z rajabi - department of chemical eng faculty of eng rarak university arak ۳۸۱۵۶-۸-۸۳۴۹ iran
a.r moghadassi - department of chemical eng faculty of eng rarak university arak ۳۸۱۵۶-۸-۸۳۴۹ iran
m mohammadi - department of chemical eng faculty of eng rarak university arak ۳۸۱۵۶-۸-۸۳۴۹ iran
s.m hosseini - department of chemical eng faculty of eng rarak university arak ۳۸۱۵۶-۸-۸۳۴۹ iran

Polyvinylchloride (PVC)/Styrene-Butadiene-Rubber (SBR) blend gas separation membrane were prepared by solution casting method using tetrahydrofuran (THF) as solvent. The zeolite loading and pressure effects on the gas separation performance of these membranes were studied for pureHe, N2, CH4, CO2 gases. The experimental results indicate that a higher zeolite loading results in enhancement permeability and a reduction in CO2 /N2, CO2 /CH4 and N2/ CH4 selectivity for a given pressure. By considering the pressure effects, it is recognized that nearly for all considering gases and zeolite loadings, the permeability increased with increasing the pressure. It is observed that for CO2/ N2 and CO2/CH4 gas pairs, selectivities decrease with increasing the pressure for all zeolite loadings and for N2/ CH4 at 50% zeolite loading, the gas pair selectivity increased with increasing pressure.

mixed matrix membrane,gas separation,zeolite ,permeability ,selectivity