Effect of H-ZSM-5 zeolite content on the intrinsic kinetics of methanol dehydration to dimethyl ether over H-ZSM-5/Al2O3 molded catalyst

Alexey Zhokh; Andrey Trypolskyi; Valentina Gritsenko; Peter Strizhak

doi:10.1039/D1RE00468A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Effect of H-ZSM-5 zeolite content on the intrinsic kinetics of methanol dehydration to dimethyl ether over H-ZSM-5/Al₂O₃ molded catalyst†

Alexey Zhokh,

*^a Andrey Trypolskyi,^a Valentina Gritsenko^a and Peter Strizhak

Author affiliations

* Corresponding authors

^a L.V. Pisarzhevskii Institute of Physical Chemistry of National Academy of Sciences of Ukraine, Prospekt Nauki, 31 Kiev, Ukraine
E-mail: al.zhokh@gmail.com

Abstract

A series of H-ZSM-5/Al₂O₃ molded catalysts with various zeolite/alumina ratios has been prepared and their catalytic activity in methanol dehydration to dimethyl ether has been studied. Based on the Langmuir–Hinshelwood formalism, several kinetic models involving associative and dissociative mechanisms of methanol adsorption have been investigated. The kinetic parameters of the models have been estimated. The mechanism of methanol adsorption (associative or dissociative) is not sensitive to catalyst composition. The latter also affects the activation energy and methanol adsorption enthalpy, which are associated with the dilution of zeolite acid sites in the alumina matrix. In contrast, preexponential factors exhibit no sensitivity to catalyst composition.

Download options Please wait...

Supplementary files

Supplementary information PDF (385K)

Article information

DOI: https://doi.org/10.1039/D1RE00468A
Article type: Paper
Submitted: 22 Oct 2021
Accepted: 06 Dec 2021
First published: 06 Dec 2021

Download Citation

React. Chem. Eng., 2022,7, 663-673

Permissions

Request permissions

Effect of H-ZSM-5 zeolite content on the intrinsic kinetics of methanol dehydration to dimethyl ether over H-ZSM-5/Al₂O₃ molded catalyst

A. Zhokh, A. Trypolskyi, V. Gritsenko and P. Strizhak, React. Chem. Eng., 2022, 7, 663 DOI: 10.1039/D1RE00468A

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.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Reaction Chemistry & Engineering