Catalytic dewaxing of lube basestock raffinates in contact with

Details Catalytic dewaxing of lube basestock raffinates in contact with Catalytic dewaxing of lube basestock raffinates in contact with

1995-11-03

1997-02-18

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 27, 208108, 208109, 208110, C10G 7344

Patent

active

056038224

ABSTRACT:
Raffinate is catalytically hydrodewaxed to lube basestock in a mixture containing between 0.01 and 1 weight percent of pour point depressants comprising the copolymer residue of a mixture of 1-alkene comonomers selected from the group consisting of C.sub.3 -C.sub.28 1-alkenes. The mixture is contacted with hydrogen and shape selective metallosilicate catalyst particles under mild hydrodewaxing conditions to produce an increased yield of lube basestock having a pour point below -25.degree. F. and viscosity index greater than 100.

REFERENCES:
patent: 3903003 (1975-09-01), Murphy et al.
patent: 4018695 (1977-04-01), Heilman et al.
patent: 4827037 (1989-05-01), Doumaux, Jr.
patent: 4827064 (1989-05-01), Wu
patent: 5157177 (1992-10-01), Pelrine et al.
patent: 5488191 (1996-01-01), Chu et al.

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