Why is calcium an effective promoter for plasma CO2 methanation over polymer P123-modified NiMgAlOx-mixed oxide catalysts?

Nguyen-Quang, Minh; Azzolina-Jury, Federico; Samojeden, Bogdan; Motak, Monika; Costa, Patrick Da

doi:10.1016/j.apcatb.2023.122952

Cited by 5 publications

References 72 publications

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Low Temperature Sabatier CO₂ Methanation

Molinet‐Chinaglia,

Shafiq,

Serp

2024

ChemCatChem

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The CO2 methanation reaction, or Sabatier reaction, is experiencing renewed interest in the context of large‐scale recycling of point CO2 emissions, leading to the power‐to‐gas technology. The reaction represents a flexible route to transform CO2 into methane by hydrogenation with (green) dihydrogen. This exothermic transformation takes place at a reasonable rate at temperatures above 200 °C and is directed to the targeted product at low temperatures. The CO2 methanation nevertheless remains kinetically limited due to the chemical stability of CO2 and the high bond dissociation energy for C=O in CO2. Therefore, the current urgent demand is for the development of catalysts and associated processes with superior activity for CO2 activation at low temperatures. This critical review aims to overview the state of the art of this low‐temperature technology using thermal, plasma and photo‐assisted catalysis. We summarize research advances around low‐temperature CO2 methanation, focusing on catalyst formulations (metal, supports and promoters), reaction mechanisms and suitable activation processes. We discuss each of these critical aspects of the technology and identify the main challenges and opportunities for low temperature (≤ 200 °C) CO2 methanation.

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Low Temperature Sabatier CO₂ Methanation

Molinet‐Chinaglia,

Shafiq,

Serp

2024

ChemCatChem

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Role of Ca in Ni-Ca/Fumed-SiO2 Catalysts for CO2 Catalytic Conversion to Methane

Mohammed,

Ebrahimi,

Yuda

et al. 2024

Top Catal

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This study investigates the role of calcium in facilitating the carbon dioxide methanation reaction over nickel supported on fumed-SiO2 catalysts. The wet impregnation method was used to prepare Ni/fumed-SiO2 catalysts with three different Ca loadings for CO2 conversion. As part of the investigation into the effects of Ca concentration and reaction conditions on the structural and morphological properties of the catalysts, various techniques including XRD, BET, SEM, TPR and TEM were used for both fresh and used catalyst samples. The findings showed that the addition of 0.5% Ca increases the catalyst reducibility, promotes dispersion of Ni sites on the surface of fumed SiO2 support and prevents the metal from agglomerating. Evaluation of catalytic results showed that the performance of 10%Ni-0.5Ca/fumed-SiO2 was superior to the other tested catalysts, with CO2 conversion and CH4 yield of 76% and ~ 40% at 650 °C, respectively.

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In-situ FTIR analysis on conventional and sorption-enhanced methanation (SEM) processes over Ni, Rh, and Ru-based catalyst systems

Goméz,

Nguyen-Quang,

Azzolina-Jury

et al. 2024

Applied Catalysis A: General

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Why is calcium an effective promoter for plasma CO2 methanation over polymer P123-modified NiMgAlOx-mixed oxide catalysts?

Cited by 5 publications

References 72 publications

Low Temperature Sabatier CO₂ Methanation

Low Temperature Sabatier CO₂ Methanation

Role of Ca in Ni-Ca/Fumed-SiO2 Catalysts for CO2 Catalytic Conversion to Methane

In-situ FTIR analysis on conventional and sorption-enhanced methanation (SEM) processes over Ni, Rh, and Ru-based catalyst systems

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Why is calcium an effective promoter for plasma CO2 methanation over polymer P123-modified NiMgAlOx-mixed oxide catalysts?

Cited by 5 publications

References 72 publications

Low Temperature Sabatier CO2 Methanation

Low Temperature Sabatier CO2 Methanation

Role of Ca in Ni-Ca/Fumed-SiO2 Catalysts for CO2 Catalytic Conversion to Methane

In-situ FTIR analysis on conventional and sorption-enhanced methanation (SEM) processes over Ni, Rh, and Ru-based catalyst systems

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Product

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Low Temperature Sabatier CO₂ Methanation

Low Temperature Sabatier CO₂ Methanation