Chemical Engineering Communications · 1983 · 54 citations · 11 references
EngineeringChemical EngineeringFluid DynamicsSurface ScienceTransport PhenomenaDroplet DynamicsInterphase Mass TransferMass TransferMass Transfer DynamicsSurface DiffusionSurfactantsAdsorption KineticsConcentrationConcentration DistributionCoupled Mass TransferDroplet TransportLiquid-phase KineticsMass Transfer MechanismsSurfactant Transport
Abstract The equations describing the retardation by surfactant of an essentially spherical droplet in creeping flow through an unbounded Newtonian liquid are developed in a general way. The concentration distribution is determined by convection and the coupled mass transfer processes of liquid-phase diffusion, adsorption kinetics, and surface diffusion. Assuming that mass transfer occurs rapidly, an asymptotic solution is obtained showing uniform retardation, treating both phases and all mass transfer mechanisms simultaneously. For slow mass transfer, an asymptotic solution is obtained for stagnant cap behavior. Additional informationNotes on contributorsJOHN A. HOLBROOK Present Address: Texaco, Inc., Bellaire Laboratories, Bellaire, TX 77401. M. DOUGLAS LeVAN Author to whom correspondence should be addressed.
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