Enhancement of the Destruction of Propane in a Low-Temperature Plasma by the Addition of Unsaturated Hydrocarbons: Experiment and Modeling

Demidyuk, Vladimir; Hill, Sarah L.; Whitehead, J. Christopher

doi:10.1021/jp803078y

Cited by 9 publications

(3 citation statements)

References 13 publications

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“…1-Nitronaphthalene and 2-nitroethenylbenzene are trace products in an air discharge, which indicate that reactions between some intermediates and NO and NO 2 take place in the destruction process. Whitehead et al 11 and Kushner et al 53 investigated the reactions between NOx and low carbon hydrocarbons such as C 3 H 6 and C 3 H 8 in the discharge by analyzing the kinetic data of these reactions. They found that NOx generated in the plasma can react with some hydrocarbon radicals.…”

Section: Resultsmentioning

confidence: 99%

“…Naphthalene in flue gas can be treated effectively by electron beam irradiation, but the electron beam generation system and irradiation flow system are complicated. As an alternative approach, nonthermal plasma technology has been utilized for volatile organic compounds (VOCs) remediation for many years. – Because of the large number of high energy electrons and radicals and relative low gas temperature, nonthermal plasma is regarded as a promising technology for gas phase pollutants destruction. In this study, we study the naphthalene decomposition efficiency by gliding arc discharge, which has been utilized for abatement of some other gas pollutants and considered as an efficient kind of nonthermal plasma by many scientists.…”

Section: Introductionmentioning

confidence: 99%

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Decomposition of Naphthalene by dc Gliding Arc Gas Discharge

et al. 2009

J. Phys. Chem. A

119

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Gliding arc discharge has been proved to be effective in treatment of gas and liquid contaminants. In this study, physical characteristics of dc gliding arc discharge and its application to naphthalene destruction are investigated with different external resistances and carrier gases. The decomposition rate increases with increasing of oxygen concentration and decreases with external resistance. This value can be achieved up to 92.3% at the external resistance of 50 kOmega in the oxygen discharge, while the highest destruction energy efficiency reaches 3.6 g (kW h)(-1) with the external resistance of 93 kOmega. Possible reaction pathways and degradation mechanisms in the plasma with different gases are proposed by qualitative analysis of postdestructed products. In the air and oxygen gliding arc discharges, the naphthalene degradation is mainly governed by reactions with oxygen-derived radicals.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Decomposition of Naphthalene by dc Gliding Arc Gas Discharge

et al. 2009

J. Phys. Chem. A

119

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“…With increasing temperature, the energy barrier for reaction on the catalytic surface, can be overcome more easily increasing the oxidation rate of the propane or propene. This is in addition to the increased rates for the gas-phase destruction of propane and propene by O and OH that occur with increasing temperature [21]. In this regime, thermal activation of the catalyst becomes more important overtaking the contribution of the plasma-activated processes.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Temperature on the Plasma-Catalytic Destruction of Propane and Propene: A Comparison with Thermal Catalysis

Blackbeard

Demidyuk

Hill

et al. 2009

Plasma Chem Plasma Process

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A comparison has been made of plasma-catalysis with thermal-catalysis and plasma alone for the removal of low concentrations of propane and propene from synthetic air using a one-stage, catalyst-in discharge configuration. In all cases, plasma-catalysis produces better hydrocarbon destructions (*40%) than thermal catalysis at low temperatures. At higher temperatures, little difference is observed between plasma-catalytic and thermal-catalytic operation. Plasma operation by itself had a similar effectiveness to plasma-catalysis at low temperatures but was significantly lower (up to 50%) as the temperature was raised. By examining the form of the temperature dependence for the plasma-catalytic destruction processes, it is possible to phenomenologically distinguish two contributions to the destruction; one that is specifically plasma-induced and another (at higher temperatures) in which both plasma and thermal activation have similar mechanisms.

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An Investigation into the Dominant Reactions for Ethylene Destruction in Non‐Thermal Atmospheric Plasmas

Aerts

Bie

et al. 2012

Plasma Processes & Polymers

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A crucial step, which is still not well understood in the destruction of volatile organic compounds (VOCs) with low temperature plasmas, is the initiation of the process. Here, we present a kinetic model for the destruction of ethylene in low temperature plasmas that allows us to calculate the relative importance of all plasma species and their related reactions. Modifying the ethylene concentration and/or the SED had a major impact on the relative importance of the radicals (i.e., mainly atomic oxygen) and the metastable nitrogen (i.e., more specifically N2(${\rm A}^{3} \Sigma _{{\rm u}}^{ + } $)) in the destruction process. Our results show that the direct destruction by electron impact reactions for ethylene can be neglected; however, we can certainly not neglect the influence of N2(${\rm A}^{3} \Sigma _{{\rm u}}^{ + } $)). magnified image

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Enhancement of the Destruction of Propane in a Low-Temperature Plasma by the Addition of Unsaturated Hydrocarbons: Experiment and Modeling

Cited by 9 publications

References 13 publications

Decomposition of Naphthalene by dc Gliding Arc Gas Discharge

Decomposition of Naphthalene by dc Gliding Arc Gas Discharge

The Effect of Temperature on the Plasma-Catalytic Destruction of Propane and Propene: A Comparison with Thermal Catalysis

An Investigation into the Dominant Reactions for Ethylene Destruction in Non‐Thermal Atmospheric Plasmas

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