Studies on the Cleaning Potentialities of High Ash Indian Non-Coking Coals for Meeting the MOEF's Stipulations
Authors
-
Sr. Principal Scientist & Head of Research Group, Coal Preparation & Carobonization Division, CSIR-Central Institute of Mining & Fuel Research, Dhanbad ,IN
T. Gouri Charan -
Sr. Technical Officer, CSIR-Central Institute of Mining & Fuel Research, Dhanbad ,INSanjay Choudhury
-
Technical Officer, CSIR-Central Institute of Mining & Fuel Research, Dhanbad ,INS. C. Majhi
-
,INP. S. Prasad
-
Director, CSIR-Central Institute of Mining & Fuel Research, Dhanbad ,INPradeep Kumar Singh
Keywords:
No Keywords.Abstract
The non-coking coal constitutes about 85% of the Indian coal reserves and the depositions remained mostly as low rank sub-bituminous and non-coking type. The vast reserves of the non-coking coal are usually high moisture, high ash, high volatile and sub-bituminous types (Ro% ranging between 0.4 and 0.65). The stipulation laid by the Ministry of Environment and Forest (MOEF), Government of India to transport coal of ash not exceeding 34% beyond 500 km is posing problems to different coal suppliers for the dispatch of its coal to the power plants. The only solution to this problem appears to be the setting up of washeries to reduce the ash content. With a 66% share of installed power generation capacity, the coal industry has a major role to play in the nation's development. The coal washing capacity from all the 52 washing plants is 131Mtpa, indicating that around 30% of the coal is being washed before it is used in power stations. The paper highlights the washability studies carried out on high ash coals, the beneficiation methods required for coal washing in India and various technologies being adopted thereof for washing of Indian coals.
Downloads
Metrics
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
References
Provisional Coal Statistics 2016-17, Coal Controller Organization Office, Kolkata, Govt. of India.
Sen, Kalyan and Das, N. S. (2002): “Economic washing of Indian Power coal & availability of indigenous technology,” and, Seminar on ‘Challenges Facing Indian Coal’, Coal Consumers Association of India, 21 Feb, 2002, Kolkata.
Sen, K., Choudhury, A., Chaudhuri, S. G., Dasgupta, R., Biswas, S. and Das, N. S. (1999): “Technological Implication of Coal Quality Improvement for Power Stations by Benefication and Blending,” International Conference & Exhibition on Mining Challenges of the 21st Century, Nov. 25-27, New Delhi.
Sen, K., Halder, D. D., Biswas, S. and Das, N. S. (1999): “Beneficiation of Non-coking Coals: Basic Concepts and Technology Routes,” Coal for Power Generation - Issues Management vis-à-vis Quality, COALQUAL99 (DCL), Calcutta, 29-30 Jan.1999.
Sen, K., Das Gupta, R., Choudhury, A., Das, N. S., Biswas, S. and Chaudhuri, S. G. (1998): “An approach towards optimum beneficiation of Thermal coals,” Coal Prep. India, '98, Int. Con. on Coal Beneficiation, New Delhi, 12-13 Jan. 1998.
Sen, Kalyan (1994): Beneficiation of difficult to wash coals: Developments $ prospects, 12th ICPC, pp. 1485-1493.
Kalyan Sen and Das N. S., (2002) “Economic washing of Indian Power coal & availability of indigenous technology,” and, Seminar on ‘Challenges Facing Indian Coal’, Coal Consumers Association of India, 21 Feb, 2002, Kolkata.
Sen, Kalyan and Chaudhuri, S. G. (2000): Coal Beneficiation for Power generation (2000) – An appraisal, MGMI International Conference on Mining & Marketing of Minerals, 20-22 July 2000, Calcutta.
Sen, Kalyan, Choudhury, A., Dasgupta, R., Biswas, S. and. Das, N. S. (1999): Technological Implication of Coal Quality Improvement for Power Stations by Beneficiation and Blending, International Conference & Exhibition on ‘Mining Challenges of the 21st Century’ (The Institute of Engineers, India), Nov. 25-27,1999, New Delhi.
Sen, Kalyan, Das, N. S., Biswas, S., Mitra, S. K., Seth, A., Gnana Bharathi, D., Chaudhuri, S. G., Kumar, Anjani and Bhattacharya, .M. M. (1999): “Basic Study initiated on improvement on coal quality: Beneficiation for cleaner use of non-coking coal,” International Symposium on Clean Coal Initiatives (CMRI), New Delhi, 22-24 Jan.
Gouricharan, T., Jha, G. S., Chattopadhyay, U., Haldar, D. D. and Sen, K. (2007): “Cleaning potential of Samleshwari noncoking coal by washability investigation.” Coal Preparation 27: 138-148.
Agarwal, Ashish, Singh, Perminder and Suresh, Nikkam (2011): “Use of Jigs in Coal and Mineral Industries - An Overview.” XII International Conference On Mineral Processing Technology MPT - 2011, CP 24 1271.
