Abstract

A method of eliminating the “stagnant film” end-effect on a wetted-wall column has been devised and appears to be satisfactory. The transient rates of absorption of CO 2 into NaOH, Na 2CO 3/NaHCO 3 and Na 2SO 4 solutions have been measured for times up to one second. The results are to be used for comparison with absorption in packed columns, as will be reported in Part II. The kinetics of the various processes are discussed, particularly the marked influence of ionic strength on reaction rates. The catalytic effect of arsenite ions on the reaction between CO 2 and water has been measured.

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