Interactions in NOX chemistry during fluidized bed co-combustion of residual biomass and sewage sludge

doi:10.1016/j.fuel.2021.120431

	Interactions in NOX chemistry during fluidized bed co-combustion of residual biomass and sewage sludge
	Ulusoy, Burak 1,3,4; Anicic, Bozidar 1,3,4; Lin, Weigang 1,3; Lu, Bona 1,2; Wang, Wei 1,2; Dam-Johansen, Kim 3; Wu, Hao 3
刊名	FUEL
	2021-06-15
卷号	294 页码:10
关键词	Biomass Co-combustion NOX Sewage sludge Fluidized bed
ISSN号	0016-2361
DOI	10.1016/j.fuel.2021.120431
英文摘要	This work investigates the interactions in NOX chemistry during biomass co-combustion in a continuous lab-scale bubbling fluidized bed reactor. Co-combustion experiments were performed at air staged and unstaged conditions, and the gas composition in the flue gas and within the reactor was measured. The used biomass fuels were straw, sunflower husk, sewage sludge, and sunflower seed. Based on the NO concentration in the flue gas, strawsunflower husk and straw-sunflower seed co-combustion were additive, while co-combustion of straw and sewage sludge revealed a synergy effect. The main cause was the presence of sewage sludge ash, which could catalyse the formation of NO from NH3 and HNCO, and possibly HCN. The catalytic effect of the ash increased with lower ash preparation temperature and better mixing of the ash with straw. During straw-sewage sludge cocombustion, the NH3 initially released from sewage sludge favoured the reduction of NO, while at later stages, when a significant amount of ash accumulated in the bed, the catalytic oxidation of NH3 to NO was dominant. Compared to air unstaged conditions, the NO emission was reduced and the impact of ash on the nitrogen chemistry was less pronounced at air staged conditions.
资助项目	SinoDanish Centre for Education and Research ; Technical University of Denmark
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000640910700008
资助机构	SinoDanish Centre for Education and Research ; Technical University of Denmark
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48524]
专题	中国科学院过程工程研究所
通讯作者	Wu, Hao
作者单位	1.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China 3.Tech Univ Denmark, Dept Chem & Biochem Engn, Soltofts Plads 229, DK-2800 Lyngby, Denmark 4.Sino Danish Ctr Educ & Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ulusoy, Burak,Anicic, Bozidar,Lin, Weigang,et al. Interactions in NOX chemistry during fluidized bed co-combustion of residual biomass and sewage sludge[J]. FUEL,2021,294:10.
APA	Ulusoy, Burak.,Anicic, Bozidar.,Lin, Weigang.,Lu, Bona.,Wang, Wei.,...&Wu, Hao.(2021).Interactions in NOX chemistry during fluidized bed co-combustion of residual biomass and sewage sludge.FUEL,294,10.
MLA	Ulusoy, Burak,et al."Interactions in NOX chemistry during fluidized bed co-combustion of residual biomass and sewage sludge".FUEL 294(2021):10.