| 摘要 |
Disclosed is a process for preparing a stable PROX reaction catalyst, comprising the steps of (a) preparing a catalyst platinum supported on alumina; (b) calcinating the catalyst from step (a) at 300~600° C. for 2~4 hours; (c) contacting the catalyst obtained from step (b) with hydrogen at 300° C.~600° C. for 2~4 hours to reduce the catalyst; and (d) dropping the temperature in the reduced catalyst from step (c) to less than 100° C. and then contacting the catalyst with a predetermined solvent and/or gas while elevating the temperature to 300° C.-600° C. The catalyst has Pt-Al arrangement, the content of Pt being 0.5~7% by weight and has an overall shape of an oval.
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