Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behavior of the carbon dioxide p 1-dodecanol system at high pressures

Secuianu, C.[Catinca], Feroiu, V.[Viorel], Geana, D.[Dan]
Fluid Phase Equilib. 2016, 428, 62-75
ABSTRACT
Vapor-liquid (VLE), liquid-liquid (LLE), and vapor-liquid-liquid equilibria (VLLE) data for the carbon dioxide + 1-dodecanol system at 293.15, 303.15, 313.15, 333.15, and 353.15 K up to 9.36 MPa and phase compositions of the two liquid phases and vapor phase as a function of temperature along the liquid-liquid-vapor (LLV) line are reported. Phase behavior measurements were made in a high-pressure visual cell with variable volume, based on the static-analytic method. The new experimental results are discussed and compared with available literature data. New measured and literature data for carbon dioxide+1-dodecanol system were modeled with several cubic equations of state (EoS), namely the General Equation of State (GEOS), Peng-Robinson (PR), and Soave-Redlich-Kwong (SRK), using classical van der Waals (two-parameter conventional mixing rule, 2PCMR) mixing rules. A non-cubic hard-sphere perturbed equation of state, CSBM GEOS, was also considered, in order to test its capability to describe the equilibrium phase behavior in systems with molecular asymmetry.
Compounds
# Formula Name
1 C12H26O dodecan-1-ol
2 CO2 carbon dioxide
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • ISOPVT
  • 47
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • ISOPVT
  • 47
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • expansion into traps
  • 10
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • 10
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 2
  • Temperature, K; Gas
  • Liquid mixture 2
  • Liquid mixture 1
  • Gas
  • OTHER
  • 2
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • 8
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Gas
  • Liquid mixture 1
  • Liquid mixture 2
  • Gas
  • OTHER
  • 2
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • 2
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Gas
  • ISOPVT
  • 18