Improvement of the activity of CO2 methanation in a hybrid plasma-catalytic process in varying catalyst particle size or under pressure

Wang, Bo; Mikhail, Maria; Cavadias, S.; Tatoulian, Michaël; Costa, Patrick Da; Ognier, Stéphanie

doi:10.1016/j.jcou.2021.101471

Cited by 21 publications

(7 citation statements)

References 44 publications

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“…Various plasma-catalytic systems are used. A catalyst may be located in a plasma zone [1][2][3][4][5][6][7], an electrode may be the catalyst [8,9], and often the catalyst is located outside the plasma zone [1,[10][11][12][13][14][15][16][17][18]. This way of placing the catalyst prevents the destruction of the catalyst by plasma and the disturbance of the discharge.…”

Section: Introductionmentioning

confidence: 99%

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

et al. 2021

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In the present work the process of hydrogen production was conducted in the plasma-catalytic reactor, the substrates were first treated with plasma and then introduced into the catalyst bed. Plasma was produced by a spark discharge. The discharge power ranged from 15 to 46 W. The catalyst was metallic nickel supported on Al2O3. The catalyst was active from a temperature of 400 °C. The substrate flow rate was 1 mol/h of water and 1 mol/h of methanol. The process generated H2, CO, CO2 and CH4. The gas which formed the greatest amount was H2. Its concentration in the gas was ~60%. The conversion of methanol and the production of hydrogen in the plasma-catalytic reactor were higher than in the plasma and catalytic reactors. The synergy effect of the interaction of two environments, i.e., plasma and the catalyst, was observed. The highest hydrogen production was 1.38 mol/h and the highest methanol conversion was 64%. The increased in the discharge power resulted in increasing methanol conversion and hydrogen production.

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Section: Introductionmentioning

confidence: 99%

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

et al. 2021

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“…In conclusion, as presented in this issue, the development of the new supports, the addition of new promoters and the use of Ni-containing catalysts in novel applications make these Ni-containing catalysts promising materials for improving the actual catalytic process and for developing new ones such as assisted catalytic processes using plasma, solar energy or electro-assisted catalysis [20][21][22][23][24][25].…”

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confidence: 94%

Ni-Containing Catalysts

Costa

2021

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“…For making NTP catalytic CO 2 methanation more competitive for pilot-scale applications, heterogeneous catalysts have been demonstrated to have a critical role in this technique with regard to CO 2 conversion efficiency and CH 4 selectivity. − Previous investigations have indicated that the intrinsic properties of metal sites and catalyst supports (e.g., metal dispersion, pore size, and structure) play key roles in promoting the plasma catalytic CO 2 methanation. , Many active metal species (e.g., Ru, Ni, Cu, and Co) have been explored for plasma catalytic CO 2 hydrogenation in methane, among which Ni is a widely used species due to its cheapness and good activity, giving considerably better CO 2 conversion (>50%) and CH 4 selectivity (>70%). ,− ,,− Chen et al , investigated Ni metals supported on different porous supports such as BETA zeolite and metal–organic frameworks (MOFs), demonstrating that the developed Ni catalysts show good activity for CO 2 conversion (>80%) and selectivity for CH 4 production (>95%) under NTP conditions.…”

Section: Introductionmentioning

confidence: 99%

Mechanochemical Synthesis of Ni–Y/CeO₂ Catalyst for Nonthermal Plasma Catalytic CO₂ Methanation

Guo

Chen

2022

Ind. Eng. Chem. Res.

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Nonthermal plasma (NTP)-assisted CO2 methanation can activate and convert stable CO2 molecules under ambient conditions as compared to conventional thermal catalysis (normal operation temperature up to 450 °C), which is a good technique to reduce CO2 emissions and simultaneously utilize the renewable energies like solar and wind. It is critical to develop a robust catalyst with good catalytic performance in order to make NTP catalytic CO2 methanation more competitive. Herein, we present a simple yet efficient synthesis of CeO2-supported Ni catalysts with yttrium (Y) as the promoter (i.e., Ni–Y/CeO2) via mechanochemical synthesis for efficient NTP catalytic CO2 methanation. The developed 7.5Ni–1Y/CeO2 catalyst demonstrated the highest energy efficiency values for CO2 conversion and CH4 yield, i.e., ∼57 gCO2 kWh–1 and ∼17 gCH4 kWh–1, respectively. The CO2-TPD and HRTEM results confirmed that the doped Y positively enhanced the basicity of the catalysts and also decreased the particle size of Ni nanoparticles, thus promoting the NTP catalytic activity of CO2 methanation. The catalyst displayed excellent short-term stability for plasma catalytic CO2 methanation over a 12 h on-stream evaluation, showing a CO2 conversion of 84.2 ± 1.8% and a CH4 selectivity of 83.3 ± 1.9%.

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Improvement of the activity of CO2 methanation in a hybrid plasma-catalytic process in varying catalyst particle size or under pressure

Cited by 21 publications

References 44 publications

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

Ni-Containing Catalysts

Mechanochemical Synthesis of Ni–Y/CeO₂ Catalyst for Nonthermal Plasma Catalytic CO₂ Methanation

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Improvement of the activity of CO2 methanation in a hybrid plasma-catalytic process in varying catalyst particle size or under pressure

Cited by 21 publications

References 44 publications

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

Ni-Containing Catalysts

Mechanochemical Synthesis of Ni–Y/CeO2 Catalyst for Nonthermal Plasma Catalytic CO2 Methanation

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Mechanochemical Synthesis of Ni–Y/CeO₂ Catalyst for Nonthermal Plasma Catalytic CO₂ Methanation