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Citation: Liu Guangming, Qiu Fali, Guo Shendu. STUDY ON THE REDUCIBILITY OF Ni-CATALYST FOR CH₄-H₂O REFORMING[J]. Chinese Journal of Applied Chemistry, ;1988, 5(3): 92-94. shu

STUDY ON THE REDUCIBILITY OF Ni-CATALYST FOR CH₄-H₂O REFORMING

1.
Chengdu Insitute of organic Chemistry, Academia Sinica

Received Date: 19 February 1987
Available Online: 23 December 1987

NiO catalysts for methane-Steam reforming were investigated by temperature programmedr eduction (TPR) and X-ray diffraction techniques. The peak temperatures of reduction on the TPR curve as determined in N₂-H₂ (6.3% H₂) were: 415℃ for NiO-A₁, 430℃ for NiO-A₂, 378℃ for NiO-Y₂O₃-A₁, 372℃ for NiO-RE₂O₃-A₁ and 478℃ for RE₂O₃-NiO-A₁. Carrier At is found to be superior to A₂. Catalysts modified by heavy rare-earth oxides have the lowest peak temperature of reduction, and hence they are more effective in the entrance region of the reforming furnace, where the reaction temperature is 360-550℃. The mechanism of addition of rare earth oxides on the behaviour of the catalysts are briefly discussed.
- Methane-steam rcforming,
- Ni-catalysts,
- Rare-earth oxides
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STUDY ON THE REDUCIBILITY OF Ni-CATALYST FOR CH₄-H₂O REFORMING