Novel Membrane Contactors Used in Waste Gas/Liquid Separation
Zhang Guoliang, Yang Zhihong, Sun Haimin and Meng Qin
Affiliation: College of Biological&Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China.
This work reviews the recent patents and progresses of novel membrane contactors used in gas/liquid separation. Compared with conventional separation facilities, membrane contactors will play more and more important role in waste treatment in the near future. The advantages in separation include wider operation range, higher separation efficiency, independent flow between liquid and gas, linear scale-up and compact structure, etc. The structure of hollow fiber membrane contactor are emphatically analyzed and typical gas/liquid separation process such as membrane adsorption, membrane distillation and membrane structured packing in waste treatment are investigated in detail. Some successful commercial products in use such as Liqui-Cel membrane contactor were introduced for example.
Keywords: Novel membrane contactor, interfacial area, mass transfer, gas/liquid separation, two phases fluid, structured packing, membrane material, membrane distillation, membrane absorption, operational factor
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