Direct Conversion of Methane to Methanol over Copper-Exchanged Zeolite under Mild Conditions
Publication: Journal of Energy Engineering
Volume 146, Issue 6
Abstract
Direct methane-to-methanol (MTM) conversion in a stepwise process under mild conditions has been widely studied. Nevertheless, suitable catalysts and reaction processes for industrial applications have remained elusive. Recently, small-pore copper-exchanged zeolites [copper ion–exchanged mordenite (Cu-MOR)] have been reported as the most effective catalysts for MTM reaction, which necessitates enhancement of active sites in the catalysts and protection of methanol from overoxidation. Herein, we attempt to optimize the catalyst material compositions of Cu-MOR and to optimize the pretreatment and reaction conditions during MTM tests. We investigated effects of copper composition, catalyst activation time, and activation temperature. Rationalizing the catalyst compositions and reaction conditions achieved methanol productivity as high as Cu ( catalyst). We also simplified the catalyst treatment and reaction procedure, which resulted in methanol yield increase.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
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Published In
Journal of Energy Engineering
Volume 146 • Issue 6 • December 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Apr 3, 2020
Accepted: Jul 6, 2020
Published online: Sep 4, 2020
Published in print: Dec 1, 2020
Discussion open until: Feb 4, 2021
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