Parametric study of GT and ASU integration in case of IGCC with CO2 removal

摘要: Abstract One of the most promising technologies for coal-to-electricity conversion considering CO 2 removal is coal gasification process integrated with a combined cycle (IGCC). ideas IGCC efficiency increase integration including well-known ASU-GT coupling by compressed air and nitrogen streams. In this case, idea based on supplying from GT compressor to ASU where it replaces in electrical-driven compressors. From energy effectiveness point view, should reduce electricity consumption losses auxiliary transformer. It also be noted, that polytropic large compression stages like usually higher than smaller units as The main goal present paper check if air-side has positive impact efficiency, assuming unit syngas-dedicated machine massive applied. general conclusion case dedicated unit, pressure ratio relatively high, not recommended view.