Property based ranking of CO and CO 2 methanation catalysts

Kuzņecova, Inga; Gusca, Julija

doi:10.1016/j.egypro.2017.09.068

Cited by 82 publications

(49 citation statements)

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“…Ru catalysts at 300 °C results in a 96 % methane yield while Ni catalysts shows a maximum yield of 80 % at 400 °C . Ru is about 120 times more expensive than Ni and Ni catalysts have a short lifetime, because of carbon deposition which blocks pores and consequently deactivates the catalyst . A rational design of Ni‐based methanation catalysts with high activity at low temperatures, good redox properties, and better stability at reaction temperatures are still required for industrial applications .…”

Section: Current Understanding Of Co2 Catalytic Hydrogenationmentioning

confidence: 99%

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

et al. 2020

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Density functional theory (DFT) of the CO2 behavior on the catalyst surface provides valuable insights about the C=O bond activation, information about adsorption and dissociation of CO2, understanding the elementary steps involved in the mechanism of the CO2 hydrogenation reaction. Nowadays, DFT computational studies for the catalytic hydrogenation of CO2 are becoming very popular. Therefore, this article is focused on a comprehensive review of the DFT studies in thermocatalytic hydrogenation of CO2 at the gas‐surface interface and discusses three aspects: 1) processes taking place on the surfaces and facets of transition metal heterogeneous catalysts, 2) adsorption of CO2 on surfaces of different transition metals; 3) current understanding of reaction mechanisms taking place on the catalytic surface for the production of different compounds. A detailed schematic overview of the possible CO2 hydrogenation mechanisms and DFT simulations presented here will enhance the current understanding of the CO2 catalytic hydrogenation.

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Section: Current Understanding Of Co2 Catalytic Hydrogenationmentioning

confidence: 99%

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

et al. 2020

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“…The choice of the support also largely affects the catalytic activity as well as the sulfur tolerance and stability. Tada has compared the activity of supported Ni catalysts and reports that it decreases in the following order: CeO 2 > α ‐Al 2 O 3 > TiO 2 > MgO .…”

Section: Introductionmentioning

confidence: 99%

CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design

et al. 2019

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The sulfur tolerance of mono‐ and bimetallic ruthenium catalysts for CO2 hydrogenation was investigated in microchannel reactors. H2S was selected as a model compound. It was found that a Ru/CeO2 catalyst deactivates rapidly. Ni was a much better additive to improve the catalyst stability compared to Rh and serves as a sulfur trap. The influence of the support was evaluated showing that a SiO2‐supported catalyst has a higher stability and better selectivity compared to CeO2 and TiO2. A plant concept was developed comprising two‐step methanation with a first adiabatic reactor stage followed by a plate heat‐exchanger reactor with integrated cooling which allows more than 97 % CO2 conversion. A pilot plant will be put into operation in connection with a biogas plant and an electrolyser of 50 kW power consumption.

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“…[1][2][3][4][5][6] Ni and Ru-based materials have been commonly used for this reaction, on different supports, such as Al 2 O 3 , [7][8][9][10][11][12][13][14][15] SiO 2 , [16][17][18][19][20] Ce and Zr oxides, [21][22][23][24][25][26][27][28] hydrotalcites and hydrotalcite-derived materials, [21,[29][30][31][32] carbon nanotubes, [33][34][35][36][37] mesoporous materials, [38][39][40][41][42][43] and zeolites. [1][2][3][4][5][6] Ni and Ru-based materials have been commonly used for this reaction, on differen...…”

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confidence: 99%

Ni‐Ce/Zeolites for CO₂ Hydrogenation to CH₄: Effect of the Metal Incorporation Order

et al. 2018

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a] InÞsG raÅa, [b] JosØ M. Lopes, [a] andC arlosH enriques* [a] Introduction CO 2 methanation, as af orm of alleviating CO 2 emissions, has been the focus of much attention in the last few years, with thermal, photocatalytic,e lectrochemical, or even plasma assisted processes being used. [1][2][3][4][5][6] Ni and Ru-based materials have been commonly used for this reaction, on different supports, such as Al 2 O 3 , [7][8][9][10][11][12][13][14][15] SiO 2 , [16][17][18][19][20] Ce and Zr oxides, [21][22][23][24][25][26][27][28] hydrotalcites and hydrotalcite-derived materials, [21,[29][30][31][32] carbon nanotubes, [33][34][35][36][37] mesoporous materials, [38][39][40][41][42][43] and zeolites. [44][45][46][47][48][49] Amongt he different supports used, zeolitesh ave been revealed to be interesting materials, as their properties (e.g.,S i/ Al ratio, compensating cation) can be easily modified to meet the requirements of the reaction.Ni-basedu ltrastable Yz eolites (USY) have been appliedt o the CO 2 methanation reaction, with very promising results. [44][45][46][47][48][49] In these studies, changes to the metal incorporation method (impregnation or ion-exchange), the preparation conditions, the type of compensating cation, and the Si/Al ratio have been investigated to try to obtain an optimized catalyst formulation. [44][45][46] In addition, some highlights into the mechanism and [a] M.

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Property based ranking of CO and CO 2 methanation catalysts

Cited by 82 publications

References 14 publications

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design

Ni‐Ce/Zeolites for CO₂ Hydrogenation to CH₄: Effect of the Metal Incorporation Order

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Property based ranking of CO and CO 2 methanation catalysts

Cited by 82 publications

References 14 publications

Recent Developments in the Modelling of Heterogeneous Catalysts for CO2 Conversion to Chemicals

Recent Developments in the Modelling of Heterogeneous Catalysts for CO2 Conversion to Chemicals

CO2 Methanation in Microstructured Reactors – Catalyst Development and Process Design

Ni‐Ce/Zeolites for CO2 Hydrogenation to CH4: Effect of the Metal Incorporation Order

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Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

CO₂ Methanation in Microstructured Reactors – Catalyst Development and Process Design

Ni‐Ce/Zeolites for CO₂ Hydrogenation to CH₄: Effect of the Metal Incorporation Order