Hydrogenolysis of organosolv hydrolyzed lignin over high-dispersion Ni/Al-SBA-15 catalysts for phenolic monomers  

作　　者：Ying Xu Pengru Chen Wei Lv Chenguang Wang Longlong Ma Qi Zhang 

机构地区：[1]Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China [2]Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangzhou 510640,China [3]Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China [4]Jiangsu Key Laboratory for Biomass Energy and Material,Nanjing 210042,China

出　　处：《Chinese Journal of Chemical Engineering》2021年第4期307-314,共8页中国化学工程学报（英文版）

基　　金：the National Natural Science Foundation of China(No.51676191&5181101221);Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(No.2017BT01N092);“Transformational Technologies for Clean Energy and Demonstration”,Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA 21060102);Jiangsu Key Laboratory for Biomass Energy and Material(JSBEM201905).

摘　　要：Efficiency and recycling of catalysts are important for the lignin hydrogenolysis to obtain phenolic monomers.In this work,a series of highdispersion Ni/AlSBA15 catalysts were prepared by a direct and effective preparation method,and then used in the hydrogenolysis of diphenyl ether(DE)and organosolv hydrolyzed lignin(OHL)for phenolic monomers.The universality of asmade catalysts in different solvents and cyclic performance were investigated.Results showed that the addition of ethylene glycol(EG)during the loading process of Ni promoted the dispersion of metal efficiently.High dispersion of Ni species could highly enhance the conversion of DE and the OHL which Ni/AlSBA15(1EG)exhibited the excellent catalytic performance.Decalin was found to be most effective solvent on the conversion of DE(99.16%).84.77%liquefaction ratio and 21.36%monomer yield were achieved,and no obvious char was observed after the depolymerization of OHL in ethanol solvent at 280℃for 4 h over the Ni/AlSBA15(1EG)catalyst.

关 键 词：LIGNIN Hydrogenolysis depolymerization High-dispersion Ni-based catalyst Al-SBA-15 

分 类 号：TQ426[化学工程]