Biodegradable high performance hydrocarbon base oils

Details Biodegradable high performance hydrocarbon base oils Biodegradable high performance hydrocarbon base oils

1998-07-22

2000-08-01

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By isomerization

C10G 5700, C10G 4720, C10G 4700

Patent

active

060969407

ABSTRACT:
Discloses novel biodegradable high performance hydrocarbon base oils useful as lubricants in engine oil and industrial compositions, and process for their manufacture. A waxy, or paraffinic feed, particularly a Fischer-Tropsch wax, is reacted over a dual function catalyst to produce hydroisomerization and hydrocracking reactions, at 700.degree. F.+ conversion levels ranging from about 20 to 50 wt. %, preferably about 25-40 wt. %, sufficient to produce a crude fraction, e.g., a C.sub.5 -1050.degree. F.+ crude fraction, containing 700.degree. F.+ isoparaffins having from about 6.0 to about 7.5 methyl branches per 100 carbon atoms in the molecule. The methyl paraffins containing crude fraction is topped via atmospheric distillation to produce a bottoms fraction having an initial boiling point between about 650.degree. F. and 750.degree. F. which is then solvent dewaxed, and the dewaxed oil is then fractionated under high vacuum to produce biodegradable high performance hydrocarbon base oils.

REFERENCES:
patent: 3365390 (1968-01-01), Egan et al.
patent: 4919786 (1990-04-01), Hammer et al.
patent: 5466364 (1995-11-01), Kaul et al.
patent: 5833839 (1998-11-01), Wittenbrink et al.

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