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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/16076

Title: Hydroxymethylation of Furfural to HMF with an Aqueous Formaldehyde over Zeolite Beta Catalyst
Authors: Nishimura, Shun
Shibata, Atsuki
Keywords: 2-furaldehyde
5-hydroxymethyl-2-furaldehyde
formaldehyde
hydroxymethylation
zeolite beta
Issue Date: 2019
Publisher: MDPI Publishing
Magazine name: Catalysts
Volume: 9
Number: 4
Start page: 314
DOI: 10.3390/catal9040314
Abstract: Hydroxymethylation of 2-furaldehyde (furfural) toward 5-hydroxymethyl-2-furaldehyde (HMF) was examined in this work among various zeolites with an aqueous formaldehyde as a reagent in a batch and a flow reactor system. It was found that the zeolite beta gave high activity and good reusability with calcination treatment before each run for the target reaction in the batch system. The unique stability of the HMF yield in the liquid-flow system was also observed only in the case of zeolite beta. The effect of the SiO_2/Al_2O_3 ratio in the zeolite beta suggested that hydrophobicity would be an important factor in faster hydroxymethylation with an aqueous formaldehyde reagent. The highest turnover frequency (TOF) for HMF production was found to be 2.4 h^<−1> in the case of zeolite beta with SiO_2/Al_2O_3 = 440 in the batch reactor system. An approximately 30% yield for HMF was achieved under optimum conditions for zeolite beta catalysts.
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Shun Nishimura, Atsuki Shibata, Catalysts, 9(4), 2019, 314. DOI:10.3390/catal9040314
URI: http://hdl.handle.net/10119/16076
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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