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The raw Tarmi coal having ash content of 33.1 % was de-shelled to produce pre-clean of 23.2 % db ash content and then further beneficiated to produce clean coal samples of ash contents of about 13, 16 and 19 % respectively. These concentrates contained inertinites more than 70 %. Pilot oven carbonization tests were carried out by replacement of 10 % indigenous MCC and 13 % indigenous PCC under top...
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