Edward D Funk

US Patent:

46171266, Oct 14, 1986

Filed:

Aug 3, 1984

Appl. No.:

6/637638

Inventors:

Edward W. Funk - Highland Park IL
Sudhir S. Kulkarni - Hoffman Estates IL
Y. Alice Chang - Des Plaines IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01D 1300

US Classification:

210651

Abstract:

Mixtures of heavy oils and light hydrocarbons may be separated by passing the mixture over a polymeric membrane which comprises a polymer capable of maintaining its integrity in the presence of hydrocarbon compounds at temperature ranging from about ambient to about 100. degree. C. and pressures ranging from about 50 to about 1000 psi. The membranes which possess pore sizes ranging from about 10 to about 500 Angstroms are cast from a solvent solution and recovered.

US Patent:

45955077, Jun 17, 1986

Filed:

Aug 3, 1984

Appl. No.:

6/637639

Inventors:

Y. Alice Chang - Des Plaines IL
Sudhir S. Kulkarni - Hoffman Estates IL
Edward W. Funk - Highland Park IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01D 1300

US Classification:

210638

Abstract:

Mixtures of heavy oils and light hydrocarbons may be separated by passing the mixture through a polymeric membrane. The membrane which is utilized to effect the separation comprises a polymer which is capable of maintaining its integrity in the presence of hydrocarbon compounds and which has been modified by being subjected to the action of a sulfonating agent. Sulfonating agents which may be employed will include fuming sulfuric acid, chlorosulfonic acid, sulfur trioxide, etc. , the surface or bulk modified polymer will contain a degree of sulfonation ranging from about 15 to about 50%. The separation process is effected at temperatures ranging from about ambient to about 100. degree. C. and pressures ranging from about 50 to about 1000 psig.