The solubilities of nitrogen in selected n-paraffin hydrocarbons (decane, eicosane, octacosane, hexatriacontane) were measured using a static equilibrium cell over the temperature range from 323.2 to 423.2 K at pressures to 18.0 MPa. The uncertainty in the measured solubilities is estimated to be less than 0.001 in mole fraction. The data were analyzed using the Soave-Redlich-Kwong (SRK) and Peng-Robinson (PR) equations of state. In general, the two equations represent the experimental data well when a single interaction parameter C ij is used for each binary system. The data display a trend of increasing solubility of nitrogen with increased temperature, pressure, and n-paraffin chain length.
The solubilities of hydrogen, nitrogen, and carbon monoxide in dodecane were measured using a static
equilibrium cell over the temperature range from 344.3 to 410.9 K at pressures to 13.24 MPa. The
uncertainty in these measurements is estimated to be less than 0.001 in mole fraction. The data are
represented with root-mean-square errors of less than 0.003 mole fraction by the Soave−Redlich−Kwong
and Peng−Robinson equations of state when a single empirical interaction parameter, C
ij
, is used for
each binary system.
The solubilities of hydrogen in hexane and of carbon monoxide in cyclohexane were measured using a static equilibrium cell over the temperature range from 344.3 to 410.8 K and pressures to 15 MPa. The uncertainty in these new solubility measurements is estimated to be <0.001 in mole fraction. The data were analyzed using the Soave-Redlich-Kwong (SRK) and Peng-Robinson (PR) equations of state (EOS). In general, the two equations represent the experimental data within 0.002 mole fraction when a single interaction parameter (C ij ) is used for each isotherm.
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