Mass transfer with chemical reaction from single gas bubbles

✍ Scribed by A. I. Johnson; A. E. Hamielec; W. T. Houghton

• Publisher: American Institute of Chemical Engineers
• Year: 1967
• Tongue: English
• Weight: 501 KB
• Volume: 13
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690130232

✦ Synopsis

Numerical solutions of the equations that describe steady state, forced-convection mass transfer around single circulating or noncirculating gas bubbles have been obtained for both first-and second-order chemical reaction conditions. For the noncirculating bubbles, solutions have been obtained up to Reynolds numbers of 200 with Kawaguti velocity profiles used to describe the flow. In the case of circulating gas bubbles, Kawaguti profiles have been utilized up to Reynolds numbers of 80, while the potential flow velocity profiles have been used for higher Reynolds numbers. The numerical results for circulating gas bubbles have been compared with penetration theory for both first-and second-order chemical reactions. For the case of noncirculating gas bubbles the solutions for physical mass transfer have been compared with the Ranz and Marshall correlation as well as with the results of Griffith and the more recent work of Tsubouchi and Masuda.

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