FIELD: chemistry.
SUBSTANCE: described is fuel, which is a mixture, one component of which consists of partially dehydrated spent grains from production of bioethanol and the other component consists of ground materials, where the ratio of the weight of sodium and the weight of potassium in ash residues to the weight of other incombustible components is less than 1:5.85 and/or that ratio varies based on achieving a melting point of ash of said mixture higher than 760°C. Also described is a method of producing fuel, a method of producing heat energy from fuel and an apparatus for carrying out said method.
EFFECT: comprehensive processing of spent grains in order to produce energy using an environmentally friendly technology, which does not produce undesirable wastes which require recycling.
41 cl, 11 ex, 6 dwg
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