Synthesis and optimization of high-performance amine-based polymer for CO_(2) separation  

作　　者：Ye Yuan Yurui Pan Menglong Sheng Guangyu Xing Ming Wang Jixiao Wang Zhi Wang 

机构地区：[1]Chemical Engineering Research Center,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China [2]Tianjin Key Laboratory of Membrane Science and Desalination Technology,State Key Laboratory of Chemical Engineering,Collaborative Innovation Center of Chemical Science and Engineering,Haihe Laboratory of Sustainable Chemical Transformations,Tianjin University,Tianjin 300350,China [3]College of Chemical Engineering and Safety,Binzhou University,Engineering Research Center for Industrial Wastewater Treatment and Reuse of Shandong Province,Binzhou 256600,China

出　　处：《Chinese Journal of Chemical Engineering》2022年第10期168-176,共9页中国化学工程学报（英文版）

基　　金：supported by the National Key Research and Development Program of China(2021YFB3801200);the National Natural Science Foundation of China(21938007);the Natural Science Foundation of Hebei Province(E2020402036)。

摘　　要：Membrane technology features inspiring excellence from numerous separation technologies for CO_(2) capture from post-combustion gas.Polyvinylamine(PVAm)-based facilitated transport membranes show significantly high separation performance,which has been proven promising for industrial scale-up.However,commercialized PVAm with low molecular weight and excessive crystallinity is not available to prepare high-performance membranes.Herein,the synthesis process of PVAm was optimized by regulating polymerization and acidic hydrolytic conditions.The membranes based on PVAm with a molecular weight of 154 kDa and crystallinity of 11.37%display high CO_(2) permeance of 726 GPU and CO_(2)/N_(2) selectivity of 55 at a feed gas pressure of 0.50 MPa.Furthermore,we established a PVAm synthesis reactor with an annual PVAm solution(1%(mass))capacity of over 7000 kg and realized the scaled-up manufacture of both PVAm and composite membranes.

关 键 词：CO_(2)/N_(2)separation POLYVINYLAMINE Polymeric membranes Facilitated transportmembranes 

分 类 号：X701[环境科学与工程—环境工程] TQ051.893[化学工程] TQ317