Abstract
This work was funded by the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), Project CTQ2016-76231-C2-(AEI/FEDER, UE) and Project PID2019-108136RB-C31). J.M.V. thanks the Concepcion Arenal postgraduate research grant from the University of Cantabria.
Highlights
The improvement and promotion of carbon capture technologies are required to reduce the globally rising CO2 emissions, which is one of the most harmful gases associated with global warming and other negative climatic effects.[1]
Common strategies rely on carbon capture and sequestration (CCS), which is focused on long-term underground CO2 storage in aquifers or other geological formations,[2] and carbon capture and utilization (CCU), which produces products with a high value added, such as chemicals or fuels, from CO2.3 These are widely considered for mitigating the ongoing rise in levels of atmospheric CO2 attributed to increasing industrial demands of fossil fuel sources due to the increase in population and economic growth.[4]
In the hollow fiber membrane contactors (HFMCs) stripping process, the wetting phenomena are the main challenge to overcome since the reduced gas phase operation pressure increases the mass transfer resistance via solvent penetration inside the pores of the membrane, which leads to a sharp drop in the regeneration performance
Summary
1. The state-of-art hollow fiber membrane contactors in post-combustion CO2 desorption are provided. 2. An overview of the developments of membranes and absorbents in CO2 desorption is presented. 3. The main issues in commercializing membrane contactors (wetting and fouling) are analyzed. 4. A clear comparison between CO2 desorption models developed in the literature is presented. KEYWORDS Post-combustion carbon capture, CO2 desorption, solvent regeneration, hollow fiber membrane contactor
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