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Low temperature steam reforming of ethanol over supported noble metal catalysts

Panagiotopoulou Paraskevi, Verykios E. Xenophon , Basagiannis C. Aristides

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/3939F987-00DC-4CED-AD2F-C543B1451A38
Έτος 2011
Τύπος Σύντομη Δημοσίευση σε Συνέδριο
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά P. Panagiotopoulou, D.I. Kondarides, X.E. Verykios “Low temperature steam reforming of ethanol over supported noble metal catalysts,” in International Conference on Hydrogen Production (ICH2P-2011), pp. 2-12. doi:10.1007/s11244-008-9130-z https://doi.org/10.1007/s11244-008-9130-z
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Περίληψη

The catalytic activity of M/Al2O3 catalysts for the reaction of steam reforming of ethanol has been investigated in the temperature range of 300–450 °C. It has been found that the catalytic performance varies in the order of Pt > Pd > Rh > Ru, with Pt exhibiting high activity and selectivity toward hydrogen production, as well as long term stability at low temperatures. It is shown that the reaction occurs in a bifunctional manner, with the participation of both the dispersed metallic phase and the support. Ethanol interacts strongly with the Al2O3 carrier, promoting mainly ethanol dehydration, while in the presence of Pt, catalytic activity is shifted toward lower temperatures. Ethanol decomposition and dehydrogenation reactions dominate at low temperatures, while reforming, water-gas shift and methanation contribute significantly to product distribution.

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