Open Access
ARTICLE
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: ; Hua Zhang. 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
Received 01 November 2022; Accepted 23 December 2022; Issue published 05 June 2023
Abstract
A hybrid system combined with a non-contact membrane and bubbling absorption is proposed to capture CO
2
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 H
2O 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 CO
2 through the membrane is still higher than 7.0 × 10
−3 mol/m
2
s (20% CO
2 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.
Keywords
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.