LAPSE:2023.36127v1
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LAPSE:2023.36127v1
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
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
Keywords
hydrothermally treated carbon, levulinic acid hydrogenation, rice husk, Ru catalyst, γ-valerolactone
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:2023.36127v1
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]
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
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr11051421, Publication Type: Journal Article
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LAPSE:2023.36127v1
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doi:10.3390/pr11051421
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[v1] (Original Submission)
Jun 13, 2023
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Jun 13, 2023
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v1
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https://psecommunity.org/LAPSE:2023.36127v1
Original Submitter
Calvin Tsay
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