In addition, the captured CO2 has to be compressed, if utilization is not available on-site, which also induces further energy expenses. The comparative analysis highlights the energy benefits from replacing the thermal stripping with microbial mediated CO2 stripping from the CO2 rich amines due to the high reboiler heat duty in the thermal stripper of 3.56 GJ t -1 CO2, which represented 96.48% of the energy requirements for the carbon capture excluding the CO2 compression (86.41% including the CO2 compression) (Figure ).