Effects of water vapor and temperature on NOx and CO emissions during converter gas combustion | |
Zhai YH(翟英华); Li S(李森); Yan, WP; Wei XL(魏小林); Zhang, LY; Wang, YT | |
发表期刊 | FUEL |
2019-11-15 | |
卷号 | 256页码:6 |
ISSN | 0016-2361 |
摘要 | Converter gas is a valuable fuel in the converter steelmaking process, and NOx and CO emissions are high due to the high temperature combustion and the absence of H2O vapor. The effects of H2O vapor concentration and the inlet temperature of converter gas on NOx and CO emissions in the combustion are investigated by a detailed chemical reaction mechanism. CO emission decreases sharply when C-H2O,C-inlet increases from 0 to 0.4%. At C-H2O,C-inlet > 0.4% and T-inlet < 950 K, for the reduction of CO emission, the inlet temperature of converter gas is predominant over that of H2O vapor in air. The inlet temperature of converter gas has noticeable influence on NO emission at C-H2O,C-inlet < 2%. With the increase of C-H2O,C-inlet, NO emission first increases, then reaches a peak value, finally decreases. At T-inlet > 1050 K and C-H2O,C-inlet > 2%, NO emission noticeably decreases with C-H2O,C-inlet. In the presence of H2O, H and OH free radicals are easily formed, the reduction path of NO is as follows: NO -> NH/HNO -> N-2. |
关键词 | Water vapor concentration Converter gas Inlet temperature CO emission NO emission |
DOI | 10.1016/j.fuel.2019.115914 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000482184800039 |
关键词[WOS] | NUMERICAL-SIMULATION ; METHANE |
WOS研究方向 | Energy & Fuels ; Engineering |
WOS类目 | Energy & Fuels ; Engineering, Chemical |
资助项目 | Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21040500] |
项目资助者 | Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences |
论文分区 | 一类 |
力学所作者排名 | 1 |
RpAuthor | Li, Sen |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/79964 |
专题 | 高温气体动力学国家重点实验室 |
推荐引用方式 GB/T 7714 | Zhai YH,Li S,Yan, WP,et al. Effects of water vapor and temperature on NOx and CO emissions during converter gas combustion[J]. FUEL,2019,256:6. |
APA | Zhai YH,Li S,Yan, WP,Wei XL,Zhang, LY,&Wang, YT.(2019).Effects of water vapor and temperature on NOx and CO emissions during converter gas combustion.FUEL,256,6. |
MLA | Zhai YH,et al."Effects of water vapor and temperature on NOx and CO emissions during converter gas combustion".FUEL 256(2019):6. |
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