Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behavior measurement for the binary mixture of CO2 + neopentyl glycol diacrylate and CO2 + neopentyl glycol dimethacrylate systems at high pressure

Jang, Y.-S.[Yoon-Seok], Kim, S.-H.[Sung-Hyun], Yoo, K.-P.[Ki-Pung], Byun, H.-S.[Hun-Soo]
Fluid Phase Equilib. 2011, 302, 1-2, 234-240
ABSTRACT
In this work, the solubility curves for the CO2 + neopentyl glycol diacrylate (NPGDA) and CO2 + neopentyl glycol dimethacrylate (NPGDMA) systems are measured in static method at five temperatures of (313.2, 333.2, 353.2, 373.2 and 393.2) K and pressures up to 25.28 MPa. Both CO2 + di(meth)acrylate systems have continuous critical mixture (locus) curves that exhibit maximums in pressure temperature space between the critical temperatures of CO2 and neopentyl glycol di(meth)acrylate. The solubility of CO2 in the CO2 + neopentyl glycol di(meth)acrylate mixture decreases as the temperature increases at a constant pressure. The CO2 + NPGDA and CO2 + NPGDMA systems exhibit type-I phase behavior. The experimental results for the CO2 + NPGDA and CO2 + NPGDMA systems are correlated with Peng-Robinson equation of state using a mixing rule including two adjustable parameters. The critical properties of NPGDA and NPGDMA are predicted with Joback-Lyderson and Lee-Kesler method.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C11H16O4 2,2-dimethylpropane-1,3-diyl diacrylate
3 C13H20O4 2,2-dimethylpropane-1,3-diyl bis(2-methylacrylate)
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
  • 2
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Static Cell
  • 1
  • POMD
  • 1
  • 2
  • Critical temperature, K ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Static Cell
  • 1
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 54
  • POMD
  • 1
  • 3
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Static Cell
  • 2
  • POMD
  • 1
  • 3
  • Critical temperature, K ; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Static Cell
  • 2
  • POMD
  • 1
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 65
  • POMD
  • 1
  • 3
  • Vapor or sublimation pressure, kPa ; Gas
  • Temperature, K; Gas
  • Mole fraction - 3; Gas
  • Gas
  • Liquid
  • Closed cell (Static) method
  • 3