Role of the Cu-ZrO2 interface in the hydrogenation of levulinic acid to γ-valerolactone

2021 ◽  
Vol 61 ◽  
pp. 446-458
Author(s):  
Ziyi Li ◽  
Haigang Hao ◽  
Jingjing Lu ◽  
Chengming Wu ◽  
Rui Gao ◽  
...  
Keyword(s):  
Levulinic Acid

Non-noble metal catalysts for transfer hydrogenation of levulinic acid: The role of surface morphology and acid-base pairs

2020 ◽  
Vol 18 ◽  
pp. 100501
Author(s):  
Jinyao Wang ◽  
Jiefeng Liu ◽  
Xiao Yu ◽  
Wenxiang Zhang ◽  
Guangyu Zhang ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Noble Metal ◽  
Levulinic Acid ◽  
Metal Catalysts ◽  
Transfer Hydrogenation ◽  
Acid Base ◽  
Base Pairs ◽  
Noble Metal Catalysts

scholarly journals Ru@hyperbranched Polymer for Hydrogenation of Levulinic Acid to Gamma-Valerolactone: The Role of the Catalyst Support

2022 ◽  
Vol 23 (2) ◽  
pp. 799
Author(s):  
Svetlana A. Sorokina ◽  
Stepan P. Mikhailov ◽  
Nina V. Kuchkina ◽  
Alexey V. Bykov ◽  
Alexander L. Vasiliev ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Catalyst Support ◽  
Physicochemical Characterization ◽  
Significant Loss ◽  
Catalyst Loading ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Low Catalyst Loading

Hydrogenation of levulinic acid (LA) obtained from cellulose biomass is a promising path for production of γ-valerolactone (GVL)—a component of biofuel. In this work, we developed Ru nanoparticle containing nanocomposites based on hyperbranched pyridylphenylene polymer, serving as multiligand and stabilizing matrix. The functionalization of the nanocomposite with sulfuric acid significantly enhances the activity of the catalyst in the selective hydrogenation of LA to GVL and allows the reaction to proceed under mild reaction conditions (100 °C, 2 MPa of H2) in water and low catalyst loading (0.016 mol.%) with a quantitative yield of GVL and selectivity up to 100%. The catalysts were successfully reused four times without a significant loss of activity. A comprehensive physicochemical characterization of the catalysts allowed us to assess structure-property relationships and to uncover an important role of the polymeric support in the efficient GVL synthesis.

scholarly journals Role of water in metal catalyst performance for ketone hydrogenation: a joint experimental and theoretical study on levulinic acid conversion into gamma-valerolactone

2014 ◽  
Vol 50 (83) ◽  
pp. 12450-12453 ◽  
Author(s):  
Carine Michel ◽  
Jérémie Zaffran ◽  
Agnieszka M. Ruppert ◽  
Joanna Matras-Michalska ◽  
Marcin Jędrzejczyk ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Theoretical Study ◽  
Hydrogenation Reaction ◽  
Ruthenium Catalyst ◽  
Metal Catalyst ◽  
Ketone Hydrogenation

Water is essential to attain good performance in a hydrogenation reaction with a ruthenium catalyst.

Self-condensation of levulinic acid into bio-jet fuel precursors over acid zeolites: elucidating the role of nature, strength and density of acid sites

2022 ◽  
pp. 118480
Author(s):  
Pablo Juárez ◽  
Clara López-Aguado ◽  
Marta Paniagua ◽  
Juan A. Melero ◽  
Rafael Mariscal ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Acid Sites ◽  
Jet Fuel ◽  
Acid Zeolites

Role of group V elements on the hydrogenation activity of Ni/TiO2 catalyst for the vapour phase conversion of levulinic acid to γ-valerolactone

2019 ◽  
Vol 325 ◽  
pp. 68-72 ◽  
Author(s):  
Ganga Bhavani Peddakasu ◽  
Vijay Kumar Velisoju ◽  
Manasa Kandula ◽  
Naresh Gutta ◽  
Komandur VR Chary ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Vapour Phase ◽  
Phase Conversion ◽  
Group V ◽  
Hydrogenation Activity ◽  
Tio2 Catalyst

Role of Brønsted and Lewis acid sites on Ni/TiO2 catalyst for vapour phase hydrogenation of levulinic acid: Kinetic and mechanistic study

2015 ◽  
Vol 505 ◽  
pp. 217-223 ◽  
Author(s):  
Velisoju Vijay Kumar ◽  
Gutta Naresh ◽  
Medak Sudhakar ◽  
James Tardio ◽  
Suresh K. Bhargava ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Levulinic Acid ◽  
Vapour Phase ◽  
Acid Sites ◽  
Mechanistic Study ◽  
Lewis Acid Sites ◽  
Tio2 Catalyst ◽  
Brønsted And Lewis Acid

Role of the cation on the liquid extraction of levulinic acid from water using NTf2-based ionic liquids: Experimental data and computational analysis

2020 ◽  
Vol 302 ◽  
pp. 112561
Author(s):  
Lorena Villar ◽  
Begoña González ◽  
Ismael Díaz ◽  
Ángeles Domínguez ◽  
Emilio J. González
Keyword(s):  
Experimental Data ◽  
Ionic Liquids ◽  
Levulinic Acid ◽  
Computational Analysis ◽  
Liquid Extraction

The Role of the Hydrogen Source on the Selective Production of γ-Valerolactone and 2-Methyltetrahydrofuran from Levulinic Acid

ChemSusChem ◽  
2016 ◽  
Vol 9 (17) ◽  
pp. 2488-2495 ◽  
Author(s):  
Iker Obregón ◽  
Inaki Gandarias ◽  
Mohammad G. Al-Shaal ◽  
Christian Mevissen ◽  
Pedro L. Arias ◽  
...  
Keyword(s):  
Levulinic Acid
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