| Issue |
E3S Web Conf.
Volume 697, 2026
The 5th International Conference on Renewable & Sustainable Energies and Green Processes (RSEGP2025)
|
|
|---|---|---|
| Article Number | 00021 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/e3sconf/202669700021 | |
| Published online | 13 March 2026 | |
CO2 capture on biomass-derived activated carbon: Prolonged cyclic operation
Chemical Engineering and industrial process Laboratory, Gabes engineering school, Gabes University, Gabes, 6029, Tunisia
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
Cyclic carbon dioxide CO2 adsorption-desorption experiments were conducted at ~295 K and a maximum pressure of 10 bar using laboratory-synthesized activated carbon pellets derived from almond shells. Over 20 cycles, the CO2 adsorption equilibrium on these CA-Am-Pas pellets demonstrated stability from the 9th cycle onward, with adsorption efficiencies ranging from 1 to 0.8 and desorption yields around 40%. Equilibrium modelling across all cycles consistently showed the Freundlich isotherm as the best fit, achieving regression coefficients very close to 1.
© The Authors, published by EDP Sciences, 2026
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