Gas absorption with chemical reaction on a sieve tray

✍ Scribed by C.D. Eben; R.L. Pigford

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 806 KB
• Volume: 20
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(65)80073-2

✦ Synopsis

The rate of absorption of carbon dioxide into four different sodium carbonate-bicarbonate buffer solutions and a sodium hydroxide solution has been experimentally determined for a six-inch diameter sieve tray.

An analysis of these results using the penetration theory yields unexpectedly high values of interfacial area and contact time. Similar results had previously been obtained for packed columns [7].

It is proposed that this discrepancy is owing to the fact that the entire froth is not well mixed. This leads to some of the interfacial liquid becoming saturated with gas and thus ineffective for absorption. An analysis has shown that the fraction of ineffective area may be as much as 40 per cent of the total.