FIELD: oil industry.
SUBSTANCE: composition for prevention of asphalt-resin-paraffin precipitations on basis of liquid pyrolysis products, used in amount of 0.03-0.05 of oil mass, has following composition, %: dark oil polymer resin, received by oxidizing polymerization of heavy pyrolysis resin during blowing of air with flow 17-23 hour-1, temperature 145-155°C in presence of cobalt salts during 2-2.5 hours, 30-35, alkylaromatic hydrocarbons 65-70.
EFFECT: higher efficiency.
3 ex, 3 tbl
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Authors
Dates
2005-04-10—Published
2003-12-22—Filed