Characterization of CO2 Gasification of 17 Coals With Regard to Coal Rank 


Vol. 19,  No. 3, pp. 333-341, Sep.  2013
10.7464/ksct.2013.19.3.333


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  Abstract

This paper presents results on CO2 gasification of 17 raw coals containing a wide range of volatile matter (21-57 wt%). The gasification is performed using a TGA under CO2 and also under N2 atmosphere. An amount of weight loss with increasing temperature is proportional to that of volatile matter in a coal under N2 atmosphere. Reactivity of CO2 gasification also increases with a content of volatile matter. However, the correlation is a little scattered. Oxygenated functional groups in a coal are generally reactive and therefore, an increase in O/C ratio leads to enhanced reactivity. However, CO2 reactivity is affected by neither H/C ratio nor a content of ashes that possibly activate the gasification reaction. These findings are also applicable to steam coal gasification and the reactivity series are confirmed in the test at a fixed bed reactor.

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  Cite this article

[IEEE Style]

K. S, Y. J, C. D, L. S, R. YW, "Characterization of CO2 Gasification of 17 Coals With Regard to Coal Rank," Clean Technology, vol. 19, no. 3, pp. 333-341, 2013. DOI: 10.7464/ksct.2013.19.3.333.

[ACM Style]

Kim S, Yoo J, Chun D, Lee S, and Rhee YW. 2013. Characterization of CO2 Gasification of 17 Coals With Regard to Coal Rank. Clean Technology, 19, 3, (2013), 333-341. DOI: 10.7464/ksct.2013.19.3.333.

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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