VOCs adsorption on activated carbon with initial water vapor contents: Adsorption mechanism and modified characteristic curves.
Carbon
Characteristic adsorption curves
Initial water vapor
LSER
Volatile organic compounds
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
20 Aug 2020
20 Aug 2020
Historique:
received:
13
03
2020
revised:
26
04
2020
accepted:
01
05
2020
pubmed:
14
5
2020
medline:
14
5
2020
entrez:
14
5
2020
Statut:
ppublish
Résumé
In practice, regeneration of adsorbent is always achieved by heating with hot steam, leaving some water in the adsorbent bed, which may negatively affect the VOCs adsorption. In this research, adsorption isotherms of 12 VOCs (ketones, alkanes, alcohols, halohydrocarbons, and aromatic hydrocarbons) on granular activated carbon (GAC) with different initial water contents (IWC) were conducted. Adsorption interactions between VOCs and GAC at different IWC were investigated using the combination of Linear Solvation Energy Relationship (LSER) and Dubinin-Radushkevich (DR) equation. The results showed that initial water vapor could reduce adsorption capacities and partition coefficient of 12 VOCs, especially at low VOCs concentration. According to LSER, electron acceptor ability (∑β
Identifiants
pubmed: 32402907
pii: S0048-9697(20)32701-7
doi: 10.1016/j.scitotenv.2020.139184
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
139184Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.