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Washing of Low Volatile Coking (LVC) Coal: Is That Difficult?

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Abstract

India is currently the third largest importer of coking coal. Coal import has been increasing on year to year basis. Significant share of the prognosticated coking coal reserves of India are low volatile coking (LVC) type which are at present primarily consumed by thermal power plants. Currently produced LVC coals are not very high in ash content but have very difficult washability characteristics. Investigations had been carried out in the past to assess the cleaning potential of LVC coal by crushing to −75 mm followed by pre-cleaning, secondary crushing and cleaning in a multi-product system. The present investigation re-examines the cleaning potential of LVC coal by fine crushing followed by cleaning only and examines issues perceived to be critical for large scale washing of LVC coal.

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References

  1. Ministry of Commerce and Industry, GOI 2014, www.commerce.nic.in.

  2. Geological Survey of India, GOI, 2014 www.portal.gsi.gov.in.

  3. Ministry of Coal, GOI 2014 www.coal.nic.in.

  4. Se K, and Choudhuri S G, in Beneficiation of Difficult to Wash Coals: Development and Prospects, XII International Coal Preparation Congress, (ed) Blaschke W S, Gordon and Breach, Amsterdam (1994), p 957.

  5. Chatterjee, A B, and Baranwal P K, A Case Study: Techno—Economic Feasibility for Installation of 2.5 MtY Coking Coal Washery at Dhori Area CCL, Indian Mineral Congress, (eds) Singh S K, and Sinha A, EDUCOMP, Ranchi (2007), p 259.

  6. Gouricharan T, Sharma K K, Chattopadhyay U S, Sinha K M K, Chattopadhyay P C, Jha G S, Kabiraj S K, Haldar D D, Das T K, and Ghosh N K, in Washability and Pilot Plant Studies to Generate Bulk Cleans at Desired Qualities from LVC Coal of Jharia Coalfields, International Conference on Coking Coals and Coke Making: Challenges and Opportunities, (eds) Vijayavergia R K, Ray J K, and Tirkey, Viva Books, New Delhi (2009), p 219.

  7. Singh A K, J Coal Prep Soc India 2 (2010) 16.

    Google Scholar 

  8. Kumar V, and Saxena V K, Int J Comput Eng Res 4 (2014) 204.

    Google Scholar 

  9. Bhattacharya S, Metallurgical Coal Preparation in India: Problems And Prospects, South African Coal Processing Society III Biennial Coal Preparation Conference, Secunda (2009) www.sacoalprep.co.za/Conference2009/04.

  10. Kyung Eun J E E, The Effect of Coal Properties on Carbonization Behavior and Strength of Coke Blends, MS Thesis, The University of New South Wales (2012).

  11. Caldeira J, Low Volatile, Jellinbah Semi Soft Coking Coal—An Alternative Coal for Coke Blending, Jellinbah Resources, Brisbane (1998).

    Google Scholar 

  12. Mikhail M W, and Osborne D G, Coal Prep 8 (1990) 323.

    Article  Google Scholar 

  13. Osborne D J, Coal Preparation, Vol. 1, Graham and Trotman, New York (1988), p 153, Chapter 5.

  14. Sunil Yadav, Wash and Go, World Coal, April 2011, p 39.

  15. Leonard J W, Coal Preparation, AIME, New York (1979), p 4.

    Google Scholar 

  16. Atul B, Personal Communication (2014).

  17. Avinash K, Arpit S P, and Aman, J S, Unpublished Research, ISM (2014).

  18. South African Coal Processing Society; 2002, Coal Preparation in South Africa, p 234.

  19. Sanders G J, The Principles of Coal Preparation (4th Edition), Australian Coal Preparation Society, Newcastle (Newcastle).

    Google Scholar 

  20. Bhattacharya, S, Processing of Coal Fines—The Challenges We Face in India, IV Asian Particle Technology Symposium, New Delhi (2009).

  21. Bickert G, in Solid–Liquid Separation Technologies for Coal. (ed) Dave O, The Coal Handbook, Cambridge (2013), Vol. 1, p 434

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Acknowledgments

Authors gratefully acknowledge the financial support received from Indian School of Mines Dhanbad to carry out the work.

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Correspondence to Divya Jyoti.

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Jyoti, D., Bhattachrya, S., Anupam, A. et al. Washing of Low Volatile Coking (LVC) Coal: Is That Difficult?. Trans Indian Inst Met 68, 649–660 (2015). https://doi.org/10.1007/s12666-014-0495-3

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