FIELD: oil, gas and coke-chemical industry.
SUBSTANCE: invention relates to separation of water-oil emulsions using demulsifiers. Disclosed is a method of increasing the efficiency of composite demulsifiers based on polyesters and block copolymers, which consists in the fact that a mixture of reagents based on ethoxylated resins is added to them to increase their efficiency in the state of a liquid nanocomposite with particle size from 1 to 100 nm in amount of 5–40 wt.% in a mixture, converting the entire mixture into a nanostructure, wherein the optimum composition of the mixture with the demulsifier is determined from the minimum particle size in range from 1 to 100 nm in the obtained mixtures while varying the mass ratio of the reagents being mixed, and a liquid nanocomposite for oil dehydration, which realizes the proposed method.
EFFECT: increased efficiency of demulsifiers, which provides high quality of oil in a wide range of temperatures.
2 cl, 5 dwg, 3 tbl, 8 ex
