Low pour point crude oil compositions

Details Low pour point crude oil compositions Low pour point crude oil compositions

1978-10-10

1979-12-18

Douglas, Winston A.

Fluid handling

Processes

Affecting flow by the addition of material or energy

44 62, 44 70, F17D 117

Patent

active

041789512

ABSTRACT:
A crude oil composition having a low pour point is prepared by incorporating into a waxy crude oil an effective pour depressant amount of an oil-soluble polymer, such as vinyl acetate-ethylene-propylene or butylene terpolymer or a graft copolymer in which propylene or butylene is grafted onto an ethylene-vinyl acetate copolymer backbone or basic chain. The terpolymer may be added with mixing directly to the heated crude or in hydrocarbon solution such as a solution of the terpolymer in a middle distillate or kerosene. In another aspect, this invention relates to a process for the pipeline transportation of the crude oil compositions previously described.

REFERENCES:
patent: 3048479 (1962-08-01), Ilnyckyj et al.
patent: 3462249 (1969-08-01), Tunkel
patent: 3467597 (1969-09-01), Tunkel et al.
patent: 3675671 (1972-07-01), Sweeney
patent: 3870063 (1975-03-01), Hayward
patent: 4127140 (1978-11-01), Sweeney

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