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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received July 21, 2008
Accepted September 22, 2008

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Behavior of mercury release during thermal decomposition of coals

Jianli Yang^1† Yong Xiao¹ Shaoqing Guo^{1 2} Zhenyu Liu^{1 3}

¹State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, Taiyuan, Shanxi 030001, P. R. China ²Taiyuan University of Science and Technology, Taiyuan, Shanxi 030024, P. R. China ³State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China

Korean Journal of Chemical Engineering, March 2009, 26(2), 560-563(4), 10.1007/s11814-009-0095-9

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Abstract

The mercury release behavior during thermal decomposition of three Chinese coals with different types was studied under nitrogen, carbon dioxide and air at temperatures of 800, 900, 1,000 and 1,100 ℃. The thermal treatment experiments were carried out in a quartz tube reactor. Results showed that the release ratio of total mercury during thermal decomposition of coals increases with the increasing temperature. The order of the amount of mercury released under the three atmospheres is nitrogencarbon dioxide>air for all three coals. The release behavior of the total mercury under air is independent of the coal type. Under the other two atmospheres the release behavior is distinguished by the coal type.

Keywords

Mercury Release Coal Thermal Decomposition

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