文献类型：期刊文献

英文题名：Co-liquefaction behavior of corn straw and Shengli lignite

作者：Li, Liang[1];You, Quan[1];Wu, Shiyong[1,2];Huang, Sheng[1,2];Wu, Youqing[1,2];Gao, Jinsheng[1,2]

机构：[1]East China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：89

期号：3

起止页码：335

外文期刊名：JOURNAL OF THE ENERGY INSTITUTE

收录：;EI(收录号：20165103132972);WOS:【SCI-EXPANDED(收录号:WOS:000380593800004)】；

基金：This work was supported by the Natural Scientific Foundation of China (21476080, 21476079), the National High Technology Research and Development Program of China (2012AA101810) and the Fundamental Research Funds for the Central Universities (WA1214037, WB1414014).

语种：英文

外文关键词：Co-liquefaction; Co-pyrolysis; Lignite; Biomass

摘要：In this study, the co-pyrolysis and co-liquefaction properties of corn straw (CS) and Shengli lignite (SL) were investigated. Individual liquefaction and co-liquefaction of CS and SL were performed and the characterization of co-liquefaction products was tested. The synergetic effect was discussed. The pyrolysis of SL can be obviously promoted by addition of CS, resulting in the larger weight loss of their blends compared to calculated values of their individual pyrolysis. The individual liquefactions of CS and SL show that CS gives much higher liquefaction conversion than SL at the same liquefaction conditions. During the co-liquefaction of CS and SL, there exists an obviously synergistic effect, which may be attributed to that free radicals or intermediates produced by thermally degradation of CS at low temperature aid the depolymerization of SL, and that the new-formed free radicals or intermediates from co-liquefaction can be easily decomposed and hydrogenated. The characterization of asphaltene and preasphaltene shows that the heteroatom-contained structure in asphaltene and the aliphatic structures in preasphaltene prefer to convert into lighter product compared to individual liquefaction of CS and SL. The largest enhancements in conversion of 8.67% and oil yield of 6.46% were obtained at 4/6 and 6/4 blend ratio of CS/SL among different blends, respectively, with 375 degrees C temperature, 30 min reaction time and 4 MPa initial pressure. (C) 2015 Energy Institute. Published by Elsevier Ltd. All rights reserved.