Influence of potassium on the properties of steam reforming catalysts

Author: Gołębiowski Andrzej   Stołecki Kazimierz   Prokop Urszula   Kuśmierowska Alicja   Borowiecki Tadeusz   Denis Andrzej   Sikorska Czesława  

Publisher: Springer Publishing Company

ISSN: 0133-1736

Source: Reaction Kinetics and Catalysis Letters, Vol.82, Iss.1, 2004-05, pp. : 179-189

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Abstract

The influence of K2O on the amounts of chemisorbed hydrogen on a Ni catalyst, the catalyst activity and its resistance to coking were measured. Introducing potassium into the commercial catalyst (not into the support) appeared to enhance its resistance to coking. The best catalytic characteristics was noticed for a system containing ~0.5 wt. % K2O. The investigations show a good agreement between the resistance to coking obtained by the temperature-programmed reaction (TPReaction) method and by the traditional thermogravimetric method.

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