Feasibility of separation processes in liquid-liquid solid systems: Free energy and stability analysis

Authors

  • Malcolm T. Jacques,

    Corresponding author
    1. Department of Chemical Engineering, West Virginia University, Morgantown, West Virginia 26506
    • Energy Laboratory, 31-261G, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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  • A. David Hovarongkura,

    1. Department of Chemical Engineering, West Virginia University, Morgantown, West Virginia 26506
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  • Joseph D. Henry Jr.

    1. Department of Chemical Engineering, West Virginia University, Morgantown, West Virginia 26506
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Abstract

The feasibility of new solid/liquid separation processes, such as solids removal from oil and certain tertiary oil recovery techniques, can be evaluated by a thermodynamic stability analysis of possible liquid-liquid-particle configurations. The thermodynamic stability and hence feasibility of two possible liquid-liquid-particle separation process is predicted by use of a free energy analysis. Stability is shown to depend primarily on droplet/particle size ratio (n) and three phase contact angle (θ). Stability criteria are presented which can be applied to many particle and liquid separation processes.

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