Ruthenium Catalysts Supported on Hydrothermally Treated Carbon from Rice Husk: The Effect of Reduction Temperature on the Hydrogenation Reaction of Levulinic Acid to γ-Valerolactone

Virginia I. Rodríguez; Gustavo Mendow; Bárbara S. Sánchez; Juan Rafael García; Richard A. Pujro; Sergio R. de Miguel; Natalia S. Veizaga

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2023.36127

Published Article

LAPSE:2023.36127

Ruthenium Catalysts Supported on Hydrothermally Treated Carbon from Rice Husk: The Effect of Reduction Temperature on the Hydrogenation Reaction of Levulinic Acid to γ-Valerolactone

Virginia I. Rodríguez, Gustavo Mendow, Bárbara S. Sánchez, Juan Rafael García, Richard A. Pujro, Sergio R. de Miguel, Natalia S. Veizaga

June 13, 2023

Ru catalysts supported on activated carbon obtained by hydrothermal treatment of rice husk were evaluated in the hydrogenation reaction of levulinic acid to γ-valerolactone. The hydrothermally treated carbon was characterized by nitrogen physisorption, elemental analysis, and thermogravimetric analysis, and the catalysts were characterized by FTIR spectroscopy, X-ray photoelectron spectroscopy, temperature-programmed reduction, and temperature-programmed desorption of pyridine (acidic properties). Prior to the reaction, the catalysts were reduced at different temperatures in the range of 100−350 °C to evaluate the effect of the reduction temperature on the performance in the hydrogenation of levulinic acid. The reaction was carried out in a batch reactor at 70 °C and 1.5 MPa. The results of conversion and selectivity to γ-valerolactone showed that the catalyst with the best performance was the sample reduced at 200 °C. After 2 h of reaction, a γ-valerolactone yield of 74% was achieved. This catalyst presented the lowest acidity value, and the ruthenium-containing phase consisted mainly of RuO2, with a small portion of Ru0. The solid catalyst can be recovered and successfully reused for three runs with the GVL yield at 56%.

Record ID

LAPSE:2023.36127

Keywords

hydrothermally treated carbon, levulinic acid hydrogenation, rice husk, Ru catalyst, γ-valerolactone

Subject

Food & Agricultural Processes

Suggested Citation

Rodríguez VI, Mendow G, Sánchez BS, García JR, Pujro RA, de Miguel SR, Veizaga NS. Ruthenium Catalysts Supported on Hydrothermally Treated Carbon from Rice Husk: The Effect of Reduction Temperature on the Hydrogenation Reaction of Levulinic Acid to γ-Valerolactone. (2023). LAPSE:2023.36127

Author Affiliations

Rodríguez VI: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina [ORCID]
Mendow G: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina
Sánchez BS: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina
García JR: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina
Pujro RA: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina
de Miguel SR: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina
Veizaga NS: Instituto de Investigaciones en Catálisis y Petroquímica “Ing. José Miguel Parera” INCAPE (UNL−CONICET) Colectora Ruta Nac. Nº 168 Km 0—Paraje El Pozo, Santa Fe 3000, Argentina [ORCID]

Journal Name

Processes

Volume

11

Issue

5

First Page

1421

Year

2023

Publication Date

2023-05-08