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| Modeling the decomposition and byproduct formation of a urea-water-solution droplet | |
| Krum, Kristian1,2,3; Allingham, Johanne1; Poulsen, Stine1; Christensen, Henrik4; Hashemi, Hamid1; Li, Songgeng3,5; Glarborg, Peter1; Wu, Hao1 | |
| 2021-06-29 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 237Pages:9 |
| Abstract | 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. |
| Keyword | Urea Urea-water-solution Decomposition Evaporation Kinetic modeling Droplet modeling |
| DOI | 10.1016/j.ces.2021.116587 |
| Language | 英语 |
| WOS Keyword | HEAT-CAPACITIES ; EVAPORATION ; THERMOLYSIS ; VAPORIZATION ; SIMULATION ; ACID |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | 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 ID | WOS:000670298000016 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/49335 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wu, Hao |
| Affiliation | 1.Tech Univ Denmark DTU, Dept Chem & Biochem Engn, Soltofts Plads 228A, DK-2800 Lyngby, Denmark 2.Sino Danish Ctr Educ & Res, 380 Huaibeizhuang, Beijing 101408, Peoples R China 3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 4.MAN Energy Solut, Teglholmsgade 41, DK-2450 Copenhagen, Denmark 5.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| Recommended Citation 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. |
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