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Esterification of Levulinic Acid to Methyl Levulinate over Zr-MOFs Catalysts
(MDPI, 2022-03-25)
At present, the trend towards partial replacement of petroleum‐derived fuels by those from the revaluation of biomass has become of great importance. An effective strategy for pro-cessing complex biomass feedstocks involves ...
Acid functionalized coal fly ashes: New solid catalysts for levulinic acid esterification
(Elsevier Science, 2020-11)
Coal fly ash (CFA) from different sources (CFA 5, 10, 13) and different size fractions (> or < 75 μm) were characterized and used as inorganic supports for sulfonic acid functionalization by two methodologies including ...
An overview of the obtaining of biomass-derived gamma-valerolactone from levulinic acid or esters without H2 supply
(North Carolina State University. Department of Wood and Paper Science, 2021-08)
Gamma-valerolactone (GVL) is a highly reactive keto-lactone and a promising platform biomolecule, used as an additive for food and fuels, green solvent, and fuels precursor, among others. Its production from biomass usually ...
Strategy for biological co-production of levulinic acid and polyhydroxyalkanoates by using mixed microbial cultures fed with synthetic hemicellulose hydrolysate
(Elsevier, 2020-05)
Hemicellulose hydrolysates (HH), which could be an interesting carbon source to feed mixed microbial cultures (MMC) able to accumulate high value-added compounds. This research focused on the evaluation of a culture strategy ...
The challenge of converting biomass polysacharides into levulinic acid through heterogeneous catalytic processes
(John Wiley & Sons Ltd, 2020-03)
The differences between a biorefinery and an oil refinery are determined by the higher oxygen content of the biorefinery´s biomass, its high degree of functionalization, its low thermal stability, its polar components, ...
Synthesis, Characterization and Catalytic Activity of UiO-66-NH2 in the Esterification of Levulinic Acid
(MDPI, 2021-12)
The massive use of petroleum and its possible exhaustion are driving the current researchtrend to study alternative raw materials from biomass for organic reactions. In this context, thepresent article presents a study of ...
Biomass derivative valorization using nano core-shell magnetic materials based on keggin-heteropolyacids: Levulinic acid esterification kinetic study with n-butanol
(Hindawi Publishing Corporation, 2019-05-12)
Magnetic materials based on Keggin heteropolyacids immobilized on mesoporous silica-coated magnetite particles with a core-shell structure were synthesized. The activity of the catalyst was studied in the esterification ...