DEPOSIT REDUCTION IN GASOLINE FRACTIONATION, WATER COOLING SYSTEM AND PRODUCT RECOVERY SECTION Russian patent published in 2014 - IPC C10G75/04 G05D11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of selecting a solvent or mixture of solvents useful for reducing deposit formation, cleaning existing deposits, and/or decreasing the rate of deposit formation. The invention relates to a method of dispersing contaminants in a liquid hydrocarbon stream, wherein the method includes steps of determining the nature of contaminants in the liquid hydrocarbon stream by measuring flow rate of the liquid hydrocarbon and estimating the ratio of hydrogen to carbon in the liquid hydrocarbon stream based on the measured value; selecting a solvent or a mixture of solvents suitable to disperse the contaminants based on the determined nature, wherein the ratio of hydrogen to carbon in the selected solvent or mixture of solvents is less than the estimated ratio of hydrogen to carbon in the liquid hydrocarbon stream; and contacting the contaminants with the selected solvent or mixture of solvents.

EFFECT: efficient dispersion and removal of contaminants from equipment.

18 cl, 2 dwg