文献类型：期刊文献

英文题名：Study on the mechanism of syngas production from catalytic pyrolysis of biomass tar by Ni-Fe catalyst in CO2 atmosphere

作者：Li, Xueqin[1,2];Liu, Peng[2];Huang, Sheng[1];Wu, Shiyong[1,3];Li, Yanling[2];Wu, Youqing[1];Lei, Tingzhou[2]

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, Inst Urban & Rural Min, Natl Local Joint Engn Res Ctr Biomass Refining & H, Changzhou 213164, Jiangsu, Peoples R China;[3]Ningxia Univ, Coll Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gree, Yinchuan 750021, Ningxia, Peoples R China

年份：2023

卷号：335

外文期刊名：FUEL

收录：;EI(收录号：20225213299672);WOS:【SCI-EXPANDED(收录号:WOS:000906570500001)】；

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

语种：英文

外文关键词：Biomass tar; Catalytic pyrolysis; Ni -Fe catalyst; CO 2 atmosphere; Synergistic effect; H 2 hydrogen

摘要：This study focused on the pyrolysis behavior of biomass tar (toluene as model compound) via Ni-Fe catalyst, and enhanced the generation of syngas in the CO2 atmosphere. The whole reaction was carried out in a two-stage fixed-bed reactor. The evolution and yield of H2, CO, total syngas, and carbon deposition were investigated by Fe loading, catalyst dosage, pyrolysis temperature, and CO2 flow rate. The results showed the catalytic pyrolysis process of toluene obtained a gas yield of 323.3 mL/g-toluene, H2 yield of 181.7 mL/g-toluene, and carbon deposition of 794.3 mg/g-catalyst with Ni-4 %Fe/HZSM-5 catalyst dosage of 16 % at 900 degrees C for 40 min. Specifically, the catalytic pyrolysis process of toluene produced 27.43 % higher total syngas, 23.52 % higher H2, 66.0 % lower carbon deposition, and 391.67 % higher CO (19.07 mL/g-toluene) in the CO2 atmosphere with 40 mL/min. Approximately 4.43 g (21.22 mL) of CO2 was consumed by pyrolysis of 1 g toluene to generate the total syngas. This provides a theoretical basis for the synergistic pyrolysis of biomass tar and CO2 in the pyrolysis/gasification process of biomass, expounds the synergistic effect of Ni-Fe/HZSM-5 catalyst and CO2, reduces greenhouse gas emissions, and realizes the recycling of resources.