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KMID : 1024520140230061151
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Journal of the Environmental Sciences
2014 Volume.23 No. 6 p.1151 ~ p.1156
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Effect of Methyl Ethyl Ketone and Ethyl Acetate Vapor on Photocatalytic Decomposition of n-Pentane Vapor
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Kam Sang-Kyu
Jeon Jin-Wo
Lee Min-Gyu
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Abstract
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The photocatalytic decomposition characteristics of single n-pentane, n-pentane mixed with methyl ethyl ketone
(MEK), and n-pentane mixed with ethyl acetate (EA) by cylindrical UV reactor installed with TiO2-coated perforated
plane were studied. The effects of the residence time, the inlet gas concentration, and the oxygen concentration were
investigated. The removal efficiency of n-pentane was increased with increasing the residence time and the oxygen
concentration, but decreased with increasing the inlet concentration of n-pentane. The photocatalytic decomposition
rates of single n-pentane, n-pentane mixed with MEK, and n-pentane mixed with EA fitted well on Langmuir-Hinshelwood kinetics equation. The maximum elimination capacities of single n-pentane, n-pentane mixed with MEK, and n-pentane mixed with EA were obtained to be 465 g/m3?day, 217 g/m3?day, and 320 g/m3?day,respectively. The presence of coexisting MEK and EA vapor had a negative effect on the photocatalytic decomposition of n-pentane and the negative effect of MEK was higher than that of EA.
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KEYWORD
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Photocatalytic decomposition, alkane, ketone, acetate, Elimination capacity
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