Absorption of CO2 from a CO2/N-2 mixture with propylene carbonate (PC) as the absorbent using a rotating packed bed (RPB) in pilot scale was systematically investigated in this paper. RPB is characterized by simple operation and high efficiency with small volume, which may be an alternative method for CO2 removal offshore. The effects of operating parameters on the removal efficiency of CO2 and the K(y)a values such as temperature, pressure, inlet liquid flow rate and the rotational speed of RPB were studied. Experimental results indicated that the efficiency of this absorption process could be regulated by appropriate operating conditions of the RPB. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.