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Increasing the effective interfacial area in plastic packed absorption columns.

✍ Scribed by V. Linek; V. Stoy; V. Machon̆; Z. Kr̆ivský

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
509 KB
Volume
29
Category
Article
ISSN
0009-2509

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✦ Synopsis

Effective interfacial areas for gas absorption were measured at various irrigation rates for Raschig rings made of a ceramic (industrial porcelain) and of various plastics. The plastics used were polyethylene and polypropylene having very low wettabilities with water. The surface of some of the plastic packings was covered with a hydrophilic layer. The absorption of pure oxygen by a sodium sulphite solution containing cobalt catalyst was used for the measurement of effective interfacial area. It has been found that the effective interfacial area of plastic packings was about 40 per cent of that of geometrically similar ceramic packings. The effective interfacial area of the plastic packings was increased about 2.5 times by application of the hydrophilic layer. Thus, the wetted surface areas of plastic packings with hydrophilic surface and of ceramic packings are practically the same.

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