芳构化ZSM-5分子筛催化剂金属改性进展  

Advances on metal modification of ZSM-5 molecular sieve catalyst for aromatization

作　　者：张君涛[1] 黄超 杨康 王令营 刘健 武瑞瑞 ZHANG Jun-tao;HUANG Chao;YANG Kang;WANG Ling-ying;LIU Jian;WU Rui-rui(College of Chemistry&Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,China;Xi'an Branch,Beijing Petrochemical Engineering Co.,Ltd.,Xi'an 710065,China)

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]北京石油化工工程有限公司西安分公司,陕西西安710065

出　　处：《现代化工》2022年第11期70-75,共6页Modern Chemical Industry

基　　金：陕西省自然科学基础研究计划项目(2019JLM-1);陕西省重点研发计划项目(2020ZDLSF06-10);陕西省教育厅科研计划项目(21JK0850)。

摘　　要：分析了近年来浸渍法与同晶取代法对ZSM-5进行改性的研究进展,并对2种方法进行了比较,结果表明,同晶取代较浸渍法对催化剂的酸性可调节性更大,且BTX选择性更高、积碳更少、寿命更长。同晶取代法与其他方法复合使用,芳烃的选择性更高,催化性能更加优良。最后,对ZSM-5分子筛催化剂用于MTA的发展方向做出了展望。Latest research progress on the modification of ZSM-5 molecular sieve by impregnation method and isomorphic substitution method respectively in recent years is analyzed,and these two methods are compared.It is concluded that isomorphic substitution method has greater acid adjustability,higher(BTX)selectivity,less carbon deposition and longer service life span than impregnation method.It is pointed out that the ZSM-5 molecular sieve modified by the combination of isomorphic substitution method and other methods exhibits higher selectivity of aromatics and better catalytic performance.The development direction about application of ZSM-5 catalyst in methanol to aromatics is prospected.

关 键 词：ZSM-5分子筛 同晶取代 浸渍法 芳构化 

分 类 号：O643.36[理学—物理化学]