Process integration of a Calcium-looping process with a natural gas combined cycle power plant for CO2 capture and its improvement by exhaust gas recirculation
Exhaust gas recirculation is essential for decarbonising a NGCC by Ca-looping. Ca-looping incurs greater energy penalty at NGCC than at coal power plant. Energy penalties incurred by Ca-looping were compared to those by amine processes. Operating conditions of Ca-looping must be adjusted against varying CO2 contents. Changes of Ca-looping operating conditions affect the NGCC performance greatly.