Method of enriching chlorine gas
AssigneePPG Industries Ohio, Inc.
InventorPeter C. Foller
Life of this patent
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Abstract
A method of enriching chlorine gas is described, which method comprises: (a) providing a supported ceramic membrane having a feed side and a permeate side; (b) bringing a feed gas comprising chlorine gas and contaminant gas into contact with the feed side of the ceramic membrane; (c) removing a gaseous permeate depleted in chlorine from the permeate side of the ceramic membrane; and (d) recovering a gas enriched in chlorine from the feed side of the ceramic membrane. The supported ceramic membrane has pore diameters in the range of from 3 angstroms to 12 angstroms. Preferably, the supported ceramic membrane is a substantially cylindrical supported ceramic membrane having a substantially cylindrical internal coaxial passage.
Claims23
A method of enriching chlorine gas comprising:
- (a) providing a supported ceramic membrane having a feed side and a permeate side;
- (b) bringing a feed gas comprising chlorine gas and contaminant gas into contact with said feed side of said ceramic membrane;
- (c) removing a gaseous permeate from said permeate side of said ceramic membrane;
- and
- (d) recovering a gas enriched in chlorine from said feed side of said ceramic membrane, wherein said ceramic membrane has pore diameters in the range of from 3 angstroms to 12 angstroms.
A method of enriching chlorine gas comprising:
- (a) providing at least one substantially cylindrical supported ceramic membrane having a feed side, a permeate side and an internal substantially cylindrical coaxial passage defined by the interior surface of said substantially cylindrical ceramic membrane, said ceramic membrane being housed in a casing, the exterior surface of said ceramic membrane and the interior surface of said casing defining an external passage;
- (b) bringing a feed gas comprising chlorine gas and contaminant gas into contact with said feed side of said ceramic membrane;
- (c) removing a gaseous permeate from said permeate side of said ceramic membrane;
- and
- (d) recovering a gas enriched in chlorine from said feed side of said ceramic membrane, wherein said ceramic membrane has pore diameters in the range of from 3 angstroms to 12 angstroms.
Dependencies are inferred from the claim text.