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Vapor liquid equilibrium behavior of aqueous ethanol solution during vacuum coupled simultaneous saccharification and fermentation
Author(s) -
Roychoudhury P. K.,
Ghose T. K.,
Ghosh P.,
Chotani G. K.
Publication year - 1986
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260280707
Subject(s) - chemistry , ethanol , volatility (finance) , cellulase , fermentation , aqueous solution , straw , ethanol fermentation , hydrolysis , vapor–liquid equilibrium , aqueous two phase system , ethanol fuel , chromatography , thermodynamics , inorganic chemistry , organic chemistry , physics , financial economics , economics
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.