Influence of Water Vapor on CCl<sub>4</sub>and CHCl<sub>3</sub>Conversion in Gliding Discharge

Krawczyk, Krzysztof; Ulejczyk, Bogdan

doi:10.1023/b:pcpp.0000013196.20306.8b

Cited by 28 publications

(22 citation statements)

References 9 publications

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“…5 and 6). This result corresponded with the results obtained in other discharges and other models of reactors [13][14][15][16]. A small amount of COCl 2 was formed only in spark discharge (Fig.…”

Section: Mechanism Of CCL 4 Decompositionsupporting

confidence: 91%

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

et al. 2014

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Abstract:The decomposition of CCl 4 in air was investigated at atmospheric pressure in two discharges. Reactors used to generate electrical discharges were powered by the same electric power supply. In both reactors, nearly 90% conversion of CCl 4 was obtained. All chlorine was in the form of Cl 2 in the process carried out in the barrier discharge, while in the spark discharge, COCl 2 was formed. The conversion of CCl 4 to COCl 2 ranged from 2 to 12%. NO was formed in both discharges but the NO content in the gas leaving the reactors was 1.7-2.7% for the spark discharge and 0.045-0.06% for the barrier discharge. O 3 was produced only in the barrier discharge and its content ranged from 0.1 to 0.2%.

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Section: Mechanism Of CCL 4 Decompositionsupporting

confidence: 91%

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

et al. 2014

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“…In the early 1990's, GA devices was developed by A. Czernichowski [13] as an innovative approach to the solution of VOCs problem. Now the ability of GA to accelerate VOCs destruction reactions at low temperatures has been demonstrated [10][11][12][13][14], but the decomposition process is not clear enough.…”

Section: Introductionmentioning

confidence: 99%

Effects of Oxygen and Water Vapor on Volatile Organic Compounds Decomposition Using Gliding Arc Gas Discharge

Yan

et al. 2007

Plasma Chem Plasma Process

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The combined effects of oxygen and water vapor on three typical volatile organic compounds, i.e. tetrachloromethane, n-butane and toluene, decomposition efficiency under gliding arc gas discharge conditions are studied. The electron density and the density of the reactive radicals such as O and OH are modified by addition of oxygen and water vapor. Consequently, the decomposition process can be enhanced or suppressed, depending on the involved chemical structures and reaction channels. The addition of oxygen and water vapor suppresses the tetrachloromethane decomposition which indicates that this process is mainly controlled by the electron dissociation reactions. By contrast, the n-butane and toluene decompositions are enhanced, which shows that they can be mainly ascribed to the radical induced reactions. Especially, in a moist atmosphere the OH radicals are supposed to play the most important role in the n-butane decomposition process.

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“…Among such methods is the non-equilibrium plasma generated by glow, corona, gliding, barrier, microwave and surface discharges [2][3][4][5]. The energy of electrons in non-equilibrium plasma is much higher than that of molecules.…”

Section: Introductionmentioning

confidence: 99%

“…Studies on the decomposition of tetrachloromethane [4][5][6][7][8] in gliding and pulsed corona discharges have shown that the process is very complex. The discharges give rise to a large number of consecutive reactions in which many intermediate compounds are also involved.…”

Section: Introductionmentioning

confidence: 99%

Conversion of tetrachloromethane in large scale gliding discharge reactor

2014

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Gliding discharge plasma in a large scale reactor was used for decomposition of tetrachloromethane. The new power supply system based on a power inverter was used. The conversion of CCl 4 was investigated in air at normal pressure. The reactor was made of a quartzglass tube 60 mm in diameter and contained three converging electrodes 140 mm long. Effects of the initial CCl 4 concentration, gas flow rate and discharge power on CCl 4 conversion have been studied. The conversion of CCl 4 was high in all cases reaching a maximum of 90%. The conversion of tetrachloromethane decreased with increasing initial concentration of CCl 4 in the reaction mixture. Changing the gas flow rate from 1000 Nl h -1 to 1400 Nl h -1 decreased the conversion of tetrachloromethane.

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Influence of Water Vapor on CCl₄and CHCl₃Conversion in Gliding Discharge

Cited by 28 publications

References 9 publications

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

Effects of Oxygen and Water Vapor on Volatile Organic Compounds Decomposition Using Gliding Arc Gas Discharge

Conversion of tetrachloromethane in large scale gliding discharge reactor

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Influence of Water Vapor on CCl4and CHCl3Conversion in Gliding Discharge

Cited by 28 publications

References 9 publications

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

Effects of Oxygen and Water Vapor on Volatile Organic Compounds Decomposition Using Gliding Arc Gas Discharge

Conversion of tetrachloromethane in large scale gliding discharge reactor

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Influence of Water Vapor on CCl₄and CHCl₃Conversion in Gliding Discharge