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U.S. Department of Energy
Office of Scientific and Technical Information

Process for separating a fluid feed mixture containing hydrocarbon oil and an organic solvent

Patent ·
OSTI ID:5952060
This patent describes a process for separating a fluid feed mixture containing a hydrocarbon lubricating base oil and an organic solvent selected from furfural and mixture of toluene and methyl ethyl ketone which process comprises subjecting the fluid feed mixture to reverse osmosis in a reverse osmosis zone with a membrane comprising a layer of a silicone polymer. The process provides a retentate stream having an organic solvent content higher than the feed mixture, and a permeate stream having an organic solvent content less than the amount of solvent in the feed mixture, and permits recovering hydrocarbon oil from the permeate stream.
Assignee:
Shell Oil Co., Houston, TX
Patent Number(s):
US 4810366
OSTI ID:
5952060
Country of Publication:
United States
Language:
English