04881953 is referenced by 72 patents and cites 19 patents.

In the separation of gases in a membrane system, degradation of membrane permeability is prevented by passing the feed gas mixture through a bed of adsorbent material, preferably activated carbon, to adsorb the heavier hydrocarbon contaminants responsible for degradation without removal of lighter hydrocarbons.

Title
Prevention of membrane degradation
Application Number
7/244419
Publication Number
4881953
Application Date
September 15, 1988
Publication Date
November 21, 1989
Inventor
Oscar W Haas
North Tonawanda
NY, US
Ravi Prasad
East Amherst
NY, US
Agent
Alvin H Fritschler
Assignee
Union Carbide Corporation
CT, US
IPC
B01D 53/04
B01D 53/22
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