05785860 is referenced by 18 patents and cites 11 patents.

A large pore (500.degree.-2000.degree. A) ceramic membrane is used to separate asphaltenes from heavy crude oil. Permeate is recycled to the feed for an initial period, during which the pores are deliberately fouled to reduce pore size. This reduction eventually levels off, at which point recycling is terminated and ultrafiltration is continued thereafter at good flux rates with effective asphaltenes removal.

Title
Upgrading heavy oil by ultrafiltration using ceramic membrane
Application Number
8/710254
Publication Number
5785860
Application Date
September 13, 1996
Publication Date
July 28, 1998
Inventor
Kevin J Smith
Delta
CA
Agent
Millen White Zelano & Branigan P C
Assignee
University of British Columbia
CA
IPC
B01D 61/00
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