Recent Developments in the Field of Catalytic Dehydration of Glycerol to Acrolein

Katryniok, Benjamin; Paul, Sébastien; Dumeignil, Franck

doi:10.1021/cs400354p

Cited by 269 publications

(258 citation statements)

References 78 publications

(144 reference statements)

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“…Finally, methane (CH 4 ) is formed by deep hydrogenolysis. The dehydration of glycerol to hydroxyacetone is catalyzed by acid sites and this reaction occurs via protonation of the terminal hydroxyl group with consecutive elimination of water molecule and formation of an enol intermediate [8,9].…”

Section: Introductionmentioning

confidence: 99%

Influence of copper on nickel-based catalysts in the conversion of glycerol

Miranda

Chimentão

Szanyi

et al. 2015

Applied Catalysis B: Environmental

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The catalytic transformation of glycerol to value-added compounds was investigated over bimetallic Ni-Cu/y-Al2 O3 catalysts with Ni/Cu atomic ratios of 8/1, 4/1, 2/1, 1/1, 1/2, 1/4, and 1/8. XPS analysis revealed that the surface composition of the catalyst exhibited progressive enrichment of Cu as its content in the catalyst increased. H2 -chemisorption indicated that the total number of exposed Ni atoms decreased as the Cu content increased. As a result, deep hydrogenolysis to produce CH4 was inhibited by the addition of Cu to the Ni catalyst, yielding higher selectivity toward the dehydration products of glycerol such as hydroxyacetone.FTIR spectra of adsorbed CO reveal that Cu asserts both geometric and electronic effects on the adsorption properties of Ni. The geometrical effect is visualized by the progressive disappearance of the bridge-bound adsorbed CO on metallic Ni by the incorporation of Cu. This suggests that the deep hydrogenolysis of glycerol to CH4 formation requires an ensemble of adjacent active Ni atoms. The electronic effect of Cu on Ni is indicated by the red shift of the IR peak of adsorbed CO as the Cu content increases. The electronic interaction between Cu and Ni species was also substantiated by XANES results. HTREM revealed metal particles very well distributed on the support with particle size of 1.5 to 5 nm. The Ni-Cu samples were not a total intermetallic alloys..

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Section: Introductionmentioning

confidence: 99%

Influence of copper on nickel-based catalysts in the conversion of glycerol

Miranda

Chimentão

Szanyi

et al. 2015

Applied Catalysis B: Environmental

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“…A number of recent overviews on glycerol conversion are available in the literature. For further information, readers are kindly referred to key recently reported overviews in the field [6][7][8][9][10].…”

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confidence: 99%

Continuous flow transformations of glycerol to valuable products: an overview

Len

Luque

2014

Sustain Chem Process

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Glycerol conversion to valuable products has been a research avenue that attracted a significant interest in recent years due to its large available volumes (as by-product of biodiesel production) and the different possibilities for chemical and biological conversion into high added value chemicals profiting from the unique presence of three hydroxyl groups in its structure. The utilization of continuous flow processes in combination with transformation of platform chemicals (e.g. glycerol) can offer several advantages to batch processes in view of their potential implementation in industry. This minireview has been aimed to highlight most recent key continuous flow systems for glycerol valorization to valuable products using different types of catalysts and processes.

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“…Several recent reviews on this topic have been published. 26,77,78 Various catalysts are known for converting acrolein to acrylic acid. Here, we focus on the popular Mo-V-O and Mo-V-M-O (M = W, Cu, Nb, Te) type materials.…”

Section: ð12þmentioning

confidence: 99%