The effective interfacial area and the local liquid-side mass-transfer coefficient of the novel compound rotating zigzag bed were determined by absorbing of CO2 gas with different concentrations of NaOH solution, the effects of liquid volumetric flow rate, gas volumetric flow rate and rotational speed were investigated. The results showed that effective interfacial area and local liquid-side mass-transfer coefficient in the novel compound rotating zigzag bed increased with the increase of liquid volumetric flow rate, gas volumetric flow rate and rotational speed. Compared with the rotating zigzag bed, the effective interfacial area of the novel compound rotating zigzag bed increased by 7%~159%, however, the local liquid-side mass-transfer coefficient reduced by 7.7%~18.2%. Eventually, the local volumetric liquid-side mass-transfer coefficient increased by 4%~132%.
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