Study on the ignition characteristics of CH4/H2/air mixtures in a micro flow reactor with a controlled temperature profile
文献类型：期刊论文
| 作者 | Wang, Junxiong2,3; Li, Xing1,2,3,4,6,7; Li, Jun3,4; Xie, Yunsheng4,5; Fan, Min4,5; Jiang, Liqiao2,3,7 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2024-01-02 |
| 卷号 | 51页码:818-829 |
| 关键词 | CH4/H2 mixtures H2 ratio Ignition temperature Oxidation process |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2023.04.291 |
| 通讯作者 | Li, Xing(lixing@ms.giec.ac.cn) ; Jiang, Liqiao(liqiao@ms.giec.ac.cn) |
| 英文摘要 | The ignition characteristics of stoichiometric CH4/H2/air mixtures with different H2 dilu-tion ratios were studied by using a micro flow reactor (MFR) with a controlled temperature profile. The weak flame positions of the mixtures were determined by the luminosity of CH*, and the ignition temperatures (defined as the corresponding wall temperatures) were obtained. The ignition temperature of the mixture is smoothly decreased with a small amount of H2 addition, while the decrease of the ignition temperature is more rapid with increasing H2 dilution. One-dimensional computation with a detailed reaction mechanism was also conducted to study the ignition characteristics of the CH4/H2/air mixtures. The computational ignition temperature which is defined as the wall temperature at the peak of the heat release rate (HRR) peak is also obtained. Both the experimental and computa-tional results show that the weak flame shifts to the lower temperature region with an increase of the H2 mole fraction. And the non-linear decrease of the ignition temperature of the CH4/H2/air weak flame versus increasing H2 dilution was also well reproduced by the numerical computation. The flame structures, primary exothermic and endothermic re-actions of the CH4/H2/air weak flames were studied in detail. The importance of H and OH in the ignition process of the mixtures was analyzed, and the kinetic effects of H2 on the ignition of the mixture in the intermediate-temperature region (1000-1200 K) and high -temperature region (1200-1300 K) were elucidated. The analysis of the computational re-sults reveals that the OH production routes in the intermediate-temperature region are substantially changed with different H2 dilutions, while the OH production routes at the peak of the heat release rate are not obviously influenced. In the end, the primary mech-anism for the non-linear effects of H2 addition on the ignition temperatures of the CH4/H2 mixtures was clarified.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | HYDROGEN/AIR FLAME PROPAGATION ; LIQUEFIED NATURAL-GAS ; COMBUSTION CHARACTERISTICS ; WEAK FLAMES ; NUMBER DEPENDENCE ; NARROW CHANNEL ; AIR MIXTURES ; DELAY TIMES ; METHANE ; BLENDS |
| 资助项目 | National Natural Science Foundation of China[52176139] ; DNL Cooperation Fund, CAS[DNL202006] ; Guangdong Provincial Natural Science Foundation[2022B1515120047] ; Science and technology innovation project for carbon peak and carbon neutrality of Jiangxi Carbon Neutralization Research Center[2022JXST03] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001139934500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; DNL Cooperation Fund, CAS ; Guangdong Provincial Natural Science Foundation ; Science and technology innovation project for carbon peak and carbon neutrality of Jiangxi Carbon Neutralization Research Center |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40804]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xing; Jiang, Liqiao |
| 作者单位 | 1.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Jiangxi Carbon Neutralizat Res Ctr, Nanchang 330096, Jiangxi, Peoples R China 5.Jiangxi Acad Sci, Inst Energy Res, Nanchang 330096, Jiangxi, Peoples R China 6.Hunan Inst Humanities Sci & Technol, Dept Energy & Mech Engn, Loudi 41700, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Junxiong,Li, Xing,Li, Jun,et al. Study on the ignition characteristics of CH4/H2/air mixtures in a micro flow reactor with a controlled temperature profile[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2024,51:818-829. |
| APA | Wang, Junxiong,Li, Xing,Li, Jun,Xie, Yunsheng,Fan, Min,&Jiang, Liqiao.(2024).Study on the ignition characteristics of CH4/H2/air mixtures in a micro flow reactor with a controlled temperature profile.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,51,818-829. |
| MLA | Wang, Junxiong,et al."Study on the ignition characteristics of CH4/H2/air mixtures in a micro flow reactor with a controlled temperature profile".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 51(2024):818-829. |
入库方式： OAI收割
来源：广州能源研究所
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