燃煤机组低碳化改造中生物质掺烧与氨掺烧技术比较OA

This paper systematically elucidated the fundamental principles and current engineering applications of two mainstream low-carbon combustion technologies in the thermal power sector:biomass co-firing and ammonia co-firing.It also reviewed relevant research progress and summarized the key technical challenges faced by these approaches.A comparison was made between two combustion technologies in terms of flame stability,corrosion mechanism and protection strategy,pollutant formation mechanisms and control methods.The study reveals that biomass co-firing,due to its complex fuel characteristics,is prone to inducing flame fluctuations and high-temperature chlorine-induced corrosion.However,such issues can be mitigated by optimizing blending ratios,improving combustion organization,and applying advanced surface coatings.Moreover,biomass co-firing exhibits synergistic potential with existing environmental protection facilities in terms of particulate matter and acid gas emissions.In contrast,ammonia co-firing faces challenges such as poor flame stability,risks of hydrogen embrittlement in materials,and a significant increase in NOx emissions,which require modifications to burner structures,upgrades in corrosion-and embrittlement-resistant materials,and the development of more efficient denitrification and neutralization technologies.In conclusion,biomass co-firing is more suitable for medium-term to short-term low-carbon retrofitting of existing units,while ammonia co-firing,as a strategic technology for enabling a long-term zero-carbon power system,requires the reconstruction of fuel supply chains and pollution control systems.