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ABSORPTION AND DESORPTION TO AND FROM LIQUID FILMS ON INCLINED PLANES |
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| Authors: | Walter J Thomas Mohamed A El-Sawy Edward W Palmer |
| Affiliation: | a Chemical Engineering Department, University of Surrey, Guildford, Surrey, England |
| Abstract: | Two published theoretical models are examined and applied to experimental results for absorption and desorption. The system used was CO2/H2O and studies were made for liquid film flow down inclined planes. Experimental results give “Reduced” values of mass ransfer rates.
Interferometric studies give interfacial concentration, penetration and film depths, and take-up of carbon dioxide. In the case of desorption the interferograms are distorted by “deflections.” All the experimental values for absorption and desorption differ from those calculated from theoretical models. Desorption is not a mirror image of absorption, and it is approximately 75% of the transfer rate of absorption over a wide operating range. A comparison is made of the behaviour of static pools and flowing liquid films. |
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