Utilizing Metal Oxide Catalyst Patents (Class 423/656)
  • Patent number: 4107076
    Abstract: A method for carrying out the water gas shift reaction by use of a homogeneous catalyst system containing rhodium carbonyl iodide in a water/acetic acid solvent is described. The catalyst system can be formed from [RH (CO).sub.2 Cl].sub.2, aqueous HI and glacial acetic acid. When a reactor is charged under 250-400 torr of CO at 90.degree. C catalysis of the water gas shift reaction results.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: August 15, 1978
    Assignee: University of Rochester
    Inventors: Richard Eisenberg, Chien-Hong Cheng
  • Patent number: 4091086
    Abstract: Catalytic compositions particularly useful in the production of hydrogen from methanol, especially by steam reforming, which comprises a mixture of zinc oxide, copper oxide, thorium oxide and aluminum oxide whereby the activity and activity maintenance of the catalytic composition is superior relative to a composition otherwise substantially the same but lacking thoria.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: May 23, 1978
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: Saul G. Hindin, Joseph C. Dettling
  • Patent number: 4054644
    Abstract: Hydrogen is produced by reacting carbon monoxide with steam at a temperature of at least 200.degree. F. in the presence of a supported catalyst containing: (1) at least one alkali metal compound derived from an acid having an ionization constant below 1 .times. 10.sup.-3, (2) a metallic hydrogenation- dehydrogenation material, and (3) a halogen moiety. The ratio of metal component to alkali metal compound, each calculated on the basis of the oxide thereof, ranges from 0.0001 to about 10 parts by weight per part by weight of the alkali metal compound. The halide constituent is present in amounts in excess of about 0.01 weight %, based on total catalyst. A preferred catalyst composition comprises potassium carbonate, a mixture of cobalt and molybdenum oxides and combined chlorine contained on an alumina support.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: October 18, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventors: Marnell A. Segura, Clyde L. Aldridge, Kenneth L. Riley, Lloyd A. Pine
  • Patent number: 4029754
    Abstract: A closed cycle process produces hydrogen and oxygen from water by use of manganese chloride and carbon dioxide. The four reactions of the cycle are:1. MnCl.sub.2 + CO.sub.2 .fwdarw. MnO + CO + Cl.sub.22. CO + H.sub.2 O .fwdarw. CO.sub.2 + H.sub.23. mnO + 2 HCl .fwdarw. MnCl.sub.2 + H.sub.2 O4. cl.sub.2 + H.sub.2 O .fwdarw. 2HCl + 1/2 O.sub.2.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: June 14, 1977
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Shoichi Sata, Yasumasa Ikezoe
  • Patent number: 4025612
    Abstract: Hydrogen is produced by the combustion of carbon with air to produce a combustion gas effluent containing carbon dioxide and nitrogen. The carbon dioxide is separated and reacted with carbon to produce carbon monoxide. The resulting produced carbon monoxide is then reacted with steam to produce carbon dioxide and hydrogen and the resulting produced hydrogen separated. The carbon utilized for the production of hydrogen may be obtained by the thermal decomposition of hydrocarbons to yield carbon and gaseous hydrogen or the carbon utilized in this process may be obtained from a solid carbonaceous fuel, such as coal or coke or the like.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: May 24, 1977
    Assignee: Texaco Inc.
    Inventor: Everett M. Barber
  • Patent number: 4021362
    Abstract: A gas generating solid composition adapted to provide gaseous reactants to a chemical laser which comprises a mixture of (a) lithium aluminum deuteride or hydride, (b) deuteroammonium chloride or ammonium chloride, (c) iron oxide, and (d) a polymeric binder.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: May 3, 1977
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Ronald E. Channell, John E. O'Pray
  • Patent number: 4021366
    Abstract: This is a continuous process for producing hydrogen-rich gas. Successive beds of water-gas shift conversion catalysts of differing properties are employed in a shift converter to achieve an economical balance between catalyst activity and catalyst life. For example, a comparatively small fixed bed of highly active low temperature water-gas shift conversion catalyst may be loaded on top of a fixed bed of rugged low cost moderately active high temperature water-gas shift catalyst. A CO-rich gas and H.sub.2 O are introduced into the bed of low temperature shift catalyst where reaction takes place. The partially reacted gas stream leaves the bed of low temperature shift catalyst and is introduced into the bed of high temperature catalyst at a suitable temperature for triggering off therein the water gas shift reaction without the additon of heat from an external source. By this means it may be possible to produce hydrogen-rich gas with high conversions of CO to CO.sub.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: May 3, 1977
    Assignee: Texaco Inc.
