초록 ▼

Middle distillate fuel additives, especially diesel fuel additives, are disclosed which improve one or more cold flow properties of said fuel such as cetane, pour point, wax formation and anti-icing characteristics. The additives comprise a cold flow improver, preferably a vinyl acetate-ethylene cop

Middle distillate fuel additives, especially diesel fuel additives, are disclosed which improve one or more cold flow properties of said fuel such as cetane, pour point, wax formation and anti-icing characteristics. The additives comprise a cold flow improver, preferably a vinyl acetate-ethylene copolymer, a cetane improver comprising paraffinic nitrate or a mixture of nitrates, an anti-icer comprising an aliphatic alcohol or a cyclic aliphatic alcohol having from 1 to 6 carbon atoms or mixtures thereof and an oil soluble aromatic solvent.

대표청구항 ▼

A middle distillate fuel oil having improved cold flow, cetane and anti-icing properties which comprises a mixture of a major amount of a middle distillate hydrocarbon stock and a minor amount of a cold flow additive, wherein said cold flow additive comprises: (A) from 3 to 24 percent by volume of a

A middle distillate fuel oil having improved cold flow, cetane and anti-icing properties which comprises a mixture of a major amount of a middle distillate hydrocarbon stock and a minor amount of a cold flow additive, wherein said cold flow additive comprises: (A) from 3 to 24 percent by volume of an ethylene-vinyl acetate copolymer, a vinyl acetate homopolymer, a vinyl acetate-acrylic ester copolymer, or a vinyl acetate-methacrylic ester copolymer, or a mixture thereof, wherein the alkyl group of the ester contains from 6 to 16 carbon atoms, said copolymers and homopolymers having molecular weights within the range of from 800 to 120,000, (B) from 4 to 41 percent by volume of a paraffinic nitrate, or a mixture of paraffinic nitrates, wherein the paraffinic group contains from 4 to 16 carbon atoms, (C) from 2 to 15 percent by volume of an aliphatic alcohol having from 1 to 6 carbon atoms, or a mixture thereof, and (D) from 12 to 91 percent by volume of an aromatic solvent having a gravity within the range of from 25°to 32°API, and boils within the range of from 275°to 550°F.