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pro vyhledávání: '"Øystein Holt"'
Publikováno v:
Scopus-Elsevier
A theory of reversible flocculation in dilute monodisperse emulsions together with an intradoublet coalescence is proposed and compared with experimental data obtained through video enhanced microscopy. The averaged values of the coalescence time and
Publikováno v:
Journal of Dispersion Science and Technology. 18:517-537
In this experimental investigation of rapid Brownian coagulation in dilute oil-in-water emulsions, the absence of deformation influence on droplet interaction and drainage is established. The result is in agreement with the theory of Brownian coagula
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :593-607
A summary of the central problems of a colloidal chemical nature in offshore crude oil production and transport is presented. It is concluded that emulsified systems, mainly water/oil, are of high importance. Under North Sea conditions these emulsion
Autor:
Johan Sjo¨blom, Stanislav S. Dukhin, Svetlana V. Verbich, Øystein Holt, Øystein Sæther, Andrej Tarovski
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :209-223
The kinetics for emulsion coagulation retarded by the electrostatic repulsion between droplets in the micron size range was studied. The rather high electrokinetic potential is provided by the presence of 10−3 M NaOH. The enormous discrepancy betwe
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :195-207
The rapid and reversible coagulation of oil (toluene) droplets during their lateral diffusion inside glass microcapillaries was studied by means of video enhanced microscopy (VEM). The methodological problems arising in the application of VEM to the
Publikováno v:
Journal of Dispersion Science and Technology. 15:465-486
The hydrocarbon rich phase (L2) of the system trichlorofluoromethane CCl3F / water (electrolyte) / nonionic surfactant has been investigated by means of NMR self-diffusion measurements, and dielectric spectroscopy. The dielectric spectra were recorde