Comparative Study on Different IGCC Systems with Quasi-Zero CO2 Emission

This paper studies different IGCC systems with CO2 recovery. In order to effectively reduce CO2 emissions from the IGCC system, several kinds of IGCC systems with quasi-zero CO2 emissions have been studied in this paper. The key parameters affecting the IGCC systems' performance have been analyzed and compared. The systems' performances have been investigated based on comparison of different IGCC systems. The obtained results show that integrating the IGCC system with an advanced thermal cycle is an effective and feasible way. The performances of the IGCC systems with O-2/CO2 cycle and syngas separation are better than that with a simple semi-closed O-2/CO2 cycle. The research achievements will provide valuable information for further study on IGCC systems with low CO2 emissions.