Particle charging with travelling wave corona discharge

Masuda, S.; Nakatani, Hajime; Kawahara, Hiroshi; Mizuno, Akira

doi:10.1016/0304-3886(81)90038-3

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…Masuda boxer charger [34][35][36]. In this type of precharger, strip electrodes embedded in ceramic walls on both sides of the channel, excited by a high frequency signal cause the gas ionization by a surface discharge.…”

Section: Electrostatic Prechargersmentioning

confidence: 99%

Hybrid electrostatic filtration systems for exhaust gas cleaning

Jaworek,

Sobczyk,

Marchewicz

et al. 2024

J. Phys.: Conf. Ser.

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Emission of submicron and nanoparticles by industrial processes, like coal or biomass combustion, solid waste incineration, cement kiln heating, and glass production is a serious environmental problem. The application of most effective bag filters is limited due to very high temperature of the exhaust gases from most of these processes, sometimes >1000 K, which the filter material cannot resists. Cyclones, which could be resistant to these temperatures, are not effective for PM2.5 particles removal, which are the most abundant in these processes. Electrostatic precipitators remove dust from flue gases with high mass collection efficiency, but in submicron range (~100 nm to 1 μm) the so called “penetration window” occurs, in which the fractional collection efficiency decreases even below 50% at minimum. Hybrid electrostatic filtration systems, which combines various conventional gas-cleaning devices were therefore proposed and tested in several research papers, in order to improve the overall collection efficiency of the precipitation processes. The heart in all of these devices is an electrostatic particle charger, which can be a conventional electrostatic precipitator, a corona-discharge particle precharger, or electrostatic particle agglomerator. After charging and/or agglomeration, the particles can be further removed by other devices like cyclones, electrostatic precipitators, or bag filters (after gas cooling to an allowable temperature). The paper reviews specific problems encountered in exhaust gas cleaning from various industrial processes, and the most interesting constructions designed for this goal. In particular, an example of a system comprising a unipolar electrostatic agglomerator, which simultaneously charges the particles and agglomerates them in alternating electric field, for the formation of aggregates of finer particles (PM1) with larger species, which could be removed by any conventional gas cleaning device, with sufficiently high collection efficiency, has been discussed in details.

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Section: Electrostatic Prechargersmentioning

confidence: 99%

Hybrid electrostatic filtration systems for exhaust gas cleaning

Jaworek,

Sobczyk,

Marchewicz

et al. 2024

J. Phys.: Conf. Ser.

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“…When pulsed voltage is applied to ESPs to cope with back corona, researchers noticed that a large volume of electrode spacing could be ionized even at atmospheric pressure [14]. Once large space volume is ionized, reactive radicals are generated with the promotion of gaseous chemical reactions.…”

Section: Ntp For Environmental Remediationmentioning

confidence: 99%

Industrial applications of atmospheric non-thermal plasma in environmental remediation

Mizuno

2007

Plasma Phys. Control. Fusion

Self Cite

159

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Atmospheric non-thermal plasma (NTP) has been recognized as an important tool for the abatement of pollutants and for promoting various chemical reactions in gas or in liquid. Indoor air cleaners have been mass-produced and proved to be effective for the removal of odour and allergen. NTP has various potential applications in environmental remediation, such as the removal of volatile organic pollutants, simultaneous removal of NO x and soot in diesel exhaust and sterilization of air and water. To improve the efficiency of plasma chemical processes, a combination of NTP and catalysts/absorbents is effective. Synergetic effects have been recognized; however, its mechanism remains subject to further investigations. The generation of non-thermal discharge plasma and several industrial applications are presented in this paper.

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Generation of non-thermal plasma combined with catalysts and their application in environmental technology

Mizuno

2013

Catalysis Today

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Particle charging with travelling wave corona discharge

Cited by 6 publications

References 1 publication

Hybrid electrostatic filtration systems for exhaust gas cleaning

Hybrid electrostatic filtration systems for exhaust gas cleaning

Industrial applications of atmospheric non-thermal plasma in environmental remediation

Generation of non-thermal plasma combined with catalysts and their application in environmental technology

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