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OALib Journal期刊
ISSN: 2333-9721
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氯、氟离子对烟气中汞形态和分布的影响
, PP. 16-19
Keywords: 燃煤烟气,汞,氟离子,氯离子,化学热力平衡,排放控制
Abstract:
在100kpa、50～950℃的条件下,采用化学热力平衡分析方法研究了煤燃烧过程中f离子和cl离子对痕量元素汞的形态及其分布的影响。结果表明:在煤燃烧的较高温度区域,单质汞是汞的主要形式;随着烟气温度的降低,单质汞将发生化学反应生成二价汞的化合物,形式主要为hgcl2(g);氯离子含量的增加可以增强汞的蒸发,有利于排放控制,而氟元素对汞在烟气中的行为特性几乎无影响。
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