溶体中への下向きノズルからのガス吹き込み反応

抄録

The mixed gas containing SO₂ was blown into the H₂O₂ aqueous solution with a vertical down-blow nozzle. The absorption percentage of SO₂ has been measured as a function of the nozzle diameter (1.25-5.9mm), the submerged depth of nozzle (L;-5-20cm) and the gas flow rate (30-80dm³/min). The jet trajectory length S (cm) were measured simultaneously, and the relationship among S, Reynolds number N_Re and the absorption percentage of SO₂ were considered.
When the gas was blown from a nozzle of small diameter, high absorption percentage of SO₂ should be obtained even if the gas flow rate was low and the submerged depth of nozzle was shallow. SO₂in the mixed gas would be absorbed perfectly by the solution when N_Re and L satisfy the next equation.
N_Re>245 (16-L)² (-2≤L≤8)
It was found that S was given by
S=6.8×10^-3N_Re^0.76+L(0≤L)
It seems advantageous to let the nozzle be submerged deep to gethigher fraction reacted in the injection with a vertical down-blow nozzle.