propane deasphalting


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propane deasphalting

[′prō‚pān dē′as‚fȯld·iŋ]
(chemical engineering)
Petroleum-refinery solvent process using propane to remove and precipitate asphalt from petroleum stocks, such as for lubricating oils.
References in periodicals archive ?
Results were lower in the first quarter of 2007 compared to the first quarter of 2006 primarily due to the shutdown of Valero Energy's McKee refinery in the Texas Panhandle from complications of a fire that started at their propane deasphalting unit in mid-February and the impact of planned turnarounds at several of the refineries served by NuStar Energy L.
b) Carryout Process Modifications at Propane Deasphalting and MEK Dewaxing Units of lube oil refinery to improve lube oil yields by 2400 tons/year and reduction in energy consumption by 5000 tons/year equivalent of F.