Energy Efficiency Improvement of Nitric Oxide Treatment Using Nanosecond Pulsed Discharge

Matsumoto, Takao; Wang, D; Namihira, T.; Akiyama, H.

doi:10.1109/tps.2010.2045903

Cited by 78 publications

(44 citation statements)

References 18 publications

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“…Overall, researchers have noted that the pulse duration of the applied high-voltage pulse has a significant influence on the radical yield; shorter pulses result in higher yields [16,22,17,18]. To study and understand this phenomenon, we have developed a flexible nanosecond pulse source that produces (sub)nanosecond pulses [24,25,26,27].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub)nanosecond voltage pulses

Huiskamp

Sengers²,

Beckers

et al. 2017

Plasma Sources Sci. Technol.

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• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication Citation for published version (APA):Huiskamp, T., Sengers, W., Beckers, F. J. C. M., Nijdam, S., Ebert, U. M., van Heesch, E. J. M., & Pemen, A. J. M. (2017). Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub)nanosecond voltage pulses. Plasma Sources Science and Technology, 26(7), 075009. DOI: 10.1088/1361-6595/aa7587General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract. We use (sub)nanosecond high-voltage pulses to generate streamers in atmospheric-pressure air in a wire-cylinder reactor. We study the effect of reactor length, pulse duration, pulse amplitude, pulse polarity, and pulse rise time on the streamer development, specifically on the streamer distribution in the reactor to relate it to plasma-processing results. We use ICCD imaging with a fully automated setup that can image the streamers in the entire corona-plasma reactor. From the images, we calculate streamer lengths and velocities. We also develop a circuit simulation model of the reactor to support the analysis of the streamer development. The results show how the propagation of the high-voltage pulse through the reactor determines the streamer development. As the pulse travels through the reactor, it generates streamers and attenuates and disperses. At the end of the reactor, it reflects and adds to itself. The local voltage on the wire together with the voltage rise time determine the streamer velocities, and the pulse duration the consequent maximal streamer length.Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub

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Section: Introductionmentioning

confidence: 99%

Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub)nanosecond voltage pulses

Huiskamp

Sengers²,

Beckers

et al. 2017

Plasma Sources Sci. Technol.

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“…2 Electric discharge plasma has been widely studied as a low cost and high energy efficiency exhaust gas treatment method in recent years [9][10][11]. However, more improvements are still required, especially in energy consumption, to make this technology viable in commercial use [1].…”

Section: Introductionmentioning

confidence: 99%

“…They also showed that using a real diesel exhaust gas increased the ability of NTP in removing NOx due to the presence of carbonaceous soot. In 2010, Matsumoto et al [10] developed a nano-second pulse generator and indicated that a shorter pulse duration showed a great improvement in energy efficiency of NO removal. The gas cylinders of N2 and NO in N2 were used to simulate the exhaust gas.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Talebizadeh

Rahimzadeh

Anaghizi

et al. 2016

IEEE Trans. Dielect. Electr. Insul.

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In this paper, a comprehensive study of a DBD reactor is conducted to investigate the optimum operating conditions of the reactor for NOx treatment. For each parameter, the objective is to find the maximum NOx removal efficiency with the minimum consumed power. Different effective parameters of the reactor i.e. electrode length and diameter, electrode and dielectric materials as well as parameters of power generator, i.e. voltage and frequency, are investigated. The results show that for this configuration, the electrode with 20 cm length and 10 mm diameter has the best performance. Aluminum as the inside electrode material and quartz as the dielectric material are selected. Furthermore, the optimum value for the pulse frequency is 16.6 kHz. For the mentioned optimum conditions, the NOx removal efficiency achieved is equal to almost 82% at the input power of 486 W. Furthermore, the highest achieved NOx removal is almost 92% at the input power of 864 W. The results of this paper can be used to reduce the energy consumption of NTP systems to acceptable levels.

