کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1277244 | 1497618 | 2009 | 10 صفحه PDF | دانلود رایگان |
Open cell metal foams made from Ni, Fe–Cr steel and Ni–Al intermetallic were studied as candidate catalyst supports for the internal indirect methane steam reforming. All the samples exhibited good corrosive resistance during 500–1000 h testing in H2–H2O–Ar environment at 600 °C. NiO/8YSZ composite based catalysts doped with fluorite-like (Pr0.3Ce0.35Zr0.35O2) or perovskite-like (La0.8Pr0.2Mn0.2Cr0.8O3) complex oxides with high lattice oxygen mobility and promoted with Pt or Ru were prepared and deposited on the foam-structure supports. Both good catalyst adhesion and stable catalyst performance were achieved in the case of the Ni–Al foam supported catalysts. The Fe–Cr support reacted with the catalytic active components resulting in fast catalyst deactivation. The foam supported catalyst performance was compared with the same catalyst prepared in a form of 0.25 mm fraction. Porous supports with different porosities were prepared by the metal foam deformation and the catalyst performance depending on the support porosity (75–95%) was studied.
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 23, December 2009, Pages 9505–9514