Effect of raw material, moisture and high-temperature tertiary air on a coal gasifier for cement precalciation
文献类型：期刊论文
| 作者 | Zhang LY(张乐宇)1,2; Chen QQ(陈晴晴)1,2; Wei XL(魏小林)1,2 ; Cheng H(程珩)2; Li S(李森)1,2; Wei XL(魏小林); Li S(李森)
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| 刊名 | FUEL PROCESSING TECHNOLOGY
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| 出版日期 | 2024-10-15 |
| 卷号 | 262页码:12 |
| 关键词 | Pulverized coal gasification High-temperature tertiary air NO x reduction Cement precalciner |
| ISSN号 | 0378-3820 |
| DOI | 10.1016/j.fuproc.2024.108113 |
| 通讯作者 | Wei, Xiaolin(xlwei@imech.ac.cn) |
| 英文摘要 | This paper proposes a new method of pulverized coal gasification using high-temperature tertiary air in a cement precalciner, in which an external hanging gasifier is added nearby. A full-scale model is established and simulated for the entrained flow gasifier. During the gasification process, the global reaction mechanism is used to model the release and reactions of volatiles from pulverized coal, and a particle surface reaction model is employed to calculate the fixed carbon content. The mechanism by which reducing gas reacts with NO is also considered. The results of the velocity, temperature, gas composition, NOx emissions, calorific value, volatile conversion ratio and char burnout ratio, are achieved in the simulation. The results show that the volatile conversion ratios were close to 100%, and the carbon conversion ratios ranged from 27.97% to 62.76% among all the tested conditions. The concentrations of NO at the outlet of the gasifier were 109, 98, 75, 91, 87, 76, and 90 mg/m3 separately in 7 conditions. These values are significantly lower than those of complete combustion. However, the addition of raw meal had the best temperature control effect, leading to a significant decrease in thermal NOx production and no side effects on the stability of the production line. |
| 分类号 | 一类 |
| WOS关键词 | NOX REDUCTION ; COMBUSTION |
| 资助项目 | State Key Research & Development Program[2016YFB0601503] ; Jilin Province and the Chinese Academy of Sciences High-tech Industrialization Special Program for Science and Technology Cooperation[2024SYHZ0043] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001289707300001 |
| 资助机构 | State Key Research & Development Program ; Jilin Province and the Chinese Academy of Sciences High-tech Industrialization Special Program for Science and Technology Cooperation |
| 其他责任者 | Wei, Xiaolin |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96283]  |
| 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.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang LY,Chen QQ,Wei XL,et al. Effect of raw material, moisture and high-temperature tertiary air on a coal gasifier for cement precalciation[J]. FUEL PROCESSING TECHNOLOGY,2024,262:12. |
| APA | 张乐宇.,陈晴晴.,魏小林.,程珩.,李森.,...&Li S.(2024).Effect of raw material, moisture and high-temperature tertiary air on a coal gasifier for cement precalciation.FUEL PROCESSING TECHNOLOGY,262,12. |
| MLA | 张乐宇,et al."Effect of raw material, moisture and high-temperature tertiary air on a coal gasifier for cement precalciation".FUEL PROCESSING TECHNOLOGY 262(2024):12. |
入库方式： OAI收割
来源：力学研究所
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