Vapor liquid equilibrium behavior of aqueous ethanol solution during vacuum coupled simultaneous saccharification and fermentation |
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| Authors: | Roychoudhury P K Ghose T K Ghosh P Chotani G K |
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| Affiliation: | Biochemical Engineering Research Centre, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India. |
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| Abstract: | The data on ethanol-water vapor-liquid equilibrium in the presence of cellulase enzyme, nutrients, yeast, and rice straw indicated a substantial increase in ethanol concentration in vapor phase at reduced pressures. Maximum relative volatility of ethanol in the presence of added components is approximately twice that of a pure ethanol-water system. The equation correlating the activity coefficient and ethanol concentration in the liquid phase adequately represents the equilibrium behavior. |
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