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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/16076
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| タイトル: | Hydroxymethylation of Furfural to HMF with an Aqueous Formaldehyde over Zeolite Beta Catalyst |
| 著者: | Nishimura, Shun
Shibata, Atsuki |
| キーワード: | 2-furaldehyde
5-hydroxymethyl-2-furaldehyde
formaldehyde
hydroxymethylation
zeolite beta |
| 発行日: | 2019 |
| 出版者: | MDPI Publishing |
| 誌名: | Catalysts |
| 巻: | 9 |
| 号: | 4 |
| 開始ページ: | 314 |
| DOI: | 10.3390/catal9040314 |
| 抄録: | 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 |
| 資料タイプ: | publisher |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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