Abstract
Among the various CO2 reduction technologies, membrane-based technologies are the most efficient and environmentally friendly process. In this study, matrix membranes of polyester sulfone (PES) mixed with zeolite were used for CO2 separation. SAPO-34 zeolite was used as a mineral filler and 3-3-aminopropyl methyl detoxysilane (APMDES) was used to modify SAPO-34 zeolite. The mixed matrix membranes were then examined by FTIR, TGA, SEM and gas diffusion analysis. CO2 and CH4 separation experiments showed that increasing the temperature reduces the CO2 / CH4 separation factor, while increasing the feed pressure and increasing the CO2 feed composition increases the separation factor. The results of experimental design showed that the feed pressure is the most important process parameter that affects the CO2 / CH4 separation factor. The MMMs synthesized in this study demonstrate competitive CO2 / CH4 separation performance compared to PES-based membranes in pure gas penetration tests.Keywords: mix matrix membrane, SAPO-34, Polyethersulfone, CO2 separation
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