CO2 capture in natural gas combined cycle with SEWGS. Part A: Thermodynamic performances

► SEWGS can avoid about 86% of CO2 with only 6.4% points of efficiency penalty. ► Sorbent capacity is critical to make SEWGS a competitive technology. ► SEWGS achieves a higher efficiency than amine scrubbing technology. ► SEWGS can guarantee a CO2 purity above 99% with reduced efficiency penalties. ► SEWGS achieves a specific energy consumption for CO2 avoided of 2.5MJ/kgCO2.