| 矿物成分对超细化煤粉燃烧硫转化影响的实验研究 |
| 摘要点击 2987 全文点击 1421 投稿时间：2005-07-16 修订日期：2005-10-08 |
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| 中文关键词 超细化煤粉 脱灰煤 矿物成分 SO2 |
| 英文关键词 micro-pulverized coal demineralized coal mineral matter SO2 |
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| 中文摘要 |
| 选用超细化鹤岗、铁法、准噶尔3种原煤、脱灰煤(HCl/HF脱灰),与分别添加MgO、CaO、Al2O3和Fe3O4矿物的脱灰煤制成试验样品.使用DTG(热重/差热分析仪)对不同样品进行燃烧实验,GC-MS(气相色谱质谱联用仪)分析烟气中SO2,设定气体流量为50mL/min,氧气体积分数为20%,升温速率为20℃/min,考察矿物成分对煤粉燃烧时硫转化的影响.结果发现,超细化3种煤的原煤样品燃烧过 |
| 英文摘要 |
| Three species micro-pulverized coals(Hegang,Tiefa,Zhungeer coal) were studied,the mineral matters(MgO、CaO、Al2O3 and Fe3O4) were respectively added to the coals.The combustion of samples were studied to investigate the effect of mineral matter on transformation of sulfur during combustion by the combined of DTG and GC-MS,the flowmeter 50 mL/min,heating rate 20℃/min,oxygen volume percentage 20%.The SO2 release curve of primitive micro-pulverized coal appear three peaks during the combustion,but the demineralized sample appear two peaks.The species of coal has effect on temperature of the maximum release rate of SO2,the release rate of SO2 of Hegang coal is even in three temperature ranges,Tiefa coal appear maximum value about 500℃ and Zhungeer coal about 200℃ which probably due to the different amount of all kinds of sulfur in primitive coal sample.The mineral matter(MgO、CaO、Al2O3 and Fe3O4) have sulfur retention and catalyzing effect on SO2 the combustion of coal.The amount and species of mineral matter and species of coal determine the sulfur retention effect. |
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