EFFECT OF CATALYST CONCENTRATION AND THE MODELLING OF BIOETHANOL PRODUCTION FROM MANIHOT ESCULENTA TUBERSJournal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.4, No. 5)
Publication Date: 2015-05-30
Authors : R.C. Ehiri; I.I.Ikelle; I. Ogbuewu; J. John; J.A. Ibiam; S.O. Ngele;
Page : 578-581
Keywords : Bioethanol; Catalyst; Modelling; Manihot Esculenta;
Bioethanol is a clear, colourless liquid that is biodegradable and can be used as fuel additive. In this work the effect of catalyst concentration on bio - ethanol production was studied in order to obtain optimal yield. The ethanol was produced from manihot esculenta (cassava) tubers using yeast - catalyzed fermentation process followed by distillation. The reaction conditions were maintained at a constant fermentatio n time of 5 days while varying the amount of yeast catalyst added. The results obtained show that the pre - treatment yield of bioethanol ranged from 6 - 12.5%. Maximum bioethanol yield of 12.5% occurred at 2.1g of catalyst being used. Furthermore, modelling t he production process gives a second - orde r equation of the form: Y = - 2.392X 2 + 9.975X + 0.95, where Y is the predicted yield of ethanol and X, the mass of yeast catalyst added.
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