| 煤燃烧过程中多环芳烃生成影响因素分析 |
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| 引用本文： | 姜楠,张丽萍,孟彦如,于锐,刘娟.煤燃烧过程中多环芳烃生成影响因素分析[J].中州煤炭,2012(1):12-14. |
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| 作者姓名： | 姜楠 张丽萍 孟彦如 于锐 刘娟 |
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| 作者单位： | 山东科技大学地质科学与工程学院;枣庄市国土资源局薛城分局 |
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| 基金项目： | 国家自然科学基金资助项目(40802086);山东省沉积成矿作用与沉积矿产重点实验室开发基金资助项目(DMSM200804) |
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| 摘 要： | 综合论述了煤燃烧过程中多环芳烃(简称PAHs)生成的影响因素。多环芳烃的生成量随挥发分含量、燃烧温度增高而增大,随碳、灰分、氯含量的减小而减小;采用流化床燃烧方式可以有效地减少煤燃烧时PAHs的排放;煤在氮气中热解产生的PAHs量比在空气中燃烧产生的大很多;多环芳烃的生成量随过剩氧气量的增加先减小后增大;在临界点前,随停留时间延长而减少;随添加剂铜的增加先增大后减小。
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| 关 键 词： | 煤燃烧 多环芳烃 环境保护 |
Analysis on Influencing Factors of Polycyclic Aromatic Hydrocarbons Formation During Coal Combustion |
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| Jiang Nan,Zhang Liping,Meng Yanru,Yu Rui,Liu Juan.Analysis on Influencing Factors of Polycyclic Aromatic Hydrocarbons Formation During Coal Combustion[J].Zhongzhou Coal,2012(1):12-14. |
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| Authors: | Jiang Nan Zhang Liping Meng Yanru Yu Rui Liu Juan |
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| Affiliation: | 1.College of Geological Sciences & Engineering,Shandong University of Science and Technology,Qingdao 266510,China; 2.Xuecheng Suboffice of Zaozhuang Bureau of Land and Resources,Zaozhuang 277000,China) |
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| Abstract: | This paper synthetically discussed the influencing factors of polycyclic aromatic hydrocarbons(PAHs) formation during coal combustion.The generation amount of PAHs presents a trend that:increases with the increase of the volatile content and burning temperature,decreases with the decrease of the carbon content,ash content and chlorine content;less in fluidized bed;more in the pyrolysis atmosphere than in the air,decreases first then increases with the increase of the excess oxygen content;decreases with the extension of residence time before critical point;increases first then decreases with the increase of copper additive. |
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| Keywords: | coal combustion polycyclic aromatic hydrocarbons environment protection |
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