In this work the influence of adding an organic stripping component which is immiscible with water to the desorber of a Post-Combustion-Capture absorption-desorption process is examined. For that purpose a model for a three-phase equilibrium was developed: aqueous liquid phase with monoethanolamine (MEA), organic liquid phase and gas. In the aqueous liquid phase chemical reactions of dissolved CO2 have to be considered. Based on this model for the phase equilibrium, a multistage column model representing the desorber was set up. With this model for the desorber and a two-phase equilibrium model for the absorber, both implemented in MATLAB, the overall absorption-desorption process can be simulated. Moreover, a power plant model was set up in the commercially available process simulator UniSim Design in order to investigate the overall performance of a coal fired power plant with Post-Combustion-Capture of CO2. The results show that depending on the choice of the organic component added to the desorber, the boiling temperature of the reboiler of the desorber can be lowered significantly. However, the overall penalty for power plant including CO2 separation is in favor of the conventional two-phase regeneration. The physical effects for this behavior are presented in detail. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.