FIELD: chemistry.
SUBSTANCE: invention refers to producing industrial ethanol. The method provides milling lignocellulosic raw material at two stages, at the first stage - to a particle size of no more than 20×20×5 mm, at the second stage - to a particle size of no more than 50 mcm, mixing the milled raw material with 5% sulphuric acid to produce a batch, performing flow ultrasound treatment of the latter, saccharifying with enzyme preparations, thermostating at 45-55°C, fermenting and recovering the alcohol from fermentable wort by distillation.
EFFECT: invention enables increasing the alcohol yield and reducing the production-related energy consumption.
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