Studies on the Reactions of Lactone Intermediates Derived from Levulinic Acid: Telescoped Routes to Higher Levulinate Ester Biofuels

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

The development of efficient strategies for the synthesis levulinate esters is significant current interest due to their potential as biofuels and fuel additives. Herein, we report a novel strategy access derived from higher alcohols directly levulinic acid through in situ generation lactone intermediates employing commercial heterogeneous catalysts, such Amberlyst-15. This employs telescoped approach which lactonization/ring-opening reactions are combined into an operationally simple one-pot procedure. advantageous it readily available inexpensive catalyst proceeds short reaction times produce excellent yields with high selectivity. Furthermore, Amberlyst-15 fully recyclable can be reused without loss activity or

Language: Английский

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Pore structure design and mass transfer optimization of resin catalysts based on lattice Boltzmann method for n-butyl levulinate synthesis

Chemical Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 121788 - 121788

Published: May 1, 2025

Language: Английский

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Recent developments on ethyl levulinate as a promising bio-based transportation fuel

Biomass and Bioenergy, Journal Year: 2025, Volume and Issue: 200, P. 107964 - 107964

Published: May 15, 2025

Language: Английский

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From biomass-derived fructose to γ-valerolactone: Process design and techno-economic assessment

Bioresource Technology, Journal Year: 2024, Volume and Issue: 401, P. 130753 - 130753

Published: April 28, 2024

Language: Английский

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Kinetic modelling: Regression and validation stages, a compulsory tandem for kinetic model assessment

The Canadian Journal of Chemical Engineering, Journal Year: 2023, Volume and Issue: 101(12), P. 7078 - 7101

Published: May 17, 2023

Abstract The development of robust and reliable kinetic models is vital to build safe, eco‐friendly, cost‐competitive chemical processes. Establishing for complex systems such as biomass valorization cumbersome because the modeller must test different fit several experimental observables (or concentrations). Usually, in reaction engineering, model assessment based solely on regression stage outputs. implementation a validation can aid choosing most models, essentially case systems. We studied solvolysis 5‐hydroxymethylfurfural (5‐HMF) butyl levulinate (BL) constituting consecutive parallel steps. From an existing model, we created 60 synthetic runs batch conditions. In first part, tested four with 5 degrees noise, carried out modelling runs. second two types holdout methods were evaluated. last cross‐validation, namely k‐fold method, was used. found that 10‐fold method allowed more efficient selection results even when noise level high. Besides, allows not scarifying selecting model.

Language: Английский

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Starch valorization: Direct conversion of starch to hexyl levulinate over SO4/ZrO2-KIT5 composite

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 262, P. 130093 - 130093

Published: Feb. 15, 2024

Language: Английский

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Synthesis of carrageenan/DFNS composite and its application in the esterification of levulinic acid and alcohols

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 169, P. 113054 - 113054

Published: Aug. 28, 2024

Language: Английский

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The Chemistry of Levulinic Acid: Its Potential in the Production of Biomass‐based Chemicals

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Abstract Biomass has been identified as the ultimate sustainable resource for all carbon‐based consumer products of chemical industries in future. Its catalytic conversion leads to formation various platform chemicals that could partially or even fully replace fossil‐based building blocks have currently used synthetic processes. Among these compounds, levulinic acid (LA) recognized a member “Top Value Added Chemicals from Biomass” and attracted significant attention since seminal paper reported by Werpy Petersen 2004. This review summarizes properties, recent advances, developments chemistry acid. The production LA both plant animal‐based carbohydrate feedstocks via 5‐hydroxymethylfurfural furfuryl alcohol is discussed mechanistic perspective, highlighting intrinsic molecular‐level limitations formation. efficiencies recently developed systems are also summarized compared. Furthermore, into high‐value‐added downstream chemicals, including its role synthesis complex molecular structures, overviewed. section reactions points view transformations on carbonyl‐, carboxy‐, methyl‐, methylene functional groups. functionalities with C −, N O S ‐nucleophiles, alcohols, amines, organometallic reagents, oxygen etc. were thematically summarized. Our outlooks highlight challenges opportunities associated extensive research area organic

Language: Английский

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One pot cascade conversion of furfural to alkyl levulinate over Lu(OTf)3 without external H2

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 547, P. 113315 - 113315

Published: June 16, 2023

Language: Английский

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Predicting the physical properties of three-component lignocellulose derived advanced biofuel blends using a design of experiments approach

Sustainable Energy & Fuels, Journal Year: 2023, Volume and Issue: 7(21), P. 5283 - 5300

Published: Jan. 1, 2023

Predictive models of selected physical properties advanced biofuel blends produced using a design experiments methodology. C4/C5 alcohol-based superior to C2 ones as diesel replacements since they better match property limits.

Language: Английский

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