Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Vandenbroucke, A.; Vanderstricht, A.; Dinh, Minh Tuan Nguyen; Giraudon, Jean‐Marc; Morent, Rino; Lamonier, Jean‐François; Leys, Christophe

doi:10.2495/air110331

Cited by 5 publications

(5 citation statements)

References 18 publications

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“…This may also be due to the fast deactivation of catalyst resulting from numerous carbons released from toluene molecules. Our findings are in good agreement with the previous works [ 7 , 41 , 42 ]. However, Magureanu [ 12 ] reported a higher level of decomposition for increasing input concentration, believing that secondary reactions triggered by secondary radicals and ions resulting from the initial decomposition of CVOC molecules causes such effect.…”

Section: Resultssupporting

confidence: 94%

Enhanced performance of non-thermal plasma coupled with TiO2/GAC for decomposition of chlorinated organic compounds: influence of a hydrogen-rich substance

Abedi

Shahna

Jaleh

et al. 2014

J Environ Health Sci Engineer

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BackgroundNo study was found in the literature on the combination of TiO2/GAC catalyst and non-thermal plasma for chlorinated volatile organic compounds abatement in air. This paper presents this hybrid process for the decomposition of chloroform (as a target compound) using a multi-pin to plate discharge reactor. The experiments were performed using a high frequency pulsed transformer as the power supply system to examine the effect of SIE, frequency, as well as initial concentration on the chloroform removal efficiency (RE). Toluene was added as a hydrogen-rich source to shift the reactions into the formation of environmentally desirable products.ResultsRE of around 60% was observed with the NTP-alone process at the highest possible SIE (3000 J L−1), while it rocketed up to 100% (total oxidation) in the presence of TiO2/GAC at SIE of 1000 J L−1. About 100% O3 destruction over TiO2/GAC and both adsorption and catalytic activities of GAC may be considered as the reasons for better performance of the hybrid process. Toluene feeding diminished the chlorinated by-products such as Cl2 and TCE significantly. The selectivity towards CO2 was noticed to enhance noticeably, when both catalyst and toluene were introduced, regardless of the input concentration.ConclusionsOur findings suggest that the hybrid of NTP with TiO2/GAC will highly be effective in the abatement of chloroform, and the addition of toluene will successfully decline harmful chlorinated by-products.

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Section: Resultssupporting

confidence: 94%

Enhanced performance of non-thermal plasma coupled with TiO2/GAC for decomposition of chlorinated organic compounds: influence of a hydrogen-rich substance

Abedi

Shahna

Jaleh

et al. 2014

J Environ Health Sci Engineer

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“…153 The decomposition of trichloroethylene (TCE) by NTP utilised Pd (0.05 wt%)/c-Al 2 O 3 as the catalyst in a plasma reactor. 154 A wire-cylinder type plasma reactor using a pulsed power supply has been used and several kinds of catalysts such as Pt/Al 2 O 3 , V 2 O 5 -MnO 2 /Al 2 O 3 , MnO 2 -NiO/Al 2 O 3 , NiO/Al 2 O 3 and MnO 2 -CuO-NiO-cement have been used. 155 The plasma treatment significantly increases the removal effect of the catalysts.…”

Section: Plasma Induced Chemical Synthesismentioning

confidence: 99%

Retracted Article: Utility of plasma: a new road from physics to chemistry

2013

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“…The possible decomposition mechanism of TCE is proposed (see figure 8) according to the results of published studies [41][42][43][44][45][46]. The main by-products generated in the TCE decomposition are listed in table S1 (available online at stacks.iop.org/JPD/55/125202/mmedia) in the supporting information.…”

Section: Reaction Mechanismmentioning

confidence: 99%

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

Tian¹,

Ma²,

Nikiforov³

et al. 2021

J. Phys. D: Appl. Phys.

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In this study, a multi-pin-to-plate negative glow discharge reactor was employed to degrade the hazardous compound, trichloroethylene (TCE). The response surface methodology (RSM) was applied to examine the influences of various process factors (relative humidity (RH), gas flow rate, and discharge power) on the TCE decomposition process, with regard to the TCE removal efficiency, CO2 and CO selectivities. The variance analysis was used to estimate the significance of the single process factors and their interactions. It has been proved that the discharge power had the utmost influential impact on the TCE removal efficiency, CO2 and CO selectivities, subsequently the gas flow rate, and finally RH. Under the optimal conditions with 20.83% RH, 2 W discharge power and 0.5 L·min–1 gas flow rate, the optimal TCE removal efficiency (86.05%), CO2 selectivity (8.62%), and CO selectivity (15.14%) were achieved. In addition, a possible TCE decomposition pathway was proposed based on the investigation of byproducts identified in the exhaust gas of the NTP reactor. This work paves a way for the control of chlorinated volatile organic compounds.

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Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Cited by 5 publications

References 18 publications

Enhanced performance of non-thermal plasma coupled with TiO2/GAC for decomposition of chlorinated organic compounds: influence of a hydrogen-rich substance

Enhanced performance of non-thermal plasma coupled with TiO2/GAC for decomposition of chlorinated organic compounds: influence of a hydrogen-rich substance

Retracted Article: Utility of plasma: a new road from physics to chemistry

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

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