PILOT-SCALE EXPERIMENTAL STUDY OF SELECTIVE NON-CATALYTIC REDUCTION PROCESS BY USING DIFFERENT REDUCING REAGENT
The experiments of selective non-catalytic reduction process were carried out in CRF(Combustion Research Facility). Urea, ammonia liquor, ammonium carbonate and ammonium bicarbonate were used as reducing agent to reduce NOx in the flue gas. The reducing agent was injected into the furnace of CRF through an atomizing nozzle. The experimental results show that the NO reduction increases with increase of the ratio of nitrogen in the reducing agent and in NO(β) for the specific reducing reagent. For urea, ammonia liquor and ammonium carbonate, with β between 1.0 ～2.5, the NO removal efficiencies are 65～89％, 62～86％ and 45～84％, respectively. For ammonium bicarbonate, with β between 0.8～1.5, 46～73％ NO removal efficiency is obtained. For the different reducing reagents, the temperature windows are different. The results show that the optimum temperature of urea is highest and ammonia liquor is lowest.
urea ammonia liquor ammonium carbonate ammonium bicarbonate NOz
Kefu LI Qingxi CAO Shaohua WU Zhenzhong LI Yang WANG Yukun QIN
Institute of Combustion Engineering,Harbin Institute of Technology,Harbin,Heilongjiang,China The State technology research center of power plant,Shenyang 110034,Liaoning,China
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
459-464
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）