Thermodynamics Research Center, ThermoML : Journal of Chemical and Engineering Data

Isobaric Vapor-Liquid Equilibrium Measurements and Separation Process for the Quinary Methanol + Methylal + 2-Butanol + 2-(Methoxymethoxy)-butane + (+-)-Di-sec-butoxymethane System

Man, X.[Xingzhe], Jiao, T.[Tiantian], Wang, Z.[Zhiliang], Zhang, X.[Xihong], Zhang, X.[Xiaolong]
J. Chem. Eng. Data 2019, 64, 12, 5038-5048
ABSTRACT
Binary isobaric vapor-liquid equilibrium (VLE) data for methanol (MeOH) + 2-(methoxymethoxy)-butane (SMMB), 2-butanol (SBOH) + di-sec-butoxymethane (DSBM) and SMMB + DSBM at 101.3 kPa were measured. The saturated vapor pressures for SMMB and DSBM in the corresponding temperature range were determined, and then regressed to obtain the Antoine parameters by Aspen Plus. The thermodynamic consistency of all the VLE data were confirmed by Herington area method and Van Ness differential test. T-x-y diagrams of the three systems were plotted. Related binary interaction parameters were obtained through the correlation using Wilson, NRTL and UNIQUAC models. Circular reaction approach was proposed and designed to solve the separation of azeotropic composition (SBOH + SMMB). Then the separation process for the quinary system of MeOH + methylal (DMM) + SBOH + SMMB + DSBM was proposed and simulated in Aspen Plus. The purity of the main product DSBM was 99.32 wt %.
Compounds
# Formula Name
1 CH4O methanol
2 C4H10O butan-2-ol
3 C6H14O2 2-(methoxymethoxy)butane
4 C9H20O2 rel-di((R)-sec-butoxy)methane
5 C9H20O2 (R)-sec-butoxy((S)-sec-butoxy)methane
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
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 5
  • POMD
  • 3
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 6
  • POMD
  • 4
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 4; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 13
  • POMD
  • 1
  • 3
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 23
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 23
  • POMD
  • 2
  • 4
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Solvent: Mole fraction - 4; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 24
  • POMD
  • 2
  • 4
  • 5
  • Mole fraction - 2 ; Gas
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Solvent: Mole fraction - 4; Gas
  • Gas
  • Liquid
  • Chromatography
  • 24
  • POMD
  • 3
  • 4
  • 5
  • Boiling temperature at pressure P, K ; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Solvent: Mole fraction - 4; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 24
  • POMD
  • 3
  • 4
  • 5
  • Mole fraction - 3 ; Gas
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Solvent: Mole fraction - 4; Gas
  • Gas
  • Liquid
  • Chromatography
  • 24