文献类型：期刊文献

英文题名：Enhanced aromatic hydrocarbon production from bio-oil hydrotreating-cracking by Mo-Ga modified HZSM-5

作者：Cai, Qinjie[1];Yu, Taili[1];Zhang, Suping[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2020

卷号：269

外文期刊名：FUEL

收录：;EI(收录号：20200908221682);WOS:【SCI-EXPANDED(收录号:WOS:000520021800028)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 51606069), the National Key R&D Program of China (Grant No. 2018YFB1501601), Fundamental Research Funds for the Central Universities (Grant No. 222201814054) and China Postdoctoral Science Foundation (Grant No. 2016M591616).

语种：英文

外文关键词：Bio-oil; Aromatic hydrocarbon; Hydrotreating-cracking; Mo-Ga modified HZSM-5; Methanol

摘要：Because the bio-oil is highly unsaturated, the upgrading of bio-oil by zeolite cracking faces the problem of severe carbonaceous deposition on catalysts. Therefore, the dual-stage hydrotreating-cracking process is considered to be more practical for bio-oil upgrading. This work focused on a bio-oil hydrotreating-cracking process cofed with methanol, and the modification of cracking catalyst for enhanced aromatic hydrocarbon generation was investigated. Mo-Ga/HZSM-5 exhibited better performance than HZSM-5 on aromatic hydrocarbon production, owing to the synergistic effect of Mo species, Ga2O3 and acidic sites on HZSM-5. In the cracking stage, this synergistic effect activated the hydrotreating-derived CH(4 )and thereby enabled it to participate in aromatization reactions; and it also facilitated the conversion of alkene intermediates to aromatic hydrocarbons by inhibiting C-2-C(4 )alkane formation and promoting aromatization reactions. 5Mo-2Ga/HZSM-5 was an efficient cracking catalyst in hydrotreating-cracking, both for the simulated bio-oil fraction and the actual bio-oil aqueous fraction.