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

Abstract : 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-Al 2 O 3 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.
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Submitted on : Tuesday, April 16, 2019 - 2:58:19 PM
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Caroline Urmès, Jean-Marc Schweitzer, Amandine Cabiac, Yves Schuurman. Kinetic Study of the Selective Hydrogenation of Acetylene over Supported Palladium under Tail-End Conditions. Catalysts, MDPI, 2019, 9 (2), pp.180. ⟨10.3390/catal9020180⟩. ⟨hal-02101127⟩

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