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“…The energy needed to remove NO through individual MEO and MER processes found to be 0.221 g/kWh and 0.769 g/kWh respectively (Table I middle column). At the same time, the NO removal energy efficiency become higher 0.99 g/kWh (Table I middle column) when combined the MEO & MER processes, which is almost 10 times lower than the energy efficiency obtained for NO removal by nanosecond pulsed discharge (12 g/kWh) 38 and non-thermal discharge (∼20 g/kWh) 39 methods. Noteworthy here that the high installation cost of nanosecond pulsed discharge and non-thermal discharge methods makes the present electrochemical (installation cost is very less) approach more economical.…”

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confidence: 79%

Synergistic Effect of Mediated Electrochemical Reduction and Mediated Electrochemical Oxidation on NO Removal by Electro-Scrubbing

Muthuraman

Ramu

Ahn

et al. 2016

J. Electrochem. Soc.

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A combined MER (mediated electrochemical reduction) and MEO (mediated electrochemical oxidation) approach was examined for the first time for the efficient removal of NO by electro-scrubbing. The generation of a mediator (Ni(I) from Ni(II)(CN) 4 2− in 9 M KOH) by electrochemical reduction was identified by the changes in the ORP value and potentiometric titration. The Ni(I) formation found to be 9% (4.3 mM) in 2 h electrolysis, which is decreased to 1.83 mM (4%) during addition of NO demonstrates NO removal occurred. The MER of NO at the cathodic half-cell by electro-scrubbing revealed the formation of NH 3 and N 2 . The reductive removal efficiency of NO was almost 100% up to a gas flow rate of 0.25 g min −1 . At the anodic half-cell, the Co(III) mediator from Co(II)SO 4 in 5 M H 2 SO 4 was generated electrochemically with concomitant conversion of NO to NO 3 − in the solution phase with a removal efficiency of 28%. The combination of MEO and MER with electro-scrubbing demonstrates 97% removal efficiency of NO up to 0.5 g min −1 . The combined removal approach is more suitable for high concentrated NO with energy efficiency of 0. Abundantly generated nitric oxide (NO) gas that includes power plant and steel plant etc., is decomposed by many technologies, such as wet scrubbing, catalytic oxidation, and selective catalytic reduction (SCR).1-3 The reduction of NO leads a combination of cationic intermediates and products, N 2 O, NH 2 OH, N 2 , and NH 3 , in the solution phase. [4][5][6] The reduction products varied depending on the catalyst and experimental conditions: on TiO 2 in the colloid solutions to produce NH 3 ; 4 in heterogeneous catalytic reduction process with NH 3 as the reactant produced N 2 ; 7,8 and N 2 O formed on boron-doped graphene method.9 At the same time, the oxidation of NO leads to the anionic products of NO 2 and NO 3 − . 10,11 Heterogeneous catalytic oxidation at the gas phase produced NO 2 , 12 but solution phase oxidation by ozone and H 2 O 2 produced the NO 3 − product. 1,13 Because of the catalytic reaction, NO is solubilized in an aqueous solution, otherwise it less soluble or insoluble in an aqueous solution.14 Using this approach, many oxidant-15,16 and reductant-17 containing wet-scrubbing processes have been adopted in NO removal. Note that the above methods require a continuous catalyst or reactant feed to make the process sustainable.An electron considered to be a green catalyst and can be feed continuously to regenerate the spent catalyst sustainably. Using this approach, electrogenerated Ce(IV) and Mn(III) mediators have been used to oxidize NOx to NO 3 − in HNO 3 medium. 18,19 In a similar method, electrogenerated Ag(II) with a wet scrubber in the name of 'electro-scrubbing' have used NOx oxidation to NO 2 in a single stage scrubber and NO 3 − in a two stage scrubber column. 20 In the presence of SO 2 in NO oxidation using the electrogenerated Ag(II) mediator in highly concentrated nitric acid have shown NO 2 with 60 to 80% of NO 3 − formation. [21][22][23] Note that unless...

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Energy Efficiency Improvement of Nitric Oxide Treatment Using Nanosecond Pulsed Discharge

Cited by 78 publications

References 18 publications

Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub)nanosecond voltage pulses

Spatiotemporally resolved imaging of streamer discharges in air generated in a wire-cylinder reactor with (sub)nanosecond voltage pulses

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Synergistic Effect of Mediated Electrochemical Reduction and Mediated Electrochemical Oxidation on NO Removal by Electro-Scrubbing

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