Perspectives on the process intensification of CO2 capture and utilization

Pahija, Ergys; Golshan, Shahab; Blais, Bruno; Boffito, Daria C.

doi:10.1016/j.cep.2022.108958

Cited by 37 publications

(10 citation statements)

References 100 publications

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“…In a broader perspective, the catalyst alone is important to achieve high CO 2 conversion. However, the thermodynamic limitations confine the conversion to certain limits that can be bypassed with process intensification methods . For example, a selective membrane reactor separating produced water would shift the equilibrium, thus increasing the conversion of CO 2 .…”

Section: Discussionmentioning

confidence: 99%

“…However, the thermodynamic limitations confine the conversion to certain limits that can be bypassed with process intensification methods. 180 For example, a selective membrane reactor separating produced water would shift the equilibrium, thus increasing the conversion of CO 2 . 181 The limitation in this case is caused by the low selective permeability of membranes at high temperatures.…”

Section: Discussionmentioning

confidence: 99%

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Experimental and Computational Synergistic Design of Cu and Fe Catalysts for the Reverse Water–Gas Shift: A Review

et al. 2022

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Strategies to capture and sequester ever-increasing anthropogenic CO2 emissions include adsorbing CO2 onto inorganic substrates and then storing it in reservoirs, changing land use to promote forestry, and converting CO2 to chemicals and fuels. The reverse water–gas shift (RWGS) reaction is a conversion strategy for producing CO from CO2 that provides the highest technology readiness level. Cu and alkali metals promote CO2 adsorption, Fe improves the thermal stability, and reducible supports like CeO2 accelerate the reaction rate. Density functional theory (DFT) is a practical modeling tool for evaluating the catalytic properties of materials at the atomic scale. The active phases of the Cu- and Fe-based catalysts, the effect of bimetallic compositions, the presence of promotors, and the influence of the support material are evaluated using observations from DFT simulations and experimental data. An optimal RWGS catalyst favors (1) CO2 adsorption, (2) the dissociation of CO2 or intermediate carbonate species to CO, and (3) CO desorption. Typically, a single-component catalytic plane is unfavorable for all these criteria, thus necessitating the design of an optimal multicomponent RWGS catalyst. Future DFT research is directed toward multifacet catalytic systems to understand the structural configuration of a highly active RWGS system. Experimental and characterization results complement DFT studies in the design of the optimal RWGS catalyst. Machine learning trained by literature data provides an automated approach for the inverse design of high-performance, stable, and economic catalysts for the RWGS reaction. This review encompasses experimental and computational approaches to understand the activity of RWGS catalysts.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Experimental and Computational Synergistic Design of Cu and Fe Catalysts for the Reverse Water–Gas Shift: A Review

et al. 2022

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“…CCUS technology encompasses various carbon capture methods, including precombustion capture, postcombustion capture, and oxy-fuel combustion, with postcombustion capture being the most advanced. This method includes technologies such as chemical absorption and membrane separation, as illustrated in Figure . Ammonia-based carbon capture, a form of postcombustion CO 2 absorption, has emerged as a notably promising technique for emission reduction due to its high CO 2 capture efficiency and relatively low energy requirements, rendering it especially advantageous for use in coal-fired power plants, the petrochemical industry, and other sectors characterized by high emissions.…”

Section: Carbon Reduction Technologies and Methods In The Context Of ...mentioning

confidence: 99%

Section: Carbon Reduction Technologies and Methods In The Context Of ...mentioning

confidence: 99%

Coal-Fired Power Plants Using Ammonia for Flexibility Enhancement under Carbon Control Strategies: Status, Development, and Perspectives

Ma,

Yu,

Jiang

et al. 2024

Energy Fuels

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Within the context of carbon control strategies, the development and utilization of renewable energy emerge as indispensable pathways to addressing the energy crisis and environmental challenges. The substantial increase in the share of electricity generated from renewable sources introduces issues such as instability and intermittency, posing significant challenges to the stability of the electrical grid. Consequently, enhancing the flexibility of coalfired power units is of paramount importance for maintaining the balance of supply and demand within the power system and managing grid fluctuations. Ammonia energy storage, as an innovative chemical storage solution, is regarded as an effective approach to augment the power system's capability to incorporate renewable energy generation and enhance the flexibility of coal-fired power plants. This paper summarizes three carbon reduction technologies and methodologies within the framework of carbon control strategies, elucidating the advantages and value that ammonia contributes to the process of increasing power plant flexibility. It proposes a method for coupling green power with conventional thermal power through electrolytic ammonia production, tailored for power plants. Additionally, it identifies two principal applications of ammonia within power plants as a carbon-free fuel and absorbent. Finally, it anticipates the future development trends and challenges of ammonia's role in enhancing power plant flexibility.

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“…To achieve improved CO 2 absorption performance, alkaline liquid solvents, e.g., amine [13] and monoethanolamine (MEA) [14], are typically used as absorbents. However, solvent regeneration is an energy-intensive process and is often accompanied by toxic and corrosive chemicals [15], which limits the widespread application of amine-based CO 2 capture technologies. To avoid the use of hazardous compounds and reduce energy consumption, less environmentally damaging absorbents requiring low regeneration energy have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Data-driven surrogate modelling and multi-variable optimization of trickle bed and packed bubble column reactors for CO2 capture via enhanced weathering

Lü

Jiang²,

Wang³

et al. 2023

Chemical Engineering Journal

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Perspectives on the process intensification of CO2 capture and utilization

Cited by 37 publications

References 100 publications

Experimental and Computational Synergistic Design of Cu and Fe Catalysts for the Reverse Water–Gas Shift: A Review

Experimental and Computational Synergistic Design of Cu and Fe Catalysts for the Reverse Water–Gas Shift: A Review

Coal-Fired Power Plants Using Ammonia for Flexibility Enhancement under Carbon Control Strategies: Status, Development, and Perspectives

Data-driven surrogate modelling and multi-variable optimization of trickle bed and packed bubble column reactors for CO2 capture via enhanced weathering

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