Effects of sonic vibrations on the rate of absorption of carbon dioxide in gas bubble‐beds

Abstract

The effect of sonic vibrations of frequencies 20–2000 c/s on the rate of absorption in water of carbon dioxide by a countercurrent bubble‐type absorber has been measured in terms of K_La. Increases in K_La of up to 70% have been observed for the expenditure of relatively small amounts of sonic power. By determining the bed density and the average bubble diameter in the bed as a function of frequency, it has been possible to show that the effect of sound is primarily to increase the number of bubbles present without affecting their diameter appreciably. The effects of temperature and bed height on the performance at various frequencies are also evaluated.