Solubilities of nitrogen in heavy normal paraffins from 323 to 423 K at pressures to 18.0 MPa
- Oklahoma State Univ., Stillwater, OK (United States). School of Chemical Engineering
Industrial processes such a petroleum refining, coal conversion, enhanced oil recovery, and supercritical separations have created a demand for phase equilibrium data for mixtures of light solute gases (e.g., methane, ethane, carbon dioxide, carbon monoxide, hydrogen, and nitrogen) with heavy hydrocarbon solvents. 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{sub 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.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-96PC96209
- OSTI ID:
- 684588
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 44, Issue 4; Other Information: PBD: Jul-Aug 1999
- Country of Publication:
- United States
- Language:
- English
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