Characteristics of Different Indonesian Coals Blended with a High Ash Indian Coal

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Published Jul 19, 2016
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Volume 12, Issue 3, September 2016

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K. H. Arun Kumar
SRF, Materials Technology Division, Central Power Research Institute, Bengaluru-560080
V. Saravanan
Joint Director, Materials Technology Division, Central Power Research Institute, Bengaluru-560080
M. Shekhar Kumar
Additional Director (Retd.), Materials Technology Division, Central Power Research Institute, Bengaluru-560080

Abstract

Two Indonesian coals from different mines were blended with a high ash representative Indian coal obtained from South Eastern Coalfield Limited (SECL) mines at different proportions like 10/90, 20/80, 30/70 and 50/50. These blends were characterized for the qualitative and quantitative parameters based on additive rule. The additive/non-additive behavior of these blend proportions were studied comparing the experimentally obtained value with the calculated values based on additive rule. The results obtained indicate that the quantitative parameters like proximate and ultimate parameters were found to be additive and the qualitative parameters like ash fusion temperature and Hardgrove Grindability Index (HGI) were found to have deviation from the calculated values. Among the two different blends one blend showed additive characteristics on the HGI values while the other one showed non-additive characteristics. The Ash Fusion Temperature (AFT) was found to be non-additive in both the blends.

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How to Cite
Arun Kumar, K. H., Saravanan, V., & Shekhar Kumar, M. (2016). Characteristics of Different Indonesian Coals Blended with a High Ash Indian Coal. Power Research - A Journal of CPRI, 12(3), 579–590. Retrieved from https://cprijournal.in/index.php/pr/article/view/326

References

  1. A M Carpenter, Coal blending for power stations, International Energy Agency (IEA) Coal Research/64 1993, pp. 5-100,1995.
  2. W Moron, W Rybak, Combustioncharacteristics of blended coals, Third European Combustion Meeting (ECM), Mediterranean agronomic institute of Chania, Crete, Greece 11th -13th April, pp. 5-40, 2007.
  3. V Saravanan, R K Kumar, Ramakrishna, SSeetharamu, Combustion characterization of a pulverized coal 210 MW boiler through Computational Fluid Dynamics approach, The Journal of CPRI, Vol.9, No. 1, pp.6370, 2004.
  4. W P Pan, and Y Gan, A study of thermal analytical values for coal blends burned in an air atmosphere, Thermochimica Acta, Vol.180, pp. 203-217, 1991.
  5. J Qiu, FLi, H Zeng, B Yao, and Y Ma, Determination of Optimum blending ratioduring coal blends combustion, Combustion Science and Technology, Vol.157, No .1, pp.167-184, 2000.
  6. S Sua, J H Pohla, D Holcombeb, and J A Hartc, Techniques to determine Ignition, flame stability and burnout of blended coals in P.F. power station boilers, Progress in Energy and Combustion Science, Vol.27, pp. 75–98, 2001.
  7. S Biswas, N Choudhury, P Sarkar, A Mukherjee, S G Sahu, P Boral, and A Choudhury, Studies on the combustion behaviour of blends of Indian coals by TGA and Drop Tube Furnace, Fuel Processing Technology, Vol.87, pp. 191 – 199, 2006.
  8. J T Gilleland, S R Forsythe, R F Graham and H D Hayes, Non-additive analytical values for coal blends, In: Proceedings of the 7th International Conference on coal testing, Charleston, WV, USA, pp. 21-23, 1989.
  9. G Riley, J Wells, and J Williamson, Interactions between coal-ash and burner quarls. Part 2: Resistance of different refractory materials to slag attack in a combustion test facility, Fuel, Vol. 82, Issues 15–17, pp. 1867–1873, 2003.
  10. V Artos, and A W Scaroni, T.G.A. and droptube reactor studies of the combustion of coal blends, Fuel, Vol. 72, No.7, pp. 927933, 1993.
  11. O Williams, C Eastwicka, S Kingmana, D Giddingsa, S Lormorb, and Edward Lester, Investigation into the applicability of Bond Work Index (BWI) and Hardgrove Grindability Index (HGI) tests for several biomasses compared to Colombian La Loma coal, Fuel, Vol.158, No. 15, pp. 379387, 2015.
  12. J C Hower, Additivity of Hardgrove grindability: A case study, International Journal of Coal Geology, Vol. 7, pp. 68-70, 1988.
  13. J Sligar, Coal pulverizing mill section, an intensive course on the characterization of steaming coals, Newcastle, New South Wales: Newcastle, University of Newcastle, Institute of Coal Research, Vol.22, No.2, pp.20–22, 1985,
  14. A Waters, The additive relationship of the Hardgrove Grindability Index, Journal of Coal Quality, Vol. 5, No. 1, pp. 33-34, 1986.
  15. A P Conroy, Grinding behavior of hard coals, Australian Combustion Technology Center (ACTC) Combustion News, Issue No. 5, pp. 1-4, 1998.
  16. Standard test methods for proximate analysis of the analysis sample of coal and coke by Instrumental procedures, ASTM D 5142 - 02a, West Conshohocken, P 194282959,USA.
  17. Standard test methods for instrumental determination of carbon, hydrogen and nitrogen in laboratory samples of coal and coke, ASTM D 5373 -02, WestConshohocken, P 19428-2959, USA.
  18. Standard test methods for sulfur in the analysis sample of coal and coke using high temperature tube furnace combustion methods, ASTM D 4239 -02a, WestConshohocken, P 19428-2959,USA.
  19. Standard test method for Gross Calorific Value of coal and coke, ASTM D 5865 – 03a, West Conshohocken, P 19428-2959, USA.
  20. Standard test method for fusibility of coal and coke ash, ASTM D 1857 -03, Conshohocken, P 19428-2959, USA.
  21. Indian standard method for determination of Hardgrove Grindability Index of coal, IS 4433 – 1979, Manak Bhavan, Bahadur Shah Zafar Marg, New Delhi-110002,India.
  22. Steam its generation and use, Edition 41, ISBN 0-9634570-1-2, Library of congress catalog number. pp. 21-6 to 21-12.
  23. Standard Classification of Coals by Rank, ASTM D 388-99, West Conshohocken, P 19428-2959, USA.
  24. A P Conroy, L A Juniper and D Phonganant, The Impact of coal pulverizingcharacteristics on power plant performance, International Conference on coal science, Tokyo, Japan, 23-27 Oct 1989, New Energy and Industrial Technology Development Organization (NEDO), vol. 2, pp. 10031006, 1989.
  25. J F Unsworth,D J Barratt, P T Roberts, Coalquality and Combustion performance: An International perspective, Amsterdam, the Netherlands, Elsevier Science Publishers, pp.640 -649, 1991.
  26. http://www.acarp.com.au/Media/ACARPWP5-Hardgrove Grindability Index.pdf

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