Catalytic properties of the framework-structured zirconium-containing phosphates in ethanol conversion

Mayorov, Pavel; Asabina, E. A.; Zhukova, Anna I.; Osaulenko, Diana; Петьков, В. И.; Lavrenov, D. A.; Kovalskii, Andrey M.; Fionov, A. V.

doi:10.1007/s11164-021-04488-6

Cited by 5 publications

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“…The activity of several acid catalysts for ethanol conversion was described in our previous studies [28–30] . The present study focuses on the surface properties of (Zr+Ce)O 2 ‐Al 2 O 3 catalysts with different mol.…”

Section: Introductionmentioning

confidence: 96%

“…The activity of several acid catalysts for ethanol conversion was described in our previous studies. [28][29][30] The present study focuses on the surface properties of (Zr + Ce)O 2 -Al 2 O 3 catalysts with different mol. ratios (5,10,20,50, and 75 % alumina), and their influence on the selectivity for diethyl ether (DEE), ethylene (E), or acetaldehyde (AcH) production in ethanol test reaction.…”

Section: Introductionmentioning

confidence: 99%

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Selectivity of Ethanol Conversion on Al/Zr/Ce Mixed Oxides: Dehydration and Dehydrogenation Pathways Based on Surface Acidity Properties

et al. 2022

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Zirconia-alumina mixed oxides (Zr + Ce)O 2 À Al 2 O 3 with various mol. ratios (5, 10, 20, 50, and 75 % alumina) were prepared using the sol-gel method. The catalysts were characterised via XRD, SEM, DTA/TG, BET, and FT-IR spectroscopy. The acidities of the catalysts were measured through the absorption of anthraquinone and pyridine probe molecules using EPR and IR spectroscopy, respectively. Catalytic activity and selectivity were investigated for ethanol conversion to acetaldehyde, ethylene, and diethyl ether, which were used as model reactions to identify surface-active sites. The relationship between the surface structure and the dehydration/dehydrogenation activity was evaluated. Diethyl ether formation is promoted by the presence of the ZrO 2 tetragonal phase at a low ZrO 2 /Al 2 O 3 ratio in the sample composition, at which the Lewis acid site has an aluminum-oxygen environment. The reaction mechanism was also discussed. In the low-temperature reaction region, dehydrogenation competes with dehydration; ethylene and acetaldehyde share a common reactive intermediate.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Selectivity of Ethanol Conversion on Al/Zr/Ce Mixed Oxides: Dehydration and Dehydrogenation Pathways Based on Surface Acidity Properties

et al. 2022

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“…In recent years, as researchers furthered the understanding of the catalyst activity center, the yield value of the C4 olefin reaction from ethanol has been significantly improved. ( Dahan et al, 2021 ; Eagan et al, 2019 ; Katoh et al, 2008 ; Leon et al, 2011 ; Mayorov et al, 2021 ; Smith et al, 2016 ). Nevertheless, some problems remain and must be solved to realize the industrial application of ethanol for producing C4 olefins ( Camacho et al, 2020 ; Jones, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Process schemes of ethanol coupling to C4 olefins based on a genetic algorithm for back propagation neural network optimization

Zhao

Jin

et al. 2022

Heliyon

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A novel and environmentally friendly NASICON-type material: Efficient catalyst for condensation of formaldehyde and acetic acid to acrylic acid and methyl acrylate

Zheng

Gao

et al. 2022

Chemical Engineering Journal

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Catalytic properties of the framework-structured zirconium-containing phosphates in ethanol conversion

Cited by 5 publications

References 30 publications

Selectivity of Ethanol Conversion on Al/Zr/Ce Mixed Oxides: Dehydration and Dehydrogenation Pathways Based on Surface Acidity Properties

Selectivity of Ethanol Conversion on Al/Zr/Ce Mixed Oxides: Dehydration and Dehydrogenation Pathways Based on Surface Acidity Properties

Process schemes of ethanol coupling to C4 olefins based on a genetic algorithm for back propagation neural network optimization

A novel and environmentally friendly NASICON-type material: Efficient catalyst for condensation of formaldehyde and acetic acid to acrylic acid and methyl acrylate

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