NaOH协同Ni/碳催化解聚木质素制备芳香化合物的研究  

Research on the catalytic depolymerization of lignin into aromatic compounds by hydrogenolysis of NaOH and Ni/C

作　　者：王文锦 周列 吕微[1,2] 徐莹[1,2] 王晨光[1,2] 马隆龙[1,2] WANG Wen-jin;ZHOU Lie;LÜ Wei;XU Ying;WANG Chen-guang;MA Long-long(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beijing 100871,China)

机构地区：[1]中国科学院广州能源研究所,广东广州510640 [2]中国科学院可再生能源重点实验室,广东广州510640 [3]中国科学院大学,北京100871

出　　处：《应用化工》2022年第3期617-621,共5页Applied Chemical Industry

基　　金：中国科学院战略性先导科技专项(A)(XDA21060102);国家自然科学基金委员会与泰国国家研究理事会“可再生能源”领域合作研究项目(5181101221);广东省“珠江人才计划”本土创新科研团队项目资助(2017BT01N092)。

摘　　要：基于不同酸/碱均相催化剂与Ni/碳催化剂协同催化解聚木质素的研究,考察了均相路易斯酸、均相碱催化剂的种类等对木质素解聚活性及产物分布的影响。结果表明,NaOH协同Ni/MLG(镍/多层石墨)催化剂解聚木质素所得芳香化合物的收率较高,优于其他催化剂的单独使用及相互匹配的催化效果;路易斯酸作为均相催化剂与Ni/MLG协同催化解聚木质素时,更利于苯醇类和愈创木酚类的生成;碱作为均相催化剂与Ni/MLG协同催化时,生成较多的苯醇类和芳烃类产物。为木质素高值利用催化剂的研制和开发提供了参考。The depolymerization of lignin over different acid/base homogeneous catalysts and Ni/C was studied.The effects of Lewis acid and base on the influence of lignin conversion and aromatics yield were investigated.The result showed that the yield of aromatics from lignin was higher when NaOH and Ni/MLG(nickel/multilayer graphite)as catalysts than others.Moreover,the yield of phenols and guaiacols increased when Lewis acid and Ni/MLG as catalysts.And the yield of phenyl alcohols and arenes increased when alkali and Ni/MLG as catalysts.This article will provide a reference for the research of high-value utilization of lignin.

关 键 词：木质素 解聚 NI基催化剂 均相催化剂 芳香化合物 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TK6[动力工程及工程热物理—生物能]