Spontaneous Combustibility Characterisation of the Chirimiri Coals, Koriya District, Chhatisgarh, India

Durga Shankar Pattanaik, Purnananda Behera, Bijay Singh
DOI: 10.4236/ijg.2011.23036                

Abstract

Representative coal samples were collected from different coal seams of the Chirimiri coalfield which covered the entire stratigraphic sequence. These samples were tested for Chemical analysis, Crossing Point Temperature (CPT), Petrography, Infrared studies (IR) and Differential Thermal Analysis (DTA). All the test results vindicated that the aforesaid parameters had a definite relationship with the stratigraphic disposition or the ranks of coal. The low rank coals found as younger seams in the stratigraphic sequence were more prone to spontaneous combustion whereas the higher rank coals found at the bottom of stratigraphic sequence were less prone to spontaneous combustion. Through combustibility characterisation by different tests, it was found that the upper Duman and Kaperti seams placed as younger seams in the stratigraphic sequence are highly prone to spontaneous combustion whereas the lower Karakoh and Sonawani seams seem to be least prone to spontaneous combustion.

Keywords

Chirimiri Coalfield, Crossing Point Temperature (CPT), Infrared (IR) Studies, Differential Thermal Analysis (DTA), Spontaneous Combustion

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	A. K. Singh, R. V. K. Singh, M. P. Singh and N. K. Sukla, “Mine Fire Indices and Their Application to Indian under Ground Mine Fires,” International Journal of Coal Geology, Vol. 69, No. 3, 2007, pp. 192-204. doi:10.1016/j.coal.2006.04.004
[2]	H. K. Mishra, “Petrographic Image Analysis—A Case Study of Indian Permian Coals,” ICCP News, Vol. 28, 2003.
[3]	D. C. Panigrahi and H. B. Sahu, “Classification of Coal Seams with Respect to Their Spontaneous Heating Susceptibility—A Neutral Network Approach,” Geotechnical Engineering, Vol. 22, No. 4, 2004, pp. 457-476. doi:10.1023/B:GEGE.0000047040.70764.90
[4]	A. Jain, “Assesment of Spontaneous Heating Susceptibility of Coals by Using DTA,” BTech Dissertation, NIT, Rourkela, 2009.
[5]	C.S. Raja Rao, “Chirimiri Coalfield,” Bulletin Geological Survey of India, Vol. 45, No. 3, 1983, pp. 44-55.
[6]	Y. V. S. Prasad, “A Survey of Spontaneous Combustibility of Coals of the Raniganj Coalfield,” Ph.D. Thesis, Indian School of Mines, Dhanbad, 1987.
[7]	C. Niyogi, “Studies of SPONTANEOUS COMBUSTION of COAL of Talcher Coalfield,” Ph.D. Thesis, Indian School of Mines, Dhanbad, 1989.
[8]	P. Behera, “Geology of the Ib-Valley Coal Field with Special Reference to Spontaneous Combustibility of Its Different Seams,” Ph.D. Thesis, Indian School of Mines, Dhanbad, 1991.
[9]	C. A. Seyler, “Petrology and Classification of Coal: Pts I & II,” Proceedings of the South Wales Institute of Engineer, Vol. 53, No. 4, 1938, pp. 254-327.
[10]	D. Chandra and N. C. Chakrabarti, “Coalification Trends in Indian Coals,” International Journal of Coal Geology, Vol. 13, No. 1-4, 1989, pp. 413-435. doi:10.1016/0166-5162(89)90102-X
[11]	D. W. Van Krevelen, “Coal,” Elsevier Publishing Co., New York, 1961.
[12]	D. Chandra, Y. V. S. Prasad, H. B. Acharya, A. K. Samsuddin and K. C. Banerjee, “Spontaneous Combustion of the Coal Seams of the Raniganj Coalfield—A Thermal Study,” Proceedings National Seminar on Coal Resources of India, Varanasi,1987, pp. 206-214.
[13]	D. K. Nandi, S. C. Banerjee and R. M. Chakraborty, “Effect of incombustible Material on Critical Oxidation Temperature of Coal,” Indian Journal of Technology, Vol. 3, No. 5, 1963, pp. 160 - 162.
[14]	David N. Kendall, “Applied Infrared Spectroscopy,” Reinholl Publishing Corporation, Chapman and Hall Ltd., London, 1966.
[15]	S. S. Choudhury, P. K. Sanyal and S. C. Banerjee, “Auto-Oxidation and Self Heating of Coal: Its Structural Implications,” Fuels Technology, Vol. 1, No. 3, 1982, pp. 99-105.
[16]	J. B. Stott and O. J. Baker, “Differential thermal analysis of coal,” Fuel, Vol. 32, 1953, p. 415.
[17]	S. C. Banerjee and R. N. Chakravorty, “Use of D.T.A. in the Study of Spontaneous Combustion of Coal,” Journal of Mines, Metals, Fuels, Vol. 15, No. 1, 1967, pp. 1-5.
[18]	S. C. Banerjee, “Spontaneous Combustion of Coal,” Ph.D. Thesis, Calcutta University, Calcutta, 1969.
[19]	S. C. Banerjee, B. D. Banerjee and R. N. Chakravorty, “Rate of Studies of Aerial Oxidation of Coal at Low Temperature (30?C - 170?C),” Fuel, Vol. 49, No. 3, 1972, pp. 324-332. doi:10.1016/0016-2361(70)90024-4
[20]	P. Behera and D. Chandra, “Spontaneous combustion of the Ib-valley coals of Orissa (India)—A DTA Study,” Minetech, Vol. 16 No. 1-2, 1995, pp. 52-57.