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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received July 2, 2009
Accepted August 19, 2009

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Breakthrough data analysis of adsorption of volatile organic compounds on granular activated carbon

Kwang-Joong Oh Dae-Won Park Seong-Soo Kim¹ Sang-Wook Park^†

Division of Chemical Engineering, Pusan National University, Busan 609-735, Korea ¹School of Environmental Science, Catholic University of Pusan, Busan 609-757, Korea

swpark@pusan.ac.kr

Korean Journal of Chemical Engineering, February 2010, 27(2), 632-638(7), 10.1007/s11814-010-0079-9

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Abstract

Volatile Organic Compounds (VOCs) such as methanol, ethanol, methyl ethyl keton, benzene, n-propanol, toluene, and o-xylene were adsorbed in a laboratory-scale packed-bed adsorber using granular activated carbon (GAC) at 101.3 kPa. The adsorber was operated batchwise to obtain the breakthrough curves of VOCs under the adsorption conditions such as adsorption temperatures (298-323 K), flow rates of nitrogen (60×10^(-6)-150×10^(-6)m3/min), GAC amount_x000D_ of 0.002 kg, and concentration of VOCs (3,000-6,000 ppmv). The adsorption kinetics was obtained by fitting the experimental breakthrough data to the deactivation model, combining the adsorption of VOCs and the deactivation of GAC. The adsorption isotherm, and adsorbed amount and adsorption heat of VOCs were obtained using the breakthrough curve: the former for comparison with the conventional isotherm models, the latter for correlation with the physical properties of VOCs.

Keywords

Adsorption VOCs Activated Carbon Breakthrough Curve Deactivation Model

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