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Kinetic Study of the Selective Hydrogenation of Acetylene over Supported Palladium under Tail-End Conditions

IRCELYON CNRS, UMR 5256, Univ Lyon, Université Claude Bernard Lyon 1, 2 avenue Albert Einstein, 69626 Villeurbanne Cedex, France
IFP Energies nouvelles, Etablissement de Lyon, Rond-point de l’échangeur de Solaize, BP3, 69360 Solaize, France
Author to whom correspondence should be addressed.
Catalysts 2019, 9(2), 180;
Received: 9 January 2019 / Revised: 30 January 2019 / Accepted: 31 January 2019 / Published: 14 February 2019
PDF [2155 KB, uploaded 14 February 2019]


The kinetics of the selective hydrogenation of acetylene in the presence of an excess of ethylene has been studied over a 0.05 wt. % Pd/α-Al2O3 catalyst. The experimental reaction conditions were chosen to operate under intrinsic kinetic conditions, free from heat and mass transfer limitations. The data could be described adequately by a Langmuir–Hinshelwood rate-equation based on a series of sequential hydrogen additions according to the Horiuti–Polanyi mechanism. The mechanism involves a single active site on which both the conversion of acetylene and ethylene take place. View Full-Text
Keywords: power-law; Langmuir–Hinshelwood; kinetic modeling; Pd/α-Al2O3 power-law; Langmuir–Hinshelwood; kinetic modeling; Pd/α-Al2O3

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Urmès, C.; Schweitzer, J.-M.; Cabiac, A.; Schuurman, Y. Kinetic Study of the Selective Hydrogenation of Acetylene over Supported Palladium under Tail-End Conditions. Catalysts 2019, 9, 180.

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