The main feature of the dual-drive stirred absorber is that the stirring of the gas phase and liquid phase is independently controlled, with stirring speeds that can be individually adjusted, thus providing broad adaptability. By varying the rotational speeds of the gas and liquid phases, the absorption rate can be measured to determine its mass transfer mechanism; alternatively, by adjusting the concentration of the liquid or gas phase, the mass transfer rate on the gas film side or the liquid film side can be determined.