A novel catalyst-sorbent system for an efficient H2 production with in-situ CO2 capture

► Sorption-enhanced methane steam reforming is experimentally demonstrated. ► A highly active Rh/CeαZr1−αO2 catalyst and K2CO3-promoted hydrotalcite are utilized. ► The process is studied in response to temperature (400-500 °C), pressure (1.5-6.0 bar), and steam/carbon ratio (3-6). ► Direct production of high H2 purity and fuel conversion >99% is achieved with low level of carbon oxides impurities (<100 ppm).