Effect of Flue Gas Composition on the Design of a CO2 Capture Plant

According to studies conducted by the International Energy Agency, the energy sector is the biggest producer of greenhouse gas emissions (CO2), having important environmental consequences. Various alternatives have been sought to reduce CO2 emissions during electric production, highlighting as an alternative, the implementation of CO2 capture and storage plants. In this work, it is shown the global optimization of a coupling CO2 capture plant to an electric power plant, having as objective function minimize the energetic requirements of the process. For this study, it was considered four different fuels in the power plant; biogas, coal, non-associated natural gas, and associated natural gas. Two operating scenarios are considered: in the first, generate the same combustion gas flow for all the proposed fuels and in second, obtain the same energy demand with the 4 fuels. For the design and simulation, the software ASPEN Plus simulator was used.