Gas absorption in packed columns: Liquid phase resistance in the loading region

✍ Scribed by J. E. Vivian; P. L. T. Brian; V. J. Krukonis

• Publisher: American Institute of Chemical Engineers
• Year: 1967
• Tongue: English
• Weight: 255 KB
• Volume: 13
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690130132

✦ Synopsis

Data on liquid phase-controlled gas absorption in the loading regime are presented. Carbon dioxide was desorbed from water by using a 6-in. diameter tower and $5and %-in. ceramic rings. Below the loading point, Hr, increases opproximotely as the 0.25 power of the liquid rate and is independent of g a s rate. In the loading regime, however, it was found that at high gas rates HL increases less rapidly and may even decrease with increose in liquid rate, and that at low gas rotes Hr, increases more rapidly with an increase in liquid rate. At intermediate gas rates, the effect of liquid rate on HL is intermediate. These effects are explained on the basis of the interaction of the gas and liquid flow robes and the effect of this interaction on kL and a.

The results suggest that in some cases tower capacity may be increased without increasing HL.