改性活性焦脱除烟气中汞的实验研究

被引：51

作者：

熊银伍

杜铭华

步学鹏

梁大明

机构：

[1] 煤炭科学研究总院北京煤化工研究分院

[2] 煤炭科学研究总院北京煤化工研究分院北京市朝阳区

来源：

中国电机工程学报 | 2007年 / 35期

关键词：

活性焦; 改性; 脱汞; 化学吸附; 氧化; 浸渍;

D O I：

10.13334/j.0258-8013.pcsee.2007.35.007

中图分类号：

X701 [废气的处理与利用];

学科分类号：

083002 ;

摘要：

利用KClO3和KCl等5种改性剂对活性焦进行改性处理,并且对改性样品在固定床实验台架上进行了吸附脱汞实验研究,发现含Cl化合物改性样品极大地促进了脱汞能力,并对其化学吸附机理进行了深入的分析,表明C=O官能团在吸附脱汞过程中起到非常重要的作用。随着吸附反应温度的升高,物理吸附降低而化学吸附上升,150℃时脱汞效率最高;水蒸气的存在使浸氯活性焦脱汞效率下降;随着改性剂中氯浓度的升高,脱汞效率升高;样品进行热处理后,随着热处理温度的升高脱汞效率下降。

引用

页码：17 / 22

页数：6

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