Membrane Separation for Gases: Materials, Preparation Methods and Transport Mechanism
Abstract
Gas adsorption and permeation of CO2 gas were
measured on two carbon molecular sieve membranes over a
wide pressure range. The two membrane samples were
fabricated under similar conditions but with different degrees
of carbonization. The pressure dependence of the permeation
time lag was investigated and it is found that the diffusion
coefficient takes a stronger functional dependence on loading
than the Darken relation and this dependence increases with
the degree of carbonization.
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