Development of a Ru/C catalyst for glycerol hydrogenolysis in combination with an ion-exchange resin

Miyazawa, Tomohisa; Koso, Shuichi; Kunimori, Kimio; Tomishige, Keiichi

doi:10.1016/j.apcata.2006.11.006

Cited by 225 publications

(177 citation statements)

References 23 publications

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“…3 In particular, 1,3-PD is of great value in the fabrication of polytrimethylene terephthalate (PTT), 4,5 a kind of ber with promising chemical resistance, light stability, elastic recovery and dyeability. However, for steric reasons, the primary hydroxyl group is cleaved more readily and most reports favored the formation of 1,2-PD, 3,[6][7][8] except for the case employing catalysts comprised of tungsten oxides [9][10][11][12][13] or Ir-Re catalysts. 14 In previous studies, tungsten species, bearing an unsaturated d-orbital, typically combined with oxygen to form tungsten oxide with highly acidic nature, played specic and signicant roles in the selective conversion of biomass.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Ti–W oxide: synthesis, characterization, and performance in selective hydrogenolysis of glycerol

et al. 2013

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Mesoporous Ti-W oxides, bearing high surface area, large pore volume, uniform pore size and tunable W/Ti ratios in a wide range (10-40 mol%), were successfully fabricated via an evaporation-induced selfassembly (EISA) strategy. In this approach, the incorporation of W species not only effectively resulted in well-ordered mesoporous structures when calcined below 400 C but also modified the acidic properties of the obtained oxide composites. The optimal acid amounts (0.47-0.67 mmol g À1 for 400 C calcinations, 0.25-0.27 mmol g À1 for 500 C calcinations) were obtained when the W concentration was between 10 and 20 mol%. When calcined at 500 C, Brønsted acids were generated in Ti 90 W 10 -500 and Ti 80 W 20 -500. The catalytic performance of these mesoporous solid acids in glycerol hydrogenolysis was studied with a loading of 2 wt% Pt. Pt/Ti 100Àn W n -500s exhibited high selectivity to 1,3-propanediol (33.5% and 40.3%) and promising catalytic activities (18.4% and 24.2% glycerol conversion) when n is 10 and 20, respectively. This work presents a step forward in the development of highly efficient glycerol hydrogenolysis catalysts and a new understanding of the reaction mechanism of glycerol hydrogenolysis to 1,3-propanediol.

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Section: Introductionmentioning

confidence: 99%

Mesoporous Ti–W oxide: synthesis, characterization, and performance in selective hydrogenolysis of glycerol

et al. 2013

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“…It has been observed that, for a Ru/C catalyst + acid resin (Amberlyst), the increase in hydrogen pressure leads to an increase in the rate of C-O bond cleavage [35], which contradicts the hypothesis of a reversible initial dehydrogenation step. This is why, in most studies of bifunctional precious metal/acid solid catalytic systems, the C-O cleavage mechanism proposed consists of a dehydration step by an E1 mechanism followed by hydrogenation without an initial dehydrogenation step (Fig.…”

Section: Dehydrogenation-dehydration-hydrogenation Of An Alcohol Groupmentioning

confidence: 58%

“…For this purpose, carbon supports such as activated carbon, carbon nanofibers or carbon nanotubes are considered to be good candidates [35,39,[62][63][64]. Titanium oxide and silica are also highly valued [18,54,65].…”

Section: Other Supportsmentioning

confidence: 99%

Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial Considerations

Vilcocq

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Especel

et al. 2013

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Transformation du sorbitol en biocarburants par catalyse hétérogène : considérations chimiques et industrielles -La raréfaction du pétrole et l'augmentation conjointe de la demande en carburants ont conduit à la recherche de carburants alternatifs. Dans un premier temps, la valorisation de ressources agricoles alimentaires pour la production d'éthanol et de biodiesel a permis de développer les biocarburants de première génération. Aujourd'hui les travaux de recherche s'orientent vers l'utilisation de biomasse lignocellulosique comme source de carbone renouvelable (biocarburants de deuxième génération). Alors que la filière de l'éthanol cellulosique est en plein développement, une nouvelle voie consistant à transformer des sucres et polyols d'origine lignocellulosique en alcanes légers par catalyse hétérogène bifonctionnelle en phase aqueuse a été récemment décrite. Ce procédé s'effectue à basse température et pression modérée (T < 300 °C et P < 50 bar). Il nécessite, d'une part, la formation d'hydrogène par reformage catalytique de carbohydrates en phase aqueuse et, d'autre part, la déshydratation/hydrogénation de polyols conduisant à un alcane par ruptures sélectives des liaisons C-O. Un défi lié à cette thématique réside dans le développement de systèmes catalytiques multifonctionnels stables, actifs et sélectifs dans les conditions de la réaction de transformation. L'objectif de l'article est de présenter les réactions mises en jeu, les systèmes catalytiques décrits dans la littérature pour ce type de transformation ainsi que des exemples d'applications industrielles. Abstract

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“…The conversion to gaseous products was negligible at 200 • C. For both catalysts, the main products at 200 • C are 1,2-PG and EG, reaching 76% and 20%, respectively, on the Ru/SC sample. Most 1,2-PG selectivity can be explained due to a greater contribution of C-O cleavage reactions versus Catalysts 2017, 7, 6 8 of 13 C-C cleavage reactions that produce EG [7,31,32]. The selectivity to other products, such as methanol, ethanol, 1-propanol, and acetol is low (about 4%).…”

Section: Catalytic Activity: Glycerol Hydrogenolysis To Glycolsmentioning

confidence: 99%

“…The histogram of particle size distribution shows that the average particle diameter (d TEM ) for the Ru/SC fresh sample is 2.3 nm ( Figure 6A). reactions versus C-C cleavage reactions that produce EG [7,31,32]. The selectivity to other products, such as methanol, ethanol, 1-propanol, and acetol is low (about 4%).…”

Section: Catalytic Activity: Glycerol Hydrogenolysis To Glycolsmentioning

confidence: 99%

Hydrothermal Stability of Ru/SiO2–C: A Promising Catalyst for Biomass Processing through Liquid-Phase Reactions

et al. 2016

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Abstract:In this work, structural and morphological properties of SiO 2 -C composite material to be used as support for catalysts in the conversion of biomass-derived oxygenated hydrocarbons, such as glycerol, were investigated in liquid water under various temperatures conditions. The results show that this material does not lose surface area, and the hot liquid water does not generate changes in the structure. Neither change in relative concentrations of oxygen functional groups nor in Si/C ratio due to hydrothermal treatment was revealed by X-ray photoelectron spectroscopy (XPS) analysis. Raman analysis showed that the material is made of a disordered graphitic structure in an amorphous silica matrix, which remains stable after hydrothermal treatment. Results of the hydrogenolysis of glycerol using a Ru/SiO 2 -C catalyst indicate that the support gives more stability to the active phase than a Ru/SiO 2 consisting of commercial silica.

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Development of a Ru/C catalyst for glycerol hydrogenolysis in combination with an ion-exchange resin

Cited by 225 publications

References 23 publications

Mesoporous Ti–W oxide: synthesis, characterization, and performance in selective hydrogenolysis of glycerol

Mesoporous Ti–W oxide: synthesis, characterization, and performance in selective hydrogenolysis of glycerol

Transformation of Sorbitol to Biofuels by Heterogeneous Catalysis: Chemical and Industrial Considerations

Hydrothermal Stability of Ru/SiO2–C: A Promising Catalyst for Biomass Processing through Liquid-Phase Reactions

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