研究论文
董学文,王宏,刘豪,邱建荣.不同气氛下燃煤SO2的排放规律研究[J].环境科学学报,2003,23(3):322-326
不同气氛下燃煤SO2的排放规律研究
- Study on SO2 emission under various atmospheres during coal combustion
- 基金项目：国家重点基础研究发展规划项目(G199902220407);国家自然科学基金资助项目(59806005)
- 作者
- 单位
- 董学文
- 华中科技大学煤燃烧国家重点实验室,武汉 430074
- 王宏
- 华中科技大学煤燃烧国家重点实验室,武汉 430074
- 刘豪
- 华中科技大学煤燃烧国家重点实验室,武汉 430074
- 邱建荣
- 华中科技大学煤燃烧国家重点实验室,武汉 430074
- 摘要：在立式管状电加热炉上对合山高硫煤在不同的气氛、温度以及Ca/S比的条件下进行了动态燃烧实验,对收集的气体产物进行了红外光谱分析,并讨论了CO2浓度以及温度等因素对SO2释放的影响.结果表明:不同浓度的CO2气氛对煤燃烧过程中硫的释放以及石灰石的固硫效率有着不同的影响.在高于900℃以后,较之空气气氛下,无论是否存在钙基固硫剂,其它三种O2/CO2气氛下SO2的排放量都比较低,且在不同CO2浓度下,温度对SO2的排放影响不一致.
- Abstract：The Heshan high sulfur coal combustion experiments were carried out in a vertical tube electrical heating reactor at various temperature and under various atmospheres, and the exhaust gas was analysed by FTIR analyzer. The effects of CO2 concentration and temperature on the emission of SO2were investigated. The results indicate that the effects of CO2 concentration on the emission of SO2and the desulfurization ratio of limestone sorbent were various under different atmospheres. With or without limeston as SO2sorbent,SO2emission under three O2/CO2 atmospheres, were lower than that under air atmosphere above 900℃, The effect of temperature on SO2emission was different under various CO2 concentration.
- Key words：coal combustion atmosphere SO2emission
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