气提法脱除废水中的丙烯腈  

Gas stripping with compressed air for acrylonitrile removal from one-step condensate

作　　者：梅诗宇[1] 任健[1] 祝铃钰[2] 姚克俭[2] 

机构地区：[1]中国石化上海石油化工股份有限公司腈纶事业部,上海200540 [2]浙江工业大学材料与化学工程学院,浙江杭州310032

出　　处：《化工进展》2010年第7期1201-1204,共4页Chemical Industry and Engineering Progress

摘　　要：在内径近300mm的有机玻璃塔内,采用压缩空气对一步法蒸发冷凝水中的丙烯腈进行气提。实验用塔内件包括圆筒型散装填料、复合塔板和固定阀塔板三种。研究结果表明,采用压缩空气对一步法蒸发冷凝水中的丙烯腈进行气提是处理此类废水的有效方法。气提冷凝水的温度对气提法脱除丙烯腈的影响较大;同样操作条件下采用复合塔板比固定阀塔板的丙烯腈脱除率高;同等高度的圆筒型散装填料脱除率更高。A striping operation using compressed air to remove acrylonitrile from one-step condensate in a 300 mm plexiglass column was investigated.Improved pall ring,compound tray and fixed valve tray were used in the experiment as the internal components,which was proved to be effective to strip acrylonitrile from wastewater with compressed air.The temperature of condensate water showed an obvious influence for the acrylonitrile removal with gas stripping.Under same operating conditions,it was considered that the compound tray is better than the fixed tray in increasing acrylonitrile removal rate.

关 键 词：丙烯腈 气提法 固定阀塔板 复合塔板 圆筒型散装填料 

分 类 号：TQ028.4[化学工程]