The catalytic performance of Ni/MgSiO3 catalyst for methane steam reforming in operation of direct internal reforming MCFC

Title
The catalytic performance of Ni/MgSiO3 catalyst for methane steam reforming in operation of direct internal reforming MCFC
Authors
ZhenLan LiHary DeviantoHeock-Hoi Kwon윤성필임태훈이호인
Keywords
Molten carbonate fuel cell; Unit cell; Methane reforming; Ni catalyst; Electrolyte
Issue Date
2010-05
Publisher
Journal of industrial and engineering chemistry
Citation
VOL 16, NO 3, 485-489
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/39278
ISSN
1226-086x
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