Process for producing a high quality lube oil stock

Details Process for producing a high quality lube oil stock Process for producing a high quality lube oil stock

1986-06-02

1988-05-10

Sneed, Helen M. S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 18, 208 89, 208109, 208111, 208216R, 208217, 208254H, C10G 6512

Patent

active

047433558

ABSTRACT:
A waxy hydrocarbon feedstock is converted into a high quality lube oil stock of reduced pour point by hydrodewaxing the feedstock in the presence of molecular hydrogen and a hydrodewaxing catalyst under conditions such that the pour point of the feedstock is reduced by selectively converting waxy paraffins into lower molecular weight hydrocarbons. At least a portion of the effluent from the hydrodewaxing zone is then passed to a hydrocracking zone where it is contacted with a hydrocracking catalyst under conditions such that a further reduction in pour point is effected and the overall conversion of components boiling above about 650.degree. F. to components boiling at or below about 650.degree. F. in the hydrodewaxing and hydrocracking steps combined is no more than about 20 percent by volume, preferably no more than about 10 percent by volume.

REFERENCES:
patent: 3242068 (1966-03-01), Paterson
patent: 3251902 (1966-05-01), Garwood et al.
patent: 3267021 (1966-08-01), Gould
patent: 3277081 (1966-10-01), Plank et al.
patent: 3312615 (1967-04-01), Cramer et al.
patent: 3444071 (1969-05-01), Van Zijll Langhout
patent: 3487005 (1969-12-01), Egan et al.
patent: 3542670 (1970-11-01), Erickson et al.
patent: 3617483 (1971-11-01), Child et al.
patent: 3684691 (1972-08-01), Arey, Jr. et al.
patent: 3700585 (1972-10-01), Chen et al.
patent: 3729521 (1973-04-01), Gutberlet et al.
patent: 3781199 (1973-12-01), Ward
patent: 3783124 (1974-01-01), Ruben et al.
patent: 3788972 (1974-01-01), Henry et al.
patent: 3790472 (1974-02-01), White
patent: 3835027 (1974-09-01), Ward
patent: 3838040 (1974-09-01), Ward
patent: 3853742 (1974-12-01), Ward
patent: 3880746 (1975-04-01), Bennett et al.
patent: 3894938 (1975-07-01), Gorring et al.
patent: 3897327 (1975-07-01), Ward
patent: 3909450 (1975-09-01), O'Hara
patent: 3926780 (1975-12-01), Ward
patent: 3929672 (1975-12-01), Ward
patent: 3945943 (1976-03-01), Ward
patent: 3992283 (1976-11-01), Hutchings
patent: 3997618 (1976-12-01), Cornely et al.
patent: 4002698 (1977-01-01), Kaeding
patent: 4061724 (1977-12-01), Grose et al.
patent: 4062809 (1977-12-01), Ward
patent: 4085068 (1978-04-01), Gallagher et al.
patent: 4089775 (1978-05-01), Berger et al.
patent: 4097365 (1978-06-01), Ward
patent: 4104294 (1978-08-01), Grose et al.
patent: 4115248 (1978-09-01), Mulaskey
patent: 4120825 (1978-10-01), Ward
patent: 4121996 (1978-10-01), Hilfman
patent: 4153540 (1979-05-01), Gorring et al.
patent: 4175114 (1979-11-01), Plank et al.
patent: 4179356 (1979-12-01), O'Hara et al.
patent: 4229282 (1980-10-01), Peters et al.
patent: 4238316 (1980-12-01), Mooi et al.
patent: 4292166 (1981-09-01), Gorring et al.
patent: 4294687 (1981-10-01), Pinaire et al.
patent: 4309275 (1982-01-01), Mulaskey
patent: 4310440 (1982-01-01), Wilson et al.
patent: 4342641 (1982-08-01), Reif et al.
patent: 4361477 (1982-11-01), Miller
patent: 4414097 (1983-11-01), Chester et al.
patent: 4419271 (1983-12-01), Ward
patent: 4428862 (1984-01-01), Ward et al.
patent: 4431517 (1984-02-01), Nevitt et al.
patent: 4437975 (1984-03-01), Gillespie et al.
patent: 4517074 (1985-05-01), Ward
patent: 4597854 (1986-07-01), Penick
patent: 4648958 (1987-03-01), Ward

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