Modeling the decomposition and byproduct formation of a urea-water-solution droplet

doi:10.1016/j.ces.2021.116587

	Modeling the decomposition and byproduct formation of a urea-water-solution droplet
	Krum, Kristian 3,4,5; Allingham, Johanne 3; Poulsen, Stine 3; Christensen, Henrik 1; Hashemi, Hamid 3; Li, Songgeng 2,5; Glarborg, Peter 3; Wu, Hao 3
刊名	CHEMICAL ENGINEERING SCIENCE
	2021-06-29
卷号	237 页码:9
关键词	Urea Urea-water-solution Decomposition Evaporation Kinetic modeling Droplet modeling
ISSN号	0009-2509
DOI	10.1016/j.ces.2021.116587
英文摘要	A mathematical model for evaporation of water from a urea-water-solution (UWS) droplet and subsequent decomposition of urea, including a semi-detailed kinetic scheme for byproduct formation, was developed. The model provided a good description of experimental water evaporation rates from UWS droplets, but generally underestimated the urea decomposition rates. The depletion of 7-70 mm UWS droplets was investigated at ambient temperatures of 200-400 degrees C corresponding to urea-SCR conditions. The results indicate that the risk of deposition may be reduced by minimizing the droplet size and maximizing the exhaust temperature and reaction time. The present work can provide guidance for designing an efficient evaporation system, to facilitate a stable SCR operation with high NO reduction. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	Orients Fund ; Sino-Danish Center for Education and Research ; Technical University of Denmark ; MAN Energy Solutions ; Institute of Process Engineering, Chinese Academy of Sciences.
WOS关键词	HEAT-CAPACITIES ; EVAPORATION ; THERMOLYSIS ; VAPORIZATION ; SIMULATION ; ACID
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000670298000016
资助机构	Orients Fund ; Sino-Danish Center for Education and Research ; Technical University of Denmark ; MAN Energy Solutions ; Institute of Process Engineering, Chinese Academy of Sciences.
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49334]
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.MAN Energy Solut, Teglholmsgade 41, DK-2450 Copenhagen, Denmark 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Tech Univ Denmark DTU, Dept Chem & Biochem Engn, Soltofts Plads 228A, DK-2800 Lyngby, Denmark 4.Sino Danish Ctr Educ & Res, 380 Huaibeizhuang, Beijing 101408, Peoples R China 5.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Krum, Kristian,Allingham, Johanne,Poulsen, Stine,et al. Modeling the decomposition and byproduct formation of a urea-water-solution droplet[J]. CHEMICAL ENGINEERING SCIENCE,2021,237:9.
APA	Krum, Kristian.,Allingham, Johanne.,Poulsen, Stine.,Christensen, Henrik.,Hashemi, Hamid.,...&Wu, Hao.(2021).Modeling the decomposition and byproduct formation of a urea-water-solution droplet.CHEMICAL ENGINEERING SCIENCE,237,9.
MLA	Krum, Kristian,et al."Modeling the decomposition and byproduct formation of a urea-water-solution droplet".CHEMICAL ENGINEERING SCIENCE 237(2021):9.