.Type: GrantFiled: July 7, 2004Date of Patent: June 2, 2009Assignee: The Hong Kong University of Science and TechnologyInventors: King Lun Yeung, Nan Yao, Ka Yee Ho
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Patent number: 7537742Abstract: This invention discloses an optimum set of adsorbents for use in H2-PSA processes. Each adsorbent bed is divided into four regions; Region 1 contains adsorbent for removing water; Region 2 contains a mixture of strong and weak adsorbents to remove bulk impurities like CO2; Region 3 contains a high bulk density (>38 lbm/ft3) adsorbent to remove remaining CO2; and most of CH4 and CO present in H2 containing feed mixtures; and Region 4 contains adsorbent having high Henry's law constants for the final cleanup of N2 and residual impurities to produce hydrogen at the desired high purity.Type: GrantFiled: December 22, 2003Date of Patent: May 26, 2009Assignee: Praxair Technology, Inc.Inventors: Mohamed Safdar Allie Baksh, Mark William Ackley, Frank Notaro
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Publication number: 20090130011Abstract: Regenerative selective catalytic reduction (RSCR) systems and processes are provided whereby NOx and CO levels in gases are reduced by mixing the gas with a reactant and then introducing the gas into an RSCR apparatus for treatment that entails heating the gas, causing the gas to undergo one or more catalytic reactions, and then directing the gas through a heat transfer area, to which the gas provides heat for use in connection with successive cycles of the RSCR process.Type: ApplicationFiled: January 16, 2009Publication date: May 21, 2009Applicant: Babcock Power Environmental Inc.Inventors: Richard F. Abrams, John Robert Harold
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Patent number: 7524358Abstract: Trace amounts of carbon monoxide and optionally hydrogen are removed from gaseous feed streams by passing the feed stream through a carbon monoxide adsorbent (33) prior to passing it through a supported metal catalyst (34). The invention saves significant capital and operational costs over existing processes.Type: GrantFiled: May 30, 2003Date of Patent: April 28, 2009Assignee: Praxair Technology, Inc.Inventors: Himanshu Saxena, Mark William Ackley, John Fredric Billingham, Philip Alexander Barrett
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Patent number: 7521033Abstract: The present invention is directed to an improved apparatus and method of minimizing catalyst poisoning from exhaust gas streams containing inorganic deposits and particulate matter. More specifically, the present invention is directed to an upstream metallic foam trap and a downstream monolithic precious metal catalyst, wherein the trap physically blocks inorganic deposits and particulate matter from poisoning the downstream catalyst. The present invention is also directed to a metallic foam trap containing a coat comprising a first metallic thermal arc sprayed layer and optionally a second refractory metal oxide.Type: GrantFiled: December 22, 2005Date of Patent: April 21, 2009Assignee: BASF Catalysts LLCInventors: Michael Patrick Galligan, Joseph Charles Dettling
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Patent number: 7521031Abstract: A method for treating exhaust gas includes: adsorbing target components in the exhaust gas with an adsorbent (5); introducing a nitrogen gas with an oxygen concentration of 10 vol % or less and a purity of 90 vol % or more into the adsorbent (5); and applying (6, 7, 8) nonthermal plasma to the adsorbent (5). After the adsorbent (5) adsorbs the target components in the exhaust gas, the nitrogen gas is introduced into the adsorbent (5), and then an electric discharge is generated so that the nonthermal plasma of the nitrogen gas is applied to the adsorbent (5) and causes desorption of the target components and regeneration of the adsorbent (5). This method can remove the target components effectively from oxygen-containing exhaust gas by using nitrogen gas plasma with high activity as a result of ionization of a nitrogen gas and combining adsorption, desorption by the nitrogen gas plasma, and nitrogen plasma treatment.Type: GrantFiled: October 6, 2004Date of Patent: April 21, 2009Assignee: Osaka Industrial Promotion OrganizationInventors: Masaaki Okubo, Toshiaki Yamamoto, Tomoyuki Kuroki
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Publication number: 20090098037Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper, zinc and zirconium oxides and whose copper-comprising component has a degree of reduction, expressed as weight ratio of metallic copper to the sum of metallic copper and copper oxides, calculated as CuO, of at least 45% and not more than 75%.Type: ApplicationFiled: February 7, 2007Publication date: April 16, 2009Applicant: BASF SEInventors: Stephan Schlitter, Stephan Hatscher, Michael Hesse, Heiko Urtel
