The possibility of hot spot formation over granule Al2O3 supported Rh, Pt, and Pd catalysts in autothermal reforming of methane was studied by IR thermographical observation. The highest temperature in the methane combustion was 1256, 1322 and 1323 K over Rh/Al2O3, Pt/Al2O3 and Pd/Al2O3, respectively. The order of combustion was Pt ≈ Pd > Rh. Rh/Al2O3 exhibited higher reforming activity than Pt/Al2O3, and Pd/Al2O3 exhibited much lower activity than Rh/Al2O3 and Pt/Al2O3. Rh catalyst exhibited high methane conversion and low inlet temperature in the autothermal reforming of methane. This behavior could contribute to the effective inhibition of the hot spot formation.
|Number of pages||2|
|Journal||ACS Division of Fuel Chemistry, Preprints|
|Publication status||Published - 2004 Sep 1|
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