Effect of support composition and metal loading on Au catalyst activity in steam reforming of methanol |
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| Authors: | Chinchanop Pojanavaraphan Apanee Luengnaruemitchai Erdogan Gulari |
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| Affiliation: | 1. The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand;2. Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand;3. Department of Chemical Engineering, University of Michigan, MI, USA |
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| Abstract: | Gold (Au) supported on CeO2–Fe2O3 catalysts prepared by the deposition-coprecipitation technique were investigated for steam reforming of methanol (SRM). The 3 wt% Au/CeO2–Fe2O3 sample calcined at 400 °C achieved 100% methanol conversion and 74% hydrogen yield due to a strong Ce–Fe interaction in the active solid solution phase, CexFe1−xO2. The sintering of Au particles was observed when the highest metal content of 5 wt% was registered, which worsened the SRM activity. According to the TPR and TPO analysis, it was found that the transformation of the α-Fe2O3 structure in the mixed oxides and the coke deposition were the main factors for the rapid deactivation of the catalyst. |
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| Keywords: | Steam reforming Methanol Hydrogen Au catalyst CeO2 Fe2O3 |
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