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Open AccessArticle

CO2 and CH4 Adsorption Behavior of Biomass-Based Activated Carbons

1
CNRS/Total/Univ Pau & Pays Adour/ E2S UPPA, Laboratoire des Fluides Complexes et Leurs Reservoirs-IPRA, UMRS5150, 64000 Pau, France
2
Univ Pau & Pays Adour/ E2S UPPA, Laboratoire de Thermique, Energetique et Procedes-IPRA, EA1932, 64000 Pau, France
3
Institut de Sciences des Matériaux de Mulhouse, UMR 7661 CNRS, 15 rue Jean Starcky, 68057 Mulhouse, France
*
Author to whom correspondence should be addressed.
Energies 2018, 11(11), 3136; https://doi.org/10.3390/en11113136
Received: 25 July 2018 / Revised: 5 November 2018 / Accepted: 8 November 2018 / Published: 13 November 2018
(This article belongs to the Special Issue Biomass Chars: Elaboration, Characterization and Applications Ⅱ)
The aim of the present work is to study the effect of different activation methods for the production of a biomass-based activated carbon on the CO 2 and CH 4 adsorption. The influence of the activation method on the adsorption uptake was studied using three activated carbons obtained by different activation methods (H 3 PO 4 chemical activation and H 2 O and CO 2 physical activation) of olive stones. Methane and carbon dioxide pure gas adsorption experiments were carried out at two working temperatures (303.15 and 323.15 K). The influence of the activation method on the adsorption uptake was studied in terms of both textural properties and surface chemistry. For the three adsorbents, the CO 2 adsorption was more important than that of CH 4 . The chemically-activated carbon presented a higher specific surface area and micropore volume, which led to a higher adsorption capacity of both CO 2 and CH 4 . For methane adsorption, the presence of mesopores facilitated the diffusion of the gas molecules into the micropores. In the case of carbon dioxide adsorption, the presence of more oxygen groups on the water vapor-activated carbon enhanced its adsorption capacity. View Full-Text
Keywords: CO2 adsorption; CH4 adsorption; biomass; activated carbon CO2 adsorption; CH4 adsorption; biomass; activated carbon
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MDPI and ACS Style

Peredo-Mancilla, D.; Ghouma, I.; Hort, C.; Ghimbeu, C.M.; Jeguirim, M.; Bessieres, D. CO2 and CH4 Adsorption Behavior of Biomass-Based Activated Carbons. Energies 2018, 11, 3136.

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