Carbon dioxide methanation kinetic model on a commercial Ni/Al2O3 catalyst

Champon, Isabelle; Bengaouer, Alain; Chaise, A.; Thomas, Sébastien; Roger, Anne‐Cécile

doi:10.1016/j.jcou.2019.05.030

Cited by 59 publications

(40 citation statements)

References 25 publications

(36 reference statements)

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“…Lastly, sintering may also be accelerated under hydrothermal conditions. 13,22,54,[96][97][98][99] /p H 2 ratio during exposure to high ratios up to 50 in the temperature range 500-825 C. 22,96,97…”

Section: Size Dependent Stability Of Metal Nanoparticlesmentioning

confidence: 99%

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Wolf

2021

RSC Adv.

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Section: Size Dependent Stability Of Metal Nanoparticlesmentioning

confidence: 99%

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Wolf

2021

RSC Adv.

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“…However, the CH 4 selectivity considerably dropped from 65 % down to 50 %. Regarding the mechanism proposed, high temperatures promote the RWGS explaining the increase of CO 2 conversion, but at the same time they shift the equilibrium of exothermic CO methanation toward the CO production, thus decreasing the selectivity . Further increase of the magnetic field amplitude up to 65 mT led to similar temperatures and hence conversion rates.…”

Section: Figurementioning

confidence: 94%

Engineering Iron–Nickel Nanoparticles for Magnetically Induced CO₂Methanation in Continuous Flow

et al. 2020

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Induction heating of magnetic nanoparticles (NPs) is a method to activate heterogeneous catalytic reactions. It requires nano‐objects displaying high heating power and excellent catalytic activity. Here, using a surface engineering approach, bimetallic NPs are used for magnetically induced CO2 methanation, acting both as heating agent and catalyst. The organometallic synthesis of Fe30Ni70 NPs displaying high heating powers at low magnetic field amplitudes is described. The NPs are active but only slightly selective for CH4 after deposition on SiRAlOx owing to an iron‐rich shell (25 mL min−1, 25 mT, 300 kHz, conversion 71 %, methane selectivity 65 %). Proper surface engineering consisting of depositing a thin Ni layer leads to Fe30Ni70@Ni NPs displaying a very high activity for CO2 hydrogenation and a full selectivity. A quantitative yield in methane is obtained at low magnetic field and mild conditions (25 mL min−1, 19 mT, 300 kHz, conversion 100 %, methane selectivity 100 %).

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“…[57] In future studies, the group will further investigate the catalytic activity depending on the operating time under the reactive conditions of CO 2 methanation (H 2 /CO 2 = 4). The aim is to relate experimental deactivation results with modeled ones by coupling a kinetic model of CO 2 methanation [58] with the previously shown sintering law.…”

Section: Sinteringmentioning

confidence: 99%

A Short Review on Ni‐Catalyzed Methanation of CO₂: Reaction Mechanism, Catalyst Deactivation, Dynamic Operation

Strucks

Failing

Kaluza

2021

Chemie Ingenieur Technik

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This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.Today, the use of renewable energies and recycling of climate-changing gases are increasingly important. In this context, coupling of methanation with small, decentralized CO 2 sources such as biogas plants provides one possibility. However, fluctuating availability of renewables for hydrogen production in combination with small storage volumes result in an enhanced demand for dynamic process operation. This leads to new research challenges with respect to the required catalysts and the overall process design. To draw reliable conclusions about the catalytic performance under dynamic process operation, the mechanism of the methanation reaction as well as typical deactivation procedures of the catalyst applied under steady-state conditions have to be reviewed thoroughly.

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Carbon dioxide methanation kinetic model on a commercial Ni/Al2O3 catalyst

Cited by 59 publications

References 25 publications

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Engineering Iron–Nickel Nanoparticles for Magnetically Induced CO₂Methanation in Continuous Flow

A Short Review on Ni‐Catalyzed Methanation of CO₂: Reaction Mechanism, Catalyst Deactivation, Dynamic Operation

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Carbon dioxide methanation kinetic model on a commercial Ni/Al2O3 catalyst

Cited by 59 publications

References 25 publications

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Thermodynamic assessment of the stability of bulk and nanoparticulate cobalt and nickel during dry and steam reforming of methane

Engineering Iron–Nickel Nanoparticles for Magnetically Induced CO2Methanation in Continuous Flow

A Short Review on Ni‐Catalyzed Methanation of CO2: Reaction Mechanism, Catalyst Deactivation, Dynamic Operation

Contact Info

Product

Resources

About

Engineering Iron–Nickel Nanoparticles for Magnetically Induced CO₂Methanation in Continuous Flow

A Short Review on Ni‐Catalyzed Methanation of CO₂: Reaction Mechanism, Catalyst Deactivation, Dynamic Operation