微通道反应器合成聚乙二醇400连续流工艺研究  

Study on Continuous Flow Process for Synthesis of Polyethylene Glycol 400 in Microchannel Reactor

作　　者：左小青 刘威 徐仕睿 李鹏 李小梅 张迅 高悦 柳新江 ZUO Xiao-qing;LIU Wei;XV Shi-rui;LI Peng;LI Xiao-mei;ZHANG Xun;GAO Yue;LIU Xin-jiang(Fushun Dongke New Energy Technology Co.,Ltd.,Fushun Liaoning 113000,China;Fushun Dongke Fine Chemical Co.,Ltd.,Fushun Liaoning 113000,China)

机构地区：[1]抚顺东科新能源科技有限公司,辽宁抚顺113000 [2]抚顺东科精细化工有限公司,辽宁抚顺113000

出　　处：《辽宁化工》2023年第6期840-842,共3页Liaoning Chemical Industry

摘　　要：对微通道反应器合成聚乙二醇400连续流工艺进行研究,采用乙二醇、环氧乙烷为原料,加入固体碱催化剂,按照固定反应物料比和催化剂用量,通过对反应停留时间、反应温度等条件的考察获得最佳工艺条件。结果表明:当n(乙二醇)∶n(环氧乙烷)=1∶4.0、反应温度120℃、反应停留时间200s时,得到的产品分子量分布系数最小,反应效果最佳。此工艺充分利用连续流微通道反应器优良的传质传热特点,缩短了反应时间,提高了反应效率,降低分子量分布。The continuous flow process of synthesizing polyethylene glycol 400 in microchannel reactor was studied.Using ethylene glycol and ethylene oxide as raw materials,adding solid alkali catalyst,according to the fixed reaction material ratio and catalyst dosage,through the investigation of reaction residence time,reaction temperature and other conditions,the best process conditions were obtained.The results showed that when the molar ratio of ethylene glycol to ethylene oxide was 1∶4.0,the reaction temperature was 120℃and the reaction residence time was 200 s,the molecular weight distribution coefficient of the product was the smallest and the reaction effect was the best.This process made full use of the excellent mass and heat transfer characteristics of microchannel continuous flow reactor,to greatly shorten the reaction time,improve the reaction efficiency and reduce the molecular weight distribution.

关 键 词：连续流工艺 反应停留时间 反应温度 分布系数 

分 类 号：TQ053.6[化学工程]