| 煤中As的赋存状态及其在燃烧过程中的转化 |
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| 引用本文： | 鲁静,孙俊民,赵承美.煤中As的赋存状态及其在燃烧过程中的转化[J].煤田地质与勘探,2003,31(5):6-9. |
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| 作者姓名： | 鲁静 孙俊民 赵承美 |
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| 作者单位： | 焦作工学院资源与环境工程系, 河南 焦作 454000 |
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| 基金项目： | 国家自然科学基金资助 (4 0 0 2 0 1 3) |
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| 摘 要： | 对煤中砷的赋存状态进行了综述,总结了砷在燃煤过程中的迁移转化行为。从飞灰演化的角度探讨了飞灰对砷的富集机制,认为飞灰对砷的富集是伴随飞灰的演化过程进行的。飞灰对砷的富集主要有4种形式,即发生化学反应生成含砷稳定化合物,进入粘土矿物晶格内部,飞灰对砷及其化合物的吸附和冷凝
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| 关 键 词： | 砷 赋存状态 迁移转化 富集机制 |
| 文章编号： | 1001-1986(2003)05-0006-04 |
| 收稿时间： | 2003-03-13 |
| 修稿时间： | 2003年3月13日 |
Occurrence of As in coal and its behavior during coal combustion |
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| LU Jing,SUN Jun min,ZHAO Cheng mei.Occurrence of As in coal and its behavior during coal combustion[J].Coal Geology & Exploration,2003,31(5):6-9. |
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| Authors: | LU Jing SUN Jun min ZHAO Cheng mei |
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| Institution: | 1. Department of Resources&Environment Engineering, Jiaozuo Institute of Technology, Jiaozuo 454000, China |
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| Abstract: | The occurrence of As in coal and its behavior during coal combustion is reviewed .The enrichment mechanism of As was discussed in view of the evolution of fly ash.It was concluded that the evolution of fly ash and the enrichment of As on fly ash are two respects of the same process.As reacted with fly ash and produced stable arsenic compounds,coming into crystal lattice of clay minerals,absorbed by fly ash and condensed on the surface of fly ash.It is considered to be the four main forms of the enrichment of As by fly ash. |
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| Keywords: | As occurrence evolution enrichment mechanism |
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