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Article Dans Une Revue Catalysis Communications Année : 2014

Polyol hydrogenolysis on supported Pt catalysts: Comparison between glycerol and 1,2-propanediol

Résumé

Pt-based catalysts supported on TiO2 and SIRAL 20 (Al2O3-20 wt.%SiO2) were prepared and characterized by H-2 chemisorption, FTIR of adsorbed pyridine and 3,3-dimethyl-1-butene isomerization. The catalysts were evaluated for the transformation under aqueous phase of glycerol and 1,2-propanediol at 210 degrees C, under 60 bar as total pressure (H-2 atmosphere). Under similar conditions, 1,2-propanediol is easier converted than glycerol, indicating that in the glycerol transformation process in aqueous phase, the 1,2-propanediol reactivity is inhibited by the presence of glycerol. This behavior is explained by a strong adsorption of glycerol compared to 1,2-propanediol on the catalyst surface

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Catalyse
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Dates et versions

hal-01193126 , version 1 (04-09-2015)

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Severine Delgado, Laurence Vivier, Catherine Especel. Polyol hydrogenolysis on supported Pt catalysts: Comparison between glycerol and 1,2-propanediol. Catalysis Communications, 2014, 43, pp.107-111. ⟨10.1016/j.catcom.2013.09.021⟩. ⟨hal-01193126⟩
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