文献类型：期刊文献

英文题名：Production of aromatic hydrocarbons by hydrogenation-cocracking of bio-oil and methanol

作者：Zhang, Suping[1];Xu, Jia[1];Cai, Qinjie[1];Cui, Yu[1]

机构：[1]East China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：161

起止页码：232

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;EI(收录号：20171603588659);WOS:【SCI-EXPANDED(收录号:WOS:000401047600028)】；

基金：The work was supported by the National Natural Science Foundation of China (51176049), the National Key Technology R&D Program (2014BAD02B03), China Postdoctoral Science Foundation (2016M591616) and the Program for New Century Excellent Talents in University (NCET-11-0642).

语种：英文

外文关键词：Bio-oil; Furfural; Aromatic hydrocarbons; Hydrogenation-cocracldng; Hydrogen supply

摘要：The hydrogen-lacking characteristic of bio-oil leads to a low yield of desired product and easy coke formation during its cracking for aromatic hydrocarbon generation. Therefore, an improved hydrogenation-cocracking process which could supply hydrogen in two stages to enhance aromatic hydrocarbon production was developed in this study. Furfural was chosen as the model compound of bio-oil to be coprocessed with methanol, and hydrogen supply behavior was regulated by varying hydrogenation temperature and methanol coprocessing ratio in the feedstock. The results showed that raising hydrogenation temperature in the range of 150-250 degrees C increased the hydrogenation degree and thus facilitated aromatic hydrocarbon production in the cracking stage. However, a further increase of temperature to 300 degrees C caused low-reactivity saturated gaseous hydrocarbon production, which decreased the ultimate oil phase yield. The increase of methanol coprocessing ratio in feedstock strengthened the hydrogen supply in the cracking stage, which could promote the deoxygenation of furanic ring and consequently increased aromatic hydrocarbon yield and reduced coke formation. By coprocessing 25% furfural and 75% methanol with a hydrogenation temperature of 250 degrees C, the oil phase yield reached 26.4% with an aromatic hydrocarbon content of 94.4%. Finally, the hydrogenation-cocracking mechanism was proposed according to the experimental results. (C) 2016 Elsevier B.V. All rights reserved.