Approximate expressions for predicting the effect of fast second-order chemical reactions on interphase mass-transfer rates
✍ Scribed by E.N. Lightfoot
- Publisher
- Elsevier Science
- Year
- 1962
- Tongue
- English
- Weight
- 388 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
Simple limiting expressions are derived for predicting the rate of absorption of solute A into a phase already containing a dissolved species B, which reacts instantaneously and irreversibly with A. These limiting expressions, equations (L), (H) and (A), which are not sensitive to system geometry, provide useful upper and lower bounds about the result of exact calculation, and will almost always permit estimation of absorption rate with acceptable accuracy. Further it is shown that the exact relations for the penetration, laminar boundary-layer and partially turbulent film models can all be almost exactly fitted by a single relation, Eq. (E) of the form NuA/Nu? =