Oxy-coal combustion is one of the technical solutions for Mitigating CO2 in thermal power plants. :Many processes have been evolved in past the decade to capture CO2 from processes industries, Researchers at the National Energy Technology Laboratory (NETL) have patented a process, integrated pollutant removal (IPR), that uses off the shelf technology to produce a sequestration-ready CO2 stream from an oxy-combustion power plant. The IPR process as it is realized at the Jupiter Oxygen Burner Test Facility is a spray tower (direct-contact heat exchanger) followed by four stages of compression with intercooling. To study the energy flows of the oxy-combustion process, a 15 MWth oxy-combustion pulverized-coal-fired plant integrated-With the IPR system was simulated and analyzed using ASPEN Plus and ASPEN energy analyzer. This paper discusses flue-gas recycle, energy flow, recovery, and optimization of IPR systems. ASPEN models of heat.: and mass-transfer processes in a flue-gas-condensing heat-exchanger system were developed to predict the :heat transferred from flue gas to cooling water. The flue-gas. exit temperature, cooling water outlet temperature, and energy flows of IPR streams Were computed using ASPEN model's. Pinch principles are deployed for targeting design and operation-guiding purposes and balancing the heat and mass transfer in the IPR system. The results are expected to support sophistication of the IPR system design, improving its application in a variety of settings. They open the door for valuable IPR efficiency improvements and generalization of methodology for simultaneous Management of energy resources.