Kvasny Prum. 1980; 26(9): 202-205 | DOI: 10.18832/kp1980032

Distilleries can save much energy.Peer-reviewed article

J. MORAVEC, J. ROSÁK, V. MALEČEK

In the first part of the article the authors examine the question, whether the requirements of very rigorous National Standards regulating in Czechoslovakia the quality of alcohol produced by fermentation are justified by the character of its final application. The second part deals with the energy consumption in rectification processes. Since it depends on alcohol concentration in the rectified product, it is possible to save much energy by reducing the concentration limit indicated in Standard from 96,3% (volumetric) to 95,7 %. The authors maintain that more than 80 % of alcohol consumed in Czechoslovakia for various purposes does not require concentration as high as 96,3 % prescribed by existing Standard, limiting too much the amount of tolerated water. Excessive requirements contribute to high energy consumption. By reducing the limit from 96,3 % to 95,7 % as much as 25-35 % of energy can be saved in the rectification processes. Theoretical calculations have been confirmed by experiments carried out on production scale in a distillery at Kolín.
(In Czech, English summary only)

Keywords: save, energy, alcohol, fermentation

Published: September 1, 1980