Does shaping catalysts modify active phase sites? A comprehensive in situ FTIR spectroscopic study on the performance of a model Ru/Al2O3 catalyst for the CO methanation

Bobadilla, Luis F.; Muñoz‐Murillo, Ara; Laguna, Óscar H.; Odriozola, J.A.

doi:10.1016/j.cej.2018.09.166

Cited by 38 publications

(16 citation statements)

References 60 publications

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“…However, the tableting process is often conducted by trial-and-error approach [8]. The tableting method is often proprietary, and the related patents provided a range of shaping conditions and rarely disclosed any details [9,10]. In most cases, there is a huge difference in the performance of catalysts in powder and the shaped forms [11].…”

Section: Introductionmentioning

confidence: 99%

Mechanical pressure-mediated Pd active sites formation in NaY zeolite catalysts for indirect oxidative carbonylation of methanol to dimethyl carbonate

Wang

Liu

et al. 2021

Journal of Catalysis

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Section: Introductionmentioning

confidence: 99%

Mechanical pressure-mediated Pd active sites formation in NaY zeolite catalysts for indirect oxidative carbonylation of methanol to dimethyl carbonate

Wang

Liu

et al. 2021

Journal of Catalysis

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“…In a process intensification view, the investigation of the issues related to reactor design and kinetics appears crucial. In this regard, the advantages of monolithic as well as micro structured reactors have been shown in comparison with the commonly used configurations (packed bed catalysts) [68].…”

Section: Activity and Kinetics Of Structured Catalysts In Wgs Reactionmentioning

confidence: 99%

“…The higher CO conversion, observed for the Pt-based monolith, was attributed to the parallel CO oxidation reaction. Routinely, it has assumed that the catalytic layer coated on monoliths and microchannel reactors preserve the same properties of the initial powder catalyst; however, Bobadilla et al have denied this affirmation [68].…”

Section: Activity and Kinetics Of Structured Catalysts In Wgs Reactionmentioning

confidence: 99%

Recent Advances in Structured Catalysts Preparation and Use in Water-Gas Shift Reaction

et al. 2019

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The water-gas shift reaction plays a key role in hydrogen production processes from fossil sources and renewable biomass feedstock and can be considered as the first purification process of syngas. The water gas shift process is normally carried out in two adiabatic stages, of high and low temperature with an intersystem cooling. The two stages use two different catalytic systems, which present some critical issues, thus making extremely attractive the designing and implementing of new configurations. Innovative and highly active catalytic formulations along with more efficient reactor systems could provide the basis for the design of a single-stage process, resulting in a noticeable process intensification. In the last decades, much attention has been paid to the use of structured catalysts, which have numerous advantages, related to both fluid dynamics and heat transfer phenomena. Numerous papers have been published in which the competitive performances of structured catalysts have been shown with respect to conventional catalytic systems. In this brief review, we provide an overview of the most recent developments in the preparation of structured catalysts and use in the water gas shift reaction.

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“…The direct low-cost transformation of carbon dioxide into methane is highly exothermic, although less than the indirect valorization through CO methanation industrially developed [51] (Equation (2)). CO 2 methanation…”

Section: Co2 Valorisation Through the Sabatier Reactionmentioning

confidence: 99%

Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

et al. 2018

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The current scenario where the effects of global warming are more and more evident, has motivated different initiatives for facing this, such as the creation of global policies with a clear environmental guideline. Within these policies, the control of Greenhouse Gase (GHG) emissions has been defined as mandatory, but for carrying out this, a smart strategy is proposed. This is the application of a circular economy model, which seeks to minimize the generation of waste and maximize the efficient use of resources. From this point of view, CO2 recycling is an alternative to reduce emissions to the atmosphere, and we need to look for new business models which valorization this compound which now must be considered as a renewable carbon source. This has renewed the interest in known processes for the chemical transformation of CO2 but that have not been applied at industrial level because they do not offer evident profitability. For example, the methane produced in the Sabatier reaction has a great potential for application, but this depends on the existence of a sustainable supply of hydrogen and a greater efficiency during the process that allows maximizing energy efficiency and thermal control to maximize the methane yield. Regarding energy efficiency and thermal control of the process, the use of structured reactors is an appropriate strategy. The evolution of new technologies, such as 3D printing, and the consolidation of knowledge in the structing of catalysts has enabled the use of these reactors to develop a wide range of possibilities in the field. In this sense, the present review presents a brief description of the main policies that have motivated the transition to a circular economy model and within this, to CO2 recycling. This allows understanding, why efforts are being focused on the development of different reactions for CO2 valorization. Special attention to the case of the Sabatier reaction and in the application of structured reactors for such process is paid.

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Does shaping catalysts modify active phase sites? A comprehensive in situ FTIR spectroscopic study on the performance of a model Ru/Al2O3 catalyst for the CO methanation

Abstract: Does shaping catalysts modify active phase sites? A comprehensive in situ FTIR spectroscopic study on the performance of a model Ru/Al 2 O 3 catalyst for the CO methanation,

Cited by 38 publications

References 60 publications

Mechanical pressure-mediated Pd active sites formation in NaY zeolite catalysts for indirect oxidative carbonylation of methanol to dimethyl carbonate

Mechanical pressure-mediated Pd active sites formation in NaY zeolite catalysts for indirect oxidative carbonylation of methanol to dimethyl carbonate

Recent Advances in Structured Catalysts Preparation and Use in Water-Gas Shift Reaction

Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

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