流光电晕裂解焦油模型化合物的动力学模拟  

KINETIC STUDY OF TAR MODEL COMPOUNDS CRACKING BY STREAMER CORONA DISCHARGES

作　　者：徐彬[1,2] 谢建军 阴秀丽[1] 邓官垒[3] 吴创之[1] 闫克平[3] Xu Bin;Xie Jianjun;Yin Xiuli;Deng Guanlei;Wu Chuangzhi;Yan Keping(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangdong Key Laboratory of New and Renewable Energy Research and Development,Guangzhou510640,China;University of Chinese Academy of Sciences,Beijing100049,China;College of Chemical and Biological Engineering,Zhejiang University,Hangzhou310028,China)

机构地区：[1]中国科学院广州能源研究所,中国科学院可再生能源重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [2]中国科学院大学,北京100049 [3]浙江大学化学工程与生物工程学院,杭州310028

出　　处：《太阳能学报》2018年第11期3178-3184,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51576200);广东省科技计划(2014A010106017;2016A040403097)

摘　　要：选用萘、苯酚为焦油模型化合物,构建萘、苯酚裂解的化学动力学模型。考察初始浓度、温度及水分对萘、苯酚裂解特性的影响;并对苯酚进行生成速率分析和敏感性分析,得到其裂解路径。结果表明:计算值与实验值较好吻合;200℃时萘、苯酚裂解率从90%提高至99%,能量密度增加70%;在200~500℃范围内,注入能量密度相同时,萘裂解率在约400℃时达最大值,而苯酚裂解率随温度增高而逐渐上升;在200℃时H2O的加入对于裂解所需能量密度无显著影响;苯酚与O、H自由基的反应是其主要的裂解路径。Based on two typical,tar model compounds-naphthalene and phenol,a chemical kinetic model on the tar cracking was established in this paper.Effects of the initial concentration,the temperature and the moisture on the cracking of tar model compound were investigated.And the main route for phenol cracking was obtained via the sensitivity analysis and rate-of-production analysis.The results indicated that the calculation values are in basically agreement with the experimental data.It is found that the percentage of energy density required for cracking will be enhanced by approximately70%with the cracking ratio from90%to99%at200℃.Moreover,with the increase of temperature from200to500℃,the cracking ratio is observed to have a peak for naphthalene at approximately400℃ while it will increase gradually for phenol under the same energy density.In addition,it is demonstrated that the moisture has no obvious effect on the cracking energy required in the syngas when temperature is at200℃.Subsequently,the reaction with O and H radicals is proved to be the main route for the phenol cracking.

关 键 词：化学动力学 焦油 苯酚 流光放电 

分 类 号：TQ018[化学工程]