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Table 4 LLE binary interaction parameters of the NRTL and UNIQUAC models for 2,3-butanediol (2,3-BDO), water, and oleyl alcohol (OA)

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

System

NRTL

UNIQUAC

a ij

a ji

b ij (K)

b ji (K)

c ij

a ij

a ji

b ij (K)

b ji (K)

2,3-BDO/Water

− 0.5863

0.567324

− 107.067

899.029

0.2

7.06203

− 34.0042

− 2388.66

10,000

2,3-BDO/OA

− 31.1741

20.1625

9998.51

− 6329.68

0.2

− 1.16437

− 17.0389

2.92684

4985.16

Water-OA

− 11.9258

− 28.0351

5808.59

9999.42

0.2

0.967516

− 22.3601

− 225.248

− 7369.56

AAD

0.0186

0.0211