甲基丙烯腈新工艺中分子筛催化剂限域效应研究  

Study on the Confinement Effect of Molecular Sieve Based Catalysts during the New Production Process of Methacrylonitrile

作　　者：王昊 罗从光 熊德胜 郭耘[3] 庄岩 吴君毅 蒋兆飞 WANG Hao;LUO Congguang;XIONG Desheng;GUO Yun;ZHUANG Yan;WU Junyi;JIANG Zhaofei

机构地区：[1]上海华谊集团股份有限公司,上海200040 [2]上海华谊新材料有限公司,上海201108 [3]华东理工大学化学与分子工程学院,上海200237

出　　处：《上海化工》2025年第2期5-12,共8页Shanghai Chemical Industry

基　　金：上海市科技启明星扬帆项目(24YF2719000)。

摘　　要：研究了ZSM-5,Yzeolite,MCM-22,SBA-15及MCM-41等分子筛负载Ni基催化剂对于甲基丙烯醛(MAL)氨化脱氢制备甲基丙烯腈(MAN)反应过程的影响,结果表明,载体孔道结构对于原料的反应及目标产物的生成均有较大影响,微孔结构因为积炭堵塞容易出现快速失活现象,而适中的介孔孔道结构有利于获得稳定的MAL反应速率及较优的MAN生成速率。The catalytic performance of ZSM-5,Y zeolite,MCM-22,SBA-15 and MCM-41 loaded with Ni were studed for ammoniation and dehydrogenation reaction of methylacrolein(MAL)to methacrylonitrile(MAN).The results indicate that pore structure of support material has great influence on the reaction of raw material and the formation of target product.The catalyst samples with microporous structure tend to be rapidly deactivated due to carbon deposition,while the moderate mesoporous structure of the support material are conducive to obtain the stable MAL reaction rate and superior MAN production rate.

关 键 词：甲基丙烯腈 分子筛 催化剂 限域效应 

分 类 号：TQ033[化学工程]