The Potential of Activated Carbon Made of Agro-Industrial Residues in NO x Immissions Abatement

Imen Ghouma, Mejdi Jeguirim, Uta Sager, Lionel Limousy, Simona Bennici, Eckhard Däuber, Christof Asbach, Roman Ligotski, Frank Schmidt and Abdelmottaleb Ouederni
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Imen Ghouma: Institut de Sciences des Matériaux de Mulhouse, Université de Haute-Alsace, 15 Rue Jean Starcky, F-68057 Mulhouse, France
Mejdi Jeguirim: Institut de Sciences des Matériaux de Mulhouse, Université de Haute-Alsace, 15 Rue Jean Starcky, F-68057 Mulhouse, France
Uta Sager: Institut für Energie-und Umwelttechnik e.V., Bliersheimer Str. 58-60, D-47229 Duisburg, Germany
Lionel Limousy: Institut de Sciences des Matériaux de Mulhouse, Université de Haute-Alsace, 15 Rue Jean Starcky, F-68057 Mulhouse, France
Simona Bennici: Institut de Sciences des Matériaux de Mulhouse, Université de Haute-Alsace, 15 Rue Jean Starcky, F-68057 Mulhouse, France
Eckhard Däuber: Institut für Energie-und Umwelttechnik e.V., Bliersheimer Str. 58-60, D-47229 Duisburg, Germany
Christof Asbach: Institut für Energie-und Umwelttechnik e.V., Bliersheimer Str. 58-60, D-47229 Duisburg, Germany
Roman Ligotski: Nanopartikel Prozesstechnik, Universität Duisburg-Essen, Lotharstr. 1, D-47057 Duisburg, Germany
Frank Schmidt: Nanopartikel Prozesstechnik, Universität Duisburg-Essen, Lotharstr. 1, D-47057 Duisburg, Germany
Abdelmottaleb Ouederni: Department of Chemical Engineering, National School of Engineers (ENIG), University of Gabes, Avenue Omar Ibn El Khattab, Gabes 6029, Tunisia

Energies, 2017, vol. 10, issue 10, 1-15

Abstract: The treatment of NO x from automotive gas exhaust has been widely studied, however the presence of low concentrations of NO x in confined areas is still under investigation. As an example, the concentration of NO 2 can approximate 0.15 ppmv inside vehicles when people are driving on highways. This interior pollution becomes an environmental problem and a health problem. In the present work, the abatement of NO 2 immission is studied at room temperature. Three activated carbons (ACs) prepared by physical (CO 2 or H 2 O) or chemical activation (H 3 PO 4 ) are tested as adsorbents. The novelty of this work consists in studying the adsorption of NO 2 at low concentrations that approach real life immission concentrations and is experimentally realizable. The ACs present different structural and textural properties as well as functional surface groups, which induce different affinities with NO 2 . The AC prepared using water vapor activation presents the best adsorption capacity, which may originate from a more basic surface. The presence of a mesoporosity may also influence the diffusion of NO 2 inside the carbon matrix. The high reduction activity of the AC prepared from H 3 PO 4 activation is explained by the important concentration of acidic groups on its surface.

Keywords: activated carbon; NO 2 adsorption; ambient temperature; low NO 2 concentrations; textural properties-surface chemistry characterization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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