Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Reexamination Certificate
2006-09-25
2010-06-22
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
C423S532000, C423S533000, C423S538000, C502S325000, C502S349000, C502S304000, C502S300000, C502S355000, C502S439000
Reexamination Certificate
active
07740827
ABSTRACT:
The present invention relates generally to catalysts comprising ruthenium oxide and to processes for catalyzing the oxidation and conversion of sulfur dioxide (SO2) to sulfur trioxide (SO3) using such catalysts. SO2at low concentrations in process gas streams can be effectively oxidized to SO3at relatively low temperatures using the ruthenium oxide catalysts of the present invention. In one application, the ruthenium oxide catalysts are used in the final contact stage for conversion of SO2to SO3in multiple stage catalytic converters used in sulfuric acid manufacture.
REFERENCES:
patent: 2742437 (1956-04-01), Houdry et al.
patent: 3554929 (1971-01-01), Aarons
patent: 3692810 (1972-09-01), Washecheck
patent: 3790654 (1974-02-01), Bagley
patent: 3824196 (1974-07-01), Benbow et al.
patent: 4364888 (1982-12-01), Levin
patent: 4552733 (1985-11-01), Thompson et al.
patent: 4631267 (1986-12-01), Lachman et al.
patent: 4822899 (1989-04-01), Groves et al.
patent: 4959494 (1990-09-01), Felthouse
patent: 5011516 (1991-04-01), Altman et al.
patent: 5059574 (1991-10-01), Abrevaya
patent: 5130112 (1992-07-01), McAlister et al.
patent: 5145825 (1992-09-01), Deeba et al.
patent: 5175136 (1992-12-01), Felthouse
patent: 5264200 (1993-11-01), Felthouse et al.
patent: 5264299 (1993-11-01), Krasij et al.
patent: 5372849 (1994-12-01), McCormick et al.
patent: 5395972 (1995-03-01), Furutani et al.
patent: 5451558 (1995-09-01), Campbell et al.
patent: 5589596 (1996-12-01), Furutani et al.
patent: 5663458 (1997-09-01), Ito et al.
patent: 5871707 (1999-02-01), Hibi et al.
patent: 5908607 (1999-06-01), Abekawa et al.
patent: 6037307 (2000-03-01), Campbell et al.
patent: 6376414 (2002-04-01), Antons et al.
patent: 6417062 (2002-07-01), Foust et al.
patent: 6479100 (2002-11-01), Jin et al.
patent: 6541067 (2003-04-01), Marsh et al.
patent: 6605735 (2003-08-01), Kawano et al.
patent: 6649211 (2003-11-01), Lyons et al.
patent: 6677068 (2004-01-01), Ioth et al.
patent: 6713035 (2004-03-01), Iwanaga et al.
patent: 6800937 (2004-10-01), Marsh et al.
patent: 6844261 (2005-01-01), Marsh et al.
patent: 6852667 (2005-02-01), Hibi et al.
patent: 6977066 (2005-12-01), Iwanaga et al.
patent: 2002/0028173 (2002-03-01), Hibi et al.
patent: 2002/0131925 (2002-09-01), Shore et al.
patent: 2002/0172640 (2002-11-01), Hibi et al.
patent: 2003/0144143 (2003-07-01), Jordan et al.
patent: 2004/0024244 (2004-02-01), Walsdorff et al.
patent: 2004/0052718 (2004-03-01), Walsdorff et al.
patent: 2005/0059839 (2005-03-01), Liu et al.
patent: 2005/0100495 (2005-05-01), Chapat et al.
patent: 402286 (1986-08-01), None
patent: 19822280 (1999-11-01), None
patent: 722763 (1996-07-01), None
patent: 0936184 (2000-06-01), None
patent: 1059118 (2002-06-01), None
patent: 1425631 (1976-02-01), None
patent: 2000325790 (2000-11-01), None
patent: 2002239387 (2002-08-01), None
patent: 0043313 (2000-07-01), None
patent: 0110550 (2001-02-01), None
patent: 0160743 (2001-08-01), None
patent: 0198210 (2001-12-01), None
patent: 03064333 (2003-08-01), None
patent: 2004026761 (2004-04-01), None
patent: 2004030812 (2004-04-01), None
patent: 2005014470 (2005-02-01), None
patent: 2005021137 (2005-03-01), None
Echigo, et al., “Development of Residential PEFC Cogeneration Systems: Ru Catalyst for CO preferential Oxidation in Reformed Gas,” 2003, Catalysis Today, 84:209-215.
Fan, “Adsorption Studies on RuO2(110) and Ru(1121) Surfaces,” 2002, Dissertation, University of Berlin, 134 pgs.
Fomina, et al., “Oxosulphato-Complexes of Ruthenium,” 1989, Russian J or Inorganic Chem, 34(6):879-882.
Ghatak, et al., “The Crystal and Molecular Structure of bis{-(u-sulphato-O′-O′-O″)bis (triphenylphosphine) (sulphurdioxide)ruthenium(II)}} . (toluene) [Ru(SO4)(SO2)(PPh3)x]x . (C7H8),” 1979, Transition Metal Chem, 4/4:260-264.
