ABSTRACT

Xylose is an important molecule that can be used in the production of chemicals such as ethylene glycol and 1,2-propylene glycol. Experimental and theoretical information are fundamental for the development of conversion and separation processes. In order to supply data of solubility, this work sought to study solid-liquid equilibrium of xylose in binary liquid solutions formed by water/ethylene glycol and water/1,2-propylene glycol in the temperature range between 293.15 K and 323.15 K, covering the entire molar composition range of the binary solution. The Jouyban-Acree and NRTL models were applied in the correlation of experimental data and the UNIFAC and ASOG models were applied in the prediction of experimental data. Xylose showed solubility in the pure components following the order water greater than ethylene glycol greater than 1,2-propylene glycol. Intermediate values of solubility are related to intermediate concentrations of the binary liquid mixture. The mathematical models were successfully applied and new parameters of UNIFAC and ASOG are presented.

Compounds

#	Formula	Name
1	H2O	water
2	C2H6O2	1,2-ethanediol
3	C3H8O2	1,2-propanediol
4	C5H10O5	D-xylose
5	C6H10O4	1,6-hexanedioic acid

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	4 1 2	Mass fraction - 4 ; Liquid	Temperature, K; Liquid Solvent: Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Index of refraction calibration data	77
POMD	4 1 3	Mass fraction - 4 ; Liquid	Temperature, K; Liquid Solvent: Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Index of refraction calibration data	77
POMD	4 1	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Index of refraction calibration data	7
POMD	4 2	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Index of refraction calibration data	7
POMD	4 3	Mass fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Index of refraction calibration data	7
POMD	5 1	Mole fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Index of refraction calibration data	7

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

Phase Equilibrium Involving Xylose, Water, and Ethylene Glycol or 1,2-Propylene Glycol at Different Temperatures

Machado, Patricia G., Galvao, Alessandro C., Robazza, Weber S., Arce, Pedro F., Barbosa, Layze V.

ABSTRACT