| 燃煤流化床床料异相降解氮氧化物实验研究 |
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| 引用本文： | 周浩生,陆继东,周琥. 燃煤流化床床料异相降解氮氧化物实验研究[J]. 煤炭转化, 2000, 23(1): 47-50 |
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| 作者姓名： | 周浩生 陆继东 周琥 |
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| 作者单位： | 周浩生（东南大学热能工程研究所，210096 南京）;陆继东（华中理工大学煤燃烧国家重点实验室，430073 武汉）;周 琥（华中理工大学煤燃烧国家重点实验室，430073 武汉） |
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| 基金项目： | 博土后科学基金资助项目． |
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| 摘 要： | 研究了几种典型床料对氮氧化物的直接降解作用，Ｆｅ可以高效地催化还原氮氧化物，而铁的氧化物只有在还原性气氛下才对氮氧化物表现出强烈的催化还原作用。在燃煤流化床中由于Ｆｅ的再生特点使之能够成为降低氮氧化物排放的有效途径。ＣａＯ对氮氧化物也具有较强的催化还原作用，而ＳｉＯ２则表现出对氮氧化物弱的降解作用。
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| 关 键 词： | 流化床 氮氧化物 异相还原 燃煤锅炉 降解 床料 |
| 修稿时间： | 1999-10-11 |
HETEROGENEOUS REDUCTION OF NITRIC OXIDES OVER BED MATERIAL IN FLUIDIZED BED COMBUSTION OF COAL |
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| Zhou HaoshengLu Jidong,Zhou Hu. HETEROGENEOUS REDUCTION OF NITRIC OXIDES OVER BED MATERIAL IN FLUIDIZED BED COMBUSTION OF COAL[J]. Coal Conversion, 2000, 23(1): 47-50 |
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| Authors: | Zhou HaoshengLu Jidong Zhou Hu |
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| Affiliation: | Zhou Haosheng;(Thermoenergy Engineering Research Institute, Southeast University, 210096 Nanjing);Lu Jidong,Zhou Hu;(National Laboratory of Coal Combustion, Huazhong University of Science and Technology,430074 Wuhan) |
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| Abstract: | The decomposition and reduction of N 2O and NO over iron, its oxides, lime and silica was investigated in a TG FTIR system. The initial decomposition temperature of N 2O is reduced and the conversions of it are enhanced in the presence of Fe and CaO. The oxides of iron were found to be relatively un reactive to the destruction of N 2O and NO, while iron is a strong reducing agent for reducing the emissions of N 2O. The discussion of the mechanisms of the bed materials on the emissions of N 2O/NO in FBC show that iron is an excellent catalyst for the reduction of nitric oxides in fluidized bed combustion of coal. |
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| Keywords: | fluidized bed combustion nitric oxides heterogeneous reduction |
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