Jiyeol Bae1, Suho Kim2, Soyoung Baek This email address is being protected from spambots. You need JavaScript enabled to view it.1

1 Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Korea
2 Department of Civil & Environmental Engineering, Yonsei University, Seoul 03722, Korea


Received: October 1, 2021
Revised: December 3, 2021
Accepted: January 3, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.210263  

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Cite this article:

Bae, J., Kim, S., Baek, S. (2022). Parallelly Aligned, Activated Carbon Coated Plates Operating as Adsorption Columns for Removing VOCs. Aerosol Air Qual. Res. https://doi.org/10.4209/aaqr.210263


HIGHLIGHTS

  • Activated carbon (AC) immobilization technology without pore-clogging was developed.
  • A parallel-aligned AC-coated plate system was developed for BTEX removal.
  • The developed process has significant BTEX removal efficiency and high air permeability.
  • A plate-type AC-coated adsorption material can be easily applied and regenerated.
 

ABSTRACT


A semi‒pilot-scale adsorption reactor was fabricated to remove a volatile organic compound (VOC) gases mixture (BTEX). Activated carbon (AC) was immobilized by coating it on stainless steel plates using a polyvinyl acetate (PVA) binder, and the open-pore structure was maintained after the coating process. Parallelly aligned plates coated with AC minimized the decrease in pressure by inducing smooth fluid flow and maintained a high removal efficiency even at a high linear velocity. The order of the capacities for adsorption was: xylene > ethyl benzene > toluene > benzene, which was due to their differences in hydrophobicity and molecular weight. The adsorption-desorption process was performed for five successive cycles. The efficiency of removal was evidently the same for all cycles, which makes this reactor a sustainable one. 


Keywords: Activate carbon coated plate (ACP), Immobilization of powder type adsorbent, BTEX mixed gases adsorption, Adsorption and desorption, van der Waals force




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