文献类型：期刊文献

英文题名：Metal-Loaded ZSM-5 Catalysts for Biomass Pyrolysis Denitrogenation: Nitrogen Migration, Catalyst Deactivation, and Sulfur Resistance

作者：Xu, Qing[1,2];Chen, Yanxu[1];Xian, Shengxian[1,2];Wu, Yujian[1];Li, Haowei[1,2];Zhang, Zongliang[1];Chen, Baokang[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China

年份：2026

卷号：16

期号：8

外文期刊名：CATALYSTS

收录：SCI-EXPANDED(收录号：WOS:001858700800001)、、WOS

基金：This work was supported by the National Natural Science Foundation of China (No.52476190), the National Natural Science Foundation of China (No.52376171), Joint Training Demonstration Base Project for Graduate Students of "Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences" in Guangdong Province, Guangdong Basic and Applied Basic Research Foundation (2023A1515110541), Guangdong Basic and Applied Basic Research Foundation (2025A1515010722), Characteristic and Innovative Projects of General Institutions of Higher Education in Guangdong Province (2025KTSCX044), Youth S&T Talent Support Programme of Guangdong Provincial Association for Science and Technology (SKXRC2025404), Zhanjiang Non-Funded Science and Technology Research Program Projects (2025B01054), Guangdong Basic and Applied Basic Research Foundation (2024A1515010637), Zhanjiang Marine Youth Talent Innovation Project (Grant No. 2024R3002).

语种：英文

外文关键词：biomass pyrolysis; denitrogenation; ZSM-5; nitrogen migration; catalyst deactivation; sulfur resistance

外文摘要：Thermochemical conversion of nitrogen- and sulfur-rich biomass-derived wastes, such as sewage sludge, algae, and agricultural residues, is a promising route for renewable fuel production and waste valorization. However, fuel-bound nitrogen can be released as NH3, HCN, and HNCO, while sulfur species such as H2S, SO2, and COS accelerate catalyst deactivation and generate NOx/SOx precursors. Metal-loaded ZSM-5 catalysts are attractive for clean catalytic pyrolysis because they combine the MFI pore confinement and tunable Br & oslash;nsted/Lewis acidity of ZSM-5 with the hydrogen transfer, dehydrogenation, cracking, redox, and sulfur-tolerance functions of metal species. This review critically summarizes recent advances in metal-loaded ZSM-5 catalysts for catalytic denitrogenation of biomass-derived solid wastes. The formation and migration of NH3, HCN, HNCO, tar-N, and char-N are first discussed to clarify the chemical basis of fuel-N conversion. The effects of ZSM-5 pore structure, acid-site distribution, Si/Al ratio, hierarchical porosity, and synergy on adsorption, diffusion, C-N bond cleavage, heterocyclic-N ring-opening, aromatization, and nitrogen redistribution are then analyzed. Catalyst deactivation under realistic pyrolysis atmospheres is also highlighted, including coke deposition, metal sintering, framework dealumination, mineral poisoning, and H2S/SO2/COS-induced sulfur poisoning. Finally, future directions are proposed for designing multifunctional ZSM-5-based catalysts integrating denitrogenation activity, sulfur resistance, coke resistance, regenerability, and quantitative nitrogen/sulfur mass balance.