A comparison between chemical absorption with rapid first-order reactions and physical absorption in one packed column
✍ Scribed by K.J.A. de Waal; W.J. Beek
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 643 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
In continuation of a previous paper [l], this paper discusses the absorption of oxygen in sodium sulphite solutions with varying reaction velocity constants (Section 3) and the absorption of carbon dioxide in water (Section 4), both in ene column with a l-in. Raschig ring packing.
From the experiments with chemical absorption the surface renewal rate of the liquid, s, was determined. From this and from the measurements of the interfacial area, a, [l] a.J%&alues were obtained. These values are compared with the kLO-values obtained from the experiments on physical absorption. For relatively low gas and liquid flow rates the a.&%alues agree very wel1 with the ULO-values, but above the loading point the values obtained with chemical absorption are larger than those obtained with physical absorption. A tentative explanation for this differente is given.