Ba-SAPO-34 Zeolite Membrane for CO₂/N₂ Separation: Process Optimization

Abstract

In the present research, Ba-SAPO-34 membrane was formed using microwave heating and ion-exchange process. The membrane was subjected to CO 2 /N 2 separation process considering 3 independent process variables as temperature, pressure difference across the membrane and CO 2 % in the feed. Response surface methodology coupled with central composite design, available in Design Expert software was used to perform optimization for the 2 response CO 2 permeance and CO 2 /N 2 separation selectivity as a function of the 3 independent process variables. The optimum CO 2 permeance and CO 2 /N 2 separation selectivity was 17.54x10 -7 mol/m 2 .s.Pa and 58.82 respectively at 30 o C, 145.10 kPa pressure difference and 5 % CO 2 in the feed.