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The effect of the amount of Zn doped in ZSM-5 on the catalysis performance of MTA
Author(s): 
Pages: 118-120
Year: Issue:  7
Journal: Petrochemical Industry Application

Keyword:  ZSM-5甲醇芳构化反应(MTA)Zn掺杂BTX;
Abstract: 通过掺杂法向ZSM-5分子筛中引入Zn,制得一系列ZnHZSM-5催化剂,并采用XRD、ICP-MS方法对催化剂进行表征.使用固定床反应装置上考察了Zn负载量对甲醇芳构化反应(MTA)的影响.结果表明,经过Zn改性过的ZSM-5分子筛晶型结构基本没有发生变化,ZnO在ZSM-5分子筛表面分布比较均匀.Zn能提高HZSM-5的MTA反应活性和BTX选择性,1%Zn负载量可使芳烃收率可达到27%,同时催化剂兼具较长的使用寿命.
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