Synthetic solid oxide sorbents for CO<sub>2</sub> capture: state-of-the art and future perspectives

Chang, Ribooga; Wu, Xianyue; Cheung, Ocean; Liu, Wen

doi:10.1039/d1ta07697c

Cited by 45 publications

(29 citation statements)

References 169 publications

(227 reference statements)

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“…Various materials for post-combustion carbon capture have been investigated as potential routes for decarbonization of hard-to-abate sectors. This includes ionic liquids, MOFs, , amine-functionalized solid adsorbents, and various metal oxides. , Among these technologies, calcium looping (CaL) is a promising method for integration with fossil fuel power plants and heavy industries, including cement and steel . The calcium looping process exploits the reversible reaction between calcium oxide and carbon dioxide to produce calcium carbonate according to the reaction CaO (s) + CO 2(g) ⇌ CaCO 3(s) .…”

Section: Introductionmentioning

confidence: 99%

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture

Hashemi

Karami

Mahinpey

2022

Ind. Eng. Chem. Res.

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Calcium looping is a promising route for decarbonization of carbon-intensive fossil fuel-reliant industries. Development of sorbents with high CO 2 uptake capacity and cyclic stability is of paramount importance for commercialization of the calcium looping process. In this work, novel CaO-based sorbents stabilized with CaZrO 3 were produced using the solution combustion synthesis method. The effect of using different fuels (citric acid and β-alanine) on the physical properties and the carbon capture performance of the sorbents was investigated. Citric acidsynthesized sorbents indicated a higher surface area (30.0 m 2 /g) compared to β-alanine-derived sorbents (9.3 m 2 /g), resulting in a superior CO 2 uptake capacity. Sorbents were calcined under mild (850 °C, under 100% N 2 ) and harsh (950 °C, under ∼50% CO 2 in N 2 ) calcination conditions in 20-cycle experiments. Under harsh calcination conditions, sorbents exhibited a decreased stability over cycles due to sintering and loss of surface area at high temperatures. The CA20-1x sorbent maintained 96 and 57% of its initial uptake capacity after 20 cycles under mild and harsh calcination conditions, respectively. Sorbents were further spheronized and tested for their uptake capacity and stability. Spheronized sorbents exhibited a reduced uptake capacity under similar testing conditions due to diffusion limitations and a broader uptake rate profile. A longer carbonation time was recommended for spheronized sorbents to improve the uptake capacity.

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Section: Introductionmentioning

confidence: 99%

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture

Hashemi

Karami

Mahinpey

2022

Ind. Eng. Chem. Res.

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“…1 Very recently, in 2022, Chang et al published a comprehensive review on synthetic solid oxide sorbents for CO 2 capture, where they focus only on metal oxide sorbents, such as MgO, CaO, etc. 30 Hence, in this review, we summarize the significant work on various carbonbased nanomaterials (including doping, surface functionalization, composites, etc.) and their CO 2 capture ability.…”

Section: Introductionmentioning

confidence: 99%

Critical Review on Carbon-Based Nanomaterial for Carbon Capture: Technical Challenges, Opportunities, and Future Perspectives

Ramar¹,

Ambedkar²

2022

Energy Fuels

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In the 21st century, climate change and global warming are considered to be one of the world’s most severe and biggest environmental threats to humans. Consequently, the CO2 capture and storage technique has been a concern as a superior technique by both industrial and academic research communities, which prohibits the mixing of CO2 from point sources, such as cement plants and fossil fuel power plants, into the atmosphere. Particularly, after the United Nations Climate Change Conference in 2015, which was held in Paris, France, researchers have been vigorously focusing on the reduction of greenhouse gases. Presently, liquid amine scrubbing has been used for CO2 capture technology, while solid sorbents are used for CO2 capture technology to overcome the drawbacks associated with amine scrubbing technology. In this review, different carbon nanomaterials, such as fullerene, carbon nanotubes, graphene oxide, biochar, and activated carbon, and their derivatives for CO2 capture applications are summarized. In addition, the review covers the fundamental requirements of solid sorbents, advantages and disadvantages of other solid sorbents, and policies proposed for reducing greenhouse gas emissions by developing and developed countries, which will be highly beneficial for making future policies and fabricating low-cost CO2 sorbents. Finally, the current technical challenges and opportunities for the development of efficient and practically possible carbon-based CO2 sorbents were discussed. Furthermore, future perspectives were proposed for the development of carbonaceous porous materials in place of existing liquid amine scrubbing technology in the future.

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“…Two recently published review papers discuss the recent advances in the development and fundamental understanding of various solid oxide sorbents for carbon capture. [19,20] Among these sorbents, CaObased materials have emerged as promising sorbents owing to the abundance and low price of calcium sources, fast sorption kinetics, high-temperature operation, and synergy with various industrial processes such as cement. [21,22] Various methods have been employed by researchers to optimize and enhance the materials and process conditions of the calcium looping (CaL) process.…”

Section: Introductionmentioning

confidence: 99%

Calcium looping carbon capture: Progress and prospects

2022

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Carbon capture and utilization/storage is an integral part of a smooth transition to a net-zero energy portfolio. The distinctive advantages of the calcium looping (CaL) process, including low-cost and high-theoretical uptake capacity, make it a promising approach for the decarbonization of fossil fuel power plants and carbon-intensive industries, including cement and steel. CaL exploits the reversible reaction of CO 2 with CaO to capture and release carbon dioxide in a cyclic process. This paper reviews the fundamentals of the CaL process, the kinetics of the carbonation reaction, and extensive research on the development of sorbent materials with high durability for use in the CaL process. Various optimizing strategies for the improvement of the stability and CO 2 uptake capacity of materials are outlined. Lastly, an overview of benchand pilot-scale testing facilities around the world is provided. The characteristics, operating conditions, and the main experimental findings of the testing facilities are summarized.

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Synthetic solid oxide sorbents for CO₂ capture: state-of-the art and future perspectives

Abstract: Carbon capture is an important and effective approach to control the emission of CO2 from point sources such as fossil fuel power plants, industrial furnaces and cement plants into the...

Cited by 45 publications

References 169 publications

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture

Critical Review on Carbon-Based Nanomaterial for Carbon Capture: Technical Challenges, Opportunities, and Future Perspectives

Calcium looping carbon capture: Progress and prospects

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Synthetic solid oxide sorbents for CO2 capture: state-of-the art and future perspectives

Abstract: Carbon capture is an important and effective approach to control the emission of CO2 from point sources such as fossil fuel power plants, industrial furnaces and cement plants into the...

Cited by 45 publications

References 169 publications

CaO-Based Nanomaterials Promoted with CaZrO3 for High-Temperature Carbon Capture

CaO-Based Nanomaterials Promoted with CaZrO3 for High-Temperature Carbon Capture

Critical Review on Carbon-Based Nanomaterial for Carbon Capture: Technical Challenges, Opportunities, and Future Perspectives

Calcium looping carbon capture: Progress and prospects

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Synthetic solid oxide sorbents for CO₂ capture: state-of-the art and future perspectives

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture

CaO-Based Nanomaterials Promoted with CaZrO₃ for High-Temperature Carbon Capture