Process Options for the Catalytic Conversion of Renewables into Bioproducts

Gallezot, P.

doi:10.1002/9783527621118.ch3

Cited by 7 publications

(4 citation statements)

References 73 publications

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“…It has several advantages in comparison with fossil raw materials: renewable, widely available and better distributed throughout the world. Indeed, the lignocellulosic material can be used to obtain desired molecules for a certain applications, which are consistent with the principles of green chemistry [6]. However, the development of effective processes to *Manuscript (incl.…”

Section: Introductionmentioning

confidence: 72%

“…LCB usage will help to protect the environment and to reduce the dependence on fossil fuels, which is important for sustainable development of economics as well as for creation of new workplaces at the regional level and development of rural areas [1]. There is now a commitment from the chemical industry to develop new green chemistry-based processes [2][3][4][5][6], and LCB is called to play a major role as an alternative raw material. It has several advantages in comparison with fossil raw materials: renewable, widely available and better distributed throughout the world.…”

Section: Introductionmentioning

confidence: 99%

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Guaiacol and its mixtures: New data and predictive models. Part 2: Gibbs energy of solvation

Varfolomeev

Nagrimanov

Stolov

et al. 2018

Fluid Phase Equilibria

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Guaiacol is a model molecule for lignocellulosic biomass processing, and thus understanding its interactions with solvents is an important step when developing units for processing lignocellulosic biomass. In this work, activity coefficient measurements of different solvents (acetonitrile, ethanol, tetrahydrofuran) in guaiacol have been performed at different concentrations and temperatures. These measurements have been used to estimate the infinite dilution activity coefficients and the Gibbs energy of solvation of guaiacol in the different solvents, and of each solvent in guaiacol. These estimated values were compared to those obtained with different predictive models: UNIFAC DMD, Monte Carlo Molecular Simulation, COSMO-SAC and GC-PPC-SAFT. The predictions are in very good agreement with the Gibbs energies of solvation derived from experimental data. Some conclusions are also drawn regarding the inter and intramolecular hydrogen bonding in guaiacol and about its affinity with different solvents on the basis of the inter and intra molecular interactions taking place.

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Section: Introductionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Guaiacol and its mixtures: New data and predictive models. Part 2: Gibbs energy of solvation

Varfolomeev

Nagrimanov

Stolov

et al. 2018

Fluid Phase Equilibria

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“…Chemical and petrochemical industries are now aiming at developing new green chemistry-based processes [2], [3], and lignocellulosic biomass (LCB) is called to play a major role as an alternative raw material. Indeed, the lignocellulosic material may be conditioned to obtain already "functionalised" molecules for specific applications, unlike hydrocarbons that require additional processing steps for the synthesis of specific chemicals.…”

Section: Introductionmentioning

confidence: 99%

Guaiacol and its mixtures: New data and predictive models part 1: Phase equilibrium

Pereira

Féjean

Betoulle

et al. 2018

Fluid Phase Equilibria

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In the present work, new experimental data of guaiacol mixture with methane were investigated. The results have been evaluated using several thermodynamic approaches. Predictive calculations using the GC-PPC-SAFT (Group Contribution-Polar Perturbed Chain-Statistical Associating Fluid Theory) equation of state and Molecular Simulation using the AUA4 force field were performed. Data from literature for the binary systems of guaiacol with CO 2 , ethanol, octanol, acetone, butyl acetate and water were used to evaluate the thermodynamic models. The effect of the association scheme is discussed at length. Predictive phase equilibrium for systems containing small toxic compounds, such as hydrogen, carbon monoxide, hydrogen sulfide and ammonia were also performed. In GC-PPC-SAFT, two configurations of associative sites for guaiacol were considered. The predicted values showed to be consistent with new experimental data. The effect of conformational structure of guaiacol on phase equilibria was detected.

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“…Besides, among the various chemicals that can be obtained from glycerol, some of them, which are interesting for PUs preparation, can be listed: the 1,3-propanediol and the glycerol carbonate (Gallezot, 2007b;Melero et al, 2009). In terms of added value provided, glycerol and glycerol carbonate take part of the top 30 chemicals for the chemical industry (Werpy and Peterson, 2004).…”

Section: Reactive Sites and Common Derivatives From Vegetable Oilsmentioning

confidence: 99%

Vegetable oils: a source of polyols for polyurethane materials

Maisonneuve

Chollet

Grau

et al. 2016

OCL

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-This manuscript is dedicated to the literature on vegetable oil-based polyurethanes via the isocyanate/alcohol route. A lot of efforts have been made to replace petroleum-based resources. Among renewable resources, vegetable oils present various advantages going from their availability to the large range of possible chemical modifications they permit. Firstly, the vegetable oil chemical composition and the main commercially available vegetable oil precursors are exposed. Concerning vegetable oils-based polyurethanes, research groups first focused on cross-linked systems directly from triglycerides then on thermoplastic ones from fatty acids or fatty acid methyl esters. This manuscript focuses on thermoplastic PUs and underlines the literature about the introduction of hydroxyl groups and isocyanate functions onto triglycerides and fatty acid derivatives. Besides, in a view to the isocyanate/alcohol approach, vegetable oil-based thermoplastic PUs and corresponding diols and diisocyanates are described in details.Keywords: Polyurethanes / bio-based / vegetable oils / fatty acid / diol / di-isocyanate Résumé -Huiles végétales : une source de polyols pour les matériaux en polyuréthane. Cet article fait un état de l'art de la synthèse de polyuréthanes issus des huiles végétales par la voie alcool/isocyanate. De nombreux efforts ont été réalisés pour remplacer les ressources pétrolières. Parmi les ressources renouvelables, les huiles végétales représentent de nombreux avantages liés à leur disponibilité et aux nombreuses possibilités de modification chimique qu'elles offrent. Dans cet article, les principales huiles, leur composition, et les principaux précurseurs commercialisés issus des huiles végétales sont d'abord présentés. Concernant les PUs issus des huiles végétales, les travaux portent d'une part sur des réseaux tridimensionnels directement à partir des triglycérides et, d'autre part, sur des PUs thermoplastiques à partir des acides gras et de leurs dérivés. Les méthodes d'introduction de fonctions alcool et isocyanate sur les triglycérides et acides gras sont présentées puis la synthèse de PUs thermoplastiques par la voie alcool/isocyanate est discutée de façon détaillée. Mots clés :Polyuréthanes / bio-sourcé / huiles végétales / acide gras / diol / di-isocyanate.

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Process Options for the Catalytic Conversion of Renewables into Bioproducts

Cited by 7 publications

References 73 publications

Guaiacol and its mixtures: New data and predictive models. Part 2: Gibbs energy of solvation

Guaiacol and its mixtures: New data and predictive models. Part 2: Gibbs energy of solvation

Guaiacol and its mixtures: New data and predictive models part 1: Phase equilibrium

Vegetable oils: a source of polyols for polyurethane materials

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