Chatterjee, D.R. (1972) The system is release of volatiles from coal and char - I : rapid thermal process. Journal of Mines, Metals & Fuels, 20 (3). pp. 79-86. ISSN 0022-2755

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The quantity of volatiles evolved from a coal at a fast rate of heating has been shown to be a function of the temperature and atomic hydrogen-carbon ratio of the coal, thus- Vt = Pt (H/C – 0.72+0.0054 Pt) Where Vt is the quantity of volatiles, as percentage of unit coal, released by the coal having atomic hydrogen-carbon ratio H/C, at a temperature tºC and Pt is a function of temperature, having the same value for all coals subjected to the chosen temperature tºC. The variation of the value of P t can be found out from a P-t curve, represented by the equation. Pt=80.8 [1 – e-4.205×10-6x (t + 470) (t – 160] The relations explain the continuity of the devolatalisation process of a coal throughout any range of temperature, and show that the amount of volatiles which is evolved from the coal is mostly dependent on its H/C value.

Item Type: Article
Subjects: Coal Preparation
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 17 Jul 2012 05:19
Last Modified: 17 Jul 2012 05:19

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