Anomalous convective diffusion in films of polymeric solutions

Mashelkar, R. A. (1984) Anomalous convective diffusion in films of polymeric solutions AIChE Journal, 30 (3). pp. 353-362. ISSN 0001-1541

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/aic.690...

Related URL: http://dx.doi.org/10.1002/aic.690300302

Abstract

The process of gas absorption in freely falling films of dilute polymer solutions under different kinematic conditions shows some hitherto unreported and dramatic differences. The absorption rates are reduced when films are generated under rapid stretch conditions over axisymmetric bodies of revolution, whereas they are enhanced when films are generated in a long, wetted wall column. Absorption rates are enhanced on polymer addition in freely falling turbulent films. Possible mechanistic explanations have been offered for these phenomena.

Item Type:Article
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