Coal power plants with carbon capture technology can help reduce CO2 emissions, but they are expensive to run. This study compared two types of coal power plants with CO2 capture: one using a Selexol absorption process and the other using chemical looping combustion. The second plant was more efficient and cost-effective. The Selexol plant's efficiency increased with less CO2 capture, but this also led to higher CO2 emissions. The findings suggest that the chemical looping combustion plant is a better economic choice for reducing CO2 emissions in coal power plants.