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Permanent link (DOI): https://doi.org/10.7939/R3KK94K15

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Effect of fluidization on adsorption of volatile organic compounds on beaded activated carbon Open Access

Descriptions

Other title
Subject/Keyword
Volatile organic organic
Activated carbon
Irreversible adsorption
Fluidized bed adsorption
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Kamravaei, Samineh
Supervisor and department
Hashisho, Zaher (Civil and Environmental Engineering)
Examining committee member and department
Hashisho, Zaher (Civil and Environmental Engineering)
Liu, Yang (Civil and Environmental Engineering)
Kuznicki, Steven (Chemical and Materials Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Environmental Engineering
Date accepted
2014-01-17T10:17:24Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
Adsorption on activated carbon is a widely used technique for controlling emissions of volatile organic compounds (VOCs) from automotive painting booths; however, irreversible adsorption is a common challenge in this process. This research investigates the effect of adsorbent bed configuration on adsorption of VOCs on beaded activated carbon (BAC). Fixed and fluidized bed adsorption of a single compound (1, 2, 4 – trimethylbenzene) and a mixture of nine organic compounds representing different organic groups were accomplished in five consecutive cycles. Adsorption tests were completed either in partial or full loading of the adsorbent. All regeneration cycles were completed in fixed bed arrangement. The results demonstrated similar adsorption capacities obtained in both configurations. However, 30 – 42% lower heel formation was found using fluidized bed than in fixed bed in case of the VOCs mixture. Thermo – gravimetric analysis confirmed less organic accumulation on BAC after regeneration for the bed loaded with the VOCs mixture in fluidized bed configuration. The lower irreversible adsorption obtained using fluidized bed adsorption could be due to improved mass transfer and more complete utilization of BAC’s available pore volume in the fluidized bed, and non – uniform adsorbate distribution on the BAC, and displacement of lighter compounds with heavier ones in the fixed bed.
Language
English
DOI
doi:10.7939/R3KK94K15
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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