Global trends in environmental protection point to the need to reduce emissions of carbon dioxide contributing to the greenhouse effect. Since the primary fuel used in the power industry is coal, the power industry is the largest emitter of CO₂, justifying a particular focus on reducing the emissions fromthis source. At present, adsorption technologies for CO₂ capture are not yet used on a commercial scale, and there is a lack of adequate information concerning their effects on energy units. IPSEpro software was used for modeling a reference thermal-steam cycle power unit with an 833MWe load, and CO₂ separation fromthe flue gas unit (which is based on adsorptionmethods). This study analyzed PTSA (Temperature Pressure Swing Adsorption) technology, which represents a combination of two separation technologies – PSA (Pressure Swing Adsorption) and TSA (Temperature Swing Adsorption). After the development of the systems of the power unit, the carbon dioxide capture unit and other technological installations were integrated into the thermal-steam cycle of the power unit. Integration in this case relied on the optimal arrangement of all the equipment necessary to carry out the task of reducing emissions of carbon dioxide in the steam cycle of the power unit. The data obtained from the model’s calculations allowed for accurate analysis of the impact of the separation of CO₂. It was also possible to evaluate other devices needed for the implementation of the process of CO₂ capture and preparation for transport in liquid form, considering the unit load and the cycle efficiency. The analysis made it possible to estimate the carbon dioxide amount not emitted into the atmosphere, a key factor in measuring the impact of power plants on the environment.