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Numerical simulation of CO emission in a sintering pot under flue gas recirculation

文献类型：期刊论文

作者Zhu, TingYu1,2,4; Wang, Xue1,4; Li, ChaoQun1; Xu, WenQing1,2; Qin, Shuai3; Song, JianFei3
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2023-01-15
卷号452页码:9
ISSN号1385-8947
关键词Sintering flue gas recirculation CO emission Transient two-dimensional model Ignition Solid fuel consumption
DOI10.1016/j.cej.2022.139069
英文摘要A transient two-dimensional sintering model coupling porous medium flow, interphase heat mass transfer and reactions was established through computational fluid dynamics (CFD) method by Comsol Multiphysics 6.0 for a sintering pot under sintering flue gas recirculation (SFGR). The ignition was considered and CO was the carbon combustion intermediate and experienced catalytic oxidation in the ferric oxide bed. The model was verified by sintering pot experimental data of flue gas temperature and components fractions with maximum deviation less than 10 %. The bed temperature, CO emission and solid fuel consumption were focused under different SFGR parameters by the verified model. Ignition was important for the beginning flue gas component fractions, especially when the bed height was less than 700 mm. The effect of SFGR parameters on the maximum bed temperature (MBT) was sequenced: inlet gas velocity > inlet CO fraction > inlet O2 fraction > inlet gas temperature. MBT grew up when each of the four parameters increased. The impact on the CO emission was different: inlet CO fraction > inlet O2 fraction > inlet gas velocity > inlet gas temperature. CO emission declined when each of the parameters increased. The total reaction rate of CO was studied for explanation. The reduction of solid fuel consumption was studied by energy conservation to evaluate the influence of inlet CO, inlet gas temperature and flue gas recirculation fraction. The three factors had positive linear correlation with solid fuel consumption reduction. The reduction maximally reached 16.6 % at flue gas recirculation fraction of 50 %, inlet 2 % CO and 473.15 K temperature, providing theoretical support for SFGR application.
WOS关键词KINETIC-PARAMETERS ; COMBUSTION ; BED ; OXIDATION ; MODEL ; DESULFURIZATION ; OPTIMIZATION ; REDUCTION ; FUEL
资助项目National Natural Science Foundation of China ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences ; Cooperation project on transformation of major scientific and technological achievements of CAS ; [51938014] ; [XDA29020502] ; [22294001Z]
WOS研究方向Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000868156400006
资助机构National Natural Science Foundation of China ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences ; Cooperation project on transformation of major scientific and technological achievements of CAS
源URL[http://ir.ipe.ac.cn/handle/122111/55081]  
专题中国科学院过程工程研究所
通讯作者Zhu, TingYu; Wang, Xue
作者单位1.Chinese Acad Sci, Inst Proc Engn, Res Ctr Proc Pollut Control, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
3.China Univ Petr, Beijing 102249, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Res Ctr Proc Pollut Control, Key Lab Green Proc & Engn, 1 Zhongguancun North Second St, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, TingYu,Wang, Xue,Li, ChaoQun,et al. Numerical simulation of CO emission in a sintering pot under flue gas recirculation[J]. CHEMICAL ENGINEERING JOURNAL,2023,452:9.
APA Zhu, TingYu,Wang, Xue,Li, ChaoQun,Xu, WenQing,Qin, Shuai,&Song, JianFei.(2023).Numerical simulation of CO emission in a sintering pot under flue gas recirculation.CHEMICAL ENGINEERING JOURNAL,452,9.
MLA Zhu, TingYu,et al."Numerical simulation of CO emission in a sintering pot under flue gas recirculation".CHEMICAL ENGINEERING JOURNAL 452(2023):9.

入库方式： OAI收割

来源：过程工程研究所

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