Economic Evaluations of CO2 Capture Process from Power Plant Flue Gas Using Dry Sorbents

We studied the economic evaluations on Korea Institute of Energy Research (KIER)'s CO2 capture process using dry sorbents, and compared the results with those of comparable technologies. Capital and operating costs of the CO2 capture system for 500 MW coal fired power plant were estimated to determine the economic feasibility. LCOE (Levelized Cost of Energy) and CO2 capture cost appeared 32.46$/MWh and 28.15$/tonCO(2), respectively. The internal rate of return (IRR), the net present values (NPV), and the payback period (PBP), were calculated by assuming several variables. As the result of calculation, IRR of KIER's CO2 capture system was 15%, NPV was calculated 6,631,000$, and PBP was 5.93 years at $50/tCO(2) of CER price. Consequently, this process can compete with other comparative processes using dry sorbents.