Abstract
The COMPOSITE concept combines packed bed chemical looping combustion (PBCLC) with chemical looping for oxygen production (CLOP) in an integrated gasification combined cycle for high efficiency power production. Detailed reactor modelling of the PBCLC and CLOP reactors was combined with process and power cycle modelling for the COMPOSITE plant in order to estimate the electric efficiency and CO2 avoidance. The efficiency of the COMPOSITE process amounted to 45.3% compared to 40.5-42% for the PBCLC-IGCC process and 37.7% for pre-combustion IGCC, with a CO2 capture efficiency of about 95%.