Catalytic dewaxing of light and heavy oils in dual parallel reactors
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-065/14
출원번호
US-0171209
(1988-03-16)
발명자
/ 주소
Chester Arthur W. (Cherry Hill NJ) Garwood William E. (Haddonfield NJ) Vartuli James C. (West Chester PA)
출원인 / 주소
Mobil Oil Corporation (New York NY 02)
인용정보
피인용 횟수 :
49인용 특허 :
11
초록▼
Relatively heavy or relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestocks contains a crystalline aluminosilicate zeolite exemplified natural or synthetic ferrierite, ZSM-22, ZSM-23 and ZSM-35 zeolites and/or
Relatively heavy or relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestocks contains a crystalline aluminosilicate zeolite exemplified natural or synthetic ferrierite, ZSM-22, ZSM-23 and ZSM-35 zeolites and/or mixtures thereof. The reactor used for dewaxing the relatively heavy chargestocks contains a crystalline aluminosilicate zeolite exemplified by ZSM-5, ZSM-11 zeolites, ZSM-5/ZSM-11 intermediates and/or mixtures thereof.
대표청구항▼
An integrated process for catalytically dewaxing relatively light petroleum chargestocks, characterized by a 50% boiling point of less than about 850°F. and a kinematic viscosity at 100°C. of less than about 9 centistokes, in a first dewaxing reactor, and relatively heavy petroleum chargestocks, cha
An integrated process for catalytically dewaxing relatively light petroleum chargestocks, characterized by a 50% boiling point of less than about 850°F. and a kinematic viscosity at 100°C. of less than about 9 centistokes, in a first dewaxing reactor, and relatively heavy petroleum chargestocks, characterized by a 50% boiling point of greater than about 850°F. and a kinematic viscosity at 100°C. of greater than about 9 centistokes, in a second dewaxing reactor, comprising: contacting the relatively light petroleum chargestocks in the first dewaxing reactor with a crystalline aluminosilicate zeolite having pore openings defined by (1) a ratio of sorption of n-hexane to o-xylene, on a volume percent basis, of greater than about 3, which sorption is determined at a P/Po of 0.1 and at a temperature of 50°C. for n-hexane and 80°C. for o-xylene, and (2) by the ability of selectively cracking 3-methylpentane (3MP) in preference to the doubly branched 2,3-dimethylbutane, (DMB) at 1000°F. and 1 atmosphere pressure from a 1/1/1 weight ratio mixture of n-hexane/3-methyl-pentane/2,3-dimethylbutane, with the ratio of rate constants k3MP/kDMB determined at a temperature of 1000°F. being in excess of about 2; simultaneously maintaining under regeneration conditions, in a second dewaxing reactor, a crystalline aluminosilicate zeolite having pore openings defined by (1) a ratio of sorption of n-hexane to o-xylene, on a volume percent basis, of less than about 3, which sorption is determined at a P/Po of 0.1 and at a temperature of 50°C. for n-hexane and 80°C. for o-xylene, (2) by the ability of selectively cracking 3-methylpentane (3MP) in preference to the doubly branched 2,3-dimethylbutane (DMB) at 1000°F. and 1 atmosphere pressure from a 1/1/1 weight ratio mixture of n-hexane/3-methyl-pentane/2,3-dimethylbutane, with the ratio of rate constants k3MP/kDMB determined at a temperature of 1000°F. being less than about 2, and (3) a Constraint Index value of greater than about 1; subsequently contacting said crystalline aluminosilicate zeolite in said second reactor with said relatively heavy petroleum chargestock; and hydrotreating the effluent from said first and second dewaxing reactors in a downstream hydrotreating reactor.
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이 특허에 인용된 특허 (11)
Shen Roderick C. (Belle Mead NJ), Cascade catalytic dewaxing/hydrodewaxing process.
Chester Arthur W. (Cherry Hill NJ) Garwood William E. (Haddonfield NJ) Vartuli James C. (West Chester PA), Catalytic process for manufacture of low pour lubricating oils.
Bowes Emmerson (Woodstown NJ) Pelrine Bruce P. (Trenton NJ), Preparation of natural ferrierite hydrocracking catalyst and hydrocarbon conversion with catalyst.
Bull, Lucy M.; Kuehne, Donald L.; Schinski, William L.; Heydenrich, Philippus Rudolf; Moore, Jr., Richard O.; Beukes, Quintin John; Bacco Rodriquez, Gianni Guilio Eligio, Acid treatment of a fischer-tropsch derived hydrocarbon stream.
Jiang, Zhaozhong; Helton, Terry Eugene; Partridge, Randall David; Hoglen, Larry E., Dual catalyst system for hydroisomerization of Fischer-Tropsch wax and waxy raffinate.
Brandes Dee Anne,CAX ; Zinkie David N.,CAX ; Alward Sandra J.,CAX, Method for upgrading waxy feeds using a catalyst comprising mixed powered dewaxing catalyst and powdered isomerization.
Rosenbaum,John M.; Lok,Brent K.; Pudlak,Joseph M.; Ziemer,James N.; Farina,Robert J., Polyalphaolefin and fischer-tropsch derived lubricant base oil lubricant blends.
Krishna, Kamala R.; Ziemer, James N.; Rainis, Andrew; Biscardi, Joseph A.; Harris, Thomas V., Process and catalyst system for improving dewaxing catalyst stability and lubricant oil yield.
Cody,Ian A.; Murphy,William J.; Hantzer,Sylvain; Larkin,David W.; Gallagher, Jr.,John E.; Kim,Jeenok T., Process for preparing basestocks having high VI.
Cody,Ian A.; Murphy,William J.; Hantzer,Sylvain; Larkin,David W.; Gallagher, Jr.,John E.; Kim,Jeenok T., Process for preparing basestocks having high VI using oxygenated dewaxing catalyst.
Cody,Ian A.; Murphy,William J.; Hantzer,Sylvain; Larkin,David W.; Gallagher, Jr.,John E.; Kim,Jeenok T., Process for preparing basestocks having high VI using oxygenated dewaxing catalyst.
Callera Gilberto (Rome ITX) Cerase Antonio (Rome ITX) Vinti Luciano (Rome ITX) D\Alberton Andrea (Venice ITX), Process for the flexible production of high-quality gas oil.
Miller,Stephen J.; O'Rear,Dennis J., Production of low sulfur, moderately aromatic distillate fuels by hydrocracking of combined Fischer-Tropsch and petroleum streams.
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