Open AccessThe effect of boiler size of distillation to the concentration of bioethanol and yield from fermentation of sweet sorghum juice
Author(s) -
Rosalia Sira Sarungallo,
A. Mellolo,
Lydia Melawaty,
Maxie Djonny
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/885/1/012014
Subject(s) - biofuel , distillation , sweet sorghum , pulp and paper industry , raw material , fermentation , chemistry , sorghum , chromatography , waste management , food science , agronomy , organic chemistry , engineering , biology
Bioethanol from sorghum juice can be obtained by the fermentation process involving microorganisms. The distillation process is then carried out to increase the bioethanol concentration. The purpose of this study was to determine optimal of the boiler size from a distillation device based on the concentration of bioethanol final and yield. The bioethanol production research method consists of three stages, namely preparation of raw materials covers cleaning and pressing sorghum stem to get sweet sorghum juice, removal of phenolic compounds by the adsorption method using activated charcoal. Furthermore, the fermentation of sorghum juice is carried out in a batch system. The last stage, the main process of this research is the distillation process at column temperature 70 °C, with variations in the size of boiler A (diameter 7.5; height 29 cm), B (diameter 10 cm; height 20,5 cm), C (diameter 13; height 10 cm). The bioethanol concentration parameters were analyzed using Gas chromatography. The yield calculation is based on the comparison of the volume of bioethanol distillate with the volume of sweet sorghum juice. The results of the optimum bioethanol production research on boiler size C, with final bioethanol concentration (distillate) 75%, final volume of pure bioethanol 16.5 ml, and yield 6.6%.