Carbon dioxide emission can be reduced using renewable resources such as plant biomass as a carbon-neutral feedstock for commodity chemicals [1]. Levulinic acid (LA) is a useful C5 resource from lignocellulose. Its catalytic transformations into highly valuable chemicals such as γ-valerolactone (GVL) is quite easily obtained; however, there are few catalytic systems for its further transformation to pentanediols, even when drastic reaction conditions are used [2]. Mo and Pt already showed promising results in this reaction [3]. This work wants to investigate the role of the Mo precursor (Na2MoO4 or (NH4)6Mo7O24) and the influence of thermal treatments of Pt-Mo catalytic systems for LA hydrogenation to pentanediols. Na2PtCl4 have been impregnated on fresh or calcined (in N2) Mo/C previously prepared by wet impregnation. Pt was then reduced by NaBH4. LA hydrogenation was carried out at 150 °C and 20 bar H2 in autoclave (Parr Instrument). XPS analyses, TEM spectroscopy and acidity characterization allowed to correlate the catalytic results with specific morphological properties of the materials.

Catalytic systems for the selective transformation of levulinic acid to pentanediols / M. Stucchi, M. Manzoli, F. Bossola, A. Villa, L. Prati. ((Intervento presentato al convegno Merck & Elsevier Young Chemist Symposium tenutosi a Rimini nel 2019.

Catalytic systems for the selective transformation of levulinic acid to pentanediols

M. Stucchi;A. Villa;L. Prati
2019-11

Abstract

Carbon dioxide emission can be reduced using renewable resources such as plant biomass as a carbon-neutral feedstock for commodity chemicals [1]. Levulinic acid (LA) is a useful C5 resource from lignocellulose. Its catalytic transformations into highly valuable chemicals such as γ-valerolactone (GVL) is quite easily obtained; however, there are few catalytic systems for its further transformation to pentanediols, even when drastic reaction conditions are used [2]. Mo and Pt already showed promising results in this reaction [3]. This work wants to investigate the role of the Mo precursor (Na2MoO4 or (NH4)6Mo7O24) and the influence of thermal treatments of Pt-Mo catalytic systems for LA hydrogenation to pentanediols. Na2PtCl4 have been impregnated on fresh or calcined (in N2) Mo/C previously prepared by wet impregnation. Pt was then reduced by NaBH4. LA hydrogenation was carried out at 150 °C and 20 bar H2 in autoclave (Parr Instrument). XPS analyses, TEM spectroscopy and acidity characterization allowed to correlate the catalytic results with specific morphological properties of the materials.
Settore CHIM/03 - Chimica Generale e Inorganica
Catalytic systems for the selective transformation of levulinic acid to pentanediols / M. Stucchi, M. Manzoli, F. Bossola, A. Villa, L. Prati. ((Intervento presentato al convegno Merck & Elsevier Young Chemist Symposium tenutosi a Rimini nel 2019.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/720806
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