聚丙烯酸四甲基胍的制备及其吸收-解吸二氧化硫  

Preparation of Poly(1,1,3,3-tetramethylguanidine acrylate) and Its Absorption-Desorption Properties to SO_2

作　　者：夏宇正[1] 杜士帽[1] 魏甲明[2] 刘君[2] 李建舟[2] 石淑先[1] 

机构地区：[1]北京化工大学材料科学与工程学院碳纤维及功能高分子教育部重点实验室,北京100029 [2]中国恩菲工程技术有限公司,北京100038

出　　处：《过程工程学报》2012年第4期583-589,共7页The Chinese Journal of Process Engineering

基　　金：国家高技术研究发展计划(863)基金资助项目(编号:2009AA032802)

摘　　要：通过自由基溶液聚合制备了聚丙烯酸,使其与1,1,3,3-四甲基胍中和反应制得聚丙烯酸四甲基胍(PTMGA),利用模拟的工业装置,研究了PTMGA水溶液在不同温度和烟气条件下吸收解吸SO2的性能.结果表明,PTMGA水溶液对SO2具有较好的吸收解吸性能及选择吸收性能.当吸收温度40℃、烟气中SO2浓度2%或4%(φ)时,PTMGA水溶液吸收SO2效率大于97%,解吸效率大于40%,且低温利于吸收,高温利于解吸.The polyacrylic acid with different molecular weights was synthesized by free radical solution polymerization,then the poly（1,1,3,3-tetramethylguandium acrylate）（PTMGA） was obtained through neutralizing PAA with 1,1,3,3-tetramethylguanidine.The effects of temperatures and concentration of flue gas on absorption and desorption properties of SO2 by PTMGA solution were investigated in the current industrial processes.The results show that the title PTMGA solution is a kind of good absorption-desorption and selective absorption agent to SO2.The absorption efficiency of PTMGA aqueous solution is higher than 97%,and the desorption efficiency more than 40% when temperature is 40℃,and SO2 concentration of flue gas 2% or 4%（φ）.Furthermore,the PTMGA solution tends to absorb SO2 at low temperature,and desorb SO2 at high temperature.

关 键 词：聚丙烯酸四甲基胍 制备 SO2 吸收 解吸 

分 类 号：TQ319[化学工程—高聚物工业] TQ028.2