分离CO2固定载体膜工业化制备技术  

Industrialization preparation technology of fixed carrier membranes for CO_2 separation

作　　者：王树清[1] 乔志华[1] 王志[1] 

机构地区：[1]天津大学化工学院化学工程研究所,天津化学化工协同创新中心,化学工程联合国家重点实验室(天津大学),天津市膜科学与海水淡化技术重点实验室,天津300072

出　　处：《膜科学与技术》2016年第5期87-94,共8页Membrane Science and Technology

基　　金：国家自然科学基金项目(21436009);国家高技术研究发展计划(2012AA03A611)

摘　　要：为实现CO_2分离膜的大规模工业应用,开发了分离CO_2固定载体膜的工业化制备技术.研制了工业规模连续化制膜装置,利用该装置规模化制备了幅宽1 000mm的分离CO_2固定载体膜[聚乙烯醇(PVA)/聚乙烯基胺(PVAm)-哌嗪(PIP)/聚砜(PSf)膜],对于水蒸气饱和的CO_2/N_2混合气,所制膜的CO_2渗透速率可达500GPU,CO_2/N_2分离因子可达87,对于水蒸气饱和的CO_2/CH_4混合气,所制膜的CO_2渗透速率可达300GPU,CO_2/CH_4分离因子可达55,所制膜的CO_2/N_2和CO_2/CH_4渗透选择性能远高于商品膜.研制了卷式膜元件制备装置,利用该装置制备了长度为300mm、膜面积为0.4m^2的1812膜组件,所制膜和膜组件对CO_2/N_2和CO_2/CH_4的渗透选择性能高于商品膜.To realize large-scale industrialization application of CO2 separation membranes, an industrialization preparation technology of fixed carrier membranes for CO2 separation was developed, which is including two parts： （1） the development of continuous fabrication device with industrial scale for membranes and the large-scale fabrication of the fixed carrier membranes [polyvinyl alcohol （PVA）/ polyvinylamine （PVAm）-（piperazine） PIP/polysulfone （PSf） membrane] with the width of 1 000 mm; （2） the development of the fabrication device for spiral-wound membrane elements and the fabrication of spiral- wound membrane modules （1812 membrane module） with the width of 300 mm and the membrane area of 0.4 m2. For CO2/N2 mixed gas saturated with water vapor, CO2 permeance of the membrane can reach 500 GPU, CO2/N2 selectivity can reach 87, for CO2/CH4 mixed gas saturated with water vapor, CO2 permeance of the membrane can reach 300 GPU, CO2/CH4 selectivity can reach 55. CO2/N2 and CO2/CH4 separation performance of the membranes and membrane modules are higher than that of commercial membranes.

关 键 词：固定载体膜 工业化制备技术 聚乙烯基胺-哌嗪 CO2渗透选择性能 

分 类 号：TQ051.893[化学工程]