Abstract
To stabilize the flow pattern and to evaluate capability as a gas absorber, experiments were performed with baffled vessels. Apparatuses used were three geometrically similar batch horizontal stirred vessels. Studies were madeon the transfer rate of oxygen into sodium sulphite solution.
Results obtained were :
1) In the experiments, Froude No. was varied over a wide range to correlate the overall volumetric absorbtion coefficient KGa. The relation between KGa and Froude No. fora baffled vessel accorded with the one obtaind for a non-baffled vessel in state A1 corresponding to the limited range of Froude No., in which the liquid is splashed violently by the impeller.
2) The over-all volumetric absorption coefficient KGawas approximately in proportion to power consumption per unit volume Pv.
It was expressed by:
KGA=KPV : Dt=10.6-18.4, ε=0.3-0.7, PV=5X100-2X102: K=5.5X109 (oxygen-sodium sulphite solution system)
where Dt is diameter of vessel, ε is ratio of volume of liquid to volume of vessel.