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Publication number: 20090098036Abstract: Carbon monoxide is removed from streams by adsorption on an adsorption composition which comprises copper, zinc and zirconium oxides and whose copper-comprising component has a degree of reduction, expressed as weight ratio of metallic copper to the sum of metallic copper and copper oxides, calculated as CuO, of at least 90% and not more than 97%.Type: ApplicationFiled: February 7, 2007Publication date: April 16, 2009Applicant: BASF SEInventors: Stephan Hatscher, Michael Hesse
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Patent number: 7517510Abstract: A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In one or more embodiments, the catalyst comprises three layers in conjunction with a carrier: a first layer deposited on the carrier and comprising palladium deposited on a refractory metal oxide and an oxygen storage component; a second layer deposited on the first layer and comprising rhodium deposited on a refractory metal oxide and an oxygen storage component; and a third layer deposited on the second layer and comprising palladium deposited on a refractory metal oxide.Type: GrantFiled: June 7, 2007Date of Patent: April 14, 2009Assignee: Basf Catalysts LLCInventors: Shau-Lin F. Chen, Harold Rabinowitz, Jin Sakakibara, Tian Luo
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Patent number: 7514055Abstract: Methods of controlling emissions from a diesel engine are provided. The method includes contacting the emissions with a perovskite-type catalyst consisting essentially of a metal oxide composition represented by the general formula Aa?xBxMOb, in which A is a mixture originally in the form of single phase mixed lanthanides collected from bastnasite; B is a divalent or monovalent cation; M is at least one element selected from the group consisting of M is at least one element selected from the group consisting of elements of an atomic number of from 22 to 30, 40 to 51, and 73 to 80; a is 1 or 2; b is 3 when a is 1 or b is 4 when a is 2; and x is a number defined by 0<x<0.7. The perovskite-type catalyst may be used to oxidize hydrocarbons and carbon monoxide and to control particulate emissions in the diesel exhaust.Type: GrantFiled: September 20, 2005Date of Patent: April 7, 2009Assignee: Catalytic Solutions, Inc.Inventor: Stephen J. Golden
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Patent number: 7514057Abstract: A method of making a composition, said method comprising, spraying a substance comprising platinum and iron into or onto an alumina-containing compound is disclosed. The resulting composition can then be used in a process for oxidizing carbon monoxide with free oxygen.Type: GrantFiled: August 20, 2008Date of Patent: April 7, 2009Assignee: Conoco Phillips CompanyInventors: M. Bruce Welch, Roland Schmidt, Jianhua Yao, Glenn W. Dodwell, Robert W. Morton, Jason J. Gislason, James B. Kimble, David E. Simon, Marvin M. Johnson
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Publication number: 20090087363Abstract: The present invention provides an encapsulation technology and methods of using the encapsulation technology in processes involving the conversion of carbon monoxide to carbon dioxide.Type: ApplicationFiled: September 29, 2008Publication date: April 2, 2009Inventors: Arvind Vyas Harinath, Ramya Vedaiyan, Jagannathan Sankar
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Patent number: 7488462Abstract: Catalyst systems and methods provide benefits in reducing the content of nitrogen oxides in a gaseous stream containing nitric oxide (NO), hydrocarbons, carbon monoxide (CO), and oxygen (O2). The catalyst system comprises an oxidation catalyst comprising a first metal supported on a first inorganic oxide for catalyzing the oxidation of NO to nitrogen dioxide (NO2), and a reduction catalyst comprising a second metal supported on a second inorganic oxide for catalyzing the reduction of NO2 to nitrogen (N2).Type: GrantFiled: April 26, 2006Date of Patent: February 10, 2009Assignee: The Ohio State UniversityInventors: Umit S. Ozkan, Erik M. Holmgreen, Matthew M. Yung
