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

Publication history: Received August 26, 2006
Accepted October 9, 2006

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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Effects of methane concentration on hydrocarbon release during the pyrolysis of coal

Suoya Jianmin Zhang^† Hui Lian Meishan Gao

College of Power Engineering, University of Shanghai for Science and Technology, No. 516, Jungong Road, Yangpu District, Shanghai, China

zhangjmlei@sohu.com

Korean Journal of Chemical Engineering, March 2007, 24(2), 328-331(4), 10.1007/s11814-007-5044-x

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Abstract

The weight-loss characteristics of Longkou lignite were studied by means of thermogravimetric analysis in methane ambience. Pyrolysis experiments of the sample coal in different concentrations of methane were carried out on a tube reactor to study the characteristics of hydrocarbon released. The results show that methane can promote the pyrolysis of lignite in a certain temperature range and the coal can also improve the pyrolysis of methane further. The influence of methane concentration on hydrocarbon release during the pyrolysis of coal is obvious. The hydrocarbon released from the pyrolysis of lignite is intensive within the temperature range from 400 ℃ to 500 ℃ and the release of hydrocarbon components dramatically increased as the concentration of methane decreased. This indicates that the release of C2, C3 and C4 has a close relationship with methane pyrolysis and proves that a synergistic effect does exist between the coal and methane.

Keywords

Coal Pyrolysis Methane Hydrocarbon Release

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