Catalytic Activity of Pt Modified Hierarchical ZSM-5 Catalysts in Benzene Alkylation with Methanol
Catalytic Activity of Pt Modified Hierarchical ZSM-5 Catalysts in Benzene Alkylation with Methanol
复制标题
Pt修饰多级ZSM-5催化剂在苯与甲醇烷基化反应中的催化活性
DOI：
10.1007/s10562-014-1458-3
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发表时间：
2015-02-01
影响因子：
2.8
通讯作者：
Li, Xiaonian
中科院分区：
文献类型：
--
作者：
Hu, Hualei;Zhang, Qunfeng;Li, Xiaonian
多级ZSM-5分子筛在苯与甲醇的烷基化反应中表现出比常规ZSM-5分子筛更好的催化性能。然而，这仍然是一个主要问题。在本研究中，我们用铂修饰分级ZSM-5分子筛，在固定床连续流动反应器中评价苯与甲醇的烷基化反应。发现Pt改性的分级ZSM-5能成功地将分级ZSM-5的催化优势和Pt对烯烃生成的高度抑制作用联合收割机结合起来。此外，采用直接还原可以通过避免Pt颗粒烧结来提高Pt的利用率。
AbstractHierarchical ZSM-5 zeolite showed an improved performance as compared to conventional ZSM-5 catalysts in the alkylation of benzene with methanol. However, ethylbenzene yet remains as a major problem. In this study, we modified hierarchical ZSM-5 with Pt to evaluate the alkylation of benzene with methanol in a fixed-bed continuous flow reactor. It was found that Pt modified hierarchical ZSM-5 could successfully combine the catalytic advantages of hierarchical ZSM-5 and the high suppression of Pt to ethylbenzene formation. Moreover, employing direct reduction could improve the utilization of Pt by avoiding Pt particles sintering.Graphical Abstract.