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| 程序升温气化过程中氮的释放规律研究 | |
| 引用本文： | 刘银河,张晓燕,刘艳华,车得福.程序升温气化过程中氮的释放规律研究[J].工程热物理学报,2009,30(12). |
| 作者姓名： | 刘银河 张晓燕 刘艳华 车得福 |
| 作者单位： | 1. 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049 2. 霍尼韦尔综合科技(中国)有限公司,上海,浦东,201203 3. 西安交通大学人居环境与建筑工程学院,陕西,西安,710049 |
| 摘 要： | 采用 U 型管反应系统研究了不同煤种在程序升温条件下在四种气氛中反应时燃料氮的释放规律.研究发现热解时主要的含氮产物为 HCN,如果煤中含有较多的氧,即使在惰性气氛下也会释放出 NO.没有检测到 NH3 的生成,证实NH3 来源于 HCN 在焦表面的二次反应.N2O 仅在有氧气氛中气化时生成,说明氧气是 N2O 生成的必要条件.气化时的总固定氮 TFN 高于热解时,且气化剂中 O2 含量越高则总固定氮 TFN 越高. |
| 关 键 词： | 煤 热解 气化 燃料氮 |
NITROGEN RELEASE DURING TEMPERATURE PROGRAMMED COAL GASIFICATION |
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| LIU Yin-He,ZHANG Xiao-Yan,LIU Yan-Hua,CHE De-Fu.NITROGEN RELEASE DURING TEMPERATURE PROGRAMMED COAL GASIFICATION[J].Journal of Engineering Thermophysics,2009,30(12). | |
| Authors: | LIU Yin-He ZHANG Xiao-Yan LIU Yan-Hua CHE De-Fu |
| Institution: | LIU Yin-He~1 ZHANG Xiao-Yan~2 LIU Yan-Hua~3 CHE De-Fu~1 (1.State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China,2.Honeywell Integrated Technology(China) Co.Ltd.,Shanghai 201203,3.School of Human settlements and Civil Engineering,China) |
| Abstract: | Investigations of fuel nitrogen release during pyrolysis/gasification of four coal samples in different gas atmospheres,including N_2,CO_2,3%O_2/CO_2 and 6%O_2/CO_2,are performed in a U tube fixed-bed quartz reactor via temperature-programmed heating.The results show that the dominant N-containing species(excluding N_2) are HCN during temperature-programmed pyrolysis and NO is also detected besides HCN for coals with high oxygen content.No NH_3 is detected in all experiments, and N_2O is formed in an atmosp... |
| Keywords: | coal pyrolysis gasification fuel nitrogen |
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