Performance of confined plunging liquid jet bubble column as a gas-liquid reactor

摘要

The volumetric mass transfer coefficient in a confined plunging liquid jet (CPLF) bubble column absorber was determined during a steady-state absorption of CO_2 in sodium carbonate and bicarbonate solutoin with an addition of hypochlorite catalyst.special care was paid while choosing the suitable reactionrate to account for the two different zones in the absorber (mixing zone and pipe flow zone) where the volumetric mass transfer coefficients differ by an order of magnitude. The determined mass transfer coefficients reached 0.6 s~(-1) and appeared to be 50% lower than those determined during physical absorption of CO_2. Energetic efficiency of the examined CPLF contactor was also calculated.