solvent deasphalting


solvent deasphalting

[′säl·vənt dē′as‚fȯlt·iŋ] (chemical engineering) A petroleum refinery process used to remove asphaltic and resinous materials from reduced crude oils, lubricating oil stocks, gas oils, or middle distillates through the extractive or precipitant action of solvents. Also known as solvent deresining.