Modeling De-NOx by Injection Ammonia in High Temperature Zone of Cement Precalciner
文献类型：期刊论文
| 作者 | Zhang LY(张乐宇); Wei XL(魏小林) ; Zhang ZX; Li S(李森)
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| 刊名 | JOURNAL OF THERMAL SCIENCE
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| 出版日期 | 2020 |
| 关键词 | cement precalciner SELECTIVE NONCATALYTIC REDUCTION coal combustion NUMERICAL-SIMULATION CaCO3 decomposition SNCR high temperature zone COMBUSTION SNCR OPTIMIZATION |
| ISSN号 | 1003-2169 |
| DOI | 10.1007/s11630-020-1324-0 |
| 英文摘要 | The quantity of NOx emission from cement production is second only to thermal power generation and vehicle exhaust. In this paper, a phenomenon found by Taniguchi is used to achieve NOx reduction in the cement precalciner. Based on his results, it is proposed to reduce NOx that ammonia is injected in the high-temperature and lean-oxygen zone (HT-DeNO(x)) during pulverized coal combustion. For a large cement precalciner (3200 t/d), numerical simulation is used to evaluate the technology of HT-DeNO(x) combined with the traditional selective non-catalytic reduction (SNCR) method. The results indicate that NH3 and HCN in HT-DeNO(x) can reduce NO during the reaction process. With very little ammonia injection (normalized stoichiometric ratio NSR=0.1, the normalized stoichiometric ratio), the efficiency of NO reduction by HT-DeNO(x) is 27.72%. Combining SNCR (NSR=1.1) and HT-DeNO(x) (NSR=0.1), the reduction efficiency will be improved to 60.05%, compared with 50.83% efficiency when using only SNCR at NSR=1.2. |
| 分类号 | 二类 |
| WOS研究方向 | Thermodynamics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000583155300001 |
| 资助机构 | key Research and Development Plan of China [2016YFB0601503} |
| 其他责任者 | Wei, XL ; Zhang, ZX |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85434]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.{Zhang Leyu, Zhang Zhongxiao} Univ Shanghai Sci & Technol Sch Environm & Architecture Shanghai 200093 Peoples R China 2.{Wei Xiaolin} Univ Chinese Acad Sci Sch Engn Sci Beijing 100190 Peoples R China 3.{Zhang Leyu, Wei Xiaolin, Li Sen} Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang LY,Wei XL,Zhang ZX,et al. Modeling De-NOx by Injection Ammonia in High Temperature Zone of Cement Precalciner[J]. JOURNAL OF THERMAL SCIENCE,2020. |
| APA | 张乐宇,魏小林,Zhang ZX,&李森.(2020).Modeling De-NOx by Injection Ammonia in High Temperature Zone of Cement Precalciner.JOURNAL OF THERMAL SCIENCE. |
| MLA | 张乐宇,et al."Modeling De-NOx by Injection Ammonia in High Temperature Zone of Cement Precalciner".JOURNAL OF THERMAL SCIENCE (2020). |
入库方式： OAI收割
来源：力学研究所
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