Catalytic dewaxing process for producing lubricating oils

Details Catalytic dewaxing process for producing lubricating oils Catalytic dewaxing process for producing lubricating oils

1991-12-23

1995-10-10

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 97, C10G 4716

Patent

active

054568200

ABSTRACT:
A process for making a lubricant oil of low pour point which comprises a) catalytically dewaxing a lube boiling range feedstock in the presence of hydrogen over a dewaxing catalyst comprising an intermediate pore size zeolite in the hydrogen or decationized form during a dewaxing cycle in which the temperature is progressively increased to maintain a substantially constant product pour point to produce a lubricant oil product of improved oxidation stability. The feedstock is sequenced during a dewaxing cycle from a heavy feed to a lighter feed in order to avoid contacting the lighter feed with the catalyst in its most active conditions.

REFERENCES:
patent: 3700585 (1972-10-01), Chen
patent: 3968024 (1976-07-01), Gorring et al.
patent: 3980550 (1976-09-01), Gorring et al.
patent: 3989617 (1976-11-01), Yan
patent: 4137148 (1979-01-01), Gillespie et al.
patent: 4181598 (1980-01-01), Gillespie
patent: 4222855 (1980-09-01), Pelrine
patent: 4259170 (1981-03-01), Graham
patent: 4376036 (1983-03-01), Garwood
patent: 4414097 (1983-11-01), Chester
patent: 4437975 (1984-03-01), Gillespie et al.
patent: 4437976 (1984-03-01), Oleck et al.
patent: 4446007 (1984-05-01), Smith
patent: 4549955 (1985-10-01), Shih
patent: 4574043 (1986-03-01), Chester et al.
patent: 4872968 (1989-10-01), Bowes

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