scholarly journals Paracetamol Degradation by Catalyst Enhanced Non-Thermal Plasma Process for a Drastic Increase in the Mineralization Rate

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 959 ◽  
Author(s):  
Noussaiba Korichi ◽  
Olivier Aubry ◽  
Hervé Rabat ◽  
Benoît Cagnon ◽  
Dunpin Hong
Keyword(s):  
Thermal Plasma ◽  
High Performance ◽  
Treatment Time ◽  
Plasma Reactor ◽  
Energy Yield ◽  
Mineralization Rate ◽  
Plasma Catalysis ◽  
Coupling Process ◽  
Before And After ◽  
Non Thermal Plasma

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.

Decomposition of Trichloroethylene with Plasma-catalysis: A review

2011 ◽  
Vol 14 (1) ◽  
Author(s):  
A. M. Vandenbroucke ◽  
R. Morent ◽  
N. De Geyter ◽  
C. Leys
Keyword(s):  
Thermal Plasma ◽  
Plasma Reactor ◽  
Atmospheric Pressure Glow Discharge ◽  
Plasma Catalysis ◽  
Purification Technique ◽  
Pressure Glow Discharge ◽  
Pulsed Corona ◽  
Combined Use ◽  
Waste Air ◽  
Non Thermal Plasma

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.

scholarly journals Cold plasma catalysis as a novel approach for valorisation of untreated waste glycerol

2018 ◽  
Vol 20 (11) ◽  
pp. 2578-2587 ◽  
Author(s):  
Jonathan Harris ◽  
Anh N. Phan ◽  
Kui Zhang
Keyword(s):  
Thermal Plasma ◽  
Cold Plasma ◽  
Plasma Reactor ◽  
High Conversion ◽  
Plasma Catalysis ◽  
Waste Glycerol ◽  
Novel Approach ◽  
Non Thermal Plasma

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

Removal of Carbonyl Compounds in Diesel Exhaust Gas by Direct Non-Thermal Plasma

2013 ◽  
Vol 423-426 ◽  
pp. 471-478
Author(s):  
Fei Jiang ◽  
Yi Xi Cai ◽  
Wen He Han ◽  
Xiao Hua Li ◽  
Miao Dong ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Thermal Plasma ◽  
Diesel Exhaust ◽  
Carbonyl Compounds ◽  
Mass Concentration ◽  
High Performance ◽  
Analysis Technique ◽  
Ozone Formation Potential ◽  
Before And After ◽  
Non Thermal Plasma

The variation of carbonyl compounds in diesel exhaust at four loads before and after the treatment of Direct Non-thermal Plasma (DNTP) is studied with 2,4-dinitrophenylhydrazine (DNPH) derivatization method and high performance liquid chromatography (HPLC) analysis technique. The results show that the mass concentration of carbonyl compounds decreases firstly and then increases with the growing of diesel load before the treatment of DNTP. After the treatment of DNTP, the mass concentration of carbonyl compounds reduces remarkably. Maximum removal efficiency for total carbonyl compounds can reach 93.8% at 75% load. For acrolein, acetone, butyraldehyde and 2-butanone, removal efficiency can reach 100% at 25% load, 50% load and 100% load. At the same time, total ozone formation potential decrease dramatically.

scholarly journals Inactivation of airborne viruses using a packed bed non-thermal plasma reactor

2019 ◽  
Vol 52 (25) ◽  
pp. 255201 ◽  
Author(s):  
T Xia ◽  
A Kleinheksel ◽  
E M Lee ◽  
Z Qiao ◽  
K R Wigginton ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Plasma Reactor ◽  
Packed Bed ◽  
Non Thermal Plasma ◽  
Airborne Viruses

Surface Treatment of Polyethylene Terephthalate Film Using a DBD Non-Thermal Plasma Reactor

2021 ◽  
Author(s):  
Daniel-Eusebiu Cretu ◽  
Radu Burlica ◽  
Oana Beniuga ◽  
Dragos Astanei ◽  
Catalin Rusu ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Polyethylene Terephthalate ◽  
Thermal Plasma ◽  
Plasma Reactor ◽  
Polyethylene Terephthalate Film ◽  
Non Thermal Plasma

Development of Fiber Bragg Grating (FBG) as Temperature Sensor Inside Packed-bed Non-thermal Plasma Reactor

2014 ◽  
Vol 68 (3) ◽  
Author(s):  
Siti Musliha Aishah Musa ◽  
RK Raja Ibrahim ◽  
Asrul Izam Azmi
Keyword(s):  
Fiber Bragg Grating ◽  
Temperature Variation ◽  
Thermal Plasma ◽  
Temperature Sensor ◽  
Plasma Reactor ◽  
Packed Bed ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Bragg Wavelength ◽  
Non Thermal Plasma

This paper presents early work on Fiber Bragg grating (FBG) as temperature sensor to monitor temperature variation inside a packed-bed non-thermal plasma reactor. FBG made from germania-doped fiber with center Bragg wavelength of 1552.5 nm was embedded inside non-thermal plasma reactor with sphere shape dielectric bead (barium titanate) and used to probe the temperature variation inside the reactor. The experimental works have proven that FBG is a suitable sensor to monitor temperature variation inside of reactor via LabVIEW program. Besides that, Optical Spectrum Analyzer (OSA) recorded Bragg wavelength shift as voltage of power supply increases, which indicate the non-uniform temperature variation occurring inside the reactor. However, it does not affect the chemical reaction inside the reactor because the temperature condition is in steady state.

Synergistic effects and mechanism of a non-thermal plasma catalysis system in volatile organic compound removal: a review

2018 ◽  
Vol 8 (4) ◽  
pp. 936-954 ◽  
Author(s):  
Xinxin Feng ◽  
Hongxia Liu ◽  
Chi He ◽  
Zhenxing Shen ◽  
Taobo Wang
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Thermal Plasma ◽  
Carbon Balance ◽  
High Efficiency ◽  
Synergistic Effects ◽  
Product Selectivity ◽  
Plasma Catalysis ◽  
Volatile Organic ◽  
Non Thermal Plasma

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).

Tars removal by non-thermal plasma and plasma catalysis

2018 ◽  
Vol 51 (27) ◽  
pp. 274003 ◽  
Author(s):  
Richard Cimerman ◽  
Diana Račková ◽  
Karol Hensel
Keyword(s):  
Thermal Plasma ◽  
Plasma Catalysis ◽  
Non Thermal Plasma
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