Spatially-resolved investigation of CO2 methanation over Ni/γ-Al2O3 and Ni3.2Fe/γ-Al2O3 catalysts in a packed-bed reactor

Shirsath, Akash Bhimrao; Schulte, Mariam L.; Kreitz, Bjarne; Tischer, Steffen; Grunwaldt, Jan‐Dierk; Deutschmann, Olaf

doi:10.1016/j.cej.2023.143847

Cited by 7 publications

(2 citation statements)

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“…The transition metals Ti, Mn, Fe, Co, and Cu have unique acid–base and reduction properties. Akash et al [ 91 ] compared the CO 2 methanation reaction on 17 wt% Ni/γ-Al 2 O 3 and 17 wt% Ni 3.2 Fe/γ-Al 2 O 3 catalysts and found that adding Fe could improve the stability of Ni 0 , and Fe inhibited the formation of CO * or the adsorption of CO. The 17 wt% Ni 3.2 Fe/γ-Al 2 O 3 catalyst had a higher CO 2 conversion of 42%.…”

Section: Non-noble Metal Catalysts For Co 2 Methan...mentioning

confidence: 99%

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Cui,

He,

Yang

et al. 2024

Molecules

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The extensive utilization of fossil fuels has led to a rapid increase in atmospheric CO2 concentration, resulting in various environmental issues. To reduce reliance on fossil fuels and mitigate CO2 emissions, it is important to explore alternative methods of utilizing CO2 and H2 as raw materials to obtain high-value-added chemicals or fuels. One such method is CO2 methanation, which converts CO2 and H2 into methane (CH4), a valuable fuel and raw material for other chemicals. However, CO2 methanation faces challenges in terms of kinetics and thermodynamics. The reaction rate, CO2 conversion, and CH4 yield need to be improved to make the process more efficient. To overcome these challenges, the development of suitable catalysts is essential. Non-noble metal catalysts have gained significant attention due to their high catalytic activity and relatively low cost. In this paper, the thermodynamics and kinetics of the CO2 methanation reaction are discussed. The focus is primarily on reviewing Ni-based, Co-based, and other commonly used catalysts such as Fe-based. The effects of catalyst supports, preparation methods, and promoters on the catalytic performance of the methanation reaction are highlighted. Additionally, the paper summarizes the impact of reaction conditions such as temperature, pressure, space velocity, and H2/CO2 ratio on the catalyst performance. The mechanism of CO2 methanation is also summarized to provide a comprehensive understanding of the process. The objective of this paper is to deepen the understanding of non-noble metal catalysts in CO2 methanation reactions and provide insights for improving catalyst performance. By addressing the limitations of CO2 methanation and exploring the factors influencing catalyst effectiveness, researchers can develop more efficient and cost-effective catalysts for this reaction.

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Section: Non-noble Metal Catalysts For Co 2 Methan...mentioning

confidence: 99%

Research Progress of Non-Noble Metal Catalysts for Carbon Dioxide Methanation

Cui,

He,

Yang

et al. 2024

Molecules

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“…Für heterogen-katalytische Systeme gibt es viele digitale Werkzeuge, die sich stetig weiterentwickeln. [37][38][39][40][41] Die Arbeit mit mathematischen Modellen ist seit Beginn der technischen Chemie ein wesentlicher Stützpfeiler -von der (theoretischen) Chemie bis zur Systemverfahrenstechnik. Andrew McCammon, ein Pionier der Computerchemie, berichtete im Jahr 1987 über Moleküldesign und die damit verbundenen Möglichkeiten der digitalen Werkzeuge in der Chemie.…”

Section: Vom Moleküldesign Zum Digitalen Zwillingunclassified

Trendbericht: Technische Chemie 2024

Bremer,

Ränger,

Friedland

2024

Nachr Chem

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Die Zirkularität von Stoffströmen, die Nachhaltigkeit, vor allem die Nutzung biogener Rohstoffe, sowie die Ressourcen‐ und Energiesicherheit sind seit Jahren wichtige Ziele. Ob in der Reaktions‐ oder der Trenntechnik, alle Bereiche der technischen Chemie profitieren von grundlegenden Stützpfeilern. Mit den darin enthaltenen methodischen Ansätzen lassen sich maßgeschneiderte Lösungen auf allen Größenskalen erstellen, Szenarien für die Energiewende entwerfen oder mit virtuellen Visualisierungen Vorstellungen von der Zukunft bekommen.

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