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Received February 24, 2006
Accepted May 4, 2006
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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
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Comparison of vapor adsorption characteristics of acetone and toluene based on polarity in activated carbon fixed-bed reactor
Division of Applied Chemical Engineering, Pukyong National University, Busan 608-739, Korea
shlee@pknu.ac.kr
Korean Journal of Chemical Engineering, September 2006, 23(5), 773-778(6), 10.1007/BF02705926
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Abstract
Adsorption characteristics according to polarity of acetone and toluene vapors on coconut based activated carbon were investigated by using a fixed bed reactor. Single vapor and binary vapor adsorption of acetone and toluene were conducted. In the single vapor system, the equilibrium adsorption capacity of toluene vapor on activated carbon was five times higher than that of acetone vapor because of polarity difference between adsorbent and adsorbate. The breakthrough curve of acetone vapor in the binary vapor was quite different from that of single acetone vapor. Acetone adsorbed in the binary vapor was substituted with toluene due to the affinity difference during adsorption process and its outlet concentration increased to 1.6 times than inlet concentration. The temperature changes in activated carbon bed during adsorption of acetone vapor and toluene vapor occurred in the time ranges of 10-30 min. The temperature change for acetone vapor adsorption was about 3 ℃; however, that for toluene vapor adsorption was increased to 33 ℃ maximally.
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