A novel (CaO/CeO2)@CeO2 composite adsorbent based on microinjection titration-calcination strategy for CO2 adsorption

Wu, Jialin; Li, Xuan; Zhang, Rumeng; Si, Huayan; Wu, Zhaojun

doi:10.1016/j.cej.2022.140485

Cited by 8 publications

(1 citation statement)

References 76 publications

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“…As shown in Figure 5, all the Ni/CaO composite exhibits rapid CO 2 adsorption in the first stage and slow CO 2 adsorption in the second stage, similar to the CaO-based CO 2 adsorbents. 50,51 When the temperature is 500 °C, the CO 2 capture capacity of the 10Ni/2−1CaO, 30Ni/2−1CaO, 50Ni/2− 1CaO, 30Ni/3−1CaO, and BM−CaO is 0.15, 0.21, 0.19, 0.19, and 0.13 g CO 2 /g CaO, proving that Ni mixing/doping can improve the CO 2 capture properties of CaO (Figure 5). As the adsorption temperature is increased, the CO 2 adsorption rate and capacity of the four Ni/CaO composites continue to grow.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

et al. 2023

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Storing and hydrogenating CO 2 to CH 4 is an efficient solution to alleviate the greenhouse effect and energy shortage. This work demonstrated that the CaO-captured CO 2 could be selectively converted to CH 4 by Ni-and hydrogenassisted calcium looping (CaL) processes in a batch reactor. The Ni/CaO composite was first synthesized in one step at room temperature by calcium-induced hydrogenation of Ni-mixed calcium carbonate without the use of any solvent and CO 2 emission. The CO 2 capture properties over the Ni/CaO composite and the methanation properties of the Ni/CaCO 3 composite produced after CO 2 capture were then studied in a batch reactor. It was proved that the CO 2 capture properties of CaO can be improved, the CaO recovering temperature can be significantly lowered, and valuable CH 4 can be selectively produced by Ni-and hydrogen-assisted calcium looping processes at moderate/high temperature. The 68.58% methane yield and 100% methane selectivity were achieved under relatively mild conditions. After five Ni-and hydrogen-assisted CaL processes, the methane yield still reaches 45%. This study offers a novel energy-saving CaL process, which can be utilized for facile and selective conversion of the CaO-captured CO 2 to CH 4 .

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Section: ■ Results and Discussionmentioning

confidence: 99%

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

et al. 2023

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Integrated Carbon Dioxide Capture and Utilization for the Production of CH₄, Syngas and Olefins over Dual‐Function Materials

Li,

He,

2024

ChemCatChem

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The massive emission of carbon dioxide produces the greenhouse effect and poses a threat to the survival of modern civilization. The search for new carbon management strategies has been at the forefront of scientific research over the past few decades. Integrated carbon dioxide capture and utilization (ICCU), which aims to capture CO2 and convert it in situ into high value‐added products or fuels, is considered to be more attractive and innovative than alternative strategies. This paper introduces the adsorption capacity and characteristics of solid sorbents at different operating temperatures. On this basis, the recent research on ICCU technology combined with methanation, the reverse water‐gas shift reaction, dry reforming of alkanes and dehydrogenation of alkanes over novel dual function materials is presented, and the development direction and future prospects of ICCU are discussed.

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MCM-41 supported quaternary ammonium ionic liquids as an effective heterogeneous catalyst for CO2 cycloaddition reaction

Lu,

Wang,

et al. 2024

J Porous Mater

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A novel (CaO/CeO2)@CeO2 composite adsorbent based on microinjection titration-calcination strategy for CO2 adsorption

Cited by 8 publications

References 76 publications

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Integrated Carbon Dioxide Capture and Utilization for the Production of CH₄, Syngas and Olefins over Dual‐Function Materials

MCM-41 supported quaternary ammonium ionic liquids as an effective heterogeneous catalyst for CO2 cycloaddition reaction

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A novel (CaO/CeO2)@CeO2 composite adsorbent based on microinjection titration-calcination strategy for CO2 adsorption

Cited by 8 publications

References 76 publications

Selective Conversion of the CaO-Captured CO2 to CH4 by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Selective Conversion of the CaO-Captured CO2 to CH4 by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Integrated Carbon Dioxide Capture and Utilization for the Production of CH4, Syngas and Olefins over Dual‐Function Materials

MCM-41 supported quaternary ammonium ionic liquids as an effective heterogeneous catalyst for CO2 cycloaddition reaction

Contact Info

Product

Resources

About

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Selective Conversion of the CaO-Captured CO₂ to CH₄ by Ni- and Hydrogen-Assisted Calcium Looping Processes in a Batch Reactor

Integrated Carbon Dioxide Capture and Utilization for the Production of CH₄, Syngas and Olefins over Dual‐Function Materials