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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 8
BKCSDE 23(8)
August 20, 2002

Title	CH4 Dry Reforming on Alumina-Supported Nickel Catalyst
Author	Oh-Shim Joo, Kwang-Deog Jung
Keywords	Methane, Carbon dioxide, Dry reforming, Nickel aluminate, Carbon deposition
Abstract	CH₄/CO₂ dry reforming was carried out to make syn gas on the Ni/Al₂O₃ catalysts calcined at different temperatures. The Ni/Al₂O₃ (850 ℃) catalyst gave good activity and stability whereas the Ni/Al₂O₃ (450℃) catalyst showed lower activity and stability. The NiO/Al₂O₃ catalyst calcined at 850℃ for 16 h (Ni/Al₂O₃ (850℃)) formed the spinel structure of nickel aluminate, which was confirmed by TPR. The carbon formation rate on the Ni/Al₂O₃ (850℃) catalyst was very low till 20 h, and then steeply increased with reaction time without decreasing the activity for CH₄ reforming. The Ni/Al₂O₃ (450℃) catalyst showed high carbon formation rate at the initial reaction time and then, the rate nearly stopped with continuous decreasing the activity for CH₄ reforming. Even though the amount of carbon deposition on the Ni/Al₂O₃ (850℃) catalyst was higher than that on the Ni/Al₂O₃ (450℃) catalyst, the activity for CH₄ing was also high, which could be attributed to the different type of the carbon formed on the catalyst surface.
Page	1149 - 1153
Full Text	PDF

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