ABSTRACT

Isobaric vapor liquid equilibrium (VLE) data for the tert-butyl alcohol (t-BuOH) + water + triethanolamine (TEA), t-BuOH + water + triethanolamine formic acid ([TEA][Fc]), t-BuOH + water + triethanolamine acetic acid ([TEA][Ac]), and t-BuOH + water + triethanolamine lactic acid ([TEA][Lc]) ternary systems were measured at 101.3 kPa. The results indicated that all the three ILs produced a more obvious effect on the VLE behavior of t-BuOH + water system than TEA, and eliminated the azeotropic point in the whole concentration range. [TEA][Lc] was the best solvent for the separation of the t-BuOH + water system by extractive distillation among the three ILs investigated. The experimental VLE data for the ternary systems were correlated with the NRTL model equation, and good correlations were obtained with an average relative deviation of 2.4 %.

Compounds

#	Formula	Name
1	C4H10O	2-methylpropan-2-ol
2	H2O	water
3	C6H15NO3	triethanolamine
4	C7H17NO5	triethanolamine formate
5	C8H19NO5	triethanolammonium acetate
6	C9H21NO6	triethanolamine lactate

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	18
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	18
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	1 5	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	1 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	1 6	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	3 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	2 5	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	2 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	2 6	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	10
POMD	1 3 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	76
POMD	1 3 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Gas	Gas Liquid	Chromatography	76
POMD	1 2 5	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 5; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	76
POMD	1 2 5	Mole fraction - 1 ; Gas	Mole fraction - 5; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Chromatography	76
POMD	1 2 4	Mole fraction - 1 ; Gas	Mole fraction - 4; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Chromatography	76
POMD	1 2 4	Boiling temperature at pressure P, K ; Gas	Mole fraction - 4; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Ebulliometric method (Recirculating still)	76
POMD	1 2 6	Mole fraction - 1 ; Gas	Mole fraction - 6; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Chromatography	57
POMD	1 2 6	Boiling temperature at pressure P, K ; Gas	Mole fraction - 6; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Ebulliometric method (Recirculating still)	57

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Isobaric Vapor Liquid Equilibrium of tert-Butyl Alcohol + Water + Triethanolamine-Based Ionic Liquid Ternary Systems at 101.3 kPa

Zhang, Z.[Zhigang], Zhang, Q.[Qiang], Zhang, Q.[Qinqin], Zhang, T.[Tao], Li, W.[Wenxiu]

ABSTRACT