Separation of Water from Organic Mixture with Hollow Fiber Membrane
Yang Bolun,Li Jianjun,Yang Sanba,Wang Huajun,Zhao Jinglian
(Xi'an Jiaotong University, Xi'an 710049, China)

Abstract: Hollow fiber membrane is empolyed to separate ethanol-water,tert-butyl alcohol-water, ethanol-tert-butyl alcohol-water mixture with pervaporation technique. The expressions of separation factor, permeation rates and pervaporation separation index are defined mathematically for the system. The relationship of these parameters is examined at separation condition. It is found that the pervaporation seperation index increases monotonically with temperature and concentration of water. A peak is observed when the flow rate is increased.
Keywords: pervaporation;hollow fiber membrane;ethanol;tert-butyl alcohol;water