Membrane separation of hydrocarbons

Patent · Tue Jun 17 00:00:00 EDT 1986

OSTI ID:5598552

Chang, Y A; Kulkarni, S S; Funk, E W

A process is described for the separation of a deasphalted crude oil and a light hydrocarbon solvent from a mixture thereof comprising passing the mixture across a polysulfone membrane at separation conditions whereby the light hydrocarbon solvent is recovered as the permeate and the deasphalted crude oil is recovered as the retentate. The membrane is prepared by a process wherein the polysulfone polymer is initially contacted in the form of a solution with a sulfonation agent under conditions suitable to achieve a degree of sulfonation of the polysulfone of from about 15 to about 50 percent, with the polysulfone subsequently being solution cast to form the membrane.

• Assignee: UOP, Inc., Des Plaines, IL
• Patent Number(s): US 4595507
• OSTI ID: 5598552
• Resource Relation: Patent File Date: Filed date 3 Aug 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROCARBONS
SEPARATION PROCESSES
PETROLEUM
DEASPHALTING
MEMBRANES
MIXTURES
POLYMERS
QUANTITY RATIO
SULFONATION
SULFONES
CHEMICAL REACTIONS
DISPERSIONS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
020400* - Petroleum- Processing
400105 - Separation Procedures