Non-thermal plasmas for non-catalytic and catalytic VOC abatement

Vandenbroucke, A.; Morent, Rino; Geyter, Nathalie De; Leys, Christophe

doi:10.1016/j.jhazmat.2011.08.060

Cited by 585 publications

(352 citation statements)

References 272 publications

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“…However, the plasma chemistries of these molecular gases frequently involves tens of species and hundreds or even thousands of reactions including the electron impact, electron-ion recombination, neutral-neutral, ion-neutral, and ion-ion reactions. 24,37 Solving fluid models with such complex chemistries is computationally very expensive, particularly on a 2D geometry. Thus, in this study, we have decided to use pure helium as the discharge gas.…”

Section: -2mentioning

confidence: 99%

“…16,21,22 Several experimental studies have been attempted to investigate the nature of physical and chemical interactions between packing materials and plasma in packed DBDs. [22][23][24] However, experimental studies have their limitations in terms of parameters that can be accurately measured during plasma operation, and the packing itself adds an extra impediment in visibility for optical/laser analysis. While such experimental diagnostic studies are indispensable, we believe computational modeling can be used as a complementary tool to optimize the system in a directed way, providing more quantitative process-parameter relationships.…”

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Fluid model for a partially packed dielectric barrier discharge plasma reactor

Gadkari

2017

Physics of Plasmas

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In this work, a two-dimensional numerical \ud fluid model is developed for a partially\ud packed dielectric barrier discharge (DBD) in pure helium. In\ud fluence of packing on\ud the discharge characteristics is studied by comparing the results of DBD with partial\ud packing with those obtained for DBD with no packing. In the axial partial packing\ud configuration studied in this work, the electric field strength was shown to be en\ud hanced at the top surface of the spherical packing material and at the contact points\ud between the packing and the dielectric layer. For each value of applied potential,\ud DBD with partial packing showed an increase in the number of pulses in the current\ud profile in the positive half cycle of the applied voltage, as compared to DBD with\ud no packing. Addition of partial packing to the plasma-alone DBD also led to an\ud increase in the electron and ion number densities at the moment of breakdown. The\ud time averaged electron energy profiles showed that a much higher range of electron\ud energy can be achieved with the use of partial packing as compared to no packing\ud in a DBD, at the same applied power. The spatially and time averaged values over\ud one voltage cycle also showed an increase in power density and electron energy on\ud inclusion of partial packing in the DBD. For the applied voltage parameters studied\ud in this work, the discharge was found to be consistently homogeneous and showed\ud the characteristics of atmospheric pressure glow discharge

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Section: -2mentioning

confidence: 99%

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confidence: 99%

Fluid model for a partially packed dielectric barrier discharge plasma reactor

Gadkari

2017

Physics of Plasmas

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“…The plasma discharge could change the status of gas phase reactants for catalytic reactions, and it could modify the surface properties of catalysts. Vandenbroucke et al [13] reviewed the present understanding of the mechanisms involved in plasma catalysis process and studied the decomposition of toluene with plasma catalysis on laboratory scale [14]. In the research by Futamura et al [15], a silent discharge plasma reactor has been hybridized with different catalysts (MnO 2 , TiO 2 and TiO 2 -silica gel) for benzene decomposition.…”

Section: Figurementioning

confidence: 99%

Exploration of nano-surface chemistry for spectral analysis

Liu

Lü

et al. 2013

Chin. Sci. Bull.

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The applications of nano-surface chemistry in the field of spectral analysis have attracted growing interest in recent years. In this article, we reviewed the applications of nanomaterials-based chemical reactions for spectral analysis, including the development in plasma-catalysis, surface-enhanced spectroscopy, separation and preconcentration, chemical vapor generation, labeling and signal amplification. Introduction of nano-surface chemistry to spectral analysis not only improves the sensitivity and selectivity, broadens the application range of spectral analysis, but also affords analytical community special characterization tools.surface chemistry, nanomaterial, plasma, separation, chemical vapor generation, opticle gas sensors, atomic spectrometry Citation:Li C H, Liu R, Lü Y, et al. Exploration of nano-surface chemistry for spectral analysis.

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“…Non-thermal plasma (NTP) has received considerable attentions due to the great advantages of achievement of high electron energies within short residence time and easy operations under ambient temperature. However, pure NTP suffers from weaknesses of incomplete oxidation with emission of harmful by-products, poor energy efficiency and low mineralization degree [3]. More effective use of NTP is by exploiting its potential via the combination with heterogeneous catalysis, with advantages for the quick response from plasma and high selectivity of desired products from catalysis.…”

Section: Introductionmentioning

confidence: 99%

Enhanced removal of toluene by dielectric barrier discharge coupling with Cu-Ce-Zr supported ZSM-5/TiO2/Al2O3

Dou

Liu

Zhang

et al. 2017

Catalysis Communications

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Toluene was removed by dielectric barrier discharge coupling with Cu-Ce-Zr supported ZSM-5/TiO 2 /Al 2 O 3 catalysts. Copper, cerium, and zirconium species were highly dispersed on the support surface, and copper was mostly in Cu 2+ and Cu + state co-existed. The reaction process of toluene removal in the plasma-catalyst system was influenced by the support of the catalyst and it could be divided into three steps. Pure plasma and thermal catalytic chemistry triggered by background temperature played different roles in the different step. Large pore size, more oxygen vacancy and lattice oxygen in the CuCeZr/TiO 2 were responsible to the excellent toluene removal, CO 2 selectivity and energy yield.

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Non-thermal plasmas for non-catalytic and catalytic VOC abatement

Cited by 585 publications

References 272 publications

Fluid model for a partially packed dielectric barrier discharge plasma reactor

Fluid model for a partially packed dielectric barrier discharge plasma reactor

Exploration of nano-surface chemistry for spectral analysis

Enhanced removal of toluene by dielectric barrier discharge coupling with Cu-Ce-Zr supported ZSM-5/TiO2/Al2O3

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