Abstract
The present investigation was aimed to characterise the natural coke-coal (NCC) or heat-altered coal products through washability, technological property and petrography. NCC of Permian age from Jharia and Raniganj coal basins, India were subjected to beneficiate and the microscopy was performed on the different specific gravity fractions. The yield of washed coals and contents of macerals showed many variations in both the case studies due to the influence of igneous intrusion. However, we can use both NCC products in the different industrial application such as metallurgy, carbon artefact, power plant, fluidised bed combustion (FBC) and for blending purpose despite of their mutual differences. [Received: August 14, 2019; Accepted: April 23, 2020]
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