Method for removal of water from activated carbon
AssigneeConoco Inc.
InventorsRonald J. Convers, James A. DeBernardi
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Abstract
A method of removing water from activated carbon is disclosed. Briefly, the method comprises (a) passing liquid 1,2-dichloroethane through a bed of activated carbon until a bulk water phase ceases to exit the bed or until from about 60 to about 80 weight percent of the water present in a water-saturated bed has been removed and (b) removing substantially all of the remainder of the water present by use of vacuum or by passing hot air or hot nitrogen through the activated carbon.
Claims12
A method of removing water from activated carbon wherein the method comprises:
- (a) passing about 0.2 to about 4 bed weights of liquid 1,2-dichloroethane through a bed of activated carbon, which contains from about 0.1 to about 70 weight percent water, until from about 60 to about 80 weight percent of the water present in the bed has been removed, and
- (b) removing substantially all of the remaining water by use of vacuum or by passing hot air or hot nitrogen through the activated carbon.
A method of removing water from activated carbon wherein the method comprises:
- (a) passing about 0.5 bed weight of liquid 1,2-dichloroethane, which is at a temperature of about 25.degree. C., through a bed of activated carbon whereby from about 60 to about 80 weight percent of the water present has been removed, and
- (b) passing about 18 bed weights of nitrogen, which is at a temperature in the range of about 100.degree. to about 250.degree. C., through the bed of activated carbon to remove substantially all of the remaining water.
Dependencies are inferred from the claim text.