文献类型：期刊文献

英文题名：Upgrading of Bio-Oil Aqueous Fraction by Dual-Stage Hydrotreating-Cocracking with Methanol

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

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

年份：2017

卷号：5

期号：7

起止页码：6329

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20172803927466);WOS:【SCI-EXPANDED(收录号:WOS:000405139100080)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 51606069) and China Postdoctoral Science Foundation (Grant No. 2016M591616).

语种：英文

外文关键词：Bio-oil aqueous fraction; Upgrading; Liquid hydrocarbon; Hydrotreating-cocracking; Methanol; Hydrogen supply

摘要：Upgrading of the bio-oil aqueous fraction (BAF) for liquid hydrocarbon production was studied in this work. Hydrotreating pretreatment and methanol cocracking were combined as a dual-stage hydrotreating cocracking process to overcome the severe coking problem caused by the hydrogen-lacking property of BAF. The influences of hydrotreating temperature, reaction pressure, and BAF/methanol ratio in feedstock were investigated. It was found that the hydrogenation efficiencies of phenols in BAF were elevated with increases in hydrotreating temperature and reaction pressure, which were important for maintaining cracking catalyst activity. However, a too high hydrotreating temperature significantly enhanced the gasification reaction and led to reduction in the final liquid hydrocarbon yield. Meanwhile, an excessively high BAF/methanol ratio obviously accelerated the deactivation of the cracking catalyst. The comparison of different cracking processes showed that dual-stage hydrotreating cocracking was the most superior in stable liquid hydrocarbon generation. Finally, the reaction mechanism was proposed based on experimental results.