Adsorption behaviour of polar solvent and water vapours on Sorbonorit B4 activated carbon

• Autorzy: Downarowicz Dorota , Gabruś Elżbieta

Identyfikatory

DOI

10.2478/pjct-2023-0035

• Języki publikacji: EN

Abstrakty

EN

In this work, the affinity of the heterogeneous Sorbonorit B4 (SB4) activated carbon toward methyl ethyl ketone (MEK), isopropyl alcohol (IPA), n-propyl alcohol (NPA) and isobutyl alcohol (IBA), and water vapours was examined. Adsorption equilibrium measurements demonstrate a higher adsorption capacity of water vapour than organic compounds at relative pressures above 0.4. The adsorption capacities of SB4 at the same vapor pressure followed the order: NPA> IPA> MEK> IBA. The Langmuir, Dubinin-Radushkevich, Dubinin-Astakhov, and Toth isotherm models were chosen to describe experimental results. Based on the multi-temperature isotherms, the values of the isosteric heat of adsorption were determined for various adsorbate loading. The results indicate a strong influence of VOC molecule structures and the surface heterogeneity of SB4 on the adsorption efficiency. For IPA-SB4 pair, the maximum temperature rise in a fixed-bed bed in the adsorption process and the energy requirement for regeneration were calculated and experimentally verified.

Słowa kluczowe

EN

adsorption; activated carbon; isotherms; isosteric heat; column studies

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2023
• Tom: Vol. 25, nr 4
• Strony: 28--35
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wz.

Twórcy

autor

Downarowicz Dorota

• West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering Szczecin, Poland

autor

Gabruś Elżbieta

• West Pomeranian University of Technology in Szczecin, Faculty of Chemical Technology and Engineering Szczecin, Poland

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).