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Sintering‐induced aromatization during n‐heptane reforming on Pt/Al~2~O~3~ catalysts by Alfred A Susu; Emmanuel O Ogogo is a Engineering article available to read on EtoBox.

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## Abstract A platinum/alumina catalyst was sintered in oxygen and hydrogen atmospheres using two metal loadings of the catalyst: 0.3% Pt and 0.6% Pt. After sintering, the aromatization selectivity was investigated with the reforming of n‐heptane as the model reaction at a temperature of 500 °C and a pressure of 391.8 kPa. The primary products of n‐heptane reforming on the fresh platinum catalysts were methane and toluene, with subsequent conversion of benzene from toluene demethylation. To induce sintering, the catalysts were treated with oxygen at a flow rate of 60 mL min^−1^, pressure of 195.9 kPa and temperatures between 500 and 800 °C. The 0.3% Pt/Al~2~O~3~ catalyst exhibited enhanced aromatization selectivity at various sintering temperatures while the 0.6% Pt/Al~2~O~3~ catalyst was inherently hydrogenolytic. The fact that aromatization was absent on the 0.6% Pt/Al~2~O~3~ catalyst was attributed to the presence of surface structures with dimensionality between two and three as opposed to essentially 2‐D structures on the 0.3% Pt/Al~2~O~3~ catalyst surface. On the 0.3% Pt/Al~2~O~3~ catalyst, the reaction product ranged from only toluene at a 500 °C sintering temperature to pre

Who reads Sintering‐induced aromatization during n‐heptane reforming on Pt/Al~2~O~3~ catalysts?

Author

Alfred A Susu; Emmanuel O Ogogo

Publisher

Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0268-2575)

Published

2006

Language

EN

Field

Engineering (Physical Sciences)