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Experiment on NOx reduction by advanced reburning in cement precalciner
Li S(李森); Ge YF(葛逸飞); Wei XL(魏小林)
发表期刊FUEL
2018-07-15
卷号224页码:226-231
ISSN0016-2361
摘要

Experiment on NOx reduction by advanced reburning in cement precalciner was performed on a laboratory-scale circulating fluidized bed reactor. In reburning zone, the order of the adsorption ability on CaO surface is CO2 > NO > CO, CO2 occupies a large fraction of the active sites to inhibits NO reduction by CO, the decrement of NO reduction rate is about 35% when CO2 increases from 15% to 30%, and the increment of NO reduction rate is about 40% when temperature increases from 850 degrees C to 1050 degrees C. In SNCR zone, CO2 concentration has an optimal range (25-27%) due to the competitive adsorption of CO2 and NH3 and the formation of (NH2)(2)CO on CaO surface, the optimal temperature range becomes narrow (850-975 degrees C) in comparison with that in utility boiler, the optimal concentration of O-2 is in the range of 2% to 3.3%, and NO reduction rate reaches above 75% at 900-970 degrees C.

关键词Cement Precalciner Cao No Co2 Advanced Reburning
DOI10.1016/j.fuel.2018.03.039
收录类别SCI ; EI
语种英语
WOS记录号WOS:000432920900022
关键词[WOS]SNCR DENO(X) PROCESS ; CATALYTIC-REDUCTION ; CALCINED LIMESTONE ; NITRIC-OXIDE ; 111 SURFACE ; COMBUSTION ; DECOMPOSITION ; COAL ; NH3 ; CAO
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
项目资助者Key Research and Development Plan of China(2016YFB0601503)
论文分区一类
力学所作者排名1
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77488
专题高温气体动力学国家重点实验室
推荐引用方式
GB/T 7714
Li S,Ge YF,Wei XL. Experiment on NOx reduction by advanced reburning in cement precalciner[J]. FUEL,2018,224:226-231.
APA Li S,Ge YF,&Wei XL.(2018).Experiment on NOx reduction by advanced reburning in cement precalciner.FUEL,224,226-231.
MLA Li S,et al."Experiment on NOx reduction by advanced reburning in cement precalciner".FUEL 224(2018):226-231.
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