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Title: Membrane separation of hydrocarbons

Abstract

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.

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

Citation Formats

Chang, Y A, Kulkarni, S S, and Funk, E W. Membrane separation of hydrocarbons. United States: N. p., 1986. Web.
Chang, Y A, Kulkarni, S S, & Funk, E W. Membrane separation of hydrocarbons. United States.
Chang, Y A, Kulkarni, S S, and Funk, E W. Tue . "Membrane separation of hydrocarbons". United States.
@article{osti_5598552,
title = {Membrane separation of hydrocarbons},
author = {Chang, Y A and Kulkarni, S S and Funk, E W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {6}
}