Methane Conversion to C2 Hydrocarbons Using Dielectric-barrier Discharge Reactor: Effects of System Variables

Matin, Naser Seyed; Savadkoohi, Hasan A.; Feizabadi, Seyed Younos

doi:10.1007/s11090-008-9123-5

Cited by 28 publications

(6 citation statements)

References 23 publications

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“…When the ratio is higher than 3, H 2 and C x H y are mostly formed and in a lower content also CO and undesired CO 2 . If the ratio decreases to about 3, which is slightly above the explosion limit, CO is mostly formed and in a lower content CO 2 and H 2 [2,18,19]. These results are quite similar to our calculation results for the 90/10 CH 4 /O 2 and the 70/30 CH 4 /O 2 mixtures, respectively.…”

Section: Ch 4 /O 2 Gas Mixturesupporting

confidence: 91%

“…However, we can already compare our calculated results with similar studies in the literature on the conversion of methane in the presence of oxygen. It was found that the use of O 2 as a co-reactant also significantly increases the CH 4 conversion [2,11,18,19]. In contrast, our calculations again show a decrease in the CH 4 conversion when the initial O 2 fraction is increased for the same reason as mentioned in section 4.2 for the CH 4 /CO 2 gas mixture.…”

Section: Ch 4 /O 2 Gas Mixturesupporting

confidence: 67%

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Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations

Bie

Martens

Dijk

et al. 2011

Plasma Sources Sci. Technol.

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Dielectric barrier discharges used for the conversion of greenhouse gases : modeling the plasma chemistry by fluid simulations. In Proceedings of the XX European Conference on the Atomic and Molecular Physics of Ionized Gases (20th ESCAMPIG, Novi Sad, Serbia, July 13-17, 2010) (pp. WAM_13-1/4) General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

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Section: Ch 4 /O 2 Gas Mixturesupporting

confidence: 91%

Section: Ch 4 /O 2 Gas Mixturesupporting

confidence: 67%

Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations

Bie

Martens

Dijk

et al. 2011

Plasma Sources Sci. Technol.

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“…These ion-neutral interactions are of interest because of their role in methane reforming to valuable products in a corona or dielectric barrier discharge reactor [19][20][21][22]. The accuracy of the obtained INVERT potentials was confirmed by comparing them with accurate, ab initio potentials and also by comparing the ion mobilities calculated from them with experimental values.…”

Section: Introductionmentioning

confidence: 76%

Determination of and interaction potentials from gaseous ion mobility data

et al. 2010

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Effective spherical interaction potentials for ArÀO þ 2 and KrÀO þ 2 are calculated from experimental gaseous ion mobility data by using the direct inversion method. The potentials obtained are used to obtain best-fit parameters of the Morse-Morse-Spline-Van der Waals (MMSV) potential model. The MMSV potentials were then employed to compute the mobility of O þ 2 ion in argon and krypton gases at 300 K. Results show that the MMSV potentials reproduce the experimental ion mobilities within their experimental accuracy.

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“…7) Plasma conversion experiments have been carried out with methane and oxygen as background gas. [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Various plasma reactors were designed to produce methanol more efficiently. For instance, Okumoto et al studied a pulsed dielectric barrier discharge (DBD) plasma that converts methane to methanol at room temperature and atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

Global modeling on partial oxidation of methane to oxygenates and syngas in non-equilibrium plasma

Qian

Zhong

Kang

et al. 2020

Jpn. J. Appl. Phys.

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In this paper, plasma kinetics of CH 4 /O 2 at atmospheric pressure are of interest for applications in plasma chemistry where partial oxidation of methane to oxygenates and syngas are investigated by zero-dimensional global model. Effect of methane mole fraction ranging from 5% to 99% on plasma kinetics is studied in detail. It is found that electron density and electron temperature change periodically with periodic variation of power density pulse. The number densities of free radicals, ions and stable molecules are discussed as a function of simulation time and CH 4 /O 2 molar ratio. Conversions of inlet gases, selectivities and yields of important products, and optimum methane content for methanol and formaldehyde formation are calculated and presented. In addition, CH 3 radical is found to be the key intermediate for oxygenates production by analyzing the underlying dominant reaction pathways. Finally, a schematic overview of the transformation relationship between dominant plasma species is also summarized and shown.

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Methane Conversion to C2 Hydrocarbons Using Dielectric-barrier Discharge Reactor: Effects of System Variables

Cited by 28 publications

References 23 publications

Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations

Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations

Determination of and interaction potentials from gaseous ion mobility data

Global modeling on partial oxidation of methane to oxygenates and syngas in non-equilibrium plasma

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