Research Overview of Transformation of Trace Elements During Coal Utilization Processes

Guo Ruixia, Li Baohua ^a, Yang Jianli ^b, Liu Zhenyu ^b
(Shenzhen Environmental Protection Bureau, Shenzhen 518001;
^a Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055;
^b State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001)

Abstract Transformation of trace elements during coal utilization processes is reviewed from several important aspects. Release of trace elements in different heat treatments of coal, forms of trace elements in volatile phase and solid phase are introduced. Effect factors of trace elements transformation are illustrated. Finally, the control technology of some trace elements release is briefly introduced. Potentially promising research topics on trace elements release are discussed.
Key words Coal, Trace elements, Heat treatment, Transformation

郭瑞霞 李宝华^a 杨建丽^b 刘振宇^b
(深圳市环保局 深圳 518001 ^a 清华大学深圳研究生院 深圳 518055
^b 中国科学院山西煤炭化学研究所煤转化国家重点实验室 太原 030001)

摘 要 对煤热转化过程中微量有害元素释放的国内外研究现状进行了综述，总结了煤中微量元素在不同热加工过程中的迁移转化规律、释放形态及其在热加工产物中的存在形态，阐明了微量元素释放的影响因素，简单介绍了微量元素的释放控制方法和技术，并探讨了微量元素今后研究的若干方向。
关键词 煤 微量元素 热加工过程 转化行为

郭瑞霞 女，28岁，博士，从事大气污染研究。联系人，E-mail: rxguo207@yahoo.com.cn
2004-02-25收稿，2004-06-18接受

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