文献类型：期刊文献

英文题名：Renewable platform chemicals from directional microwave-assisted liquefaction coupling stepwise extraction of waste biomass

作者：Feng, Junfeng[1,2] Hse, Chungyun[2] Yang, Zhongzhi[1] Wang, Kui[2] Jiang, Jianchun[1] Xu, Junming[3]

第一作者：Feng, Junfeng

通信作者：Jiang, JC[1];Xu, JM[2]

机构：[1]Chinese Acad Forestry, Key & Open Lab Forest Chem Engn, Natl Engn Lab Biomass Chem Utilizat,SFA, Key Lab Biomass Energy & Mat,Inst Chem Ind Forest, 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：2017

卷号：244

起止页码：496-508

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20173204037838);Scopus(收录号：2-s2.0-85026906165);WOS:【SCI-EXPANDED(收录号:WOS:000410545300060)】；

基金：The authors gratefully acknowledge the financial support provided by the Forestry Industry Research Special Funds for Public Welfare Projects (201504602) for this investigation. The authors also thank the National Natural Science Foundation of China (31530010) for this investigation. Junfeng Feng (201603270027) would like to acknowledge the fellowship from the China Scholarship Council (CSC).

语种：英文

外文关键词：Microwave-assisted liquefaction; Aromatics; Monosaccharides; Stepwise precipitation and extraction

摘要：Directional microwave-assisted liquefaction and stepwise extraction are introduced for producing platform chemicals: aromatics and monosaccharides. When sulfuric acid was used as a catalyst, a 45% monosaccharides yield and a 29% aromatics yield were obtained from bamboo with 0.3 g catalyst per 18 g methanol and 2 g bamboo at 160 degrees C with 10 min. Approximately 78-86 wt% of the six biomass materials were converted into liquid products. After the stepwise extraction and precipitation process, the yields of monosaccharide derivatives and three phenolic compound fractions were 39-45% and 28-32%, respectively. Monosaccharides from holo-cellulose collected with a high purity of methyl glycosides were higher than 90%. Aromatic derivatives with different weight-molecular distributions were separated into three fractions with more than 80% phenolics. As their similar chemical properties within each fraction, platform chemicals have great commercial potential for producing high-quality chemicals and biofuels using mild upgrading conditions.