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Production of phenols from lignin-derived slurry liquid using iron oxide catalyst

Production of Phenols from Lignin-derived Slurry Liquid using Iron Oxide Catalyst.pdf642.95 kBPDF見る/開く

タイトル: Production of phenols from lignin-derived slurry liquid using iron oxide catalyst
著者: Yoshikawa, Takuya 著作を一覧する
Shinohara, Satoshi 著作を一覧する
Yagi, Taichi 著作を一覧する
Ryumon, Naonori 著作を一覧する
Nakasaka, Yuta 著作を一覧する
Tago, Teruoki 著作を一覧する
Masuda, Takao 著作を一覧する
キーワード: Biomass utilization
Lignin conversion
Iron oxide catalyst
High pressure flow reactor
発行日: 2014年 3月
出版者: Elsevier science bv
誌名: Applied catalysis b-environmental
巻: 146
開始ページ: 289
終了ページ: 297
出版社 DOI: 10.1016/j.apcatb.2013.03.010
抄録: A two-step process consisting of depolymerization and catalytic cracking without hydrogen addition was carried out to produce phenols from lignin. In the first step, lignin was depolymerized using a silica-alumina catalyst in a water/1 -butanol solution at 623 K for 2 h. After the reaction, lignin-derived slurry liquid was obtained in 67 C-mol% yield. From the model studies, it was considered that lignin was mainly depolymerized via hydrolysis of aryl ether bonds between lignin units. For the second step, the catalytic reaction of the 1-butanol phase of the slurry liquid was carried out over an iron oxide catalyst using a high pressure fixed-bed flow reactor at 673 K. The catalytic reaction under high pressure steam conditions was effective for the suppression of the formation of solid products. In addition, the recovery fraction of phenols increased as the F-H2O/F value (the flow rate ratio of steam to the slurry liquid) increased, resulting in 17% of phenols at F-H2O/F = 5 for 2-4h. From the model studies and our previous results, catechol and methoxyphenol in the slurry liquid were considered to be converted into phenols, cresols and other alkyl phenols over the iron oxide catalyst. (C) 2013 Elsevier B.V. All rights reserved.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 多湖 輝興


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