The experimental study on nitrogen oxides and SO2 emission for oxy-fuel circulation fluidized bed combustion with high oxygen concentration

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	The experimental study on nitrogen oxides and SO2 emission for oxy-fuel circulation fluidized bed combustion with high oxygen concentration
	Li, Shiyuan 1; Li, Wei 1,2; Xu, Mingxin 1,2; Wang, Xin 1,2; Li, Haoyu 1; Lu, Qinggang 1
刊名	FUEL
	2015-04-15
卷号	146 页码:81-87
关键词	Oxy-fuel Circulation fluidized bed High oxygen concentration Gas staging Oxygen Staging Excess oxygen ratio
英文摘要	Oxy-fuel circulating fluidized bed combustion (CFBC) has an advantage of being operated with high oxygen concentration, making it a better choice for CO2 capture. In order to study the emission of nitrogen oxides and SO2 under O-2/RFG (recycle flue gas) firing mode with an overall O-2 concentration of 50%, oxy-fuel combustion experiments with Datong coal were carried out in a 0.1 MWth oxy-fuel CFBC apparatus. The effects of different operating conditions on gaseous pollution emission, including gas staging combustion, oxygen staging combustion, and excess oxygen ratio were investigated. The experimental results show that a lower secondary flow ratio improves the sulfur capture efficiency, although the fuel N conversion increases slightly. Oxygen staging combustion, which means decreasing the oxygen concentration in the primary flow and increasing it in the secondary flow, is a new and safe method for oxy-fuel combustion with high oxygen concentration. A reasonably low excess oxygen ratio for the oxy-fuel CFBC operation is beneficial to simultaneously enable a decrease in the fuel N conversion and an improvement in the sulfur capture efficiency. (C) 2015 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Energy & Fuels ; Engineering, Chemical
研究领域[WOS]	Energy & Fuels ; Engineering
关键词[WOS]	COAL COMBUSTION ; POWER-GENERATION ; FLUE-GAS ; NOX ; CO2 ; TECHNOLOGY ; CONVERSION ; REDUCTION ; MECHANISM ; PRESSURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000349089700012
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/101505]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Shiyuan,Li, Wei,Xu, Mingxin,et al. The experimental study on nitrogen oxides and SO2 emission for oxy-fuel circulation fluidized bed combustion with high oxygen concentration[J]. FUEL,2015,146:81-87.
APA	Li, Shiyuan,Li, Wei,Xu, Mingxin,Wang, Xin,Li, Haoyu,&Lu, Qinggang.(2015).The experimental study on nitrogen oxides and SO2 emission for oxy-fuel circulation fluidized bed combustion with high oxygen concentration.FUEL,146,81-87.
MLA	Li, Shiyuan,et al."The experimental study on nitrogen oxides and SO2 emission for oxy-fuel circulation fluidized bed combustion with high oxygen concentration".FUEL 146(2015):81-87.