Coupled surface dielectric barrier discharge reactor-ozone synthesis and nitric oxide conversion from air

Malik, Muhammad Arif; Schoenbach, K.H.; Heller, Richard

doi:10.1016/j.cej.2014.07.003

Cited by 56 publications

(17 citation statements)

References 40 publications

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“…Hence, before using SDBD in any application, the trends of the ozone production and the generation of nitrogen oxides should be characterized. Few works on the ozone production using different SDBD sources under different conditions exist [11,[30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Abdelaziz

Ishijima

Seto

et al. 2016

Plasma Sources Sci. Technol.

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The aim of this study is to investigate the effect of the intermediate frequency (1-10 kHz) of the sinusoidal driving voltage on the characteristics of a developed surface dielectric barrier discharge (SDBD)-based reactor having spikes on its discharge electrode. Moreover, its influence on the production of ozone and nitrogen oxide byproducts is evaluated. The results show that SDBD is operated in the filamentary mode at all the frequencies. Nevertheless, the pulses of the discharge current at high frequencies are much denser and have higher amplitudes than those at low frequencies. The analysis of the power consumed in the reactor shows that a small portion of the input power is dissipated in the dielectric material of SDBD source, whereas the major part of the power is consumed in the plasma discharge. The results of the ozone production show that higher frequencies have a slightly adverse effect on the ozone production at relatively high energy density values, where the ozone concentration is slightly decreased when the frequency is increased at the same energy density. The temperature of the discharge channels and gas is not a crucial factor for the decomposition of ozone in this reactor, while the results of the measurements of nitrogen oxides characteristics 2 indicate that the formation of NO and NO 2 has a significant adverse effect on the production efficiency of ozone due to their oxidation to another nitrogen oxides and their catalytic effect.

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Section: Introductionmentioning

confidence: 99%

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Abdelaziz

Ishijima

Seto

et al. 2016

Plasma Sources Sci. Technol.

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“…The maximum production efficiency of the ozone generator can be as low as 12 kWh/kg. Malik et al [15] studied the performance of a coupled surface discharge structure, the optimized power consumption for which is 16.7 kWh/kg. These clearly demonstrate that O 3 production tends to consume a large amount of energy, which becomes the dominant factor in reducing the commercial acceptance of this approach.…”

Section: Andmentioning

confidence: 99%

Simultaneous removal of SO2 and NOx by a new combined spray-and-scattered-bubble technology based on preozonation: From lab scale to pilot scale

Wang

Yan

et al. 2019

Applied Energy

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A new technology (called here, spray-and-scattered-bubble technology) based on preozonation was designed and tested for simultaneous removal of SO 2 and NOx from power plant flue gas. It combines the advantages of the common spray tower and the jet bubble reactor, in which the flue gas experiences an initial SO 2 /NOx removal in the spray zone and then undergoes further removal in the bubble zone. Factors that affect the simultaneous removal of SO 2 /NOx were investigated through lab-scale experiments, by varying the O 3 /NO molar ratio, liquid/gas ratio and the immersion depth. The results showed the removal of SO 2 and NOx can be significantly improved as compared to a separate spray column or bubble reactor, by as much as 17%, for the spray column and 18% for the bubble reactor for NOx and 11% for the spray column, and 13% for the bubble reactor for SO 2 , for liquid/gas ratio of 4 dm 3 /m 3 or immersion depth of 100 mm. The O 3 /NO molar ratio had little effect on the SO 2 removal, but it strongly affected the removal efficiency of NOx especially when it was less than 1.0. Both the liquid/gas ratio and immersion depth demonstrated a positive correlation with the removal efficiency. However, a balance must be maintained between efficiency and economics, since the liquid/gas ratio directly influences the performance and number of the circulating pumps, and the depth is closely related to the flue gas pressure drop, and both factors affect energy requirements. To further confirm its industrial feasibility, a 30 h test using real coal-fired flue gas was conducted in a pilot-scale experimental facility (flue gas volume of 5000 Nm 3 /h). Increasing SO 2 concentration in flue gas can promote the removal efficiency of NOx, but the SO 2 removal was almost complete under all conditions tested. Finally, taking a 300 MW unit as an example, the total energy cost of this new technology is estimated as being 10% lower than that of the common spray tower technology, based on an analysis using Aspen Plus™, with the largest difference reflected in the energy requirements of the circulating pumps and the ozonizer. Over all, the new technology offers the joint advantages of reducing emissions and saving energy.

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“…Surface dielectric barrier discharge (DBD) can generate uniform plasma layers with large areas at atmospheric pressure, so it is attractive for many industrial applications, such as ozone synthesis [1,2], surface treatment [3,4], thin-film deposition [5,6] and aerodynamic flow control [7][8][9]. Generally, surface DBD is produced in a thin layer along a dielectric surface at room temperature and atmospheric air.…”

Section: Introductionmentioning

confidence: 99%

Optical characteristics of the filamentary and diffuse modes in surface dielectric barrier discharge

Zhang

Jiang

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Coupled surface dielectric barrier discharge reactor-ozone synthesis and nitric oxide conversion from air

Cited by 56 publications

References 40 publications

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Simultaneous removal of SO2 and NOx by a new combined spray-and-scattered-bubble technology based on preozonation: From lab scale to pilot scale

Optical characteristics of the filamentary and diffuse modes in surface dielectric barrier discharge

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