| 反应气氛对不同煤灰烧结温度影响的研究 |
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| 引用本文： | 王勤辉,揭涛,李小敏,骆仲泱,景妮洁,岑可法.反应气氛对不同煤灰烧结温度影响的研究[J].燃料化学学报,2010,38(1):17-22. |
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| 作者姓名： | 王勤辉 揭涛 李小敏 骆仲泱 景妮洁 岑可法 |
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| 作者单位： | State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China |
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| 基金项目： | 国家重点基础研究发展规划 |
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| 摘 要： | 煤灰的烧结温度对流化床燃烧及气化炉的设计和运行有着很重要的作用。利用所建的压差法煤灰烧结温度测量装置,在分析了灰样放置方式对煤灰烧结温度测量影响的基础上,测量了不同反应气氛下不同煤灰的烧结温度,并获得了煤灰成分以及反应气氛对煤灰烧结特性的影响。结果表明,煤灰的酸碱比越大,其烧结温度越高,同时煤灰的含铁量增加将明显降低其烧结温度;还原性气氛下煤灰的烧结温度低于氧化性气氛下煤灰的烧结温度,而在H2气氛下,具有适当的Fe2O3、Na2O、SO3配比的煤灰容易产生低温共熔体Na2S-FeS,使得H2气氛下的烧结温度低于CO气氛下的煤灰烧结温度;典型流化床气化下煤灰的烧结温度介于CO气氛和H2气氛下煤灰烧结温度之间,并且更接近于CO气氛。
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| 关 键 词： | 煤灰 烧结温度 还原性气氛 |
| 收稿时间： | 2009-04-09 |
| 修稿时间： | 2009-08-01 |
Experiments of the effects of reaction atmosphere on the coal ash sintering temperature |
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| WANG Qin-hui,JIE Tao,LI Xiao-min,LUO Zhong-yang,JING Ni-jie,CEN Ke-fa.Experiments of the effects of reaction atmosphere on the coal ash sintering temperature[J].Journal of Fuel Chemistry and Technology,2010,38(1):17-22. |
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| Authors: | WANG Qin-hui JIE Tao LI Xiao-min LUO Zhong-yang JING Ni-jie CEN Ke-fa |
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| Institution: | WANG Qin-hui,JIE Tao,LI Xiao-min,LUO Zhong-yang,JING Ni-jie,CEN Ke-fa(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | The understanding of sintering temperature of coal ash is of significance for the design and operation of fluidized bed combustion and gasification systems.So the ash sintering for different coal ash samples under different reaction atmospheres was studied by means of a coal ash sintering temperature measuring system based on the variation of the pressure-drop,and the effects of reaction atmosphere and ash composition on coal ash sintering behavior were discussed.The results show that the sintering temperat... |
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| Keywords: | sintering temperature reducing atmosphere coal ash |
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