Heavy fuel-oil compositions having an improved stability under s

Details Heavy fuel-oil compositions having an improved stability under s Heavy fuel-oil compositions having an improved stability under s

1979-07-19

1981-04-28

Douglas, Winston A.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 70, 44 72, C10L 122

Patent

active

042643341

ABSTRACT:
Heavy fuel-oil composition of improved stability under storage conditions, comprising a petroleum residue obtained from a straight run distillation, a vacuum distillation or a viscosity reduction of petroleum materials, a diluent such as a steam-cracking residue, a viscosity reduction gas oil or a mixture thereof, and a minor proportion of a sequenced copolymer formed of two polymeric sequences (A) and (B) wherein sequence (A) is obtained by polymerization of one or more conjugated diolefins such as 1,3-butadiene and isoprene and sequence (B) is obtained by polymerization of acrylonitrile or an alkylacrylonitrile such as methacrylonitrile, said sequenced copolymer having an average molecular weight by number of from 1,000 to 20,000.

REFERENCES:
patent: 3687148 (1972-08-01), Kruka et al.

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