Chemical looping CO2 capture and in-situ conversion as a promising platform for green and low-carbon industry transition: Review and perspective

Dual Functional Materials: At the Interface of Catalysis and Separations

“…products. 6,7 Importantly, the thermodynamics for ICCU-related reactions are no different than those of the overall CO 2 hydrogenation reactions. The key distinction between the two processes is that CO 2 is reactively separated from flue gas in one step instead of separating and reacting CO 2 over two different materials in separate locations.…”

“…(2) Inert purge: An inert gas is flowed over the DFM to remove O 2 from the system, an important consideration for safe operation. (3) Reactive separation: Hydrogen is introduced to react with the bound CO 2 to facilitate desorption and produce value-added products. , Importantly, the thermodynamics for ICCU-related reactions are no different than those of the overall CO 2 hydrogenation reactions. The key distinction between the two processes is that CO 2 is reactively separated from flue gas in one step instead of separating and reacting CO 2 over two different materials in separate locations.…”

Redox and melting characteristics of Mn-based ores for high-temperature thermochemical energy storage

“…The present global energy consumption is mainly based on the use of fossil fuels, which has contributed to many environmental problems. Renewable energy sources are considered attractive alternatives to replace fossil fuels because of their promising social, environmental, and economic benefits (Bilgen et al, 2004;Jin et al, 2023;Jin et al, 2024;Ouyang et al, 2024). The British Petroleum (BP) Company predicted that the consumption percentage of renewable energy sources will increase from 4% of its total primary energy consumption in 2016 to 14% in 2040 (British Petroleum Company, 2019).…”

Integrated CO2 Capture and Utilization by Combining Calcium Looping with CH4 Reforming Processes: A Thermodynamic and Exergetic Approach

“…The potential of reducing the temperature of calcination has triggered the interest for various integrated CO 2 capture and utilization processes, , while calcium looping coupled with dry reforming of methane (CaL-DRM) has already been widely studied and applied for postcombustion CO 2 capture applications. ,− A major issue of this process is the carbon deposition in the reactive calcination stage. − Although carbon can be gasified by CO 2 in the subsequent carbonation stage, the release of CO with the CO 2 -stripped flue gas raises environmental concerns, , while CO 2 cannot completely gasify all carbon . Another problem is related to the partial oxidation of the Ni surface during exposure under CO 2 during carbonation. , Even though the formed NiO can be reduced from CH 4 in the calcination stage, the inadequate number of Ni active sites in the beginning of the stage can affect the syngas quality.…”

“…The potential of reducing the temperature of calcination has triggered the interest for various integrated CO 2 capture and utilization processes, 11 , 12 while calcium looping coupled with dry reforming of methane (CaL-DRM) has already been widely studied and applied for postcombustion CO 2 capture applications. 10 , 13 − 17 A major issue of this process is the carbon deposition in the reactive calcination stage.…”