Artículo
Production of pentyl valerate from γ-valerolactone, pentanol and H2 using Pd and Rh-based bifunctional catalysts
Martínez Figueredo, Karla Geraldine
; Virgilio, Emanuel Martin
; Segobia, Dario Jobino
; Bertero, Nicolas Maximiliano
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
06/2022
Editorial:
Royal Society of Chemistry
Revista:
Reaction Chemistry and Engineering
e-ISSN:
2058-9883
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The production of pentyl valerate (PV) from γ-valerolactone (GVL) in the liquid phase in the presence of pentanol and H2 over Rh and Pd-based catalysts, using SiO2-Al2O3 (SA) as a support, was studied in this work. Both catalysts had metal loadings lower than 1 wt% and were prepared by incipient wetness impregnation using chlorinated metal precursors. The M0/SA catalysts exhibited a specific surface area and pore volume slightly lower than those of the SA support and the presence of metal nanoparticles with an average size of 5.6 nm for Rh/SA and 3.7 nm for Pd/SA. A total acid site density 10% lower than that of SA was determined for Rh/SA, whereas a value 45% higher was observed for Pd/SA. The relative strength of acid sites followed the pattern: Pd/SA > Rh/SA > SA with mainly Lewis acid sites in all the cases. Pd/SA showed a higher activity, selectivity to PV and carbon balance than Rh/SA. These results indicate that both a relatively high acid site density and smaller metal particles promote the conversion of adsorbed intermediates, reaching a GVL conversion of 81.1% and a PV yield of 70.1% over Pd/SA after 8 h. Therefore, PV productivity values 25% and 120% higher than the best reported value were reached over Rh/SA and Pd/SA, respectively, showing the potential of these catalysts to convert GVL into biofuels for transportation purposes. Finally, with Pd/SA, the apparent activation energy was equal to 25.6 kcal mol−1, the reaction order for H2 was about zero and a unitary reaction order for GVL was determined.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
Martínez Figueredo, Karla Geraldine; Virgilio, Emanuel Martin; Segobia, Dario Jobino; Bertero, Nicolas Maximiliano; Production of pentyl valerate from γ-valerolactone, pentanol and H2 using Pd and Rh-based bifunctional catalysts; Royal Society of Chemistry; Reaction Chemistry and Engineering; 7; 9; 6-2022; 1997-2008
Compartir
Altmétricas