In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control

Volatile organic compounds (VOCs) emission from anthropogenic sources has becoming increasingly serious in recent decades owing to the substantial contribution to haze formation and adverse health impact. To tackle this issue, various physical and chemical techniques are applied to eliminate VOC emi...

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Main Authors: Juexiu Li, Hongbo Zhang, Diwen Ying, Yalin Wang, Tonghua Sun, Jinping Jia
Format: Article
Language:English
Published: MDPI AG 2019-02-01
Series:International Journal of Environmental Research and Public Health
Subjects:
VOCs
in plasma catalytic
dielectric barrier discharge
CuO foam
toluene
Online Access:https://www.mdpi.com/1660-4601/16/5/711
id doaj-be6e97221dff4539a32deec588cfa471
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spelling doaj-be6e97221dff4539a32deec588cfa4712020-11-24T21:59:12ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012019-02-0116571110.3390/ijerph16050711ijerph16050711In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct ControlJuexiu Li0Hongbo Zhang1Diwen Ying2Yalin Wang3Tonghua Sun4Jinping Jia5School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaVolatile organic compounds (VOCs) emission from anthropogenic sources has becoming increasingly serious in recent decades owing to the substantial contribution to haze formation and adverse health impact. To tackle this issue, various physical and chemical techniques are applied to eliminate VOC emissions so as to reduce atmospheric pollution. Among these methods, non-thermal plasma (NTP) is receiving increasing attention for the higher removal efficiency, non-selectivity, and moderate operation, whereas the unwanted producing of NO<sub>2</sub> and O<sub>3</sub> remains important drawback. In this study, a dielectric barrier discharge (DBD) reactor with wedged high voltage electrode coupled CuO foam in an in plasma catalytic (IPC) system was developed to remove toluene as the target VOC. The monolith CuO foam exhibits advantages of easy installation and controllable of IPC length. The influencing factors of IPC reaction were studied. Results showed stronger and more stable plasma discharge in the presence of CuO foam in DBD reactor. Enhanced performance was observed in IPC reaction for both of toluene conversion rate and CO<sub>2</sub> selectivity compared to the sole NTP process at the same input energy. The longer the contributed IPC length, the higher the toluene removal efficiency. The toluene degradation mechanism under IPC condition was speculated. The producing of NO<sub>2</sub> and O<sub>3</sub> under IPC process were effectively removed using Na<sub>2</sub>SO<sub>3</sub> bubble absorption.https://www.mdpi.com/1660-4601/16/5/711VOCsin plasma catalyticdielectric barrier dischargeCuO foamtoluene
collection DOAJ
language English
format Article
sources DOAJ
author Juexiu Li
Hongbo Zhang
Diwen Ying
Yalin Wang
Tonghua Sun
Jinping Jia
spellingShingle Juexiu Li
Hongbo Zhang
Diwen Ying
Yalin Wang
Tonghua Sun
Jinping Jia
In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
International Journal of Environmental Research and Public Health
VOCs
in plasma catalytic
dielectric barrier discharge
CuO foam
toluene
author_facet Juexiu Li
Hongbo Zhang
Diwen Ying
Yalin Wang
Tonghua Sun
Jinping Jia
author_sort Juexiu Li
title In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
title_short In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
title_full In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
title_fullStr In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
title_full_unstemmed In Plasma Catalytic Oxidation of Toluene Using Monolith CuO Foam as a Catalyst in a Wedged High Voltage Electrode Dielectric Barrier Discharge Reactor: Influence of Reaction Parameters and Byproduct Control
title_sort in plasma catalytic oxidation of toluene using monolith cuo foam as a catalyst in a wedged high voltage electrode dielectric barrier discharge reactor: influence of reaction parameters and byproduct control
publisher MDPI AG
series International Journal of Environmental Research and Public Health
issn 1660-4601
publishDate 2019-02-01
description Volatile organic compounds (VOCs) emission from anthropogenic sources has becoming increasingly serious in recent decades owing to the substantial contribution to haze formation and adverse health impact. To tackle this issue, various physical and chemical techniques are applied to eliminate VOC emissions so as to reduce atmospheric pollution. Among these methods, non-thermal plasma (NTP) is receiving increasing attention for the higher removal efficiency, non-selectivity, and moderate operation, whereas the unwanted producing of NO<sub>2</sub> and O<sub>3</sub> remains important drawback. In this study, a dielectric barrier discharge (DBD) reactor with wedged high voltage electrode coupled CuO foam in an in plasma catalytic (IPC) system was developed to remove toluene as the target VOC. The monolith CuO foam exhibits advantages of easy installation and controllable of IPC length. The influencing factors of IPC reaction were studied. Results showed stronger and more stable plasma discharge in the presence of CuO foam in DBD reactor. Enhanced performance was observed in IPC reaction for both of toluene conversion rate and CO<sub>2</sub> selectivity compared to the sole NTP process at the same input energy. The longer the contributed IPC length, the higher the toluene removal efficiency. The toluene degradation mechanism under IPC condition was speculated. The producing of NO<sub>2</sub> and O<sub>3</sub> under IPC process were effectively removed using Na<sub>2</sub>SO<sub>3</sub> bubble absorption.
topic VOCs
in plasma catalytic
dielectric barrier discharge
CuO foam
toluene
url https://www.mdpi.com/1660-4601/16/5/711
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