Decomposition of volatile organic compounds and nitric oxide by nonthermal plasma discharge processes

Mok, Young Sun; Nam, Chang Mo; Cho, Moo Hyun; Nam, In−Sik

doi:10.1109/tps.2002.1003889

Cited by 88 publications

(13 citation statements)

References 21 publications

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“…Liu et al [114] [44]. In addition, the highest •OH concentration was observed in Ar atmosphere, followed by air atmosphere, and the lowest was observed in oxygen [116,117]. It is known that + N 2 can be generated in the discharge plasma process, which can result in the generation of •OH via reaction with H 2 O (see equation 67).…”

Section: •Oh Measurementmentioning

confidence: 99%

“…It is known that + N 2 can be generated in the discharge plasma process, which can result in the generation of •OH via reaction with H 2 O (see equation 67). Ar can also be excited by high-energy electrons to form Ar + , which then reacts with H 2 O molecules to form •OH radicals (equations (78) and (79)) [116,118]. Although OES diagnosis can be used to analyze the •OH formation process and spatial distribution, it is unable to actually calculate the absolute •OH concentration.…”

Section: •Oh Measurementmentioning

confidence: 99%

“…Our previous research evaluated •OH generation via OES analysis in a gas-liquid pulsed discharge plasma combined with nano-TiO 2 system, and found that appropriate levels of nano-TiO 2 addition could increase the relative intensity of •OH [44]. In addition, the highest •OH concentration was observed in Ar atmosphere, followed by air atmosphere, and the lowest was observed in oxygen [116,117]. It is known that + N 2 can be generated in the discharge plasma process, which can result in the generation of •OH via reaction with H 2 O (see equation (67)).…”

Section: •Oh Measurementmentioning

confidence: 99%

“…It is known that + N 2 can be generated in the discharge plasma process, which can result in the generation of •OH via reaction with H 2 O (see equation (67)). Ar can also be excited by high-energy electrons to form Ar + , which then reacts with H 2 O molecules to form •OH radicals (equations ( 78) and ( 79)) [116,118]. •OH formation and dynamics on the water surface were also evaluated in the discharge plasma process [111,[122][123][124].…”

Section: •Oh Measurementmentioning

confidence: 99%

See 3 more Smart Citations

Review on reactive species in water treatment using electrical discharge plasma: formation, measurement, mechanisms and mass transfer

Cao

2018

Plasma Sci. Technol.

108

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Section: •Oh Measurementmentioning

confidence: 99%

Section: •Oh Measurementmentioning

confidence: 99%

Section: •Oh Measurementmentioning

confidence: 99%

Section: •Oh Measurementmentioning

confidence: 99%

See 2 more Smart Citations

Review on reactive species in water treatment using electrical discharge plasma: formation, measurement, mechanisms and mass transfer

Cao

2018

Plasma Sci. Technol.

108

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“…The treatment of VOC by non-thermal plasma has been studied in laboratory for more than twenty years [3][4][5] and has been the object of some pilot experiments [6][7][8][9][10][11]. Most published works follow the same approach: for a given set of experimental conditions, researchers vary the power dissipated in the plasma and measure the amount of VOC removed.…”

Section: Introductionmentioning

confidence: 99%

Non-thermal plasma treatment of volatile organic compounds: A predictive model based on experimental data analysis

Nobrega

Rohani

Fulcheri

2019

Chemical Engineering Journal

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Non-thermal plasma is an emerging alternative for removing VOC from polluted air streams. This technique has been studied in laboratory for more than twenty years and experimental data is abundant. However, mostly qualitative information has been obtained from that data and no model has been developed for predicting the treatment performance from a given set of parameters. In this paper, we establish such a model, based on experimental data extracted from 69 scientific publications. This model, obtained through a linear regression, uses both quantitative and qualitative variables to predict the energy yield of the treatment. In 80 % of the data points, the measured energy yield lies between 0.6 and 1.75 times the predicted value. We also used the model to evaluate quantitatively the impact of several parameters of the treatment, such as the initial concentration, the presence of a catalyst or the reactor type. Being so, the model presented here is an invaluable tool for both scientists and engineers interested in the treatment of VOC by non-thermal plasma.

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Removal of 2‐Heptanone by Dielectric Barrier Discharges – The Effect of a Catalyst Support

Blin-Simiand¹,

Tardiveau²,

Risacher³

et al. 2005

Plasma Processes & Polymers

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Summary: 2‐heptanone is representative of a class of odorous molecules. Recent studies have shown that by adding a catalyst to a dielectric barrier discharge (DBD) plasma, the elimination of 90% of this molecule can be achieved with low consumption of electric energy, at room temperature, for concentrations below 1 000 ppm. In the presented work, the removal of the ketone by DBD, both in dry air and within a slice of a honeycomb monolith of cordierite without a catalyst, was studied. In both experiments, the discharge was operated in a plane‐to‐plane geometry with a discharge volume of 10 cm3. A high voltage, bipolar pulse generator (40 kV max, 1–140 Hz frequency range) was used. In dry air, it was found that 2‐heptanone is almost totally removed (>95%) for a specific deposited energy of about 500 J · l−1, but this elimination is less effective in the porous cordierite reactor (80%) for the same energy. This effect is explained by the very different spatial distribution of the plasma within the discharge volume, as seen using a CCD camera. Moreover, the adsorption‐desorption equilibrium of the molecule at the surface of the material is greatly influenced by the discharge.

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Decomposition of volatile organic compounds and nitric oxide by nonthermal plasma discharge processes

Cited by 88 publications

References 21 publications

Review on reactive species in water treatment using electrical discharge plasma: formation, measurement, mechanisms and mass transfer

Review on reactive species in water treatment using electrical discharge plasma: formation, measurement, mechanisms and mass transfer

Non-thermal plasma treatment of volatile organic compounds: A predictive model based on experimental data analysis

Removal of 2‐Heptanone by Dielectric Barrier Discharges – The Effect of a Catalyst Support

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