Simultaneous Fermentation and Stripping Process Coupled with an Adsorption-Desorption System

Author : Dorado, Nolasco A.
Major Adviser : Chay, Pham Binh
Committee Members :
Year : 1989
Month : October
Type : Thesis
Degree: BS
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A simultaneous fermentation and stripping process, coupled with an adsorption-desorption system using-coconut shell charcoal (CSC) as packing material was designed. The effect of feed concentration, air flow rate of stripping, size of packing materials, and N2 gas flow rate for the adsorption-desorption process on the resulting ethanol condensate concentration was determined.

The results of experiments show that the ethanol condensate concentration of the desorption process increased as air flowrate and N2 carrier gas flow rates decreased, and feed concentration increased, for a given amount of packing. Furthermore, the ethanol condensate concentration increased as the size of the packing decreased.

Simultaneous fermentation and stripping process coupled with an adsorption-desorption system was studied. This process could be carried out by a batch or continuous process and the sugar concentration of fermentation medium that could be used was up to 300 g/l. The results indicated that the end-product inhibition was reduced and a higher ethanol productivity was obtained.

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