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| 高灰熔点煤气化特性及灰渣熔融特性的研究 | |
| 引用本文： | 乌晓江,张忠孝,徐雪元,刘建斌,张建文.高灰熔点煤气化特性及灰渣熔融特性的研究[J].动力工程,2011,31(7). |
| 作者姓名： | 乌晓江 张忠孝 徐雪元 刘建斌 张建文 |
| 作者单位： | 1. 上海交通大学机械与动力工程学院,上海200240;上海锅炉厂有限公司,上海200245 2. 上海交通大学机械与动力工程学院,上海,200240 3. 上海锅炉厂有限公司,上海,200245 |
| 基金项目： | 国家自然科学基金资助项目(50906055); 上海市青年科技启明星项目(11QB1402100) |
| 摘 要： | 在0.1-0.2 kg/h小型电加热式常压气流床气化装置上,研究了不同温度、不同O/C物质的量比对高灰熔点煤气化特性和煤灰熔融特性的影响.结果表明：在不同温度下,随着O/C物质的量比增加,CO2体积分数呈线性增加.当O/C物质的量比较低时,H2和CH4体积分数较高;随着O/C物质的量比的增加,合成气中H2和CH4的含量下降较快.在不同温度下,随着O/C物质的量比的增加,碳转化率增加;但当O/C物质的量比达到1.1时,进一步增大O/C物质的量比,则使得炉内煤焦及合成气中可燃气体（CO、H2、CH4等）的燃烧份额增加,从而导致冷煤气效率下降;在该文试验条件下的最佳O/C物质的量比为0.9-1.1.对于淮南高灰熔点煤,该试验条件下适合干排渣工艺的最佳气化温度为1 300-1 350℃. |
| 关 键 词： | 气流床 煤气化 煤灰 O/C物质的量比 干排渣 灰渣熔融特性 冷煤气效率 |
Experimental Study on Gasification and Ash Fusion Characteristics of Coal with High Ash Fusion Temperatures |
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| WU Xiao-jiang,ZHANG Zhong-xiao,XU Xue-yuan,LIU Jian-bin,ZHANG Jian-wen.Experimental Study on Gasification and Ash Fusion Characteristics of Coal with High Ash Fusion Temperatures[J].Power Engineering,2011,31(7). | |
| Authors: | WU Xiao-jiang ZHANG Zhong-xiao XU Xue-yuan LIU Jian-bin ZHANG Jian-wen |
| Affiliation: | WU Xiao-jiang1,2,ZHANG Zhong-xiao1,XU Xue-yuan2,LIU Jian-bin2,ZHANG Jian-wen2(1.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China,2.Shanghai Boiler Works Co.,Ltd.,Shanghai 200245,China) |
| Abstract: | The effect of temperature and O/C molar ratio on coal gasification and ash fusion characteristics was studied in a 0.1~0.2 kg/h lab-scale electrical entrained-bed coal gasification setup.Results show that the yield of CO2 in syngas increases linearly with rising O/C molar ratio at different temperatures.When O/C molar ratio is at relatively low value,the yields of H2 and CH4 are relatively high,but the yields drop rapidly later on with increasing O/C molar ratio.The carbon conversion increases with growing ... |
| Keywords: | entrained-flow bed coal gasification coal ash O/C molar ratio dry ash handling ash fusion characteristic cold gas efficiency |
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