乙炔气相法合成乙酸乙烯催化剂的研究进展  

Research progress of catalysts for synthesis of vinyl acetate from acetylene and acetic acid

作　　者：郭秀玲[1] 陈光辉[1] 王伟文[1] 李建隆[1] GUO Xiuling;CHEN Guanghui;WANG Weiwen;LI Jianlong(Shandong Key Laboratory of Multi-phase Fluid Reaction Engineering and Separation Engineering,College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong,China)

机构地区：[1]青岛科技大学化工学院,山东省多相流体反应与分离工程重点实验室,山东青岛266042

出　　处：《化工进展》2017年第9期3293-3299,共7页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21276123);青岛市科技成果转化计划--科技惠民专项项目(16-6-2-50-nsh)

摘　　要：乙炔气相法制备乙酸乙烯工艺通常采用乙酸锌/活性炭催化剂。本文综述了活性组分、载体特性、助催化剂、制备方法及催化剂失活原因的研究,指出了乙酸锌为活性组分最佳选择,对比了3种催化反应机理,讨论了活性组分最佳负载量及负载方法;简述了活性炭作为催化剂载体所具有的特性,结合有效孔径分析了载体改性对催化剂活性的提高效果,展示了竹质活性炭作为催化剂载体良好的应用前景,并总结了催化剂失活的主要原因。指出需通过改性解决催化剂载体有效孔比例低的问题,并开展抑制催化剂失活的研究。The carbon-supported zinc acetate was used as the catalyst for the gas phase synthesis of vinyl acetate from acetylene and acetic acid.Researches on active components,features of catalyst support,promoters,catalyst preparation method and deactivation mechanism were reviewed.It was pointed out that zinc acetate was the optimal active component,and the mechanisms of three kinds of catalytic reaction were compared,then the optimal loading amount of active components and the loading method were discussed.The advantages of using activated carbon as catalyst support were described,and the influence of support modification on the activity of the catalyst was analyzed in associated with the effective pore diameter.In addition,the good application prospects of bamboo activated carbon as support were affirmed.The reasons of catalyst deactivation were also summarized in this paper.Further improving the ratio of effective pores by modifications and refraining the deactivation of the catalyst are in demand.

关 键 词：活性炭 催化剂 脱附 失活 磨损 

分 类 号：TQ426[化学工程]