Model of bound water formation in fractal clusters resulting from reversible aggregation of colloidal particles

Ugrozov, V. V.

doi:10.1134/s1061933x11040168

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Model Of Diffusion Transfer Through a Two Layer Membrane1

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2015

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Cited by 4 publications

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“…This difference is known as the "effect of diffusion asymmetry." At present, several possible mechanisms responsible for the appearance of the asymmetry effect have been suggested [1][2][3][4][5][6][7][8][9][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

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Transmembrane gas transfer through a two-layer membrane

Ugrozov

2015

Colloid J

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Gas diffusion through a two layer membrane is studied within the lattice model of an ideal gas. Analytical expressions are derived for transmembrane diffusion gas flux and permeability of the membrane. It is revealed that the value of the transmembrane gas flux may depend on the membrane orientation. An expression is obtained for the asymmetry coefficient of diffusion gas transfer. It is shown that the revealed effect of asymmetry of membrane diffusion permeability arises in the case of nonlinear sorption isotherms. The results obtained can be used to predict the separating characteristics of composite membranes. Layer 1 Layer 2 0 l 2 l J D1 p in Layer 1 Layer 2 J D1 J D2 D D J J J = = 2 ≠ 12 21 , J J ≠ 12 21 P P ≠

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Section: Resultsmentioning

confidence: 99%

“…(12) leads to (15) Hence, Eqs. (14) and (15) show that nonlinear sorption characteristics of membrane layers can noticeably affect the permeability of a composite membrane.…”

Section: Model Of Diffusion Transfer Through a Two Layer Membranementioning

confidence: 99%