Saha, Sujan and Sahu, G. and Sharma, Bijay Kumar (2012) Variation of CO2 gasification reactivity in gravity separated coal samples. Journal of Mines, Metals & Fuels, 60 (7&8). pp. 156-161. ISSN 0022-2755

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Abstract

Minerals in coals cause operational problems in various coal utilization technology as well as act as diluents towards its heat value. Indian coals contain higher percentage of mineral matter compared to foreign coal due to its formation through drift origin. Efficient utilization of high ash coal in environment friendly manner is the driving force for the development of clean coal technology. Coal gasification offers practical means meeting stringent environment controlled parameters for producing power, chemicals, liquid fuels and clean energy on a single platform. It is well accepted that gasification technology has sufficient potential for sustainable development of clean coal technology. Gasification reactivity depends on the coal properties and operational parameters as well as minerals present in coal. Minerals not only create operational problems but on the other side also catalyze the gasification and combustion reaction. Therefore to understand the effect of minerals on the gasification reactivity, present paper proposes to study the variation of gasification reactivity with various gravity cuts such as, 1.4-1.5;1.6-1.7; and 1.8-1.9 of a selected coal. Gasification reactivity has been studied by thermo gravimetric analyzer (TGA) using CO2 as gasifying agent. Surface properties such as, true density apparent density, porosity surface area of different gravity cut samples have also been measured to find out the effect of gravity separation on gasification reactivity.

Item Type:	Article
Subjects:	Coal Gesification
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	02 Jan 2013 06:27
Last Modified:	02 Jan 2013 06:27
URI:	http://cimfr.csircentral.net/id/eprint/1403

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