膜科学与技术

分离CO2固定载体膜工业化制备技术

作者：王树清，乔志华，王志

单位：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

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

出版年,卷(期):页码： 2016,36(5):87-94

摘要：

为实现CO2分离膜的大规模工业应用，本文开发了分离CO2固定载体膜的工业化制备技术，具体包括以下两部分内容。第一，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1000 mm的分离CO2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CO2/N2混合气，所制膜的CO2渗透速率可达500 GPU，CO2/N2分离因子可达87，对于水蒸气饱和的CO2/CH4混合气，所制膜的CO2渗透速率可达300 GPU，CO2/CH4分离因子可达55，所制膜的CO2/N2和CO2/CH4渗透选择性能远高于商品膜。第二，研制了卷式膜元件制备装置，利用该装置制备了长度为300 mm、膜面积为0.4 m2 的1812膜组件，1812膜组件对CO2/N2和CO2/CH4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 1000 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.

第一作者：王树清（1965-），男，天津，学士，中级工程师。

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