In the study of Jackson and Brodal the authors investigated the effect of the number of compression stages with a fixed stage pressure drop of 0.5 bar for postcombustion capture and found that 9 stages were optimal in terms of power when starting from 1 bar. Adding one more compression stage, i.e., 10 stages in total, resulted in increasing power consumption, likewise for less than 9 stages. This is in perfect agreement with the results of the present study for 0.5 bar pressure drop.