METHOD OF PRODUCING RECTIFIED ALCOHOL AND INSTALLATION FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC B01D3/00 C12P7/06 

FIELD: food industry.

SUBSTANCE: method involves the mixing of raw materials with water, the introduction of enzyme preparations or malt, heating the kneading, fermentation and distillation of the mash. For the production of rectified alcohol, a screening unit is used, including steam-heated borage, epuration and distillation columns, and heat exchange equipment, which consists of a brewing heater, reflux condensers, condensers, shut-off valves and capacitive equipment. Beer is fed to the beer column through the heater, where it is freed from alcohol vapors, which are condensed in the brewer preheater and condenser, together with the impurities accompanying the alcohol, and then sent to feed the epuration column in the form of the beer distillate. In the epuration column, the alcohol is freed from highly volatile impurities, which are discharged as a fraction of the head ethanol from the condenser of the epuration column. Alcohol, purified from volatile impurities, in the form of an epurate is fed to the distillation column, where the alcohol is concentrated, it is freed from highly volatile impurities and from the remaining highly volatile impurities. Volatile impurities are concentrated at the top of the distillation column and returned through the condenser and the stop valve in the amount of 1.0–1.5 % of the conditional alcohol to the epuration column for re-concentration. Volatile impurities are concentrated in the lower part of the column and withdrawn as a fusel fraction in an amount of 0.4–0.6 % of conditional alcohol in the collection. Selection of rectified alcohol is carried out from 5 to 9 plate of the distillation column, counting from above, and sent to the collection of rectified alcohol.

EFFECT: invention allows for the possibility of modeling the quality of the finished product.

2 cl, 1 dwg, 1 tbl