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Publication number: 20080305023Abstract: A method of making a composition, said method comprising, spraying a substance comprising platinum and iron into or onto an alumina-containing compound is disclosed. The resulting composition can then be used in a process for oxidizing carbon monoxide with free oxygen.Type: ApplicationFiled: August 20, 2008Publication date: December 11, 2008Applicant: CONOCOPHILLIPS COMPANYInventors: M. Bruce WELCH, Roland SCHMIDT, Jianhua YAO, Glenn W. DODWELL, Robert W. MORTON, Jason J. GISLASON, James B. Kimble, David E. SIMON, Marvin M. JOHNSON
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Publication number: 20080305022Abstract: Goldcatalyst Goldcatalyst comprising gold on a support of ceria or ceria-manganese oxide is used for the oxidation of CO in a H2 stream.Type: ApplicationFiled: April 18, 2006Publication date: December 11, 2008Inventors: Michael Kroll, Stipan Katusic, Michael Kramer, Jerry (Chih-Yu) Chung, Yu-Wen Chen
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Patent number: 7455818Abstract: A method treats a flow gas that is guided via a catalytic adsorber module to oxidize contaminants carried in the flow gas. The method reliably purifies the flow gas using equipment that is held to a comparatively low level of complexity. To this end, the flow gas is guided in a first purification step via a first catalytic adsorber module to oxidize contaminants carried along therewith, during which molecular or atomic oxygen is added to the flow gas, and the flow gas mixed with the added oxygen is guided in a second purification step via an oxidation catalyst. The flow gas flowing away from the oxidation catalyst is guided in a third purification step via a second catalytic adsorber module to reduce excessive oxygen.Type: GrantFiled: April 4, 2005Date of Patent: November 25, 2008Assignee: Areva NP GmbHInventor: Axel Hill
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Publication number: 20080287284Abstract: The present invention relates to a catalyst composition comprising rhodium supported on an anionic clay. This catalyst composition is suitable as CO combustion additive in fluid catalytic cracking units. Compared to prior art CO combustion additives, the formation of NOx is minimized.Type: ApplicationFiled: March 8, 2006Publication date: November 20, 2008Inventors: Julie Ann Francis, Lin Luo, Darrell Ray Rainer
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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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Publication number: 20080267849Abstract: Processes comprising: providing a gas stream comprising hydrogen chloride and carbon monoxide; and oxidizing at least a portion of the carbon monoxide in the gas stream in the presence of a catalyst to form a product gas comprising hydrogen chloride and carbon dioxide; wherein the catalyst comprises tin dioxide and a ruthenium compound comprising at least one element selected from the group consisting of oxygen and chlorine.Type: ApplicationFiled: April 28, 2008Publication date: October 30, 2008Applicant: Bayer MaterialScience AGInventors: Michel Haas, Frank Gerhartz, Aurel Wolf, Oliver Felix-Karl Schluter
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Publication number: 20080241038Abstract: This present invention provides the preparation of a manganese oxide-ferric oxide-supported nano-gold catalyst and a process for subjecting carbon monoxide and oxygen to interaction resulting in the formation of carbon dioxide in a hydrogen-rich environment by a manganese oxide-ferric oxide-supported nano-gold catalyst to remove carbon monoxide in hydrogen stream. The size of the nano-gold particle is less than 5 nm and supported on mixed oxides MnO2/Fe2O3 in various molar ratios. Preferential oxidation of CO in the presence of CO, O2 and H2 by the manganese oxide-ferric oxide-supported nano-gold catalyst is carried out in a fixed-bed reactor in the process of the present invention. The O2/CO molar ratio is in the range of 0.5 to 4. The manganese oxide-ferric oxide-supported nano-gold catalyst of the present invention is applied to reduce CO concentration in hydrogen steam to less than 100 ppm to prevent CO from contaminating the electrodes of a fuel cell.Type: ApplicationFiled: June 19, 2007Publication date: October 2, 2008Applicant: Tatung CompanyInventors: Yu-Wen Chen, Min-Hsien Lin, Hung-Chi Hsu, Jia-Hong Lin
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Publication number: 20080241039Abstract: A method for the oxidative removal of carbon monoxide from a hydrogen containing gas employing a catalyst for the selective oxidation of carbon monoxide is provided.Type: ApplicationFiled: February 15, 2008Publication date: October 2, 2008Applicant: Idemitsu Kosan Co., Ltd.Inventors: Tetsuya FUKUNAGA, Kozo Takatsu, Masatoshi Shibata, Satoshi Hachiya, Hiroyuki Endo