Experimental Study of O2-Enriched CO2 Production by BaCo0.8B0.2O3−δ (B=Ce, Al, Fe, Cu) Perovskites Sorbent for Marine Exhaust CO2 Capture Application

An effective approach for reducing CO2 emissions from marine exhaust is adopting oxyfuel combustion technology. A series of B-site doped BaCo0.8B0.2O3−δ (B=Ce, Al, Fe, Cu) perovskites as novel oxygen carrier applications were prepared by the sol-gel method. The desorption characteristics and effects adsorption/desorption temperature, volume flow rate, partial pressures, adsorption time researched in fixed bed reactor. surface morphology size was observed scanning electron microscope (SEM). Results showed that BaCo0.8Al0.2O3−δ BaCo0.8Ce0.2O3−δ have comparable performance, considering cost raw materials. selected candidate further study. optimal pressure studied detail. best operating parameters determined to be 850 °C/850 °C 200 mL/min 100% pressure, 30 min absorption time, respectively. Furthermore, multiple cycle results indicate sorbent has high reactivity cyclic stability.