Singh, P. and Choudhury, Nandita and Sarkar, A. and Sarkar, P. and Das, T.B. (2005) Reactivity assessment of non-coking coal by oxidative thermogravimetric studies. Indian Journal of Chemical Technology, 12 (1). pp. 30-34. ISSN 0971-457X

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Abstract

Inertinite rich low rank coal has been found to be more reactive than vitrinite rich high rank coal. In the present investigation, reactivity assessment studies were conducted on two high ash, non-coking bituminous coals of Indian origine. The reactivity of the derived chars were also measured in kinetic regime-I by both non-isothermal and isothermal gravimetric analysis. The reactivities of the parent coals and the prepared chars were assessed from burning profiles, crossing point/ignition point temperature measurement and calculated activation energies. A discussion is presented to find the relationship between reactivity parameters and coal rank, maceral composition, char morphology and atomic H/C ratio of chars. The low temperature reactivity was found to have good relationship with coal rank and atomic H/C ratio of the chars.

Item Type:	Article
Uncontrolled Keywords:	Reactivity, phrolysis char, thermogravimetry, petrography
Subjects:	Resource Quality Assessment and Coal Petrology
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	09 Jan 2012 06:05
Last Modified:	09 Jan 2012 06:05
URI:	http://cimfr.csircentral.net/id/eprint/618

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