文献类型：期刊文献

英文题名：Selective catalytic conversion of waste lignocellulosic biomass for renewable value-added chemicals via directional microwave-assisted liquefaction

作者：Feng, Junfeng[1,2] Jiang, Jianchun[1] Hse, Chung-yun[2] Yang, Zhongzhi[1] Wang, Kui[1,3] Ye, Jun[1] Xu, Junming[1]

第一作者：Feng, Junfeng

通信作者：Xu, JM[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]US Forest Serv, USDA, Southern Res Stn, Pineville, LA 71360 USA;[3]Chinese Acad Forestry, Res Inst Forestry New Technol, Beijing 100091, Peoples R China

年份：2018

卷号：2

期号：5

起止页码：1035-1047

外文期刊名：SUSTAINABLE ENERGY & FUELS

收录：;EI(收录号：20181905166655);Scopus(收录号：2-s2.0-85062020793);WOS:【SCI-EXPANDED(收录号:WOS:000431422700013)】；

基金：The authors thank National Nonprofits Institute Research Grant (CAFYBB2018QC001) and the Forestry Industry Research Special Funds for Public Welfare Projects (201504602) for supported our study. The authors gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (31530010 and 31600590) and Research Grant of Jiangsu Province Biomass Energy and Materials Laboratory (JSBEM-S-201701) for this investigation.

语种：英文

外文关键词：Cellulose - Fuel additives - Liquefaction - Microwaves - Solutions

摘要：Selective catalytic conversion of biomass waste for producing methyl levulinate (MLA) via directional microwave-assisted liquefaction was investigated. The goal of the study was to develop a directional liquefaction process using dielectric heating with microwave energy. The methanolysis of biomass into methyl levulinate was studied in the presence of several acid catalysts. The C6 sugar substrates in biomass were successfully converted into methyl levulinate under the optimized conditions (180 degrees C, 40 min) with a yield of 29.39 wt%. 5-Hydroxymethyl furfural, glucose, fructose, cellobiose, corn starch, and microcrystalline cellulose were selected as models for directional microwave-assisted liquefaction. Therefore, the possible reaction pathway of biomass to methyl levulinate could be investigated. The selective catalytic conversion of biomass was found to be highly efficient for the generation of MLA (reaching a maximum yield of approximately 30 wt%), higher than the levulinic acid yield (14 wt%) in aqueous solution under the same reaction conditions. The results suggested that directional microwaveassisted liquefaction is an effective method that can produce a high value-added fuel additive (methyl levulinate) from lignocellulosic biomass under designated reaction processes.