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Some Parametric Factors Influencing Cottage Ethanol Plant

Author(s): S.E. Obetta | V.J. Omale and S.V. Irtwange

Journal: Research Journal of Applied Sciences, Engineering and Technology
ISSN 2040-7459

Volume: 2;
Issue: 8;
Start page: 776;
Date: 2010;
Original page

Keywords: Cassava | cottage ethanol plant | distillation | fermentation | ingress stoker

A cottage ethanol plant was designed, constructed and tested in m ajor effect to m ake reasonable contribution in the current drive for renewable energy. The plant consists of a stoker chamber, fermentation vessel, two-stage distillation column, a condenser and the ethanol receptacle. The conditioned feedstock, freshly harvested cassava, was feed into the fermentation vessel, allowed 48 h fermentation with enzymes and yeast added. The ethanol was distilled and allowed to pass through a condenser and finally the ethanol was collected. The ethanol unit prototype was evaluated using tests on three varieties of cassava. The degree of recovery of the distilled sample ranged from 18.28 % ethanol for 3-5 mm Cassava chips to 62.03% ethanol by volume for sieved cassava liquor on one hand, and ranged from 49.37% of ethanol for a packing size of 3-6 mm to 62.81% of ethanol for a packing size of 8-10 mm. Mean values of some tests parameters were also determined. These parameters as quantitatively analysed using ANOVA, showed high significant difference (p
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