%0 Journal Article
%T Separation of carbon dioxide from gas mixture by membrane contactor<br>膜接触器分离混合气中二氧化碳的研究
%A Zhu Baoku
%A Chen Wei
%A Wang Jianli
%A Xu Youyi
%A Xu Zhikang
%A <br>Zhu B
%A Chen W
%A Wang J
%A Xu Y
%A Xu Z
%J 环境科学
%D 2003
%I 
%X In this paper, membrane contactor made of hydrophobic hollow fiber polypropylene porous membrane (HFPPM) was used for separating carbon dioxide (CO2) from CO2/N2 mixtures. The effects of absorbents, concentration and flow rate of feeding gas and absorbent solution, lumen/shell side processes and gas permeability of HFPPM(P) on the CO2 absorption efficiency were investigated. It was found that the absorption efficiency of three absorbents ranged in order of ethanolamine > sodium hydroxide > diethanol amine. For CO2/N2 mixture of c(in) = 20% and v(in) = 0.5-1.0 m3.h-1, and MEA solution of cMEA = 2.5 mol.L-1 and vL = 40-160 L.h-1, the removal efficiencies of CO2 (eta) and the mass transport coefficients (K) was 9.5% - 99.5% and 4.5-6.8 x 10(-4) m.s.-1 respectively. K of the modules made of HFPPM with larger P was relatively larger. eta in lumen process was 30% larger than that in shell process.
%K carbon dioxide removal ratio
%K hollow fiber polypropylene membrane
%K membrane contactor
%K mass transfer coefficient of carbon dioxide<br>CO2脱除率
%K CO2传质系数
%K 聚丙烯中空纤维膜
%K 膜接触器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=FFCFC23C041AB326&yid=D43C4A19B2EE3C0A&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=339D79302DF62549&eid=16D8618C6164A3ED&journal_id=0250-3301&journal_name=环境科学&referenced_num=18&reference_num=14