Longitudinal mixing in a liquid-filled column packed with four sizes of Raschig-rings

6×6

8×8

10×10 and 12×12 mm

using an air-water system

was studied in terms of velocities of the gas and liquid phases and the relative height of π-shape pipe. From analysis with a minicomputer

the following expression was obtained The experimental results showed that longitudinal mixing in a liquid-tilled column was comparable to that in a dry packed column.