Cerium-containing catalysts for converting ethanol into ethylene

Досумов, К.; Ергазиева, Г. Е.; Churina, Dina; Тельбаева, М. М.

doi:10.1134/s0036024414100094

Cited by 11 publications

(13 citation statements)

References 2 publications

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“…Testing of the activity of the synthesized catalysts in the reaction of non‐oxidative dehydrogenation of ethanol was carried out on a flow‐through laboratory setup with a quartz reactor (length 36 cm, inner diameter 1.7 cm) 15. Process conditions: pressure P = 0.1 MPa, reaction temperature T r = 200–400 °C, ethanol volumetric flow rate weight hourly space velocity (WHSV) = 0.5 h −1 ; experiments were carried out without an inert gas.…”

Section: Methodsmentioning

confidence: 99%

“…Ethanol is a promising renewable raw material 1–3 for the production of value‐added chemicals, e.g., acetaldehyde 4–6, acetic acid 7, ethyl acetate 8, butadiene 9, diethoxyethane 10, hydrogen 11, butanol 12–14, and ethylene 15. Among these products, acetaldehyde is an important raw material for the production of acetic acid, acetic anhydride, cyanohydrin, acrylonitrile, acrylic acid esters, lactic acid, etc.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

et al. 2021

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The effect of modifying additives (Ni, La, Ce oxides) on the activity of Cu/Al2O3 with a low copper loading was studied for ethanol non‐oxidative dehydrogenation. The catalysts were prepared by impregnation of the commercial Al2O3 granules and characterized by Brunauer‐Emmett‐Teller (BET), scanning electron microscopy (SEM), temperature‐programmed desorption of NH3 (TPD‐NH3), temperature‐programmed reduction of H2 (H2‐TPR), and thermogravimetric analysis (TGA). Modification of Cu/Al2O3 with Ni, La, and Ce oxides results in increasing catalytic activity. A modification of the Cu/Al2O3 catalyst with nickel and lanthanum oxides, in contrast to cerium oxide, leads to an improvement in the dispersion of the catalyst particles. The Cu‐Ni/Al2O3 catalyst with the highest acidity has the highest selectivity for acetaldehyde. The highest selectivity for butanol is observed for the Cu‐La/Al2O3 catalyst, which has the lowest acidity.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

et al. 2021

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“…An alternative way to produce hydrogen is the conversion of bioethanol [17]. Bioethanol from biomass is a renewable and cheap starting material for hydrogen production.…”

Section: Conversion Of Bioethanolmentioning

confidence: 99%

Promising methods for hydrogen producing

Ергазиева¹,

Telbayeva²,

Dossumov³

et al. 2020

Горение и Плазмохимия

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Hydrogen production is one of the most promising ways to develop the energy sector of the future. Hydrogen does not exist in nature in its elemental form and therefore, it must be obtained from hydrocarbon, water or any other hydrogen-containing compounds. The variety of potential sources of raw materials for hydrogen production is one of the important reasons, in which hydrogen is such a promising energy carrier. The article describes methods for preparing the basic energy carrier, hydrogen from natural gas, ethanol etc. Among various types of raw materials, bioethanol is very attractive because of its relatively high hydrogen content, availability, as well as safety during storage and handling.

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“…The method utilizes several advantages, e.g. relative simplicity, less hazardous waste, and more efficient use of a low-percentage active component, there is no loss of impregnating solution, which is especially important in the manufacture of expensive catalysts [34,35].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Decomposition of Methane to Hydrogen over Al2O3 Supported Mono- and Bimetallic Catalysts

Ергазиева

Makayeva

Shaimerden

et al. 2021

Bull. Chem. React. Eng. Catal.

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This article discusses the decomposition of methane in the temperature range 550–800 °C on low-percentage monometallic (Ni/g-Al2O3, Co/g-Al2O3) and bimetallic (Ni-Co/g-Al2O3) catalysts. It is shown that the bimetallic catalyst is more active in the decomposition of methane to hydrogen than monometallic ones. At a reaction temperature of 600 °C, the highest methane conversion is 81%, and the highest hydrogen yield of 51% is formed on Ni-Co/g-Al2O3. A complex of physicochemical methods (Scanning Electron Microscope (SEM), X-ray Diffraction (XRD), Temperature Programmed Reduction (TPR-H2), etc.) established that the addition of cobalt oxide to the composition of Ni/g-Al2O3 leads to the formation of surface bimetallic Ni-Co alloys, while the dispersion of particles increases and the reducibility of the catalyst is facilitated, which provides an increase in the concentration of metal particles - active centers, which can be the reason for an increase in the catalytic properties of a bimetallic catalyst in comparison with monometallic ones. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Cerium-containing catalysts for converting ethanol into ethylene

Cited by 11 publications

References 2 publications

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Promising methods for hydrogen producing

Catalytic Decomposition of Methane to Hydrogen over Al2O3 Supported Mono- and Bimetallic Catalysts

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Cerium-containing catalysts for converting ethanol into ethylene

Cited by 11 publications

References 2 publications

Effect of Ni, La, and Ce Oxides on a Cu/Al2O3 Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al2O3 Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Promising methods for hydrogen producing

Catalytic Decomposition of Methane to Hydrogen over Al2O3 Supported Mono- and Bimetallic Catalysts

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Product

Resources

About

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation