Coke-Tolerant Gadolinium-Promoted HZSM-5 Catalyst for Methanol Conversion into Hydrocarbons

被引：11

作者：

Kim, Sungtak ^{[1
]}

Kim, Yong Tae ^{[1
]}

Hwang, Ahron ^{[1
]}

Jun, Ki-Won ^{[1
]}

Kwak, Geunjae ^{[1
]}

机构：

[1] Inst Korea Res Inst Chem Technol, Dept Carbon Resources Inst, Gas Convers Res Grp C1, Daejeon 34114, South Korea

来源：

CHEMCATCHEM | 2017年 / 9卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

coke; hydrocarbons; rare earths; thin films; zeolites; AROMATIC-HYDROCARBONS; ZEOLITE CATALYSTS; ZSM-5; CATALYSTS; MFI ZEOLITES; MESOPOROSITY; COKING; DEACTIVATION; DESILICATION; MECHANISM; CRACKING;

D O I：

10.1002/cctc.201601559

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The role of Gd as a coke inhibitor was studied for the methanol-to-hydrocarbons reaction. It was revealed that thin films of gadolinium oxide covered the ZSM-5 crystals and that the Gd atoms that were uniformly dispersed on the surface enhanced the basicity of the parent ZSM-5. These synergetic effects improved the durability of the acidic function and diminished the growth of coke precursors, which resulted in an increased lifetime of the catalyst.

引用

页码：1569 / 1573

页数：5

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