热缩聚煤沥青压型制备分子筛炭膜(Ⅲ)─—表面涂层法制备分子筛炭膜  

MANUFACTURING CARBON MOLECULAR SIEVE MEMBRANE FROM HEAT-TREATMENT COAL PITCH BY PRESSING (Ⅲ)──PREPARING CARBON MOLECULAR SIEVE MEMBRANE BY SURFACE COATING

作　　者：王振余[1] 郭树才[1] 

机构地区：[1]大连理工大学煤化工研究所,大连116012

出　　处：《炭素技术》1997年第1期10-12,共3页Carbon Techniques

基　　金：国家教委博士点基金

摘　　要：表面涂层法是制备分子筛炭膜的有效方法、以酚醛树脂的乙醇溶液作为涂层液对炭膜基板进行处理，制得适合H2/CO2分离的分子筛炭膜。结果表明，适宜的涂层液浓度为30％（Vol），涂层处理四次制得分子筛炭膜。H2与CO2的渗透速率分别为2．66×10－5和2．22×10－6cm3（STP）／cm2·s．cmHg，二者的分离系数可达到11．7。Surface coating is one of effective methods for preparing carbon molecular sieve membrane (CMSM ). CMSM was obtained from treating carbon membrane substrate with PF-alcohol solution.The CMSM is suitable for separating H2/CO2. Results show that perfect coating concentration is 30%(Vol ). CMSM can be prepared after coating 4 times. The permeation rates of H2 and CO2 are about 2. 66×10-5 and 2. 22× 10-6 cm3 (STP ) /cm2·s·cmHg. The separation factor is about 11. 7.

关 键 词：表面涂层 分子筛 炭膜 气体分离 热缩聚 煤沥青 

分 类 号：TQ424.25[化学工程]