文献类型：期刊文献

英文题名：Pyrolysis of biomass Tar model compound with various Ni-based catalysts: Influence of promoters characteristics on hydrogen-rich gas formation

作者：Li, Xueqin[1,2];Liu, Peng[2];Lei, Tingzhou[2];Wu, Youqing[1];Chen, Wenxuan[2];Wang, Zhiwei[3];Shi, Jie[2];Wu, Shiyong[1,4];Li, Yanling[2];Huang, Sheng[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]Changzhou Univ, Natl Local Joint Engn Res Ctr Biomass Refining &, Inst Urban & Rural Min, Changzhou 213164, Jiangsu, Peoples R China;[3]Henan Univ Technol, Sch Environm Engn, Zhengzhou 450001, Henan, Peoples R China;[4]Ningxia Univ, Coll Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China

年份：2022

卷号：244

外文期刊名：ENERGY

收录：;EI(收录号：20220311460668);WOS:【SCI-EXPANDED(收录号:WOS:000805151300006)】；

基金：This work was supported by National Key R & D Program of China (2018YFC1901203), Natural Science Foundation of China (Nos. 51906021 and 21878096), Special Scientific Research Project for Civil Aircraft in 2020-EU China Sustainable Aviation Fuel (No. MJ-2020-D-09), and Key R & D Projects in Ningxia Hui Autonomous Region (No. 2021BEG02001).

语种：英文

外文关键词：Biomass tar; Catalytic pyrolysis; Nickel-based catalysts; Promoters; Hydrogen production

摘要：This paper studied the conditions and mechanism of hydrogen-rich gas produced from catalytic pyrolysis of toluene by various Ni-based catalysts in a fixed-bed reactor. We specifically focused on the effect of different promoters and promoter characteristics on the physicochemical properties of Ni/HZSM-5-based catalyst. The results revealed that, a similar initial activity for Ni-catalysts modified different promoters was tested with toluene conversion higher than 85%. The Fe-modified Ni/HZSM-5 catalyst has the most effective catalyst for hydrogen-rich gas production with the gaseous efficiency of 63.4 wt%, mainly gas (H-2, CH4) yield of 118.6 mL/g-toluene, H-2 yield of 53.4 mL/g-toluene at 800 degrees C pyrolysis for 40 min. The smaller crystal particles (3.1 nm), high surface area (219.5 m(2)/g), and sufficient loading quality (4 wt%) for Ni-Fe catalysts provided efficient active sites and promoted the pyrolysis process of toluene. The activity and stability of catalysts were also improved by Ce-modified Ni/ZSM-5 catalyst with the highest gaseous efficiency of 68.0 wt%, but the H-2 yield of 40.3 mL/g-toluene was lower. However, Ni-Mg/HZSM-5 catalyst has lowest activity and stability. The catalyst deactivation is associated with nickel sintering and coke formation. After the Ni-Fe/HZ5 catalyst was regenerated twice, it still maintained high catalytic activity. (c) 2022 Elsevier Ltd. All rights reserved.