Low-level NO<sub><i>x</i></sub> removal in ambient air by pulsed corona technology

Beckers, Fjcm Frank; Hoeben, Wflm Wilfred; Pemen, Ajm Guus; Heesch, van Ejm Bert

doi:10.1088/0022-3727/46/29/295201

Cited by 20 publications

(9 citation statements)

References 10 publications

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“…Therefore, from the 135-ppm results we can conclude that besides NO removal, the plasma also constantly produces new NO and the subsequent by-products. This was also observed by Beckers et al for low-level NO x removal [28].…”

Section: Pulse Polarity and Initial Concentrationsupporting

confidence: 84%

“…An obvious choice to make is: to which application do we apply our nanosecond pulse technology? Some of the classical air-purification processes are the production of ozone [21,22,23,8,24] and the removal/conversion of nitrogen oxides (NO x ) [25,26,21,27,28,29,16,30], sulfur oxides (SO x ) [27,31,32,33], volatile organic compounds (VOCs) [34,35,36,37], tar [6,38], odour [39,40,41], particulate matter (PM) [27,41] and biological particles [41,42,43,44,45].…”

Section: Plasma Processesmentioning

confidence: 99%

See 1 more Smart Citation

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

Huiskamp¹,

Hoeben²,

Beckers³

et al. 2017

J. Phys. D: Appl. Phys.

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Section: Pulse Polarity and Initial Concentrationsupporting

confidence: 84%

Section: Plasma Processesmentioning

confidence: 99%

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

Huiskamp¹,

Hoeben²,

Beckers³

et al. 2017

J. Phys. D: Appl. Phys.

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“…depends on the discharge condition and initial concentrations of N 2 and O 2 , which come from gas leaking of the chamber. Intrinsic NO x production has also been observed by Beckers et al at low initial NO 2 concentration [21].…”

Section: Time Evolution Of No 2 Concentrations Under Different Initia...supporting

confidence: 53%

Time-resolved measurements of NO₂concentration in pulsed discharges by high-sensitivity cavity ring-down spectroscopy

Wu¹,

LI²,

Feng³

et al. 2017

Plasma Sci. Technol.

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To describe the complex kinetics of formation and destruction mechanism of nitrogen dioxide (NO 2 ), there is an increasing demand for real-time and in situ analysis of NO 2 in the discharge region. Pulsed cavity ring-down spectroscopy (CRDS) provides an excellent diagnostic approach. In the present paper, CRDS has been applied in situ for time evolution measurement of NO 2 concentration which is rarely investigated in gas discharges. In pulsed direct current discharge of NO 2 /Ar mixture at a pressure of 500 Pa, a peak voltage of −1300 V and a frequency of 30 Hz, for higher initial NO 2 concentration (3.05×10 14 cm −3 , 8.88×10 13 cm −3 ), the NO 2 concentration sharply decreases at the beginning of the discharge afterglow and then becomes almost constant, and the pace of decline increases with pulse duration; however, for lower initial NO 2 concentration of 1.69×10 13 cm −3 , the NO 2 concentration also decreases at the beginning of the discharge afterglow for 200 ns and 1 μs pulse durations, while it slightly increases and then declines for 2 μs pulse duration. Thus, the removal of low-level NO 2 could not be promoted by a higher mean energy input.

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“…On the other hand, when the hole was too small, the gas motion speed is slow and the result was poor. A hole diameter of 0.2 cm was 2 Carbon Dioxide NO 2 Nitrogen Dioxide…”

Section: Discussionmentioning

confidence: 99%

Analysis of Fine Dust Removal Time Using Circular Hole Electrodes of Various Sizes by Corona Discharge

Kim

Khan

et al. 2018

Energies

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Corona discharge technology is used widely for air purification in laboratory experiments and industry. On the other hand, corona discharge technology has the disadvantage of requiring large-sized electrodes. Therefore, research is needed to reduce the size of the electrodes. In this study, circular hole aluminum electrodes and an air purifier system were designed to reduce the size of the electrodes. Several sets of power conversions were performed to generate a corona discharge. The system consisted of a half bridge inverter, step-up transformer, and Cockcroft Walton circuit. The range of input and output voltages was 30-70 V and 20-25 kV, respectively. A corona discharge was generated by the output voltage. The system could remove smoke in less time with a combination of 13 kHz and an electrode with a hole diameter of 0.2 cm than with the other combinations. The electrode hole diameter affected the removal time of species such as hydrogen carbon hydrogen oxygen (HCHO, formaldehyde), total volatile organic compounds (TVOC), and fine dust, which was confirmed by laboratory experiments. Mathematical derivation and experiments were carried out to prove the validity of the approach; the Clean Air Delivery Rate (CADR) index was 480 µm/m 3 .

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Low-level NO_x removal in ambient air by pulsed corona technology

Cited by 20 publications

References 10 publications

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

Time-resolved measurements of NO₂concentration in pulsed discharges by high-sensitivity cavity ring-down spectroscopy

Analysis of Fine Dust Removal Time Using Circular Hole Electrodes of Various Sizes by Corona Discharge

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Low-level NOx removal in ambient air by pulsed corona technology

Cited by 20 publications

References 10 publications

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

(Sub)nanosecond transient plasma for atmospheric plasma processing experiments: application to ozone generation and NO removal

Time-resolved measurements of NO2concentration in pulsed discharges by high-sensitivity cavity ring-down spectroscopy

Analysis of Fine Dust Removal Time Using Circular Hole Electrodes of Various Sizes by Corona Discharge

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Product

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About

Low-level NO_x removal in ambient air by pulsed corona technology

Time-resolved measurements of NO₂concentration in pulsed discharges by high-sensitivity cavity ring-down spectroscopy