1. What are the contributions mentioned in the paper "The panorama of plasma-assisted non-oxidative methane reforming" ?
In this work, after introducing plasma classification and plasma chemistry, a comprehensive review of literature papers on non-thermal plasma-assisted methane coupling in the period 2010-2016 is presented and the best results that have been obtained with all different kinds of non-thermal plasma techniques are reported.. This is followed by a comparison between plasma-driven and thermal energy-driven methane coupling.
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2. What are the typical examples of non-thermal or cold plasmas?
Dielectric Barrier Discharges (DBD), corona (DC, AC and pulsed) and nanosecond pulsed discharges are usual examples of non-thermal or cold plasmas.
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3. What are the main reasons why the gas reserves have not been utilised yet?
The capital intensive gas transportation infrastructure and the energy intensive gas liquefaction process are the main reasons why those gas reserves have not been utilised yet [10][11][12].
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4. What can affect the electric field strength of a plasma reactor?
Different parts of a reactor, such as electrodes and dielectric barriers as well as the discharge gap can affect the electric field strength.
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![Fig. 2. Schematic showing the dominant reaction paths for C2 and C3 hydrocarbon products in the plasma under typical conditions: atmospheric pressure, pure methane feed. Reproduced with permission from Yang (2003). Yang [55] developed a model to describe the final product formation (Fig. 2). In this context, they defined the energetic threshold of ethane to acetylene formation transition: ethane was predominant at low energy input (<70 eV/molecule), low concentration of electrons and energy >6eV (typical for DBD), while at](/figures/fig-2-schematic-showing-the-dominant-reaction-paths-for-c2-1cjcq3d1.webp)
![Fig. 10. Ethane selectivity vs SEI in DBD reactors. The most promising results have been selected from the following references; Lu et al.[69], Kasinathan et al.[85], Wang et al. [70][81][88], Tu et al.[71], Indarto et al.[49], Jo et al. [78][79][80], Kudrayshov et al.[89] and Kado et al.[90].](/figures/fig-10-ethane-selectivity-vs-sei-in-dbd-reactors-the-most-gfbg7ewf.webp)
![Fig. 9. Methane conversion vs SEI in DBD reactors. The most promising results have been selected from the following references; Lu et al.[69], Kasinathan et al.[85], Wang et al. [70][81][88], Tu et al.[71], Indarto et al.[49], Jo et al. [78][79][80], Kudrayshov et al.[89] and Kado et al.[90].](/figures/fig-9-methane-conversion-vs-sei-in-dbd-reactors-the-most-qlb09fru.webp)