活性炭负载催化剂去除燃煤烟气中单质汞的研究

申哲民; 马晶; 向飞

引用本文:	申哲民，马晶，向飞.活性炭负载催化剂去除燃煤烟气中单质汞的研究[J].环境监控与预警,2010,2(2):46-48
	SHEN Zhe-min, MA Jing, XIANG Fei.Removal of Element Mercury in Coal-burning Gas by Activated Carbon Loaded by Catalysts[J].Environmental Monitoring and Forewarning,2010,2(2):46-48

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活性炭负载催化剂去除燃煤烟气中单质汞的研究
申哲民，马晶，向飞
上海交通大学环境科学与工程学院，上海 200240

摘要:

以贵州凯里褐煤进行燃烧实验，研究采用CoCl2（负载量20％）改性的活性炭去除烟气中的单质汞。颗粒态汞占烟气总汞的87％，而单质汞占气态汞的80．4％。改性活性炭吸附了气态汞中97％的单质汞，而吸收液只吸收了3％的单质汞。可见改性活性炭也能有效地吸附煤燃烧实验中的烟气汞。实验结果表明，煤中汞的释放率为59．5％，1kg的改性活性炭可以吸附208t煤所产生的烟气中的气态单质汞。

关键词: 汞活性炭吸收修正

DOI：

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基金项目:国家自然科学基金项目（90510009）

Removal of Element Mercury in Coal-burning Gas by Activated Carbon Loaded by Catalysts

SHEN Zhe-min, MA Jing, XIANG Fei

School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Abstract:

The combustion test was carried out with wood coal from KaiLi GuiZhou. In this study, we chose activated carbon modified by CoGl2 （20% loading） to remove the elemental mercury in flue gas. Particulate mercury accounted for 87% of total mercury, while elemental mercury accounted for 80.4% of gaseous mercury. Modified activated carbon adsorbed 97% of elemental mercury in gaseous mercury; however, the absorption liquid only absorbed 3% of elemental mercury. Consequently, modified acti- vated carbon was able to absorb gaseous mercury in coal combustion test efficiently. The results showed that the release ratio of Hg in coal was 59.5% , and 1 kg of modified activated carbon could absorb the gaseous elemental mercury in flue gas yielded by 208 t of coal.

Key words: mercury activated carbon adsorption modification