Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 7, Issue 3, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2019.103131
Keywords
VOCs adsorption; Realistic concentration; HKUST-1; Breakthrough curve; Mixture of pollutant; Humidity
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Funding
- CEA-Liten Institute, France
- SAFRAN Filtration Systems, France
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In this study, HKUST-1 framework utilization as an adsorbent was characterized in realistic indoor air conditions. Adsorption capacities and breakthrough behaviors of this material were studied for low concentration gas mixtures with controlled relative humidity. Results demonstrate high adsorption capacities (23.8, 14.7, 16.5, 5.0, and 1.4% wt for the respective mono-pollutant gases: toluene, o-xylene, ethanol, acetone and acetaldehyde). The adsorption capacities and breakthrough curves of binary and five gases mixtures give information about the competitions between pollutants and show that the studied volatile organic compounds (VOCs) are adsorbed in the order of: o-Xylene > Acetone > Toluene. Cold desorption tests were also conducted and showed a 50% decrease of the adsorption capacity after three cycles.
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