| O_2/CO_2气氛下高岭土和石灰石控制燃煤PM_1排放的试验研究 |
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| 引用本文： | 陈娟,罗光前,张平安,肖黎,徐明厚,姚洪.O_2/CO_2气氛下高岭土和石灰石控制燃煤PM_1排放的试验研究[J].动力工程,2009(12). |
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| 作者姓名： | 陈娟 罗光前 张平安 肖黎 徐明厚 姚洪 |
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| 作者单位： | 华中科技大学煤燃烧国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(50721140649,50776038); 教育部新世纪人才资助项目(NCET-08-0227) |
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| 摘 要： | 在O2/CO2气氛和不同温度下,在沉降炉中对分别添加2种吸附剂的2种典型褐煤进行了燃烧试验,研究了高岭土和石灰石对碱金属、重金属和硫的吸附以及温度对PM1排放特性的影响.结果表明:高岭土与煤中金属发生吸附反应,而石灰石吸附了大量的硫,使金属和硫由小于1μm的颗粒向大于1μm的颗粒转移;添加吸附剂后,2种煤的PM1排放均明显减少,且均在1100℃时减排效果最好.对PM1的减少率进行比较发现,A煤添加高岭土比B煤添加高岭土的效果好,而B煤添加石灰石比A煤添加石灰石的效果好.
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| 关 键 词： | 煤 PM1排放 颗粒物 高岭土 石灰石 吸附 O2/CO2气氛 |
Control on PM_1 Emission from Coal Combustion Under O_2/CO_2 Atmosphere by Limestone and Kaolin |
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| CHEN Juan,LUO Guang-qian,ZHANG Ping-an,XIAO Li,XU Ming-hou,YAO Hong.Control on PM_1 Emission from Coal Combustion Under O_2/CO_2 Atmosphere by Limestone and Kaolin[J].Power Engineering,2009(12). |
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| Authors: | CHEN Juan LUO Guang-qian ZHANG Ping-an XIAO Li XU Ming-hou YAO Hong |
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| Affiliation: | CHEN Juan,LUO Guang-qian,ZHANG Ping-an,XIAO Li,XU Ming-hou,YAO Hong(State Key Lab of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Combustion experiments on two typical lignites respectively added with two absorbents were carried out in a drop-tube furnace under O_2/CO_2 atmosphere,so as to study the absorption property of limestone and kaolin for alkali/heavy metal and sulfur,as well as the influence of temperature on PM_1 emission characteristics.Results show that kaolin reacts with metals during coal combustion while limestone absorbs a large amount of sulfur particles,which result in size growth of metallic and sulfur particles fro... |
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| Keywords: | coal PM_1 emission particulate matter kaolin limestone adsorption O_2/CO_2 atmosphere |
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