Petrochemical additive and preparation method thereof

The invention provides a petrochemical auxiliary agent and a preparation method thereof, and belongs to the technical field of petrochemical industry. Comprising a polymer emulsifier, a combustion improver, a fuel oil cleaning agent and a solvent, and the polymer emulsifier is prepared from allyl polyoxyalkyl epoxy ether, octadecyl dimethyl allyl ammonium chloride, acrylamide and 2-acrylamide-2-methylpropanesulfonic acid. The prepared petrochemical auxiliary can improve the combustibility of gasoline and diesel oil, emulsified diesel oil can be prepared by adding the auxiliary into the diesel oil and uniformly mixing, the emulsifying effect is good, diesel oil layering is avoided, the fuel combustion characteristic and emission characteristic are superior to those of common diesel oil, particularly, smoke intensity emission is obviously reduced by 95% or above, an engine is not damaged, and the environment is protected. The diesel oil additive does not increase oil consumption, has cleanliness, oxidation resi