Catalytic dewaxing process

Details Catalytic dewaxing process Catalytic dewaxing process

1985-01-09

1987-02-10

Hearn, Brian E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208216R, 208217, C10G 4508, C10G 4720

Patent

active

046421769

ABSTRACT:
An improved hydrodewaxing process which produces a dewaxed feedstock having a pour point of at least minimum specification and also eliminates the need for conventional hydrotreating subsequent to hydrodewaxing to render the dewaxed stock stable to light and oxidation and to reduce the aging rate of the catalyst is described and includes catalytically hydrodewaxing the feedstock under conditions equivalent to a pressure of about 400 psig, a maximum temperature of about 620.degree. F. and a maximum space velocity of 1.0 LHSV, in the presence of a catalyst comprising a zeolite and a metal of Group VIII alone or admixed with an element of Group VI.

REFERENCES:
patent: 3968024 (1976-07-01), Gorring et al.
patent: 3989617 (1976-11-01), Yan
patent: 4229282 (1980-10-01), Peters et al.
patent: 4395327 (1983-07-01), Pelrine
patent: 4428862 (1984-01-01), Ward et al.
patent: 4431519 (1984-02-01), LaPierre et al.

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