A solvent-free in situ synthesis of a hierarchical Co-based zeolite catalyst and its application to tuning FischerTropsch product selectivity

A solvent-free in situ synthesis of a hierarchical Co-based zeolite catalyst and its application... As a distinctive supportable route, the solvent-free synthesis of zeolites not only minimizes the problems of conversional hydrothermal synthesis, but also greatly increases the product yields with advantageous characteristics, such as reduced waste production and a hierarchical pore structure. Herein, we demonstrate using in situ crystal Co/SiO2 to form a hierarchical catalyst with Co particles entrapped inside the ZSM-5 body via a solvent-free process. Na-type zeolite catalysts enhanced the production of gasoline-range (C5C11) products, with Co@NaZSM-5 giving a high selectivity of 68% in the FischerTropsch synthesis. Obviously, all characterizations showed that these solvent-free synthesized samples had high crystallization and a high surface area for mass transfer. This hierarchical zeolite has the potential to be applied to other similar materials owing to its convenient synthesis method, features, and outstanding results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Catalysis Science & Technology Royal Society of Chemistry

A solvent-free in situ synthesis of a hierarchical Co-based zeolite catalyst and its application to tuning FischerTropsch product selectivity

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
2044-4753
eISSN
2044-4761
D.O.I.
10.1039/c8cy00243f
Publisher site
See Article on Publisher Site

Abstract

As a distinctive supportable route, the solvent-free synthesis of zeolites not only minimizes the problems of conversional hydrothermal synthesis, but also greatly increases the product yields with advantageous characteristics, such as reduced waste production and a hierarchical pore structure. Herein, we demonstrate using in situ crystal Co/SiO2 to form a hierarchical catalyst with Co particles entrapped inside the ZSM-5 body via a solvent-free process. Na-type zeolite catalysts enhanced the production of gasoline-range (C5C11) products, with Co@NaZSM-5 giving a high selectivity of 68% in the FischerTropsch synthesis. Obviously, all characterizations showed that these solvent-free synthesized samples had high crystallization and a high surface area for mass transfer. This hierarchical zeolite has the potential to be applied to other similar materials owing to its convenient synthesis method, features, and outstanding results.

Journal

Catalysis Science & TechnologyRoyal Society of Chemistry

Published: May 9, 2018

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