Binary and multicomponent mass transfer at high transfer rates

Krishna, R. (1981) Binary and multicomponent mass transfer at high transfer rates The Chemical Engineering Journal, 22 (3). pp. 251-257. ISSN 0300-9467

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An examination is made as to whether an explicit method can be obtained for calculation of the transfer fluxes of individual species Ni during steady-state diffusion of an ideal gas mixture across a planar film. It is shown that the transfer fluxes can be calculated explicitly, without an iterative procedure, for the following three cases: (i) all cases of binary mass transfer, (ii) multicomponent mass transfer with equal constituent binary pair diffusivities, and (iii) multicomponent mass transfer with small driving forces. It is demonstrated that for the general case of multicomponent mass transfer with high transfer fluxes an iterative procedure is inevitable. An improved iterative procedure for the calculation of Ni is suggested and arguments, including a numerical example, are presented to support it.

Item Type:Article
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ID Code:65560
Deposited On:17 Oct 2011 02:50
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