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Preparation and Evaluation of a Coconut Shell-Based Activated Carbon for CO2/CH4 Separation

AutorAbdeljaoued, Amna; Querejeta, Nausika; Durán, Inés; Álvarez-Gutiérrez, Noelia; Pevida, Covadonga; Chahbani, Mohamed Hachemi
Fecha de publicación3-jul-2018
EditorMultidisciplinary Digital Publishing Institute
CitaciónEnergies 11 (7): 1748 (2018)
ResumenBiomass is a widely distributed and renewable source of carbon. The main objective of this work is to produce an activated carbon from coconut shells with suitable characteristics to separate CO<sub>2</sub> from biogas. The textural characterization of the adsorbent has been determined. Pure component adsorption isotherms of CO<sub>2</sub> and CH<sub>4</sub> at 30, 50 and 70 °C have been measured. The results reveal that the activated carbon had high CO<sub>2</sub> adsorption capacity. Equilibrium of adsorption of CO<sub>2</sub> and CH<sub>4</sub> adsorption on the produced activated carbon reached 8.36 mmol/g and 4.63 mmol/g, respectively, at 30 °C and 10 bars. Moreover, the performance of the produced activated carbon, as a potential adsorbent for CO<sub>2</sub> capture from a CO<sub>2</sub>/CH<sub>4</sub> gas mixture, has been evaluated under dynamic conditions in a dedicated fixed-bed setup. The CO<sub>2</sub> and CH<sub>4</sub> adsorption capacities of the produced activated carbon are estimated to be 1.86 and 0.52 mol/kg, respectively, at 30 °C and 1 bar.
URIhttp://hdl.handle.net/10261/167937
Identificadoresdoi: 10.3390/en11071748
Aparece en las colecciones: Colección MDPI
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