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Gas phase fractionation method using porous ceramic membrane

Patent ·
OSTI ID:870271
 [1];  [1]
  1. Madison, WI
+ Show Author Affiliations

Flaw-free porous ceramic membranes fabricated from metal sols and coated onto a porous support are advantageously used in gas phase fractionation methods. Mean pore diameters of less than 40 .ANG., preferably 5-20 .ANG. and most preferably about 15 .ANG., are permeable at lower pressures than existing membranes. Condensation of gases in small pores and non-Knudsen membrane transport mechanisms are employed to facilitate and increase membrane permeability and permselectivity.

Assignee:
Wisconsin Alumni Research Foundation (Madison, WI)
Patent Number(s):
US 5487774
OSTI ID:
870271
Country of Publication:
United States
Language:
English

References (2)

Separation of alcohol/water gaseous mixtures by thin ceramic membrane. journal January 1986
Titania and alumina ceramic membranes journal December 1988

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