Journal ArticleDOI
CO2 methanation in the presence of methane: catalysts design and effect of methane concentration in the reaction mixture
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TLDR
In this paper, a Co-doped Ni-Co/CeO2-ZrO2 sample was used to achieve high CO2 conversion and CH4 selectivity, especially at low reaction temperatures.Abstract:
The work in this paper evidences the viability of producing synthetic natural gas (SNG) via the methanation reaction tackling two fundamental challenges on methanation catalysis (i) the development of advanced catalysts able to achieve high CO2 conversion and high methane yields and (ii) the unexplored effect of residual methane on the methanation stream. Both challenges have been successfully addressed using Ni/CeO2-ZrO2 catalysts promoted with Mn and Co. Mn does not seem to be a good promoter while Co prevents carbon deposition and secondary reactions. In fact, our Co-doped sample reached high levels of CO2 conversion and CH4 selectivity, especially at low reaction temperatures. In addition, this catalyst exhibits excellent catalytic behaviour when methane is introduced into the gas mixture, indicating its feasibility for further study to be conducted in realistic flue gases environments and methanation units with recycling loops. Furthermore, when methane is introduced in the reactant mixture, the Ni-Co/CeO2-ZrO2 sample is very stable maintaining high levels of conversion and selectivity. Overall our Co-doped catalyst can deliver high purity synthetic natural gas for long-term runs, promising results for gas-phase CO2 conversion units.read more
Citations
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Journal ArticleDOI
Recent trends in developments of active metals and heterogenous materials for catalytic CO2 hydrogenation to renewable methane: A review
Wei Keen Fan,Muhammad Tahir +1 more
TL;DR: In this paper, the authors highlight current trends in various active metals and heterogeneous catalyst supports used for thermal hydrogenation of CO2 to methane, and the mechanism of the hydrogenation reaction was also reviewed to determine its relationship with the catalyst active site structures.
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Recent Progresses in Constructing the Highly Efficient Ni Based Catalysts With Advanced Low-Temperature Activity Toward CO2 Methanation.
Chufei Lv,Leilei Xu,Mindong Chen,Yan Cui,Xueying Wen,Yaping Li,Cai-e Wu,Bo Yang,Zhichao Miao,Xun Hu,Qinghui Shou +10 more
TL;DR: The development of highly efficient Ni based catalysts with excellent low-temperature catalytic performances has become the research focus as well as challenge in this field.
Journal ArticleDOI
Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review.
TL;DR: In this paper, a review summarizes and critically discusses recent progress made in the field of bimetallic Ni-M (M = Fe, Co, Cu, Ru, Rh, Pt, Pd, Re) based catalyst development for the CO2 methanation reaction.
Journal ArticleDOI
Switchable Catalysts for Chemical CO2 Recycling: A Step Forward in the Methanation and Reverse Water–Gas Shift Reactions
Estelle le Saché,Laura Pastor-Pérez,Bradley J Haycock,Juan José Villora-Picó,Antonio Sepúlveda-Escribano,Tomas Ramirez Reina +5 more
TL;DR: In this article, the authors showcase the application of highly effective Ru-promoted catalytic technologies for a low-carbon industry with minimised CO2 emissions, which is crucial to enable the transition towards a low carbon industry.
Journal ArticleDOI
Rare-Earth Incorporated Alloy Catalysts: Synthesis, Properties, and Applications.
Shuai Zhang,Sandra Elizabeth Saji,Zongyou Yin,Hongbo Zhang,Yaping Du,Chun-Hua Yan,Chun-Hua Yan,Chun-Hua Yan +7 more
TL;DR: In this paper, a review summarizes the composition, synthesis, and applications of rare earth containing alloys in the field of catalysis, and the challenges and possibilities of future research on rare earth metal compound materials are evaluated.
References
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Trends in global CO2 emissions: 2012 report
TL;DR: The results of a trend assessment of global CO2 emissions up to 2011 and updates last year's assessment are discussed in this article, where a summary of recent CO2 emission trends, by region and by country, and of the underlying trend of fossil fuel use, non-fossil energy and of other CO2 sources are presented.
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A thermodynamic analysis of methanation reactions of carbon oxides for the production of synthetic natural gas
TL;DR: In this paper, a comprehensive thermodynamic analysis of reactions occurring in the methanation of carbon oxides (CO and CO2) is conducted using the Gibbs free energy minimization method.
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Ni/CeO2 catalysts with high CO2 methanation activity and high CH4 selectivity at low temperatures
TL;DR: In this article, the effect of support materials on CO2 conversion and CH4 selectivity was examined over 10-wt%Ni/CeO2, 10-wwt% Ni/α-Al2O3 and 10-Wt %Ni/MgO on the performance of CO2 methanation.
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CO2 conversion by reverse water gas shift catalysis: comparison of catalysts, mechanisms and their consequences for CO2 conversion to liquid fuels
Yolanda A. Daza,John N. Kuhn +1 more
TL;DR: In this article, a review of the literature on reverse water gas shift (rWGS) catalyst types, catalyst mechanisms, and the implications of their use in CO2 conversion processes in the future is presented.
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Complete removal of carbon monoxide in hydrogen-rich gas stream through methanation over supported metal catalysts
TL;DR: In this paper, the effect of catalytic supports on methanation of CO could be explained by particles sizes of Ni and Ru metal, while Ni metal particles with relatively larger diameters were effective for the reaction.