Prediction of VL and VLL equilibria of mixtures containing petroleum reservoir fluids and methanol with a cubic EoS

Dimitrios Avlonitis, A. Danesh, A. C. Todd

    Research output: Contribution to journalArticlepeer-review

    135 Citations (Scopus)

    Abstract

    Avlonitis, D., Danesh, A. and Todd, A.C., 1994. Prediction of VL and VLL equilibria of mixtures containing petroleum reservoir fluids and methanol with cubic EoS. Fluid Phase Equilibria, 94: 181-216. A cubic equation of state, with simple non-density-dependent mixing rules, is used to represent the phase behaviour of multicomponent mixtures containing hydrocarbons up to n-octane, nitrogen, carbon dioxide, hydrogen sulphide, water and methanol. The reliability of the model is tested against diverse experimental VL and VLL equilibrium data of multicomponent systems. The proposed correlation can be applied for efficient design and operation of transfer lines and processing units. The practical value of the theoretically correct concept of density dependence is tested on a density-dependent version of the above mixing rules. It is demonstrated that while both mixing rules produce very similar results when only one polar component is present, the density-dependent mixing rules may be inferior for mixtures containing both water and methanol, owing to an inherent deficiency. It is also demonstrated that an invariant version of the proposed non-density-dependent mixing rule may not lead to indisputably improved predictions for the studied systems. © 1994.

    Original languageEnglish
    Pages (from-to)181-216
    Number of pages36
    JournalFluid Phase Equilibria
    Volume94
    Issue numberC
    Publication statusPublished - 15 Mar 1994

    Keywords

    • application
    • equation of state
    • hydrocarbons
    • methanol.
    • mixing rules
    • petroleum
    • polar
    • theory
    • vapour-liquid equilibria
    • water

    Fingerprint

    Dive into the research topics of 'Prediction of VL and VLL equilibria of mixtures containing petroleum reservoir fluids and methanol with a cubic EoS'. Together they form a unique fingerprint.

    Cite this