| 添加甲醇对二甲醚/空气二阶段燃烧过程的影响 |
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| 引用本文： | 张立志,杨浩林,赵黛青,蒋利桥. 添加甲醇对二甲醚/空气二阶段燃烧过程的影响[J]. 物理化学学报, 2011, 27(7): 1560-1566. DOI: 10.3866/PKU.WHXB20110629 |
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| 作者姓名： | 张立志 杨浩林 赵黛青 蒋利桥 |
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| 作者单位： | 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China;2. Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510640, P. R. China;3. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | 采用一维层流预混火焰模型对二甲醚/甲醇/空气预混气体的流动反应过程进行了数值模拟, 考察甲醛、甲酸等污染物的生成规律. 结果表明: 在低流速下, 添加甲醇能够改变二甲醚反应途径, 抑制二甲醚的低温氧化反应. 当添加和二甲醚等质量的甲醇时, 二甲醚几乎不发生低温氧化反应, 生成的OH自由基减少是导致其发生的主要原因. 随着甲醇添加量的增加, 甲酸排放指数EIHCOOH迅速降低, 而甲醛排放指数EIHCHO在少量增加后持续降低. 添加适量甲醇能够同时降低这两种污染物的排放指数.
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| 关 键 词： | 二甲醚 甲醇 低温氧化 非常规污染物 |
| 收稿时间： | 2011-01-19 |
| 修稿时间： | 2011-05-09 |
Influence of Methanol Addition on the Two Stage Combustion of a Dimethyl Ether/Air Mixture |
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| ZHANG Li-Zhi,YANG Hao-Lin,ZHAO Dai-Qing,JIANG Li-Qiao. Influence of Methanol Addition on the Two Stage Combustion of a Dimethyl Ether/Air Mixture[J]. Acta Physico-Chimica Sinica, 2011, 27(7): 1560-1566. DOI: 10.3866/PKU.WHXB20110629 |
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| Authors: | ZHANG Li-Zhi YANG Hao-Lin ZHAO Dai-Qing JIANG Li-Qiao |
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| Affiliation: | 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China;2. Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510640, P. R. China;3. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| Abstract: | A numerical study was performed to determine the effects of methanol addition on the two stage oxidation of a dimethyl ether/air mixture and on the production of formaldehyde and formic acid in a micro-flow reactor with a fixed temperature profile.The results indicate that methanol addition influences the reaction pathway for dimethyl ether oxidation at low velocity and this results in the low temperature reactions of dimethyl ether being suppressed.The low temperature reactions of dimethyl ether nearly van... |
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| Keywords: | Dimethyl ether Methanol Low-temperature oxidation Non-regulated pollutants |
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