Integration of solid acid catalyst and ceramic membrane to boost amine-based CO2 desorption

Amine-based absorption has matured into an established technology for CO2 capture from fossil fuel power plants. However, high energy consumption for CO2 desorption remains a challenge. Herein, we report a promising integration of a solid acid catalyst (i.e., HZSM-5) filled into a vapor permeable-li...

Full description

Saved in:
Bibliographic Details
Published in:Energy (Oxford) 2023-07, Vol.274, p.127329, Article 127329
Main Authors: Guo, Yunzhao, Zhang, Huiping, Fu, Kaiyun, Chen, Xianfu, Qiu, Minghui, Fan, Yiqun
Format: Article
Language:English
Subjects:
absorption
Amine solvent
carbon dioxide
catalysts
Catalytic CO2 desorption
Ceramic membrane
ceramics
CO2 capture
desorption
energy
ethanolamine
fossil fuels
liquids
Membrane contactor
Solid acid catalyst
temperature
vapors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Amine-based absorption has matured into an established technology for CO2 capture from fossil fuel power plants. However, high energy consumption for CO2 desorption remains a challenge. Herein, we report a promising integration of a solid acid catalyst (i.e., HZSM-5) filled into a vapor permeable-liquid impermeable tubular α-Al2O3 ceramic membrane for boosting CO2 desorption from aqueous monoethanolamine (MEA) solution. Experiments were conducted to investigate the effects of catalyst weight, temperature, pressure, liquid flow rate and CO2 loading on CO2 desorption rate and energy consumption. Furthermore, 60 runs of cyclic tests were carried out to assess the stable CO2 desorption rate and the thermal and chemical stability of both the HZSM-5 catalyst and the α-Al2O3 membrane. The experiment results demonstrated that the HZSM-5 filled α-Al2O3 ceramic membrane contactor exhibited high CO2 desorption performance and long-term stability. It is anticipated that integration of solid acid catalyst with porous ceramic membrane holds great promise in practical application to boost the CO2 desorption rate and reduce the energy requirement. •Integration of catalyst and membrane was proposed for boosting CO2 desorption.•Addition of the HZSM-5 catalyst enabled great improvement of CO2 desorption rate.•The catalyst-filled ceramic membrane exhibited competitive desorption performance.•The HZSM-5 catalyst and the α-Al2O3 membrane were stable for CO2 desorption.
ISSN:0360-5442
DOI:10.1016/j.energy.2023.127329