Meeting of Micro/nanobubble Technique
With the development of the micro-scale bubble generation technique to obtain bubbles whose size is < 50 µm, considerable attention has been paid to the utilization of the so-called "minute-bubbles". Minimizing bubble formation in gas-liquid systems helps achieve the following: i) acceleration of mass transfer and reactive absorption with an increase in the gas-liquid interfacial area, ii) increase in the average residence time of the bubbles with a decrease in buoyancy, and iii) occurrence of interactions at the gas-liquid interface. Thus, by increasing the residence time of bubbles in the liquid phase, a quasi-homogeneous gas-liquid system can be obtained. Furthermore, when external energy is supplied to an aqueous solution containing minute-bubbles, unique mass-transfer patterns and reaction phenomena are expected to occur.
Section of Reaction Field Engineering
Division of Chemical Reaction Engineering, Society of Chemical Engineers, Japan