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 K_Ga. The relation between K_Ga 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 P_v.
It was expressed by:
K_GA=KP_V : D_t=10.6-18.4, ε=0.3-0.7, P_V=5X10⁰-2X10²: K=5.5X10⁹ (oxygen-sodium sulphite solution system)
where D_t is diameter of vessel, ε is ratio of volume of liquid to volume of vessel.