Catalysts for the selective oxidation of hydrogen sulfide to sulfur
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-017/04
B01D-053/52
출원번호
US-0234367
(1999-01-20)
발명자
/ 주소
Srinivas Girish
Bai Chuansheng
출원인 / 주소
TDA Research, Inc.
대리인 / 주소
Greenlee, Winner & Sullivan, P.C.
인용정보
피인용 횟수 :
38인용 특허 :
39
초록▼
This invention provides catalysts for the oxidation of hydrogen sulfide. In particular, the invention provides catalysts for the partial oxidation of hydrogen sulfide to elemental sulfur and water. The catalytically active component of the catalyst comprises a mixture of metal oxides containing tita
This invention provides catalysts for the oxidation of hydrogen sulfide. In particular, the invention provides catalysts for the partial oxidation of hydrogen sulfide to elemental sulfur and water. The catalytically active component of the catalyst comprises a mixture of metal oxides containing titanium oxide and one or more metal oxides which can be selected from the group of metal oxides or mixtures of metal oxides of transition metals or lanthanide metals. Preferred metal oxides for combination with TiO.sub.2 in the catalysts of this invention include oxides of V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Tc, Ru, Rh, Hf, Ta, W, Au, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. Catalysts which comprise a homogeneous mixture of titanium oxide and niobium (Nb) oxide are also provided. A preferred method for preparing the precursor homogenous mixture of metal hydroxides is by coprecipitation of titanium hydroxide with one or more other selected metal hydroxides. Catalysts of this invention have improved activity and/or selectivity for elemental sulfur production. Further improvements of activity and/or selectivity can be obtained by introducing relatively low amounts (up to about 5 mol %)of a promoter metal oxide (preferably of metals other than titanium and that of the selected second metal oxide) into the homogeneous metal/titanium oxide catalysts of this invention.
대표청구항▼
[ We claim:] [1.] A process for oxidizing hydrogen sulfide to elemental sulfur which comprises the step of contacting hydrogen sulfide together with an oxygen-containing gas with a catalyst which comprises a mixture of titanium oxide and a second metal oxide which can be selected from the group of m
[ We claim:] [1.] A process for oxidizing hydrogen sulfide to elemental sulfur which comprises the step of contacting hydrogen sulfide together with an oxygen-containing gas with a catalyst which comprises a mixture of titanium oxide and a second metal oxide which can be selected from the group of metal oxides of Mn, Co, Cu, Nb, Mo, Tc, Ru, Rh, Hf, Ta, W, Au, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and mixtures thereof and wherein said catalyst is held in a reactor at temperatures high enough to avoid condensation of sulfur on the catalyst.
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이 특허에 인용된 특허 (39)
Rolke Dietrich (Hofheim DEX) Cornel Peter (Frankfurt am Main DEX) Lell Rainer (Nidderau DEX) Stetzer Klaus (Dreieich DEX) Neuroth Gabriele (Frankfurt DEX), Activated carbon process for removing hydrogen sulfide from gases.
van den Brink Peter J. (Utrecht NLX) Geus John W. (Utrecht NLX), Catalyst for the selective oxidation of sulphur compounds to elemental sulphur, process for preparing such a catalyst an.
Hara Yasushi (Shin-nanyo JPX) Suzuki Nobumasa (Shin-nanyo JPX) Ito Yukio (Kudamatsu JPX) Sekizawa Kazuhiko (Shin-nanyo JPX), Mixed oxide catalyst and process for producing an alkylenamine by using the catalyst.
Wilson Geoffrey R. (Westlake Village CA) Kayamoto Masami (Whittier CA), Process for forming alumina pellets containing titania and process for producing hydrodesulfurization catalyst containin.
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Behie Leo A. (2532 Chicoutimi Dr. Calgary ; Alberta CAX) Berk Dimitrios (1340 University Dr. ; Apt. 207 Calgary ; Alberta CAX) Bishnoi P. Raj (712 Varsity Estates Pl. Calgary ; Alberta CAX) Svrcek Wi, Process for producing hydrogen from hydrogen sulphide in a gas fluidized bed reactor.
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Kettner Roland (Heist DEX) Liermann Norbert (Bergen DEX) Lubcke Torsten (Hambuhren DEX), Process for the reduction of the sulfur content in a gaseous stream.
Berben Pieter H. (Ziest NLX) Geus John W. (Bilthoven NLX), Process for the selective oxidation of gaseous sulfur-containing compounds, hydrogen sulfide in particular, to form elem.
Kiliany Thomas R. (West Chester PA) McWilliams John P. (Woodbury NJ) Pappal David A. (Haddonfield NJ), Reduction of sulfur content in a gaseous stream.
Li Kuo-Tseng (Taichung TWX) Huang Min-Ya (Taichung TWX) Cheng Wen-Da (Taichung TWX), Selective oxidation of hydrogen sulfide in the presence of bismuth-based catalysts.
Bouyanov Roman A. (Novssibirsk RUX) Tsyboulesky Albert M. (Moscou RUX) Klevtsov Dimitri P. (Novossibirsk RUX) Mourine Vladimir I. (Moscou RUX), Vanadium catalysts and desulfurization of sulfur compound-containing gases therewith.
Harada, Masahiro; Honjo, Shintaro; Susaki, Makoto; Ishida, Kazuo; Nagano, Hajime; Okino, Susumu; Iida, Kozo; Johana, Akira, Apparatus for treating COS for gas produced by gasification and method for treating COS.
Burba, III, John L.; Hassler, Carl R.; O'Kelley, C. Brock; Lupo, Joseph A.; Pascoe, Joseph R., Apparatus for treating a flow of an aqueous solution containing arsenic.
Keller, Alfred E.; Ramani, Sriram; Hatcher, Nathan A.; Allison, Joe D.; Lusk, Steven E.; Swinney, Larry D.; Kirkendall, Kerri J.; Torres, Gilbert E.; Stewart, Paul D.; Pruitt, Terry D., Compact sulfur recovery plant and process.
Milam, Stanley Nemec; Lauritzen, Ann Marie; Reynolds, Michael Anthony; Paruchuri, Eswarachandra Kumar; Wellington, Scott Lee, Method of processing feed streams containing hydrogen sulfide.
Milam, Stanley Nemec; Lauritzen, Ann Marie; Reynolds, Michael Anthony; Paruchuri, Eswarachandra Kumar; Wellington, Scott Lee, Method of producing sulfur dioxide.
Keller, Alfred E.; Allison, Joe D.; Ramani, Sriram; Pruitt, Terry D., Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas stream.
Keller, Alfred E.; Ramani, Sriram; Allison, Joe D.; Pruitt, Terry D., Short contact time catalytic sulfur recovery system for removing H2S from a waste gas stream.
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