NUMERICAL SIMULATION ON HYDROCARBON TRANSFORMING MECHANISM DURING COAL REBURNING
On the basis of GRI3.0 database, numerical simulation of hydrocarbon transforming mechanism using sensitive analysis method of CHEMKIN was discussed. The results show that H, O and OH are activated groups which are necessary to startup a series of important radicel reactions. Light hydrocarbon does not have reducing functions on NO with itself. Generally, they are transformed into CHi, which could react with NO to reduce NO emission effectively. CH3 is the main reductive component while CHi reacts with NO and reduces it directly. The main final reacting product is HCN which has promoter action for NO reduction. On the contrary, when O, O2 and other oxidizers exist, these hydrocarbon groups may be directly oxidized into CO, CO2, and so on. In a certain extent, these might cut down NO reduction efficiency.
Sensitivity analysis Radicel reaction Hydrocarbon Transforming mechanism
Junjie FAN Zhongxiao ZHANG Jing JIN
Institute of Combustion and Gasification Engineering, College of Power Engineering, University of Shanghai for Science & Technology, Shanghai, China, 200093
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
680-685
2007-12-01(万方平台首次上网日期,不代表论文的发表时间)