II. Uluslararası Enerji Hammaddeleri ve Enerji Zirve ve Sergisi (İNERMA’17), İstanbul, Turkey, 27 - 30 September 2017, pp.121-129
Coal is the prime fossil fuel in Turkey and its huge reserves (15 billion tones) and distribution in different regions around Turkey make it the most reliable source of energy. However Turkish coals need to be washed from technological, economic and environmental point of view because of having low calorific value and containing high ash and sulfur contents. Therefore, it is very important to reveal the washing ability of Turkish lignite placed in different regions. For this purpose investigation of washability of lignite which has 30% ash content and 4500 upper calorific value from Bursa-Keles region was carried out at the present study. To determine the wash ability characteristics of coal, float and sink tests was applied on the coal prepared in close size fractions (-100+50 mm ; -50+25 mm ; -25+6 mm ; -6+0,5 mm) and then - 0,5 mm size fraction was evaluated to obtain clean coal using the Riechert Spiral. As a result of these experiments, coal washing process flowsheet for this particular coal has been created and proposed and the simulation and modelling studies of this process were done using MS-Excel program based on the washability data.