| 초록 |
Base on the energy and exergy analysis, the efficiency penalties and the energy required for CO2 capture in IGCC power plant has been investigated. ASPEN PLUS was used for process simulations with various conditions. From the simulation results, it can be concluded that the largest component of energy expenditure in CO2 capture is caused by CO2 liquefaction, followed by CO conversion and gas separation. Furthermore, exergetic efficiency of IGCC power plant achieves 47.4% with a gas turbine inlet temperature of 1250ºC. The largest exergy losses in IGCC plants, result from combustion of the syngas in combustor, gasification and syngas cooler. |
