煤燃烧固氟剂及固氟效果研究 |
摘要点击 1251 全文点击 1494 投稿时间:2003-05-14 修订日期:2003-07-01 |
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中文关键词 氟 煤燃烧 固氟反应 固氟剂 流化床 链条炉 |
英文关键词 fluorine coal combustion calcium based sorbents combustion fluorine retention fluidized bed chain grate furnace |
作者 | 单位 | 李舒伶1, | 辽宁工程技术大学资源与环境工程学院,阜新,123000 | 齐庆杰1, | 辽宁工程技术大学资源与环境工程学院,阜新,123000 | 刘建忠2, | 浙江大学机械与能源工程学院,杭州,310027 | 曹欣玉2, | 浙江大学机械与能源工程学院,杭州,310027 | 周俊虎2, | 浙江大学机械与能源工程学院,杭州,310027 | 岑可法2 | 浙江大学机械与能源工程学院,杭州,310027 |
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中文摘要 |
通过热力学分析煤燃烧过程中钙基固氟剂固氟反应机理和高温高效钙基固氟剂开发原则;通过流化床和链条炉燃烧试验考察石灰石和钙基固氟剂燃烧固氟效果.试验表明:流化床燃烧时石灰石燃烧固氟效果明显,在Ca/F=60~70时,脱氟率可达到66.7%~70.0%;链条炉燃烧试验表明:利用工业废料开发的钙基固氟剂固氟效果显著,在Ca/F=65~80时,脱氟率为57.32%~75.19%.在燃煤过程添加石灰石和钙基固氟剂具有固氟固硫的双重作用. |
英文摘要 |
In the paper, the reaction of CaO HF and fluorine removal mechanics at high temperature by blending calcium based sorbents with coal during coal combustion were discussed, and test results about fluorine retention during coal combustion in fluidized bed and chain grate furnace were reported. The results identified that lime and calcium based sorbets developed can restrain the emission of fluorine during coal combustion. The efficiency of fluorine removal can reach 66.7%~70.0% at Ca/F 60~70 by blending lime with coal in fluidized bed combustion, and the efficiency of fluorine removal are between 57.32% and 75.19% by blending calcium based sorbets with coal in chain grate furnace combustion. Blending CaO or lime with coal during coal combustion can remove SO2 and HF simultaneously. |
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