membranes for co2 removal from ng

[MGS]

i'm looking for data on the membranes for co2 removal, such as natco's cyanara or uop's separax (they are both asummetric cellulose acetate).
i was wondering if anybody has data on the co2/ch4 selectivity and co2 permeability in those membranes at normal operating temperature.
many thanks!

 

[dcasto]

The GRI has a program called MemCalc that calculates membrane effiencies.

http://www.gri.org/