Hydrodesulfurization over catalysts comprising chalcogenides of group VIII prepared by low temperature precipitation fro
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-045/10
C10G-045/52
출원번호
US-0124956
(1980-02-26)
발명자
/ 주소
Chianelli Russell R. (North Branch NJ) Pecoraro Theresa (Middletown NJ)
출원인 / 주소
Exxon Research & Engineering Co. (Florham Park NJ 02)
인용정보
피인용 횟수 :
5인용 특허 :
2
초록▼
A method is described for the preparation of chalcogenides of ruthenium, rhodium, osmium and iridium transition metals of the Periodic Table of the Elements which comprises mixing in the absence of an aqueous solvent a Group VIII transition metal salt with a source of chalcogenide, said chalcogenide
A method is described for the preparation of chalcogenides of ruthenium, rhodium, osmium and iridium transition metals of the Periodic Table of the Elements which comprises mixing in the absence of an aqueous solvent a Group VIII transition metal salt with a source of chalcogenide, said chalcogenide being selected from the group consisting of sulfur, selenium, tellurium and mixtures thereof, yielding a precipitate of the formula MXy wherein M is selected from the group consisting of ruthenium, rhodium, osmium and iridium, X is sulfur, selenium, tellurium and mixtures thereof and y is a number ranging from about 0.1 to about 3, preferably 0.1 to about 2.5. By the practice of the nonaqueous synthesis technique, Group VIII chalcogenides are prepared which are finely divided, have a high surface area, small particle size and small crystallite size which are also free of excess sulfur, water and/or hydrolysis products. This technique also permits the preparation of a heretofore unobtainable composition, layered stoichiometric osmium disulfide. The precipitates which result as a consequence of the instant process may be cleansed of any anion salt coproduct by any technique common to the art, pumping under vacuum being one such technique, washing with a suitable solvent being another. Compounds of the formula MXy wherein M, X and y are as defined above, prepared by the low temperature, nonaqueous precipitation technique herein disclosed are superior sulfur-tolerant catalysts in catalytic processes, for example, hydrodesulfurization, hydrodenitrogenation, hydroconversion, hydrogenation.
대표청구항▼
In a process for the hydrodesulfurization of hydrocarbon feed streams containing organic sulfur and nitrogen comprising contacting said feed stream with a catalyst in the presence of hydrogen or a hydrogen donor solvent for a time at a temperature and pressure sufficient to cause the hydrodesulfuriz
In a process for the hydrodesulfurization of hydrocarbon feed streams containing organic sulfur and nitrogen comprising contacting said feed stream with a catalyst in the presence of hydrogen or a hydrogen donor solvent for a time at a temperature and pressure sufficient to cause the hydrodesulfurization of the feed stream, the improvement comprising using as the catalyst a composition of the formula MXy wherein M is ruthenium, rhodium, iridium and osmium, X is a chalcogen selected from the group consisting of sulfur, selenium, tellurium and mixtures thereof and y is a number ranging from about 0.1 to about 3 which composition is prepared by reacting in the absence of aqueous solutions a ruthenium, rhodium, iridium or osmium salt with a source of sulfide, selenide or telluride ion selected from the group consisting of Li2X, K2X, Na2X, LiHX, KHX, NaHX, (NH4)2X, (NH4)HX, (RNH3)2X, (RR1NH2)2X, (R R1R11NH)2X wherein R, R1 and R11 are the same or different and are selected from the group consisting of C1 to C20 alkyl and C6-C20 aryl groups and X is the chalcogen selected from the group consisting of sulfur, selenium and tellurium, at a temperature of from -78°to 400°C.
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이 특허에 인용된 특허 (2)
Whittingham M. Stanley (Fanwood NJ), Chalcogenide battery.
Chianelli Russell R. (North Branch NJ) Pecoraro Theresa A. (Middletown NJ), Method of preparing chalocogenides of group VIII by low temperature precipitation from nonaqueous solution, the products.
Ornelas Gutierrez, Carlos Elias; Alvarez Contreras, Lorena; Farias Mancilla, Jose Rurik; Aguilar Elguezabal, Alfredo, Unsupported and supported non-promoted ruthenium sulfide catalyst with high catalytic activity for hydrocarbon hydrotreatments and its method.
Ornelas Gutierrez, Carlos Elias; Alvarez Contreras, Lorena; Farias Mancilla, Jose Rurik; Aguilar Elguezabal, Alfredo, Unsupported and supported promoted ruthenium sulfide catalyst with high catalytic activity for hydrocarbon hydrotreatments and its method.
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