CO2 methanation on Ni/Ce0.5Zr0.5O2 catalysts for the production of synthetic natural gas

Pan, Qing; Peng, Jiaxi; Sun, Tianjun; Gao, Diannan; Wang, Sheng

doi:10.1016/j.fuproc.2014.01.004

Cited by 96 publications

(53 citation statements)

References 57 publications

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“…The H 2 -TPR profiles reported in [180] show peaks in the temperature range from 400 • C to 600 • C for CZ, attributed to a reduction of surface oxygen and bulk oxygen in Ce 0.5 Zr 0.5 O 2 , respectively [42, 181,182], while the peaks around 360 • C are assigned to the reduction of surface oxygen in CZ and of the bulk NiO, having weak interaction with the support. Peaks at 400-600 • C are related to bulk oxygen in CZ and NiO having strong interaction with the support, or Ni ions incorporated into CZ [183].…”

Section: Silica-supported Nickelmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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CO 2 methanation is a well-known reaction that is of interest as a capture and storage (CCS) process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas (SNG) production. Integrating water electrolysis and CO 2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO 2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO 2 methanation process. For this reason, research on CO 2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO 2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO 2 methanation process increases their productivity. The present work aims to give a critical overview of CO 2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO 2 methanation, are also included.

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Section: Silica-supported Nickelmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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“…In this way, CO 2 hydrogenation has been studied over a wide range of supports [8][9][10][11][12] (e.g., SiO 2 , Al 2 O 3 , TiO 2 , Ce-Zr mixed oxides) and using VIIIB metals (e.g., Rh [13], Ru [9,14], Pd [15] and Ni [11,12]). Among this wide variety of supports and metals studied, few attention has been paid for Ni/zeolite catalysts despite an interesting catalytic activity with [16] or without plasma-assistance [12].…”

Section: Introductionmentioning

confidence: 99%

“…Despite several studies focused on the mechanism [10,11,17], the active surface species and reaction pathways are still under debate according to the used support and metallic specie but also the reaction conditions (T • , concentration of reactants, presence of active sites, etc). On the one hand, adsorbed CO formed by direct dissociation or disproportionation onto nickel metallic particles [18] or by partial reduction of carbonate and/or formate intermediates [19], is considered as the "true" intermediate involved in the CH 4 formation.…”

Section: Introductionmentioning

confidence: 99%

“…On the one hand, adsorbed CO formed by direct dissociation or disproportionation onto nickel metallic particles [18] or by partial reduction of carbonate and/or formate intermediates [19], is considered as the "true" intermediate involved in the CH 4 formation. The CO formation by direct dissociation is thought to occur exclusively on metallic species such as Rh or Ni [16], whereas the formation of carbonates implies such adsorption/activation sites of CO 2 (i.e., basic sites) [10]. The adsorbed CO can be further dissociated into adsorbed C and O, which are hydrogenated respectively to CH 4 and H 2 O [17].…”

Section: Introductionmentioning

confidence: 99%

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Insight into CO2 methanation mechanism over NiUSY zeolites: An operando IR study

Westermann

Azambre

Bacariza

et al. 2015

Applied Catalysis B: Environmental

240

126

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“…Ni and noble metals like Ru, Pd and Rh, are reported to be the effective towards CO 2 methanation [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Ni-based catalysts are preferred as promising catalysts for this reaction due to [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Methanation of Carbon Dioxide over Ni–Ce–Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate

et al. 2017

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Ni-Ce-Zr mixed oxides were prepared through one-pot hydrolysis of mixed metal nitrates with ammonium carbonate for CO 2 methanation. The effects of Ce/Zr molar ratio and Ni content on catalysts' physical and chemical properties, reduction degree of Ni 2+ , and catalytic properties were systematically investigated. The results showed that Zr could lower metallic Ni particle sizes and alter interaction between Ni and supports, resulting in enhancements in the catalytic activity for CO 2 methanation. The Ni-Ce-Zr catalyst containing 40 wt % Ni and Ce/Zr molar ratio of 9:1 exhibited the optimal catalytic properties, with 96.2% CO 2 conversion and almost 100% CH 4 selectivity at a low temperature of 275 • C. During the tested period of 500 h, CO 2 conversion and CH 4 selectivity over Ni-Ce-Zr catalyst kept constant under 300 • C.

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CO2 methanation on Ni/Ce0.5Zr0.5O2 catalysts for the production of synthetic natural gas

Cited by 96 publications

References 57 publications

Supported Catalysts for CO2 Methanation: A Review

Supported Catalysts for CO2 Methanation: A Review

Insight into CO2 methanation mechanism over NiUSY zeolites: An operando IR study

Methanation of Carbon Dioxide over Ni–Ce–Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate

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