| Title: | Highly efficient decomposition of toluene using a high-temperature plasma-catalysis reactor |
| Author(s): | Yao S; Chen Z; Xie H; Yuan Y; Zhou R; Xu B; Chen J; Wu X; Wu Z; Jiang B; Tang X; Lu H; Nozaki T; Kim HH; |
| Address: | "School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China; School of Environmental and Safety Engineering, Changzhou University, Jiangsu, 213164, China. Electronic address: yaos@cczu.edu.cn. School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China. School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China; School of Environmental and Safety Engineering, Changzhou University, Jiangsu, 213164, China. Electronic address: wuzuliang@cczu.edu.cn. Department of Mechanical Engineering, Tokyo Institute of Technology, Tokyo, 152-8550, Japan. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8560, Japan" |
| DOI: | 10.1016/j.chemosphere.2020.125863 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Plasma-catalysis technologies (PCTs) have the potential to control the emissions of volatile organic compounds, although their low-energy efficiency is a bottleneck for their practical applications. A plasma-catalyst reactor filled with a CeO(2)/gamma-Al(2)O(3) catalyst was developed to decompose toluene with a high-energy efficiency enhanced by the elevating reaction temperature. When the reaction temperature was raised from 50 degrees C to 250 degrees C, toluene conversion dramatically increased from 45.3% to 95.5% and the energy efficiency increased from 53.5 g/kWh to 113.0 g/kWh. Conversely, the toluene conversion using a thermal catalysis technology (TCT) exhibited a maximum of 16.7%. The activation energy of toluene decomposition using PCTs is 14.0 kJ/mol, which is far lower than those of toluene decomposition using TCTs, which implies that toluene decomposition using PCT differs from that using TCT. The experimental results revealed that the Ce(3+)/Ce(4+) ratio decreased and O(ads)/O(latt) ratio increased after the 40-h evaluation experiment, suggesting that CeO(2) promoted the formation of the reactive oxygen species that is beneficial for toluene decomposition" |
| Keywords: | "Air Pollutants/*analysis Aluminum Oxide/chemistry Catalysis Cerium/chemistry Hot Temperature Models, Theoretical Oxidation-Reduction Plasma Gases/*chemistry Toluene/*analysis Volatile Organic Compounds/*analysis Activation energy CeO(2)/gamma-Al(2)O(3) En;" |
| Notes: | "MedlineYao, Shuiliang Chen, Zhizong Xie, Han Yuan, Yuchen Zhou, Ruowen Xu, Bingqing Chen, Junxia Wu, Xinyue Wu, Zuliang Jiang, Boqiong Tang, Xiujuan Lu, Hao Nozaki, Tomohiro Kim, Hyun-Ha eng England 2020/01/24 Chemosphere. 2020 May; 247:125863. doi: 10.1016/j.chemosphere.2020.125863. Epub 2020 Jan 13" |
