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Publication Detail
A methodology for predicting phase inversion during liquid-liquid dispersed pipeline flow
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Ngan KH, Ioannou K, Rhyne LD, Wang W, Angeli P
  • Publisher:
    INST CHEMICAL ENGINEERS
  • Publication date:
    03/2009
  • Pagination:
    318, 324
  • Journal:
    CHEM ENG RES DES
  • Volume:
    87
  • Issue:
    3A
  • Print ISSN:
    0263-8762
  • Language:
    EN
  • Keywords:
    Liquid-liquid dispersions, Mixture viscosity, Phase inversion, Rheology, IMMISCIBLE LIQUIDS, VISCOSITY, SUSPENSIONS, EMULSIONS, PARTICLES
  • Addresses:
    Angeli, P
    UCL
    Dept Chem Engn
    London
    WC1E 7JE
    England

    China Univ Petr
    Beijing Key Lab Urban Oil & Gas Distribut Technol
    Beijing
    Peoples R China
Abstract
In this paper, a methodology is developed for predicting the phase inversion point in dispersed liquid-liquid flows. It is suggested that phase inversion happens at the phase fraction where the difference in viscosities between the two possible dispersions, oil continuous and water continuous, is zero, which enables the transition from one continuous phase to the other. A large number of literature correlations were used to calculate the mixture viscosity and the predicted phase volume fractions for inversion were compared against experimental data. From the various viscosity models, those by Brinkman [Brinkman, H.C., 1952, The viscosity of concentrated suspensions and solutions, J Chem Phys, 20(4): 571], Roscoe [Roscoe, R., 1952, The viscosity of suspensions of rigid spheres, Br J Appl Phys, 3: 267-269], Furuse [Furuse, H., 1972, Viscosity of concentrated solution, Jpn J Appl Phys, 11(10): 1537-1541] and Pal [Pal, R., 2001, Single-parameter and two-parameter rheological equations of state for nondilute emulsions, Ind Eng Chem Res, 40: 5666-5674] always predicted phase inversion within the experimental range. In addition, the phase inversion points predicted with the proposed methodology were very close to both the experimental finding and model by Yeh [Yeh, G.C., Haynie Jr., F.H., Moses, R.A., 1964, Phase volume relationship at the point of phase inversion in liquid dispersions, AIChE J, 10(2): 260-265]. (C) 2008 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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