Process for stabilizing dewaxed distillate oils

Details Process for stabilizing dewaxed distillate oils Process for stabilizing dewaxed distillate oils

1981-08-28

1984-10-23

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Gum or gum former removal

208255, 208 60, 208 70, C10G 6900, C10G 5506, C10G 6906

Patent

active

044787090

ABSTRACT:
A method for reducing the pour point of a hydrocarbon oil which comprises contacting said oil under dewaxing conditions with a zeolite dewaxing catalyst thereby forming a dewaxed oil that contains olefins, and contacting said dewaxed oil and said contained olefins with a solid acidic catalyst under conditions effective to increase the stability of said oil.

REFERENCES:
patent: 3755143 (1973-08-01), Hosoi et al.
patent: 3928171 (1975-12-01), Yan et al.
patent: 3956102 (1976-05-01), Chen et al.
patent: 4178228 (1979-12-01), Chang
patent: 4181597 (1980-01-01), Yan et al.
patent: 4208268 (1980-06-01), Sato et al.
patent: 4211640 (1980-07-01), Garwood et al.
patent: 4361477 (1982-11-01), Miller
patent: 4443327 (1984-04-01), Shihabi et al.

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