The catalytic performance of Ni/MgSiO3 catalyst for methane steam reforming in operation of direct internal reforming MCFC
- The catalytic performance of Ni/MgSiO3 catalyst for methane steam reforming in operation of direct internal reforming MCFC
- ZhenLan Li; Hary Devianto; Heock-Hoi Kwon; 윤성필; 임태훈; 이호인
- Molten carbonate fuel cell; Unit cell; Methane reforming; Ni catalyst; Electrolyte
- Issue Date
- Journal of industrial and engineering chemistry
- VOL 16, NO 3, 485-489
- Active and tolerant Ni-based catalyst for methane steam reforming in direct internal reforming molten
carbonate fuel cell (DIR-MCFC) was developed. Deactivation of reforming catalysts by alkalimetals from
electrolyte composed of Li2CO3 and K2CO3 is one of the major obstacles to be overcome in
commercialization of DIR-MCFC. Newly developed Ni/MgSiO3 reforming catalyst showed activities of
ca. 82% methane conversion for 240 min in out-of-cell test. In duration test, the unit cell containing Ni
foam impregnated with Ni/MgSiO3 in anode gas channel did not give performance degradation formore
than 2000 h, while the unit cell assembled with Ni/MgSiO3-coated anode showed a significant
performance loss after an operation of 1200 h. Results obtained from X-ray diffraction and Brunauer–
Emmett–Teller technique revealed that Ni sintering and support deterioration were decisive factors in
decreasing the catalytic activity.
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