    Inventors: Allen M. Robin, Edward T. Child
  • Patent number: 3974096
    Abstract: Hydrogen is produced by reacting carbon monoxide with steam at a temperature of at least 200.degree.F. in the presence of a supported catalyst containing: (1) at least one alkali metal compound derived from an acid having an ionization constant below 1 .times. 10.sup..sup.-3, (2) a metallic hydrogenation-dehydrogenation material, and (3) a halogen moiety. The ratio of metal component to alkali metal compound, each calculated on the basis of the oxide thereof, ranges from 0.0001 to about 10 parts by weight per part by weight of the alkali metal compound. The halide constituent is present in amounts in excess of about 0.01 weight %, based on total catalyst. A preferred catalyst composition comprises potassium carbonate, a mixture of cobalt and molybdenum oxides and combined chlorine contained on an alumina support.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: August 10, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Marnell A. Segura, Clyde L. Aldridge, Kenneth L. Riley, Lloyd A. Pine
  • Patent number: 3961037
    Abstract: A process for reacting carbon monoxide with steam at temperatures below 300.degree.C. over a catalyst comprising the product of reducing partly the co-precipitated oxides of copper and zinc and at least one further metal selected from the metals of Groups II to V of the Periodic Table whose oxides are usable as catalyst supports.
    Type: Grant
    Filed: November 27, 1973
    Date of Patent: June 1, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Phineas Davies, Alan James Hall
  • Patent number: 3957962
    Abstract: There is disclosed a process for the preparation of hydrogen-rich gas by passing a gas mixture containing carbon monoxide and water vapor over a sulfided catalyst which includes nickel and/or cobalt, molybdenum and aluminum with the aluminum being present in an amount of from 0.1 to 1.0 part of aluminum per part of nickel and/or cobalt on a weight basis. The catalyst is prepared by impregnating an alumina carrier with one or more solutions of compounds of the catalysts in which at least 40%w of the aluminum that is used is added to the carrier by co-impregnation with the nickel and/or cobalt.
    Type: Grant
    Filed: March 22, 1974
    Date of Patent: May 18, 1976
    Assignee: Shell Oil Company
    Inventor: John Ramsbotham
  • Patent number: 3957961
    Abstract: A process for the production of hydrogen/deuterium-containing gas in which the enriched condensate obtained from the production of a hydrogen/deuterium-containing gas mixture is collected and subjected to a direct exchange of isotopes with the feedsteam admitted to the process. Such condensate can be brought into direct exchange of isotopes with the gas water vapour mixture within the process, viz. ahead of the CO conversion section. The exchange of isotopes may be performed according to the counter-current principle. If it is intended to maintain in the hydrogen/deuterium-containing gas a certain definite content of water vapour whose phase condition is superior to the condition achieved when using normal cooling water, this gas, at least 0.6 kg/m.sup.3 of gas, is subjected to an exchange of isotopes with the water fed additionally into the process.
    Type: Grant
    Filed: April 19, 1973
    Date of Patent: May 18, 1976
    Assignee: Friedrich Uhde GmbH
    Inventors: Eberhard Nitschke, Arvind Desai, Hartmut Ilgner
  • Patent number: 3932599
    Abstract: A method of obtaining hydrogen from water in a multi-stage circulatory process avoids the need to use solid inorganic salts as auxiliary products by using only gases and liquids in the reaction stages. Carbon monoxide is reacted catalytically with steam producing carbon dioxide and hydrogen; the carbon dioxide is reacted with steam and sulphur dioxide to give sulphuric acid and carbon monoxide; the sulphuric acid is split into sulphur trioxide and steam; the sulphur trioxide is dissociated into oxygen and sulphur dixoide. The CO and SO.sub.2 are fed back into the process, and hydrogen and oxygen obtained as end products.
    Type: Grant
    Filed: February 25, 1975
    Date of Patent: January 13, 1976
    Assignee: Rheinische Braunkohlenwerke Aktiengesellschaft
    Inventors: Rudolf Schulten, Johannes Teggers, Roland Schulze Bentrop