高选择性透过SO_2气体分离膜研究 Ⅱ.丙基乙烯基亚砜改性聚乙烯醇功能高分子膜的分离性能  

STUDY ON EFFICIENT PERMSELECTIVE GAS SEPARATION MEMBRANE FOR SULFUR DIOXIDE II. SEPARATION CHARACTERISTICS OF MEMBRANE FROM POLY(VINYL ALCOHOL) MODIFIED WITH PROPYL VINYL SUFOXIDE

作　　者：龚张水[1] 张一烽[1] 沈之荃[1] 

机构地区：[1]浙江大学化学系,杭州邮政编码310027

出　　处：《高分子学报》1993年第1期37-41,共5页Acta Polymerica Sinica

基　　金：高等学校博士学科点专项科研基金;浙江省科委资助

摘　　要：丙基乙烯基亚砜改性聚乙醇功能高分子膜对SO_2,N_2及SO_2-N_2混合气体的渗透性能研究表明,该膜具有高选择透过SO_2的优良性能.透过SO_2的速率随着亚砜基含量的增加而增加,当亚砜基含量为25(mol)％时,经一次分离能使混合气体中SO_2的含量从1.54％提高到78.8％.Permeation of SO2, N2 and separation of SO2-N2 mixed gas through functional polymer membrane of poly (vinyl alcohol) modified with propyl vinyl sulfoxide have been studied. The results show that the membrane possess high permselectivity for SO, and the permeability of SO2 increases with the increase of the sulfoxide content in polymer. Through the membrane with 25 mol % sulfoxide content, SO2 in SO2-N2 mixed gas can be enriched from 1.54% to 78.8% by one single pass.

关 键 词：气体分离膜 二氧化硫 亚砜基 

分 类 号：TQ028.8[化学工程]