Selective production of 4-ethylphenolics from lignin via mild hydrogenolysis.
Selective production of 4-ethylphenolics from lignin via mild hydrogenolysis.
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DOI：
10.1016/j.biortech.2012.05.127
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发表时间：
2012-08
影响因子：
11.4
通讯作者：
Yueyuan Ye;Yu Zhang;Juan Fan;Jie Chang
中科院分区：
文献类型：
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作者：
Yueyuan Ye;Yu Zhang;Juan Fan;Jie Chang
本文报道了木质素经温和氢解选择性制备4-乙基酚的方法。木质素的氢解是在高压釜中进行的，其中65体积%的木质素是氢解产物。以乙醇/水为溶剂，以5%的Ru/C、Pd/C和Pt/C为催化剂。考察了催化剂、木质素种类以及反应温度、反应时间和初始氢气压力等反应条件对目标化合物产率的影响。玉米秸秆木质素氢解可同时得到质量分数为3.1%的4-乙基苯酚和1.3%的4-乙基愈创木酚，其产率与石油化工路线的产率相近。研究结果表明，该方法是一种很有前途的替代石油化工路线的技术。
Selective production of 4-ethylphenolics from lignin via mild hydrogenolysis was reported in this short communication. The hydrogenolysis of lignin was carried out in an autoclave with 65 vol.% ethanol/water as solvent, with 5% Ru/C, Pd/C and Pt/C as catalysts. The influences of catalysts, lignin species, and reaction conditions including reaction temperature, reaction time, and initial H2pressure on yield of target compounds were investigated. 3.1% 4-Ethylphenol and 1.3% 4-ethylguaiacol based on lignin could be obtained simultaneously from hydrogenolysis of corn stalk lignin, which is approximate to the yield obtained from petrochemical route. The results of this work showed that this novel method is a quite promising technique for the substitution of petrochemical route.