Removal of benzene by non-thermal plasma catalysis over manganese oxides through a facile synthesis method

2019 ◽  
Vol 26 (8) ◽  
pp. 8237-8247 ◽  
Author(s):  
Hao Guo ◽  
Xin Liu ◽  
Hajime Hojo ◽  
Xin Yao ◽  
Hisahiro Einaga ◽  
...  
Author(s):  
A. M. Vandenbroucke ◽  
R. Morent ◽  
N. De Geyter ◽  
C. Leys

AbstractThe aim of this paper is to give a review of the research on the decomposition of trichloroethylene (TCE), a common industrial solvent, with combined use of non-thermal plasma and heterogeneous catalysis, i.e. plasma-catalysis. This air purification technique has been investigated over the last decade in an effort to overcome the disadvantages of non-thermal plasma treatment of waste air containing volatile organic compounds (VOCs). Some examples of different plasma technologies used for plasma-catalysis are given. These include the dielectric barrier discharge, the pulsed corona discharge and the atmospheric pressure glow discharge. In a plasma-catalytic hybrid system the catalyst can either be located in the discharge region or downstream of the plasma reactor. The mechanisms that drive both configurations are briefly discussed, followed by an extended literature overview of the removal of TCE with plasma-catalysis.


2018 ◽  
Vol 8 (4) ◽  
pp. 936-954 ◽  
Author(s):  
Xinxin Feng ◽  
Hongxia Liu ◽  
Chi He ◽  
Zhenxing Shen ◽  
Taobo Wang

Non-thermal plasma catalysis with high efficiency, high by-product selectivity and superior carbon balance is one of the most promising technologies in the control of volatile organic compounds (VOCs).


2018 ◽  
Vol 51 (27) ◽  
pp. 274003 ◽  
Author(s):  
Richard Cimerman ◽  
Diana Račková ◽  
Karol Hensel

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 98 ◽  
Author(s):  
Savita K. P. Veerapandian ◽  
Nathalie De Geyter ◽  
Jean-Marc Giraudon ◽  
Jean-François Lamonier ◽  
Rino Morent

Non-thermal plasma technique can be easily integrated with catalysis and adsorption for environmental applications such as volatile organic compound (VOC) abatement to overcome the shortcomings of individual techniques. This review attempts to give an overview of the literature about the application of zeolite as adsorbent and catalyst in combination with non-thermal plasma for VOC abatement in flue gas. The superior surface properties of zeolites in combination with its excellent catalytic properties obtained by metal loading make it an ideal packing material for adsorption plasma catalytic removal of VOCs. This work highlights the use of zeolites for cyclic adsorption plasma catalysis in order to reduce the energy cost to decompose per VOC molecule and to regenerate zeolites via plasma.


Catalysts ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 91 ◽  
Author(s):  
Zhiping Ye ◽  
Jean-Marc Giraudon ◽  
Nathalie De Geyter ◽  
Rino Morent ◽  
Jean-François Lamonier

This review provides an overview of our present state of knowledge using manganese oxide (MnOx)-based catalysts for toluene abatement in PPC (Post plasma-catalysis) configuration. The context of this study is concisely sum-up. After briefly screening the main depollution methods, the principles of PPC are exposed based on the coupling of two mature technologies such as NTP (Non thermal plasma) and catalysis. In that respect, the presentation of the abundant manganese oxides will be firstly given. Then in a second step the main features of MnOx allowing better performances in the reactions expected to occur in the abatement of toluene in PPC process are reviewed including ozone decomposition, toluene ozonation, CO oxidation and toluene total oxidation. Finally, in a last part the current status of the applications of PPC using MnOx on toluene abatement are discussed. In a first step, the selected variables of the hybrid process related to the experimental conditions of toluene abatement in air are identified. The selected variables are those expected to play a role in the performances of PPC system towards toluene abatement. Then the descriptors linked to the performances of the hybrid process in terms of efficiency are given and the effects of the variables on the experimental outcomes (descriptors) are discussed. The review would serve as a reference guide for the optimization of the PPC process using MnOx-based oxides for toluene abatement.


Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 959 ◽  
Author(s):  
Noussaiba Korichi ◽  
Olivier Aubry ◽  
Hervé Rabat ◽  
Benoît Cagnon ◽  
Dunpin Hong

In order to remediate the very poor mineralization of paracetamol in water, even when well degraded by using a Non-Thermal Plasma (NTP) process at a very low dissipated power, a plasma-catalyst coupling process was tested and investigated. A homemade glass fiber supported Fe3+ catalyst was immersed in the liquid to be treated in a Dielectric Barrier Discharge plasma reactor. The plasma-catalysis process, at the same low dissipated power, achieved a mineralization rate of 54% with a full conversion rate of paracetamol at 25 mg L−1 in initial concentration after 60 min treatment, thanks to Fenton-like effects. The synergetic effects of the plasma-catalysis coupling process also improved the Energy Yield by a factor of two. The catalyst before and after use for treatment was characterized by Brunauer-Emmett-Teller and Thermogravimetric analysis. High-Performance Liquid Chromatography was used to measure the concentration of treated solution and to investigate the intermediates. Two of them, namely 1,4-hydroquinone and 1,4-benzoquinone, were formally identified. Some intermediates are presented in this paper as a function of treatment time and their UV absorbance spectra. NTP processes with and without catalyst coupling were compared in terms of acidity, conductivity, and nitrate concentrations in the treated solution.


2015 ◽  
Vol 259 ◽  
pp. 761-770 ◽  
Author(s):  
Heesoo Lee ◽  
Dae-Hoon Lee ◽  
Young-Hoon Song ◽  
Won Choon Choi ◽  
Yong-Ki Park ◽  
...  

2018 ◽  
Vol 20 (11) ◽  
pp. 2578-2587 ◽  
Author(s):  
Jonathan Harris ◽  
Anh N. Phan ◽  
Kui Zhang

Waste glycerol decomposition to valuable products at high conversion and selectivity in a non-thermal plasma reactor.


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