Electrochemical membrane gas separation
Membrane separation of gases is a well-established processing technique. In general, a high pressure difference is required across a selective, semi-permeable membrane. A component in a gas mixture can only be transferred to the pure phase in this way if its activity in the mixture is higher than that in the pure phase. A component at low concentration requires a high pressure to bring its activity to that level. Another drawback to this process is the incomplete selectivity of any physical membrane; purity of the extract is subject to compromise. Use of an electric field can be used in place of a pressure gradient. The author presents the theoretical basis for separation and the results obtained at the bench scale.
- OSTI ID:
- 183504
- Report Number(s):
- CONF-941175--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gas separations using inorganic membranes
Gas separations using inorganic membranes