Issue 22, 2023

Maximizing the catalytic performance of FER zeolite in the methanol-to-hydrocarbon process by manipulating the crystal size and constructing a bifunctional system

Abstract

Although more than 250 different zeolites/zeo-type materials have been discovered to date, the industrial catalyst catalog of the zeolite-catalyzed methanol-to-hydrocarbon (MTH) process is only limited to ZSM-5 (MFI topology with a 10-membered ring (MR)) and SAPO-34 (CHA topology with 8-MR). Herein, the zeolite FER, in principle, could be an attractive alternative as it owns a two-dimensional interconnecting channel system, where a 10-MR channel is perpendicular to the 8-MR channel. However, a shorter lifetime over commercial and literature-reported synthesized FER (avg. 1 hour) is a grave concern. We have strategically integrated material design and catalysis optimization with advanced characterization to improve the catalyst durability of the zeolite FER-catalyzed MTH process. Herein, we report a unique flake-shaped FER (f-FER) zeolite with optimized physicochemical properties that led to a superior lifetime (∼3 hours) to commercial FER (∼1 hour). Upon combining f-FER zeolite with Y2O3, an unprecedented catalyst lifespan (∼20 hours) was accomplished with a preferential selectivity for C4–C7 hydrocarbons. Minimizing the involvement of formaldehyde during the early stages of the MTH process favors the alkene cycle over the arene cycle, eventually extending the catalyst lifetime.

Graphical abstract: Maximizing the catalytic performance of FER zeolite in the methanol-to-hydrocarbon process by manipulating the crystal size and constructing a bifunctional system

Supplementary files

Article information

Article type
Research Article
Submitted
03 8月 2023
Accepted
13 9月 2023
First published
13 9月 2023

Inorg. Chem. Front., 2023,10, 6632-6645

Maximizing the catalytic performance of FER zeolite in the methanol-to-hydrocarbon process by manipulating the crystal size and constructing a bifunctional system

X. Zhang, H. Zhou, Y. Ye, X. You, X. Zhou, S. Jiang, K. Liu and A. Dutta Chowdhury, Inorg. Chem. Front., 2023, 10, 6632 DOI: 10.1039/D3QI01526B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements