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In the late 1950s, the Soviet Union looked for new methods of using coal sludge for power generation. Coal-water slurry fuel was made in a Ball mill which pulverised the coal or coal …
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A high price of traditional fuel (gas and heating oil) encourages to search for new cheaper fuel to reduce the cost of thermal energy. One of the most promising new products is coal water slurry fuel – a mixture of coal particles (fraction 1 … 70 μm), water and reagent.