%0 Journal Article %T The effect of ethane on the performance of commercial polyphenylene oxide and Cardo-type polyimide hollow fiber membranes in CO2/CH4 separation applications %A Pourafshari Chenar, Mahdi %A Houman Savoji %A Mohammad Soltanieh %A Takeshi Matsuura %A Shahram Tabe %J Korean Journal of Chemical Engineering %@ 0256-1115 %D 2010