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Effect of feed gas composition on the separation of CO2/CH4 mixtures by PES-SAPO 34-HMA mixed matrix membranes
Date
2012-11-01
Author
Cakal, Ulgen
Yılmaz, Levent
Kalıpçılar, Halil
Metadata
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The performance of zeolite and low molecular weight additive incorporated polyethersulfone (PES) membranes on the separation of CO2/CH4 mixtures at 35 degrees C was investigated. Four types of membranes, pure PES, PES/ 2-hydroxy 5-methyl aniline (HMA), PES/SAPO-34 and PES/SAPO-34/HMA, were prepared by solvent evaporation method. The CO2 concentration in the feed was varied between 5 and 70% by volume. PES/SAPO-34 membranes had a total permeability coefficient of 3 Barrer for an equimolar mixture, which was the highest permeability among all membranes. The highest separation factor, which was approximately 40 for CO2 over CH4, was obtained from PES/SAPO-34/HMA(4%) membrane. The addition of HMA considerably influenced the separation performance of PES/SAPO-34 membrane. The permeabilities increased with increasing concentration of CO2 in the feed whereas the separation factors of membranes were independent of feed composition, which introduces a major advantage from industrial point of view since the membranes can be used with the same performance in the separation of CO2/CH4 mixtures regardless of mixture composition.
Subject Keywords
Mixed matrix membrane
,
SAPO-34
,
Polyethersulfone
,
Binary gas mixtures
,
CO2/CH4 separation
URI
https://hdl.handle.net/11511/43616
Journal
JOURNAL OF MEMBRANE SCIENCE
DOI
https://doi.org/10.1016/j.memsci.2012.06.011
Collections
Department of Chemical Engineering, Article
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U. Cakal, L. Yılmaz, and H. Kalıpçılar, “Effect of feed gas composition on the separation of CO2/CH4 mixtures by PES-SAPO 34-HMA mixed matrix membranes,”
JOURNAL OF MEMBRANE SCIENCE
, pp. 45–51, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43616.