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Table 3 VLE binary interaction parameters of the NRTL and UNIQUAC models for 2,3-butanediol (i) and water (j)

From: Purification of 2,3-butanediol from fermentation broth: process development and techno-economic analysis

Parameter Thermodynamic model
NRTL UNIQUAC
a ij 2.43182 0.623312
a ji − 2.00197 0.0692492
b ij (K) 35.5157 − 123.719
b ji (K) 409.421 − 183.929
c ij 0.3
AAD 0.0047 0.0049