Kvasny Prum. 1958; 4(11): 256-259 | DOI: 10.18832/kp1958032

Determination of losses of spirit in refineries.Peer-reviewed article

S. MATĚJKOVÁ

This study presents results of the determination of losses of spirit in two plants using the continual method and reversible separation method of yeasts. The method for the collection of samples was worked out, for example at variously occupied shifts or for following certain values during all three shifts and analytical method for the selection of suitable and operationally simple method for the alcohol content determination. The results show a remarkable difference in deaeration loss, which is 0.001 % versus the published value of 0.2 %. During the deaeration about 80 m³ of gas is produced in 24 hours. Newly, losses of 0.1 % in closed centrifuges were detected and similarly also the content of 70% of aldehydes in non-condensing gases from the deaeration which practically further decrease the given loss. In addition, the analysis indicates the convenience of the distillation of the separated mash where the total loss by deaeration is lower versus the distillation of the non-separated mash. In the double distillation apparatus used, losses in slops of 0.32 to 0.37 % were detected, loss in the low wine water were 0.16 to 0.22 %. In fermentation gases,19 g of alcohol in 1 m³ of fermentation gas were detected, which represents the loss of 0.9 % of the average production. The use of the recuperation device Acticarbon reduced the loss in the given case to 0.5 % (efficiency of Acticarbon is 45 %). 

(In Czech, English summary only)

Keywords: distillery, spirit, loss

Published: November 1, 1958