膜科学与技术

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Research on structure optimization and mass transfer performance for G-L membrane contactor

Authors： Chen Ying1,2, Guan Yipeng1, Guo Chungang1, Zhang Zhaocai1,

Units： Liu Guochang1, Li Xiaoming1

KeyWords： Hollow fiber membrane; G-L membrane contactor; Membrane gas absorption; Seawater flue gas desulfurization

ClassificationCode：TQ028.8 X701.3

year,volume(issue):pagination： 2012,32(3):48-51

Abstract：

In this paper, G-L membrane contactor was applied for SO2 removal from simulation flue gas using seawater as absorbent. The effects of membrane contactor structure parameters, flow rate and mode between gas and seawater, pressure gradient and SO2 concentration on mass transfer, desulfurization efficiency and membrane utility were investigated. The results showed that flow rate and pressure gradient evidently affected overall gas mass transfer coefficient on condition of low gas pressure, but the effect of SO2 concentration could be ignored. Increasing membrane absorber packing density, membrane absorption stage and cross flow mode could improve gas distribution in the flow field, increase the efficient mass transfer area and membrane utility. Compared with traditional absorption tower, novel membrane gas absorption equipment can control the gas and seawater independently, coping with gas concentration variation flexibly. In addition, the main advantages of membrane absorber are low pressure drop, resistant fouling and easy scale-up membrane absorber, so has broad industrialization application prospect.

Funds：

2008海洋公益性行业科研专项经费项目(200805033)

AuthorIntro：

陈颖(1960-),女,吉林长春人,学士,教授级高工,从事膜技术研发与应用.E-mail:chy786@tom.com

Reference：

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