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Adsorbent screening for airborne BTEX analysis and removal

Abstract : Adsorption is a commonly used technique for removal and analysis of gaseous pollutants due to its cost efficiency at low concentrations. In this work, single and competitive BTEX adsorptions were studied on three non-porous, mesoporous and microporous commercial adsorbents, namely Carbopack® B, SBA-16 and HKUST-1, respectively. For all these materials, C8 aromatics were preferentially adsorbed, preventing in some cases the adsorption of the most volatile species, i.e. benzene and toluene. This behavior indicates that the competition phenomenon is closely related to the strength of adsorbate-adsorbent interactions. Activation energies for the desorption process were determined to be 33.8 and 33.7 and 35.9 kJ/mol for Carbopack® B, SBA-16 and HKUST-1, respectively, demonstrating that
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Submitted on : Wednesday, December 9, 2020 - 6:55:48 PM
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Adsorbent screening for BTEX a...
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Irene Lara-Ibeas, Cristina Megias-Sayago, Alberto Rodríguez-Cuevas, Rubén Ocampo-Torres, Benoît Louis, et al.. Adsorbent screening for airborne BTEX analysis and removal. Journal of Environmental Chemical Engineering, Elsevier, 2020, 8 (2), pp.103563. ⟨10.1016/j.jece.2019.103563⟩. ⟨hal-02379608⟩



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