Hydrodeoxygenation of lignin model compounds over a copper chromite catalyst
Hydrodeoxygenation of lignin model compounds over a copper chromite catalyst
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DOI：
10.1016/j.apcata.2012.09.047
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发表时间：
2012-12-07
影响因子：
5.5
通讯作者：
Shanks, Brent H.
中科院分区：
文献类型：
--
作者：
Deutsch, Keenan L.;Shanks, Brent H.
苄醇、苯酚、苯甲醚、邻甲酚、邻苯二酚、愈创木酚和香草醇的加氢脱氧在150 - 275 ℃、50巴H-2下用CuCr 2 O 4中心点CuO催化剂在十氢化萘溶剂中进行。发现苯甲醇的羟甲基对氢解形成甲苯具有高度反应性。苯甲醚的脱甲氧基形成苯被发现是与脱甲基和烷基转移反应相反的主要反应途径，这对于常规加氢处理催化剂更普遍。苯酚的羟基强烈活化芳环，使其加氢形成环己醇，环己醇随后脱水和加氢形成环己烷。越来越复杂的反应网络设计的主要官能团和集成来描述最复杂的分子研究，香草醇。(C)2012爱思唯尔有限公司版权所有。
The hydrodeoxygenation of benzyl alcohol, phenol, anisole, o-cresol, catechol, guaiacol, and vanillyl alcohol were carried out from 150 to 275 degrees C at 50 bar H-2 with a CuCr2O4 center dot CuO catalyst in a decalin solvent. The hydroxymethyl group of benzyl alcohol was found to be highly reactive towards hydrogenolysis to form toluene. Demethoxylation of anisole to form benzene was found to be the primary reaction pathway in contrast to demethylation and transalkylation reactions, which are more prevalent for conventional hydrotreating catalysts. The hydroxyl group of phenol strongly activated the aromatic ring towards hydrogenation forming cyclohexanol which was subsequently dehydrated and hydrogenated to form cyclohexane. Reaction networks of increasing complexity were devised for the major functional groups and integrated to describe the most complex molecule studied, vanillyl alcohol. (C) 2012 Elsevier B.V. All rights reserved.