Membrane Gas Separation Applications and Conclusions

Hydrogen separation was the first commercial usage for membrane-based gas separations, and it is of great importance in many petrochemical processes. Polysulfone 

Carbon-dioxide-selective separation is becoming an important issue in areas such as petrochemical engineering (e.g., CO2 removal from natural gas), environment (e.g., CO2 removal from flue gas), agriculmre (e.g., control of CO2 concentration), and other related industries. Membranes can selectively separate CO2 from industrial processes. 

2 Naturai Gas Sweetening Processes These processes remove CO2 from high-pressure methane stemming from natural gas walls. Many natural gas streams are 

5 Further Naturai Gas Purification Further expansion of the natural gas purification market to include CO2 removal, dehydration, and removal of higher hydrocarbons to control heating values and dew points will be possible using membrane systems. 

Alentiev, A. Y., and Yampolskii, Y. P. (2000). Free volume model and tradeoff relations of gas permeability and selectivity in glassy polymers. J. Membr. Sci. 165, 201. 

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