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Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption

Yongde Luo, Jiang Jin*, Hua Zhang*

College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China

* Corresponding Authors: Jiang Jin. Email: email; Hua Zhang. Email: email

(This article belongs to this Special Issue: Porous Materials for Sustainable Development)

Journal of Renewable Materials 2023, 11(7), 3143-3153. https://doi.org/10.32604/jrm.2023.027396

Abstract

A hybrid system combined with a non-contact membrane and bubbling absorption is proposed to capture CO2 from flue gas. The non-contact way of membrane and liquid absorbent effectively avoids the reduction of gas diffusion flux through the membrane. High-porosity ceramic membranes in hybrid systems are used for gas-solid separation in fuel gas treatment. Due to the high content of H2O and cement dust in the flue gas of the cement plant, the membrane is hydrophobically modified by polytetrafluoroethylene (PTFE) to improve its anti-water, anti-fouling, and self-cleaning performances. The results show that the diffusion flux of CO2 through the membrane is still higher than 7.0 × 10−3 mol/m2 s (20% CO2 concentration) even under the influence of water and cement dust. In addition, slaked lime selected as the absorbent is cheap and the product after bubbling absorption is nano-scale light calcium carbonate. To sum up, the hybrid system combining non-contact membrane and bubbling absorption is expected to be used to capture carbon dioxide from the flue gas of the cement plant.

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Cite This Article

Luo, Y., Jin, J., Zhang, H. (2023). Carbon Capture from Flue Gas Based on the Combination of Non-Contact Hydrophobic Porous Ceramic Membrane and Bubbling Absorption. Journal of Renewable Materials, 11(7), 3143–3153.



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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