Synergistic oxidation-reforming of biomass for high quality syngas production based on a bifunctional catalyst

作     者：Tao He Dan Zhang Wenqing Chen Zeng Liu Ruidong Zhao Jianqing Li Jingli Wu Zhiqi Wang Jinhu Wu 

作者机构：CAS Key Laboratory of BiofuelsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Shandong Energy InstituteQingdao 266101China Qingdao New Energy Shandong LaboratoryQingdao 266101China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Green Carbon》 (绿碳（英文）)

年 卷 期：2024年第2卷第1期

页      面：118-123页

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the financial support of the National Natural Science Foundation of China(22178366) Natural Science Foundation of Shandong Province(ZR2020MB138) Shandong Energy Institute(SEI S202103) 

主　　题：Biomass Syngas Oxidation-reforming Bifunctional Catalyst 

摘      要：Conventional O_(2)gasification for low-rank biomass/sludge conversion is prone to high CO_(2)concentrations in the syngas because of its high O content and low calorific *** study establishes a synergistic oxidationreforming reaction route for the conversion of low-rank carbon-containing resources into high-quality *** efficient oxidation-reforming reaction is based on the bifunctional catalyst NiO-Fe_(2)O_(3)/Al_(2)O_(3),which includes Fe_(2)O_(3) oxidation sites and NiO reforming *** temperature-programmed reduction,together with X-ray diffraction and X-ray photoelectron spectroscopy experiments,demonstrated that the two functional active sites have strong interactions with the support,leading to efficient cooperation between the oxidation reaction and reforming reaction with regards to both the reaction sequence and C/H/O element *** produced from biomass/sludge based on oxidation-reforming reactions has an extremely low CO_(2)concentration of approximately 3%,and the valid gas(CO,H_(2))concentration exceeds 95%.The valid gas yield of walnut shell reached 1452.9 mL/g,the total gas yield was 1507.2 mL/g,and the H_(2)/CO ratio was 1.02,which are all very close to the theoretical maximum values of 1553.1 mL/g and 1.01,respectively,demonstrating that the inherent CO_(2)/H_(2)O along with CH4/tar species were efficiently converted to H_(2)and CO through oxidation-reforming *** a 60-cycle test,NiO-Fe_(2)O_(3)/Al_(2)O_(3) exhibited good redox stability.