Membrane separation operations are still seldom used in refining today. The potential applications of the different ultrafiltration, pervaporation and gaseous permeation technologies are described in the other section. Since selectivity is kinetic, a membrane separation module separates a mixture into products whose composition may be very far from thermodynamic equilibrium. Provided the membrane is sufficiently […]
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Membrane Separation
Separation can also be based on kinetic selectivity, i.e. on a difference in migration velocity of the relevant components. This principle is used in a membrane separation operation as represented schematically in Figure 1.5 for a binary mixture of two components A and B. Separation is based on the difference in diffusion velocity of components […]
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