Back to Search Start Over

CO2 Capture Using Deep Eutectic Solvents Integrated with Microalgal Fixation

Authors :
Eliza Gabriela Brettfeld
Daria Gabriela Popa
Tănase Dobre
Corina Ioana Moga
Diana Constantinescu-Aruxandei
Florin Oancea
Source :
Clean Technologies, Vol 6, Iss 1, Pp 32-48 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

In this study, we investigated the use of functionalized deep eutectic solvents (DESs) as a medium for CO2 capture integrated with CO2 desorption and biofixation in microalgal culture, as an approach for carbon capture, utilization, and storage (CCUS). The newly devised DES formulation—comprising choline chloride, ethylene glycol, and monoethanolamine—demonstrated a significant advancement in CO2 absorption capacity compared with conventional solvents. Effective CO2 desorption from the solvent was also achieved, recovering nearly 90% of the captured CO2. We then examined the application of the functionalized DESs to promote microalgal cultivation using a Chlorella sp. strain. The experimental results indicated that microalgae exposed to DES-desorbed CO2 exhibited heightened growth rates and enhanced biomass production, signifying the potential of DES-driven CO2 capture for sustainable microalgal biomass cultivation. This research contributes to the growing field of CCUS strategies, offering an avenue for efficient CO2 capture and conversion into valuable biomasses, thereby contributing to both environmental sustainability and bioresource use.

Details

Language :
English
ISSN :
25718797
Volume :
6
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Clean Technologies
Publication Type :
Academic Journal
Accession number :
edsdoj.29f3b69ebeb4a899ecbb576bdae4568
Document Type :
article
Full Text :
https://doi.org/10.3390/cleantechnol6010003