Dry-Oxy Methane Reforming with Mixed e-/CO32- Conducting Membranes

We report here an alternative way to make syngas from dry-oxy methane reforming with CO2 and O-2 directly captured from flue gas by a mixed e(-)/CO32- conducting membrane in a single reactor loaded with a reforming catalyst. The mixed e(-)/CO32- conducting membrane is comprised of a porous electronic conductor (silver) with the skeleton overcoated with a nanoscaled ZrO2 within which a molten carbonate is withheld. The reforming catalyst is Ni supported on MgO impregnated with 1 wt % Pt (NMP). With a simulated flue gas as the CO2/O-2 source and CH4-Ar as the sweep gas, the reactor can convert >82% CH4 under all conditions tested. The rates of H-2 and CO production reach as high as 4.0 and 4.2 mL min(-1) cm(-2), respectively, at 800 degrees C. A long-term test shows a reasonably stable performance within 115 h. Overall, this work demonstrates the technical feasibility of a new capture-and-conversion all-in-one CO2 reactor for efficient and cost-effective syngas production via dry-oxy methane reforming.