The application discloses an oil-based water-
alcohol-ester multi-element
microemulsion fuel additive and a preparation method and application thereof, and belongs to the technical field of fuel additives. The additive is prepared by compounding
fuel oil as a continuous phase, a water-
alcohol-ester mixture as a dispersed phase, constructing an interface film by using
phospholipid, in-situ reaction of
oleic acid and diethyldiethanolamine, and combination of high-pressure atomization and
magnetic field synergistic stirring according to a specific ratio. The application has excellent stability, a high content of polar components, can significantly reduce
nitrogen oxide,
hydrocarbon,
carbon monoxide and particulate matter emissions, saves oil, protects the engine, improves power, and is suitable for multiple scenes in multiple versions. The
white oil version is suitable for field kitchens of troops, and has economic,
environmental protection and special application values.