Activity and Deactivation of ZSM–5 Catalysts in the Dimethyl Ether Synthesis from CO and H2 and Methanol Dehydration

Pavel Musich; Lubov Shilyaeva; Larisa Kurina; Alexander Vosmerikov; Natalia Kosova

doi:10.4028/www.scientific.net/KEM.683.406

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 683Activity and Deactivation of ZSM–5 Catalysts in...

Activity and Deactivation of ZSM–5 Catalysts in the Dimethyl Ether Synthesis from CO and H₂ and Methanol Dehydration

Abstract:

The increasing demand for producing dimethyl ether from synthesis gas explains the renewed interest in studying the activity and stability of catalysts. In the present work, resource catalytic testing of ZSM-5 zeolites was carried out in the one-step synthesis of dimethyl ether from synthesis gas for 120 hours. Formation of condensation products was observed on zeolite surface after catalytic tests which leads to lower catalytic activity of samples. Condensation products were investigated by thermal analysis in an oxidizing atmosphere. Textural characteristics of zeolites before and after reaction were investigated. It was shown that methanol significantly contribute to formation of condensation products on the catalyst surface in the process of dimethyl ether production.

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Periodical:

Key Engineering Materials (Volume 683)

Pages:

406-414

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.683.406

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Online since:

February 2016

Authors:

Pavel Musich, Lubov Shilyaeva, Larisa Kurina, Alexander Vosmerikov, Natalia Kosova

Keywords:

Activity, Cu/Zn/Al, Deactivation, Dimethyl Ether, Methanol Dehydration, Regeneration, Synthesis Gas, Zeolite, ZSM–5

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