We studied the economic evaluations on Korea Institute of Energy Research (KIER)'s CO 2 capture process using dry sorbents, and compared the results with those of comparable technologies. Capital and operating costs of the CO 2 capture system for 500 MW coal fired power plant were estimated to determine the economic feasibility. LCOE (Levelized Cost of Energy) and CO 2 capture cost appeared 32.46$/MWh and 28.15$/tonCO 2 , respectively. The internal rate of return (IRR), the net present values

more »

... PV), and the payback period (PBP), were calculated by assuming several variables. As the result of calculation, IRR of KIER's CO 2 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.