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Permeation of gases through liquid films

Sujatha, K and Das, TR and Kumar, R and Gandhi, KS (1988) Permeation of gases through liquid films. In: Chemical Engineering Science, 43 (6). pp. 1261-1268.

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Permeation of gases through single surfactant stabilized aqueous films has previously been studied in view of the potentiality of foam to separate gaseous mixtures. The earlier analysis assumed that the gas phase was well mixed and that the mass-transfer process was completely controlled by the liquid film. Permeabilities evaluated from single film data based on such analysis failed to predict the mass-transfer data obtained on permeation through two films. It is shown that the neglect of gas-phase resistance and the effect of film movement is the reason for the failure of the well-mixed gas models. An exact analysis of diffusion through two films is presented. It successfully predicts the experimental data on two films based on parameters evaluated from single film data.

Item Type: Journal Article
Publication: Chemical Engineering Science
Publisher: Elsevier science
Additional Information: Copyrights of this article belongs to Elsevier Science Ltd.
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 27 Jan 2010 11:59
Last Modified: 19 Sep 2010 05:39
URI: http://eprints.iisc.ac.in/id/eprint/21997

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