Influence of N2 concentration in a CH4/N2 dielectric barrier discharge used for CH4 conversion into H2

Snoeckx, Ramses; Setareh, Mahsa; Aerts, Robby; Simon, Peter F. W.; Maghari, Ali; Bogaerts, Annemie

doi:10.1016/j.ijhydene.2013.09.136

Cited by 78 publications

(131 citation statements)

References 44 publications

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“…In contrast, Snoeckx et al [73] in their cylindrical reactor without packing observed HCN at concentrations an order of magnitude lower than ourselves and Horvath: e.g. at 6 kJ dm M, respectively.…”

Section: Data Manipulationcontrasting

confidence: 67%

“…which the authors and others have postulated ( [73] and refs therein) are the intermediates in the formation of HCN [72], e.g. :…”

Section: Data Manipulationmentioning

confidence: 99%

“…The production of HCN increased with input power (see rows [1][2][3][4][5] in the presence of CO 2 and CH 4 , but showed no dependence upon power in the experiments using just CH 4 and N 2 (rows 6-10). The study of the plasma driven conversion of CH 4 /N 2 mixtures is topical due to their relevance to the atmospheres of Titan and Triton (and the postulate that these are models for the early development of Earth) [70][71][72] and also with respect to natural gas conversion [73]. Horvath et al [72] have observed HCN at similar concentrations using the same SIE as here: thus the authors employed a cylindrical, co-axial quartz reactor packed with borosilicate beads and supplied with 10%CH 4 /N 2 at SIEs of 1-30 kJ dm -3 .…”

Section: Data Manipulationmentioning

confidence: 99%

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The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study

Christensen

Ali

Mashhadani

et al. 2018

Plasma Chem Plasma Process

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In situ Fourier Transform Infra Red spectroscopy was employed to study the plasma glow region of a non-thermal plasma between two Macor dielectrics and fed with CO 2 , CH 4 and N 2 . CO, HCN and formaldehyde were produced and rapidly attained steadystate conditions. In addition, the chain oxides C 5 O 2 and ketene were observed (the first time such species have been seen in the dry reforming of methane) and a liquid film was produced comprising multiple components, one of which was acetamide. The data were interpreted in terms of catalysis by the Macor dielectric and a wholly novel, multizone model in which the liquid film plays a direct and important role. The data obtained in the plasma experiments were compared to an analogous, thermal experiment. Importantly, the results from this work could have major implications across the fields of catalysis, synthesis and origin-of-life chemistry.

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Section: Data Manipulationcontrasting

confidence: 67%

“…which the authors and others have postulated ( [73] and refs therein) are the intermediates in the formation of HCN [72], e.g. :…”

Section: Data Manipulationmentioning

confidence: 99%

Section: Data Manipulationmentioning

confidence: 99%

See 1 more Smart Citation

The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study

Christensen

Ali

Mashhadani

et al. 2018

Plasma Chem Plasma Process

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“…, and the maximums of the electron temperatures are around 3 eV during the pulse, 8 which are typical conditions for the DBD at atmospheric pressure and obviously lower than the simulation results of the nanosecond pulsed needle-plane discharge calculated by the present model. …”

Section: à3contrasting

confidence: 58%

“…Bogaerts et al have investigated influences of N 2 concentration in the CH 4 /N 2 dielectric barrier discharge (DBD) on the CH 4 conversion into H 2 . 8 Tu and Whitehead have developed an alternating-current (AC) gliding arc reactor to offer the novel route for the co-generation of syngas and value-added carbon nanomaterials by plasma dry reforming of methane. 9 Bie et al have studied the dominated pathways for methane conversion into oxygenates and syngas in atmospheric pressure DBD using a onedimensional numerical model.…”

Section: Introductionmentioning

confidence: 99%

Reaction pathways of producing and losing particles in atmospheric pressure methane nanosecond pulsed needle-plane discharge plasma

Zhao

Wang

et al. 2018

Physics of Plasmas

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In this work, a two-dimensional fluid model is built up to numerically investigate the reaction pathways of producing and losing particles in atmospheric pressure methane nanosecond pulsed needle-plane discharge plasma. The calculation results indicate that the electron collisions with CH4 are the key pathways to produce the neutral particles CH2 and CH as well as the charged particles e and CH3+. CH3, H2, H, C2H2, and C2H4 primarily result from the reactions between the neutral particles and CH4. The charge transfer reactions are the significant pathways to produce CH4+, C2H2+, and C2H4+. As to the neutral species CH and H and the charged species CH3+, the reactions between themselves and CH4 contribute to substantial losses of these particles. The ways responsible for losing CH3, H2, C2H2, and C2H4 are CH3 + H → CH4, H2 + CH → CH2 + H, CH4+ + C2H2 → C2H2+ + CH4, and CH4+ + C2H4 → C2H4+ + CH4, respectively. Both electrons and C2H4+ are consumed by the dissociative electron-ion recombination reactions. The essential reaction pathways of losing CH4+ and C2H2+ are the charge transfer reactions.

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The Quest for Value‐Added Products from Carbon Dioxide and Water in a Dielectric Barrier Discharge: A Chemical Kinetics Study

et al. 2016

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Recycling of carbon dioxide by its conversion into value-added products has gained significant interest owing to the role it can play for use in an anthropogenic carbon cycle. The combined conversion with H O could even mimic the natural photosynthesis process. An interesting gas conversion technique currently being considered in the field of CO conversion is plasma technology. To investigate whether it is also promising for this combined conversion, we performed a series of experiments and developed a chemical kinetics plasma chemistry model for a deeper understanding of the process. The main products formed were the syngas components CO and H , as well as O and H O , whereas methanol formation was only observed in the parts-per-billion to parts-per-million range. The syngas ratio, on the other hand, could easily be controlled by varying both the water content and/or energy input. On the basis of the model, which was validated with experimental results, a chemical kinetics analysis was performed, which allowed the construction and investigation of the different pathways leading to the observed experimental results and which helped to clarify these results. This approach allowed us to evaluate this technology on the basis of its underlying chemistry and to propose solutions on how to further improve the formation of value-added products by using plasma technology.

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Influence of N2 concentration in a CH4/N2 dielectric barrier discharge used for CH4 conversion into H2

Cited by 78 publications

References 44 publications

The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study

The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study

Reaction pathways of producing and losing particles in atmospheric pressure methane nanosecond pulsed needle-plane discharge plasma

The Quest for Value‐Added Products from Carbon Dioxide and Water in a Dielectric Barrier Discharge: A Chemical Kinetics Study

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