The invention relates to the preparation and development of a method for a process for preparing a Poly Methylamine surfactant. The process consists of a mixture of methanol and ethanolamine in a molar ratio ranging from 1.0-0.6 to 3.0-0.4 at a temperature of 45-50° C., resulting in a non-hazardous substance, without toxic effects for human health, at the same time having high-quality cleaning, high- and very low temperature resistance, with surface active agent (surfactant) properties. Used as a fuel additive, reduces harmful exhaust gas emissions to the atmosphere, raises the octane number in gasoline, prevents the formation of ice crystals in diesel fuel.

The invention relates to the preparation and development of a method for a process for preparing a Poly Methylamine surfactant. The process consists of a mixture of methanol and ethanolamine in a molar ratio ranging from 1.0-0.6 to 3.0-0.4 at a temperature of 45-50° C., resulting in a non-hazardous substance, without toxic effects for human health, at the same time having high-quality cleaning, high- and very low temperature resistance, with surface active agent (surfactant) properties. Used as a fuel additive, reduces harmful exhaust gas emissions to the atmosphere, raises the octane number in gasoline, prevents the formation of ice crystals in diesel fuel.

The present disclosure provides a pour point dispersant composition comprising an alkoxylated alkyl amine polyester. The pour point depressant composition may optionally be combined with a solvent and added to a hydrocarbon composition to improve the cold-flow properties of the hydrocarbon composition.

A fuel composition for powering a combustion engine, the composition comprising a liquid base fuel; and a (co)polymer obtainable by (co)polymerizing at least the following monomers: one or more bicyclic (meth)acrylate esters (a); up to 15 wt % of styrene (b); optionally other ethylenically unsaturated monomers that are not monomer (a) or (b); up to a total of 100 wt %, wherein the weight percentages of the monomer are based on the total weight of all of the monomers.

A fuel composition for powering a combustion engine, the composition comprising a liquid base fuel; and a (co)polymer obtainable by (co)polymerizing at least the following monomers: one or more bicyclic (meth)acrylate esters (a); up to 15 wt % of styrene (b); optionally other ethylenically unsaturated monomers that are not monomer (a) or (b); up to a total of 100 wt %, wherein the weight percentages of the monomer are based on the total weight of all of the monomers.

Disclosed are cloud point depressants and methods of making and using them. The disclosed cloud point depressants comprise copolymers of an unsaturated anhydride polymerized with alkyl α-olefins and then contacted with a phenyl alkyl alcohol or alkyl phenol alkoxylate, fatty alcohol and primary or secondary fatty amine to provide a cloud depressant reaction product. When the disclosed reaction products are added to middle distillate fuels or blends of middle distillate fuels with biodiesel, the cloud point depressants inhibit the precipitation of waxes and/or biowaxes in the fuels and the fuels exhibit reduced precipitation, gelling, and/or crystallization when subjected to low or cold temperatures.

This disclosure relates to compositions and methods of making an additized fuel composition comprising a base fuel composition and a randomly branched nitrate composition. The randomly branched nitrate composition includes a plurality of primary nitrate molecules, each molecule therein having an empirical chemical formula of C.sub.nNO.sub.3, wherein C.sub.n is a branched aliphatic moiety which may be the same or different for each molecule, n is an integer selected from the group consisting of 8, 9, 10, 11 and 12, at least one carbon atom in the branched aliphatic moiety being bound to three or more carbon atoms, a branching index ranging from 1.8 to 2.2, and greater than 80% of the branches in the aliphatic moiety being in other than the alpha position. The additized fuel composition may be diesel fuel composition or a gasoline fuel composition.

This disclosure relates to compositions and methods of making an additized fuel composition comprising a base fuel composition and a randomly branched nitrate composition. The randomly branched nitrate composition includes a plurality of primary nitrate molecules, each molecule therein having an empirical chemical formula of C.sub.nNO.sub.3, wherein C.sub.n is a branched aliphatic moiety which may be the same or different for each molecule, n is an integer selected from the group consisting of 8, 9, 10, 11 and 12, at least one carbon atom in the branched aliphatic moiety being bound to three or more carbon atoms, a branching index ranging from 1.8 to 2.2, and greater than 80% of the branches in the aliphatic moiety being in other than the alpha position. The additized fuel composition may be diesel fuel composition or a gasoline fuel composition.

The present invention concerns the use, for lowering the cold filter plugging point of a fuel composition, of one or more crosslinked polymers comprising at least one unit of the following formula (I): in which R.sub.1 represents a hydrogen atom or a methyl group; E represents —O—CO—, or —CO—O— or —NH—CO— or —CO—NH—; and G represents a C.sub.1 to C.sub.34 alkyl group; said copolymer having a crosslinking rate of between 0.5 mol % and 30 mol %. The invention also concerns additive compositions containing such a polymer, and fuel compositions with such polymers as additives, in combination with a cold flow improver (CFI) chosen from the copolymers and terpolymers of ethylene and vinyl and/or acrylic ester(s).

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The present disclosure relates to methods for preparing cyclic acetals from the catalytic transformation of bio-derived aldehydes with 2,3-butanediol. The methods operate in a solvent-free reaction system and provide isolation of the product acetals through phase separation and subsequent decantation. The cyclic acetals exhibit excellent properties for blending with diesel fuel, including increased cetane number and density, and decreased viscosity, freezing point, and soot formation.