Dehydrogenation of Methanol to Formaldehyde by ZnO–SiO2 and Zn2SiO4 Catalysts

doi:10.1016/S0167-2991(09)61288-X

Studies in Surface Science and Catalysis

Volume 44, 1989, Pages 139-146

https://doi.org/10.1016/S0167-2991(09)61288-X Get rights and content

Abstract

To develop a new process for non–aqueous formaldehyde (FA) production, vapor phase dehydrogenation of methanol over zinc-based catalysts was studied. Silica-supported ZnO catalyst, prepared by calcining SiO₂ impregnated with zinc nitrate, exhibited a FA selectivity of 90% at a methanol conversion of 50%. The main side reaction was the decomposition to carbon monoxide and hydrogen; mechanistic studies indicated that the decomposition proceeds via FA. ZnO was gradually reduced causing deterioration of the catalyst. Zinc silicate, Zn₂SiO₄, prepared from zinc nitrate and ammonium silicate and calcined at 1000°C exhibited a stable activity, with a little lower FA selectivity, for more than 500 hours owing to the greater resistance to the reduction.

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This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).
This article has been retracted at the request of the Editor-in-Chief due to duplicate publication based on parts of the authors' own article ‘The consumption, production and transportation of methanol in China: A review’ by Li-Wang Su, Xiang-Rong Li, Zuo-Yu Sun in Energy Policy, Volume 63, December 2013, Pages 130–138 with DOI: 10.1016/j.enpol.2013.08.031
One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system.
The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.
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Dehydrogenation of Methanol to Formaldehyde by ZnO–SiO2 and Zn2SiO4 Catalysts

Abstract

J. Catal.

Dehydrogenation of Methanol to Formaldehyde by ZnO–SiO₂ and Zn₂SiO₄ Catalysts