锅炉技术2026，Vol.57Issue(1)：12-17,54,7.
CO对高温富燃料区NH3脱硝特性的影响
Influence of CO on Denitration Characteristics of NH3 in High-Temperature Fuel Rich Zone
摘要
Abstract
Based on the high-temperature tubular flow reactor system,the influence of CO on the denitration characteristics of NH3 in the high-temperature fuel rich zone was studied within the range of 850-1 450 ℃ and 0％—1.0％O2 volumetric concentration,and the impact mechanism of CO on the NH3-NO reaction characteristics was revealed based on chemical kinetics analysis.The results show that with the decrease in O2 concentration,the temperature window for NO reduction shifts toward higher zone,which can break the limitation of the traditional SNCR temperature,and can still achieve efficient NO reduction at temperatures above 1 100 ℃.In the absence of oxygen,CO has no significant effect on the NH3-NO reaction characteristics.In the presence of oxygen,the oxidation process of CO promotes the generation of OH radicals,causing the optimal temperature for NO reduction to shift towards lower temperatures by about 10-30 ℃,and the denitration temperature window to be slightly narrower.Meanwhile,due to the promotion effect of CO on NH2 radical oxidation,the peak of NO reduction efficiency decreases by about 1.82％—4.90％.关键词
CO/高温富燃料区/NH3-NO反应特性/影响机制Key words
CO/high-temperature fuel rich zone/NH3-NO reaction characteristics/impact mechanism分类
能源科技引用本文复制引用
朱志祥,张忠孝,乌晓江,于娟,郭欣维,周政辉..CO对高温富燃料区NH3脱硝特性的影响[J].锅炉技术,2026,57(1):12-17,54,7.基金项目
国家自然科学基金联合基金重点支持项目(U20A20321) （U20A20321）
