Enhancement of CO2 Absorption Process Using High-Frequency Ultrasonic Waves

The advancement of efficient carbon capture technology is vital for the transition to a net-zero future. Critical developments in ultrasonic irradiation can be used enhance conventional CO2 absorption process. For example, sonophysical effects such as acoustic streaming, cavitation, fountain and atomization induced by propagation high-frequency waves liquid medium mixing create larger interfacial area gas–liquid mass transfer. In this study, performance continuous ultrasonic-assisted process using MDEA was investigated. design experiment (DOE) study effect gas flowrate, flowrate power on performance. Based findings, most significant parameter affecting outlet concentration, liquid-to-gas ratio (L/G) transfer coefficient (KGa), which confirmed that has impact intensification optimum condition achieve target numerically determined validated with experimental tests. results from verification runs were good agreement predicted values, average error less than 10%.