CO2 methanation over nickel-based catalyst supported on yttria-stabilized zirconia

Kristiani, Anis; Takeishi, Kaoru

doi:10.1016/j.catcom.2022.106435

Cited by 16 publications

(11 citation statements)

References 32 publications

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“…CO 2 methanation was investigated on unsupported Ni metal particles produced by the reduction of NiO with H 2 by Garbarino et al [30], Pandey et al [31], Varvoutis et al [32], and Kristiani and Takeishi [33], while Lee et al tested Raney nickel [34]. Ni particles sized at 100-200 nm show moderate catalytic activity, definitely lower than for supported nickel [30,32].…”

Section: Unsupported Nickel Catalystsmentioning

confidence: 99%

Looking for an Optimal Composition of Nickel-Based Catalysts for CO2 Methanation

et al. 2023

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A detailed critical analysis of the scientific literature data concerning catalysts for CO2 methanation based on nickel supported over oxides was performed. According to the obtained information, it seems that an ionic support is necessary to allow a good nickel dispersion to produce very small nickel metal particles. Such small metal particles result in being very active toward methanation, limiting the production of carbonaceous materials. The use of support and/or surface additives gives rise to medium surface basicity, allowing medium-strong adsorption of CO2, and it is also advisable to increase the reaction rate. A medium nickel loading would allow the free support geometric surface to be covered densely by small nickel metal particles without the production of larger Ni crystals. It is also advisable to work at temperatures where Ni(CO)4 formation is not possible (e.g., >573 K). The promising properties of systems based on doped Ni/Al2O3, doped with basic and re-active oxides such as MnOx or/and CeO2, and those based on Ni/CeO2 were underlined.

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Section: Unsupported Nickel Catalystsmentioning

confidence: 99%

Looking for an Optimal Composition of Nickel-Based Catalysts for CO2 Methanation

et al. 2023

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“…The desired gas compositions from ALICAT MFCs were adjusted and fed to the system according to the reaction conditions. Before the reaction, calcined catalysts were treated for reduction with a gas mixture composed of 10v%H2 -90v %N2 at 350 ⁰C for 4 h under atmospheric pressure [13]. The product gas was quantitatively analyzed every 30 min by an on-line (Agilent, 7820A GC) gas chromatography equipped with a TCD detector and a Carboxen column.…”

Section: Data Collection and Experimental Proceduresmentioning

confidence: 99%

Predictive Modeling of Co2 Methanation Reaction for Carbon Capture

Okur

2023

Preprint

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Among various processes, catalytic CO2 methanation has emerged as a promising method for carbon capture and utilization. Therefore, a CO2 methanation reaction studied with experimentally. The extent of coke formation on the catalyst after the reaction was quantitatively studied. Then, four different machine learning model were employed in order to model CO2 methanation process and to predict CO2, CO, CH4, H2 and N2 concentrations at outlet. The results of the machine learning models were consistent with the experimental data. Performances of the proposed regression methods are evaluated with 10-fold cross validation. Random forest and decision tree regression performed the best among other methods by achieving R >0.98 for the output concentrations and were able to outperform other modeling approaches. It was shown that the best result among the literature studies is reached in this study. The results have demonstrated the possibility of simulation of the methanation process via machine learning techniques. These techniques can be used control and optimization of carbon capture.

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“…Methane is produced through carbon dioxide hydrogenation or carbon dioxide methanation and is an important part of renewable energy [2]. CO2 methanation is considered to be an important way to reduce CO2 emissions and generate the fuel gas methane.…”

Section: Catalyst and Methanationmentioning

confidence: 99%

“…The type and activity of the catalyst is particularly important in the process of catalytic methane production. Therefore, the yield of methane generated by this technology is influenced by the type of catalyst [2]. There have been many studies for catalysts and most of them use nickel and iron as catalysts [2,3].…”

Section: Catalyst and Methanationmentioning

confidence: 99%

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Development of Methane Production and Storage Technology

Wang

2022

HSET

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With the global transition to a sustainable low-carbon economy, methane production and capture technologies are two of the main low-carbon energy technologies, and the reduction of greenhouse gas emissions and the efficient use of energy gases are the main challenges for both technologies. This paper reviews various ways of methane production and storage, such as electrolysis and methanation in production technology, treatment of organic waste water for methane production, microbial electrolysis, and anaerobic digestion of plants. Geological storage, surface tank storage and sorbent material storage are among the storage technologies. The results show that methane production at this stage exists mostly in the laboratory stage and there are few technologies that can support industrial methane production, electrolysis of methane and methanation still cannot be used in industrial production on a large scale due to cost, and anaerobic consumption of fauna has immature technology. In terms of methane storage, more reliance is still placed on surface tanks, and research on geological storage is still limited by the cost and volume per unit storage capacity and sorbent materials that are still in the exploratory stage. Geological storage, for example, is limited to seasonal and cyclical variations and does not allow for efficient long-term storage. In this paper, we have searched through a large body of literature in order to find better solutions to produce and store methane, and hopefully find technologies that are less harmful to the environment as they evolve.

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CO2 methanation over nickel-based catalyst supported on yttria-stabilized zirconia

Cited by 16 publications

References 32 publications

Looking for an Optimal Composition of Nickel-Based Catalysts for CO2 Methanation

Looking for an Optimal Composition of Nickel-Based Catalysts for CO2 Methanation

Predictive Modeling of Co2 Methanation Reaction for Carbon Capture

Development of Methane Production and Storage Technology

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