FIELD: chemistry.
SUBSTANCE: preventive tool includes gas oil fractions of thermal degradation processes of petroleum hydrocarbon feedstock processing as a solvent and a heavy oil residue as a thickening additive. The solvent is a mixture of gas oil fractions of catalytic cracking with a boiling range of 200-340°C and 340-470°C in a ratio of 1:1 in an amount of 80-90 wt %. The thickening additive is the cracking residue of the visbreaking process in an amount of 10-20 wt %, preheated to a temperature of 50-70°C.
EFFECT: invention makes it possible to improve low-temperature properties, reduce the cost of preventive measures, and expand the raw material base.
2 ex
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