The role of rhenium in the conversion of glycerol to synthesis gas over carbon supported platinum–rhenium catalysts

Kunkes, Edward L.; Simonetti, Dante A.; Dumesic, James A.; Pyrz, William D.; Murillo, Luis E.; Chen, Jingguang G.; Buttrey, Douglas J.

doi:10.1016/j.jcat.2008.09.027

Cited by 175 publications

(152 citation statements)

References 32 publications

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“…The bimetallic catalysts were more active and more selective for hydrogen than their parent monometallic catalysts. This effect has been explained by a reduction of the adsorption enthalpy of hydrogen and CO on the metal surface, which promotes the desorption of these products and leaves more sites accessible for the reaction [77,79]. Indeed, Bligaard et al [80] calculated that Fe, Co, Ni and Ru have dissociative chemisorption energies for CO and H 2 O much lower than Pt (in vacuum).…”

Section: Bimetallic Catalystsmentioning

confidence: 99%

“…In addition, certain co-metals are also promoters of the WGS reaction: rhenium, ruthenium and cobalt are thus known to be highly active in the presence of water and CO [81]. This effect can be seen by the increase in the H 2 /CO ratio and the decrease in the CO/CO 2 ratio [79]. Lastly, certain co-metals such as rhenium can chemisorb hydroxyl groups formed from water and thus form alkoxides [33,82].…”

Section: Bimetallic Catalystsmentioning

confidence: 99%

“…Lastly, certain co-metals such as rhenium can chemisorb hydroxyl groups formed from water and thus form alkoxides [33,82]. These hydroxyl Effect of rhenium addition on Pt/C catalyst [79].…”

Section: Bimetallic Catalystsmentioning

confidence: 99%

See 2 more Smart Citations

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

Vilcocq

Cabiac

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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Section: Bimetallic Catalystsmentioning

confidence: 99%

Section: Bimetallic Catalystsmentioning

confidence: 99%

See 1 more Smart Citation

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

Vilcocq

Cabiac

Especel

et al. 2013

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

View full text Add to dashboard Cite

show abstract

“…From many catalytic systems used for glycerol steam reforming, those based on metals such as Ru [18,25,26], Rh [17,26], Ir [26][27][28], Pd [26,29,30], Pt [17,26,[31][32][33][34], and Co [27] can be mentioned. Different supports were also used including CeO 2 [25,27,35,36], Al 2 O 3 [24][25][26]37], MgO [35], TiO 2 [35] and ZrO 2 [36].…”

Section: Introductionmentioning

confidence: 99%

Glycerol steam reforming over calcium deficient hydroxyapatite supported nickel catalysts

Cichy

Dobosz

Borowiecki

et al. 2017

Reac Kinet Mech Cat

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This paper presents reports on the glycerol steam reforming reaction. The studies were performed over four nickel catalysts with different metal loading (up to 10 wt%) supported on calcium deficient hydroxyapatite (DHAp). The support was synthetized by the microwave assisted hydrothermal method. The steam reforming reaction was performed under atmospheric pressure in the 650-800°C temperature range using 10 mg of catalyst sample and a glycerol/water mixture with S/C = 3. All catalysts were well characterized by physicochemical methods (XRD, XRF, TPR, HRTEM). The catalytic tests results were presented by means of glycerol conversion, hydrogen and carbon containing gases selectivity. The most promising results were obtained for catalyst with moderate Ni content (*7.5 wt%), which proved to be stable during a few hours on-stream and provided glycerol conversion at least 94% at reaction temperature above 750°C.

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“…Dumesic and coworkers [8,24,[29][30][31][32][33][34] led and demonstrated feasibility of glycerol aqueous phase reforming (APR) as an alternative solution to sustainable hydrogen production in a series of studies. Main technological advantages of APR include low operating temperature (<270 • C) [24,29], and thus low production cost.…”

mentioning

confidence: 99%

Navigating Glycerol Conversion Roadmap and Heterogeneous Catalyst Selection Aided by Density Functional Theory: A Review

Liu

Gao

2018

Catalysts

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Glycerol has been utilized in an extremely diversified manner throughout human civilization-ranging from food, to various consumer products, to pharmaceuticals, and even explosives. Large surplus in glycerol supply thanks to biodiesel production and biomass processing has created a demand to further boost its utility. One growing area is to expand the use of glycerol as an alternative feedstock to supplement fuels and chemicals production. Various catalytic processes have been developed. This review summarizes catalytic materials for glycerol reforming, hydrodeoxygenation, and oxidation. In particular, rationale for catalyst selection and new catalyst design will be discussed aided by the knowledge of reaction mechanisms. The role of theoretical density functional theory (DFT) in elucidating complex glycerol conversion chemistries is particularly emphasized.

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The role of rhenium in the conversion of glycerol to synthesis gas over carbon supported platinum–rhenium catalysts

Cited by 175 publications

References 32 publications

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

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

Glycerol steam reforming over calcium deficient hydroxyapatite supported nickel catalysts

Navigating Glycerol Conversion Roadmap and Heterogeneous Catalyst Selection Aided by Density Functional Theory: A Review

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