Kinetics of the hydrogenation of CO 2 to methanol at atmospheric pressure using a Pd-Cu-Zn/SiC catalyst

Díez-Ramírez, J.; Díaz, José A.; Dorado, Fernando; Sánchez, Paula

doi:10.1016/j.fuproc.2018.01.024

Cited by 33 publications

(15 citation statements)

References 23 publications

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“…b 3 has a similar temperature dependence form as in b 1 and b 2 in eqs and . Compared to the frequently accepted and use of the dual-site Langmuir model in the literature, the application of triple-site Langmuir was found in very few publications, including two on adsorption isotherms, , and others on catalyst kinetics which can be linked to multiple active sites for adsorption. − No papers were found using the triple-site Langmuir for describing water adsorption.…”

Section: Resultsmentioning

confidence: 99%

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Wang

2020

Ind. Eng. Chem. Res.

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A systematic study of water adsorption isotherms of zeolite 3A and 4A crystals over a pressure range of 10 −5 to 10 −1 bar and temperatures from 25 to 250 °C was carried out. This work focuses on water isotherms of 3A and 4A zeolite crystals, not pelletized zeolites containing binders. Zeolite 3A crystals show approximately 12% less swing working capacity for partial pressure swing processes at room temperature for deep dehydration, when compared to 4A crystals. However, the 3A crystal can be regenerated at a lower temperature than the 4A crystal. The 4A crystal has a steeper water isotherm and higher heat of adsorption at zero coverage than 3A. Our results on 3A and 4A crystals are compared to literature data for pelletized 3A and 4A zeolites which contain binders. A new triple-site Langmuir model has been proposed and provides a satisfactory description when compared to other models, such as the Toth model and dual-site Langmuir model. The triple-site Langmuir model is consistent with the Linde-Type A crystal having three different sites for water adsorption. The improvement in fitting is significant in the region where water loadings approach a maximum. This new model was also successfully applied to existing literature data sets for the water isotherm at multiple temperatures for 3A and 4A beads. These results provide fundamental water isotherms and a simple model to evaluate 3A and 4A in deep dehydration with temperature-swing, or partial pressure-swing adsorption processes, or their combination using nontraditional monolith contactors.

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Section: Resultsmentioning

confidence: 99%

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Wang

2020

Ind. Eng. Chem. Res.

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“…Therefore, this was concluded to be the most suitable kinetic model. 254 The reaction rate equations for methanol synthesis from CO 2 and the RWGS reaction (eqn (8) and ( 9)) proposed by Díaz et al 254 are as follows:…”

Section: Catalysis Science and Technologymentioning

confidence: 99%

“…These models do not explain the elementary reaction steps at the molecular level and different model formulations can often adequately describe the same experimental data. Therefore, a more comprehensive inspection of the reaction kinetics can be performed using microkinetic modeling, where an elementary reaction scheme and the molecular states of reactants and intermediates are utilized in simulating the Table 4 Adsorption terms for the different types of models as reported by Díaz et al 254…”

Section: Kinetic Modelingmentioning

confidence: 99%

Recent advances in hydrogenation of CO₂ into hydrocarbons via methanol intermediate over heterogeneous catalysts

Sharma

Sebastian

Ghosh

et al. 2021

Catal. Sci. Technol.

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“…Reproduced with permission. [ 36 ] Copyright 2018, Elsevier B.V. c) scanning transmission electron microscopy (STEM) image of a Pt 3 Co octopod. d) Time course of the CO 2 hydrogenation into MeOH catalyzed by Pt 3 Co octopods at 150 °C with CO 2 (8 bar) and H 2 (24 bar).…”

Section: Thermocatalysismentioning

confidence: 99%

Recent Progress in Materials Exploration for Thermocatalytic, Photocatalytic, and Integrated Photothermocatalytic CO₂‐to‐Fuel Conversion

Zhang

Pérez‐Ramírez

et al. 2021

Adv Energy and Sustain Res

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The excess depletion of carbon‐rich fossil fuels and agroforest biomass resources has aggravated the energy crisis and environmental pollution, causing increased CO2 emissions. Accordingly, the goal of “peak CO2 emissions and carbon neutrality” is proposed to alleviate global warming. CO2‐to‐fuel conversion is considered as a preferable move for reducing the atmospheric CO2 concentration and further upgrading to chemical feedstocks. However, the highly efficient CO2 conversion remains challenging due to the thermodynamic limits and kinetic barriers, which require high energy input through conventional thermocatalysis. Inspired by “artificial photosynthesis,” photocatalytic CO2 transformation has received tremendous attention and makes remarkable progress over the past decades, although it is still far from practical application. Recently, the integrated photothermocatalysis has emerged as an intelligent strategy to utilize solar energy to induce local heating and energetic hot carriers, which synergistically promote CO2‐to‐fuel conversion. The key to the success of CO2 upgradation is catalysts’ development with improved activity, selectivity, and stability. This review highlights the recent advancements in materials designing for practical CO2 conversion through thermocatalysis, photocatalysis, and photothermocatalysis during the past five years, emphasizing the reaction pathways and mechanism on the CO bond activation and intermediates formation. Finally, the current challenges and future opportunities are described.

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Kinetics of the hydrogenation of CO 2 to methanol at atmospheric pressure using a Pd-Cu-Zn/SiC catalyst

Cited by 33 publications

References 23 publications

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Recent advances in hydrogenation of CO₂ into hydrocarbons via methanol intermediate over heterogeneous catalysts

Recent Progress in Materials Exploration for Thermocatalytic, Photocatalytic, and Integrated Photothermocatalytic CO₂‐to‐Fuel Conversion

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Kinetics of the hydrogenation of CO 2 to methanol at atmospheric pressure using a Pd-Cu-Zn/SiC catalyst

Cited by 33 publications

References 23 publications

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Measurements and Modeling of Water Adsorption Isotherms of Zeolite Linde-Type A Crystals

Recent advances in hydrogenation of CO2 into hydrocarbons via methanol intermediate over heterogeneous catalysts

Recent Progress in Materials Exploration for Thermocatalytic, Photocatalytic, and Integrated Photothermocatalytic CO2‐to‐Fuel Conversion

Contact Info

Product

Resources

About

Recent advances in hydrogenation of CO₂ into hydrocarbons via methanol intermediate over heterogeneous catalysts

Recent Progress in Materials Exploration for Thermocatalytic, Photocatalytic, and Integrated Photothermocatalytic CO₂‐to‐Fuel Conversion