Hydrogen Production from Methane in Electron-Beam-Generated Plasma

Sharafutdinov, R. G.; Zarvin, A. E.; Madirbaev, V. Zh.; Gagachev, V.; Gartvich, G. G.

doi:10.1134/1.2035351

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…us, it can be concluded that the use of supersonic or near-sonic gas jets in ation with a high-energy electron beam is the most effective way to achieve m productivity in the steam methane conversion process for hydrogen ion. This conclusion is supported by the findings of previous work [12], which ated hydrogen production from methane in electron beam plasma. Firstly, the energy distribution function in the reactor is significantly shifted towards higher compared to discharge plasma.…”

Section: Problem Statement and Mathematical Msupporting

confidence: 88%

“…The authors of [12] identify three main stages in the initiation and execution of plasma chemical reactions: (i) energy from an external source is transferred to the electronic component of the plasma; (ii) the electron gas transfers the acquired energy to heavy particles (reactants) through processes involving heating, excitation of internal degrees of freedom of atoms and molecules, ionization and dissociation; (iii) chemical transformations occur within the chemically active environment. Consequently, in plasma-chemical processes, all types of particles present in the plasma are involved: electrons, ions, and neutral particles in both ground and excited states, with the role of the electronic component of the plasma being crucial in initiating the reaction.…”

Section: Introductionmentioning

confidence: 99%

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Transport of Steam-Gas Mixture in Hydrodynamic Devices: A Numerical Study of Steam Reforming of Methane

Mamytbekov,

Shayakhmetov,

Aizhulov

et al. 2023

Processes

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The paper introduces a mathematical model that describes the cavitation process occurring during the passage of a water steam flow in various geometric configurations of a hydrodynamic device. The flow experiences a localized constriction (convergent nozzle) followed by expansion (divergent nozzle), exemplified by a Venturi tube or a Laval nozzle. A narrow flow channel connecting the convergent and divergent sections is equipped with a narrow-section nozzle for injecting methane molecules into the high-speed steam flow. As the steam-gas mixture passes through this zone, it is irradiated with an electron beam and sprayed into a cylindrical chamber at atmospheric pressure, where the distribution of methane molecules in water vapor forms an aerosol. Key geometric parameters of the constriction and expansion zones of the hydraulic system (cavitation-jet chamber) are determined to ensure the uniform distribution of dispersed-phase particles (methane) in the dispersion medium (water vapor). Velocity and pressure distributions of the mixed steam-gas flow are calculated using a turbulent mathematical model, specifically the k-ω model, while the motion of methane particles is simulated using a particle tracing method. The uniformity of methane molecule distribution in water vapor is assessed using Ripley’s K-function. The best performance of the hydrogen-producing chamber was observed when the cavitation-inducing nozzle’s convergence angle exceeded 50 degrees. The divergence angle of the nozzle within the range of 30–40 degrees provided the best distribution in terms of uniformity of the methane particles in the chamber.

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Section: Problem Statement and Mathematical Msupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Transport of Steam-Gas Mixture in Hydrodynamic Devices: A Numerical Study of Steam Reforming of Methane

Mamytbekov,

Shayakhmetov,

Aizhulov

et al. 2023

Processes

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show abstract

“…at the same injected power significantly increased the proportion of electrons with energies above the dissociation threshold of the flow particles. Experiments [11][12][13] have shown that the proposed method provides an efficient generation of radicals that have been used to produce hydrogen from methane, and for the deposition of silicon from silane coatings. Thus the high efficiency of the method was proved where it's enough to initiate rapid process of fragmentation reactions.…”

Section: Gas-jet Plasma Chemictrymentioning

confidence: 99%

Jet Plasma-Chemical Reactor for the Conversion of Methane: the Use of Clustering

Zarvin¹,

Khodakov²,

Kalyada³

2012

AMPC

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The research results of processes proceeding in supersonic jets of light hydrocarbons, activated by an electron beam are presented. It is shown, that condensation suppressed at activation by electrons in the initial stage of condensation. The developed condensation conditions mode leads to increasing of a part of heavy corpuscles in activated stream and not only owing to stimulation of condensation but because of formation of heavy hydrocarbonic molecules.

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Warm Discharges for Fuel Conversion

Gutsol

2010

Handbook of Combustion

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The sections in this article are Introduction Fuel Conversion Thermal, Cold, and Warm Plasma Industrial Fuel Conversion Using Thermal Plasma Warm Plasma for Plasma‐Assisted Partial Oxidation ( PAPO ) Low current (Gliding) Arcs and Glow Discharges Microwave Discharges for PAPO and Plasma Catalysis Warm Plasma for Other Fuel Conversion Processes Outlook Summary

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Hydrogen Production from Methane in Electron-Beam-Generated Plasma

Cited by 8 publications

References 9 publications

Transport of Steam-Gas Mixture in Hydrodynamic Devices: A Numerical Study of Steam Reforming of Methane

Transport of Steam-Gas Mixture in Hydrodynamic Devices: A Numerical Study of Steam Reforming of Methane

Jet Plasma-Chemical Reactor for the Conversion of Methane: the Use of Clustering

Warm Discharges for Fuel Conversion

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