Making Nanosized CHA Zeolites with Controlled Al Distribution for Optimizing Methanol-to-Olefin Performance

被引：58

作者：

Gallego, Eva M. ^{[1
]}

Li, Chengeng ^{[1
]}

Paris, Cecilia ^{[1
]}

Martin, Nuria ^{[1
]}

Martinez-Triguero, Joaquin ^{[1
]}

Boronat, Mercedes ^{[1
]}

Moliner, Manuel ^{[1
]}

Corma, Avelino ^{[1
]}

机构：

[1] Univ Politecn Valencia, Consejo Super Invest Cient, Inst Tecnol & Quim, Ave Naranjos S-N, E-46022 Valencia, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2018年 / 24卷 / 55期

关键词：

aluminum; chabazite; light olefins; methanol-to-olefin process; zeolites; MESOPOROUS SSZ-13 ZEOLITE; CHABAZITE ZEOLITES; MTO PROCESS; CONVERSION; CATALYSIS; HYDROCARBONS; STABILITY;

D O I：

10.1002/chem.201803637

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

From theoretical calculations and a rational synthesis methodology, it has been possible to prepare nanocrystalline (60-80 nm) chabazite with an optimized framework Al distribution that has a positive impact on its catalytic properties. This is exemplified for the methanol-to-olefin (MTO) process. The nanosized material with the predicted Al distribution maximizes the formation of the required MTO hydrocarbon pool intermediates, while better precluding excessive diffusion pathways that favor the rapid catalyst deactivation by coke formation.

引用

页码：14631 / 14635

页数：5

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