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Cited 2 time in webofscience Cited 2 time in scopus
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Thermocatalytic oxidation of a three-component mixture of volatile organic compounds by a titanium dioxide-supported platinum catalyst

Authors
Lee, Young-JaeVikrant, KumarSzulejko, Jan E.Kim, Ki-HyunDong, Fan
Issue Date
Nov-2021
Publisher
Elsevier Ltd
Keywords
Air quality management; Pollution control; Thermocatalysis; TiO2; Volatile organic compounds
Citation
Journal of Cleaner Production, v.325, pp.1 - 14
Indexed
SCIE
SCOPUS
Journal Title
Journal of Cleaner Production
Volume
325
Start Page
1
End Page
14
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140455
DOI
10.1016/j.jclepro.2021.129279
ISSN
0959-6526
Abstract
To gain a better knowledge for efficient treatment of volatile organic compounds (VOCs), a series of experiments were carried out to assess the potential of titanium dioxide (TiO2)-supported platinum (Pt) catalyst (Pt/TiO2) in low-temperature catalytic oxidation of formaldehyde (FA), acetaldehyde (AA), and toluene (T) (10–100 ppm range) both individually and as a mixture. Accordingly, 100% mineralization of FA (50–200 ppm), AA (10 ppm), and T (10 ppm) was achieved by 1%-Pt/TiO2-R (‘R’ suffix for reduction pretreatment on the catalyst) at 30, 190, and 160 °C, respectively. The carbon dioxide (CO2) yield was used to assess the extent of VOC mineralization in air (as the carrier gas at a flow rate of 0.2 L atm min ̶ 1). Their conversion efficiency was lowered with increases in the pollutant concentration or decreases in the bed mass. Furthermore, the reaction intermediates and catalytic pathways were assessed based on in-situ diffuse reflectance infrared Fourier transform spectroscopy. This study offers valuable insights into the interactive roles between process variables in the low-temperature thermocatalytic oxidation of single and/or multi-component gaseous VOC systems and into the effects of such variables on the overall catalytic performance.
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