Preprint Article Version 1 This version is not peer-reviewed

CO2 and CH4 Adsorption Behavior of Biomass Based Activated Carbons

Version 1 : Received: 25 July 2018 / Approved: 25 July 2018 / Online: 25 July 2018 (15:29:22 CEST)

A peer-reviewed article of this Preprint also exists.

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

Journal reference: Energies 2018, 11, 3136
DOI: 10.3390/en11113136

Abstract

The aim of the present study is to provide new insights into the CO2 and CH4 adsorption using a set of biomass-based activated carbons obtained by physical and chemical activation of olive-stones. The adsorption behavior is analyzed by means of pure gas adsorption isotherms up to 3.2 MPa at two temperatures (303.15 and 323.15 K).The influence of the activation method on the adsorption uptake is studied in terms of both textural properties and surface chemistry. For three activated carbons the CO2 adsorption was more important than that of CH4. The chemically activation resulted in higher BET surface area and micropore volume that lead to higher adsorption for both CO2 and CH4. For methane the presence of mesopores seems to facilitate the access of the gas molecules into the micropores while for carbon dioxide, the presence of oxygen groups enhanced the adsorption capacity.

Subject Areas

CO2 adsorption, CH4 adsorption, biomass, activated carbon.

Comments (1)

Comment 1
Received: 26 July 2018
Commenter: Edmond Sanganyado (Click to see Publons profile: )
The commenter has declared there is no conflict of interests.
Comment: The authors investigated the adsorption of carbon dioxide and methane on to a biosorbent as a method of mitigating greenhouse gas discharge. Factors influencing adsorption capacities where investigated. However, considering numerous studies on adsorption properties of carbonized/activated olive stones have been conducted, the authors may want to demonstrate the novelty of their study.

An important reference to consider will be:

Iley, M., Marsh, H., & Reinoso, F. R. (1973). The adsorptive properties of carbonised olive stones. Carbon, 11(6), 633-638.
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