Groves, et al., “Aerobic Epoxidation of Olefins with Ruthenium Porphyrin Catalysts,” 1985, J Am Chem Soc, 107:5790-5792.
Ishiguro, et al., “Efficient Reduction of Sulfur Dioxide with Hydrogen Over TiO2-Supported Catalysts Derived from Ruthenium Salts and Ruthenium Cluster Complexes,” 2002, J Catalysis, 206:159-164.
Ji, et al., “Environmentally Friendly Alcohol Oxidation Using Heterogeneous Catalyst in the Presence of Air at Room Temperature,” 2002, Catalysis Comm, 3:511-517.
Jirsak T., et al., “Chemistry of SO2 on Ru(001): Formation of SO3 and SO4,” 1998, Surface Science, 418:8-21.
Madhavaram, et al., “Oxidation Reactions Over RuO2: A Comparative Study of the Reactivity of the (110) Single Crystal and Polycrystalline Surfaces,” 2001, J Catalysis, 12 pages, http://www.idealibrary.com.
Musawir, et al., “Highly Efficient Liquid-Phase Oxidatio of Primary Alcohols to Aldehydes with Oxygen Catalysed by Ru-Co Oxide,” 2003, Chem Commun, pp. 1414-1415.
Qin, et al., “Catalytic Wet Air Oxidation of Ammonia Over Alumina Supported Metals,” 1998, Applied Catalysis, 16/3:261-268 Abstract.
Reuter, et al., “First-Principles, Atomistic Thermodynamics for Oxidation Catalysis,” 2002, Materials Science, arXiv: cond-mat/0211602 v1, 4 pages.
Reuter, et al., “Composition and Structure of the RuO2(110) Surface in an O2 and CO Environment: Implications for the Catalytic Formation of CO2,” 2003, Materials Science, arXiv:cond-mat/0301602v1, 12 pages.
Sakka et al., “Formation of Sheets and Coating Films from Alkoxide Solutions,” 1984, J Non-Crystalline Solids, 63 (1-2):223-235 (Abstract).
Shoji, T. et al., “Oxidation Catalyst for Sulfides and Sulfide Measuring Apparatus Equipped With The Catalyst,” 2001, Database CA Chemical Abstracts Service, Abstract No. 134:10096.
Wendt, et al., “The Role of Weakly Bound on-top Oxygen in the Catalytic CO Oxidation Reaction over RuO1(110),” 2004, J. Am. Chem. Soc, 126(5), 1537-1541.
Wendt, et al., “Catalytic Activity of RuO2(110) in the Oxidation of CO,” 2003, Catalysis Today, 85:167-175.
Wilke, T., et al., “Surface-Enhanced Raman Spectroscopy at Transition Metal-Gas Interfaces: Adsorption and Reactions of Sulfur Dioxide on Platinum-, Rhodium-, and Ruthenium-Coated Gold,” 1991, J Catalysis, 130(1):62-75.
Wilkinson et al., “Alkyl compounds of ruthenium-(III) and -(V) and osmium(III). X-Ray crystal structures of hexakis (trimethylsilylmethyl)- and hexakis(neopentyl)diruthenium(III), dioxohexakis(trimethylsilylmethyl)diruthenium(V), and bis (3-allyl)tetrakis(neopentyl)diosmium(III),” 1986, JCS, Dalton Trans, 2711-2720. Abstract Only.
Zhan, et al., “Zeolite-Confined Nano-RuO2: A Green, Selective, and Efficient Catalyst for Aerobic Alcohol Oxidation,” 2003, J Am Chem Soc, 125:2195-2199ZHAN, et al., “Zeolite-Confined Nano-RuO2: A Green, Selective, and Efficient Catalyst for Aerobic Alcohol Oxidation,” 2003, J Am Chem Soc, 125:2195-2199.
Beziat et al., “Catalytic Wet Air Oxidation of Carboxylic Acids on TiO2-Supported Ruthenium Catalysts,” 1999, J Catalysis, 182:129-135.
Bolzan et al., “Structural Studies of Rutile-Type Metal Dioxides,” 1997, Acta Cryst, B53:373-380.
Broekhuis et al., “Monolith Catalytic Process for Producing Sorbitol: Catalyst Development and Evaluation,” 2004, Ind Eng Chem Res, 43:5146-5155.
Dobrynkin et al., “Solid Catalysts for Wet Oxidation of Nitrogen-Containing Organic Compounds,” 1998, Ctalysis Today, 45:257-260.
Floquet et al., “Effect of Ozone on Ruthenium Species in Alkaline Medium—Part 1: Oxidative Dissolution of Ruthenium Dioxide Hydrate,” 2006, Radiochimica Acta, 94/1:5-13 (Abstract).
Haase, J., “Structural Studies of SO2 Adsorption on Metal Surfaces,” 1997, J Phys: Condens Matter, 9:3647-3670.
King et al., “The Oxidation of Water by Cerium(iv) Catalysed by Nanoparticulate RuO2 on Mesoporous Silica,” 2005, Dalton Trans, 1027-1032.
Lee et al., “Microstructures and Electrical Resistivities of the RuO2 Electro
Bino Abraham
Felthouse Timothy R.
MECS, Inc.
Senniger Powers LLP
Vanoy Timothy C
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