Process for the regeneration of metallic catalysts
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-021/20
B01J-023/94
B01J-023/96
C07C-001/04
출원번호
US-0039130
(1979-05-15)
발명자
/ 주소
Katzer James R. (Newark DE) Windawi Hassan (Newark DE)
출원인 / 주소
University of Delaware (Newark DE 02)
인용정보
피인용 횟수 :
9인용 특허 :
4
초록▼
A method for the regeneration of metallic hydrogenation catalysts from the class consisting of Ni, Rh, Pd, Ir, Pt and Ru poisoned with sulfur, with or without accompanying carbon deposition, comprising subjecting the catalyst to exposure to oxygen gas in a concentration of about 1-10 ppm. intermixed
A method for the regeneration of metallic hydrogenation catalysts from the class consisting of Ni, Rh, Pd, Ir, Pt and Ru poisoned with sulfur, with or without accompanying carbon deposition, comprising subjecting the catalyst to exposure to oxygen gas in a concentration of about 1-10 ppm. intermixed with an inert gas of the group consisting of He, A, Xe, Kr, N2 and air substantially free of oxygen to an extent such that the total oxygen molecule throughout is in the range of about 10 to 20 times that of the hydrogen sulfide molecular exposure producing the catalyst poisoning while maintaining the temperature in the range of about 300°to 500°C.
대표청구항▼
A method for the regeneration of a metallic hydrogenation catalyst which had been used as a methanation catalyst for the reaction of CO with H2 from the class consisting of Ni, Rh, Pd, Ir, Pt and Ru poisoned with sulfur, with or without accompanying carbon deposition, comprising subjecting said cata
A method for the regeneration of a metallic hydrogenation catalyst which had been used as a methanation catalyst for the reaction of CO with H2 from the class consisting of Ni, Rh, Pd, Ir, Pt and Ru poisoned with sulfur, with or without accompanying carbon deposition, comprising subjecting said catalyst to exposure to oxygen gas in a concentration of about 1-10 ppm. intermixed with an inert gas of the group He, A, Xe, Kr, N2 and air substantially free of oxygen to an extent such that the total oxygen molecule throughout is in the range of about 10 to 20 times that of the hydrogen sulfide molecular exposure producing the catalyst poisoning while maintaining the temperature in the range of about 300°to 500°C. until said regeneration is completed. The method of claim 1 wherein the gas pressure is maintained in the general atmospheric pressure range.
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이 특허에 인용된 특허 (4)
Schoofs Richard J. (Moraga CA) Nordhausen Lloyd J. (Grand Junction CO) Dugdale Lee A. (Grand Junction CO), Catalyst regeneration.
Dolan Michael J. (Laurel Springs NJ) McGovern Stephen J. (Deptford NJ) Owens Peter J. (West Deptford NJ), Inert gas enrichment in FCC unit regenerators.
Tsunoda Yoshitoshi (Komae JPX) Tomita Shimpei (Kurashiki JPX) Miyazawa Chihiro (Kurashiki JPX) Omori Yasuro (Okayama JPX), Method for the recovery of Group VIII noble metal solid complexes.
Hughes Thomas R. (Orinda CA), Sulphur decontamination of conduits and vessels communicating with hydrocarbon conversion catalyst reactor during in sit.
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