Pulsed Corona Discharges

Water treatment parameters Pulsed arc discharges Spark discharges Pulsed corona discharges... 

Zhao et al. [74] developed a kinetic model to analyze the removal of nitrogen oxides in a pulsed corona discharge in NO/N2 mixtures. They considered reactions of NO and N02 with N and O atoms and with excited N2(A3S) molecules. 

Kim, Y.-H. and Hong, S.H. (2002) Two-dimensional simulation images of pulsed corona discharges in a wire-plate reactor, IEEE Trans. PI. Sci. 30, 168-9. 

Orlandini, I. and Riedel, U. (2000) Chemical kinetics of NO removal by pulsed corona discharges, J. Phys. D Appl. Phys. 33, 2467-74. 

C.A. HiU and C.L.P. Thomas, A pulsed corona discharge switchable high resolution ion mobility spectrometer-mass spectrometer, Analyst 128(1) (2003) 55-60. 

Sato, M Sun, B Ohshima, T Sagi, Y. Characteristics of active species and removal of organic compounds by a pulsed corona discharge in water. Journal of Advanced Oxidation Technologies, 1999 4, 339-342. 

Grymonpre, DR. An experimental and theoretical analysis of phenol degradation by pulsed corona discharge. PhD Thesis. Tallahassee Florida State University 2001. 

Electrox A process for removing atmospheric pollutants by passing the air through a pulsed corona discharge between concentric metal cylinders. Developed by AEA Technology from 1998. 

The NOx removal process was studied experimentally in a pulsed corona discharge combined with the Ti02 photocatalytic reaction [387]. N02 was found to adsorb easily on the photocatalyst surface, whereas NO was hardly adsorbed. Addition of water vapor enhanced the N02 adsorption. It was concluded that the main role of the plasma-chemical reaction in this system is the oxidation of NO into N02. A considerable part of N02 is adsorbed on the photocatalyst surface, and is transformed to HN03 through photocatalytic reaction with OH. 

Liu, J.B., P. D. Ronney, and M.A. Gundersen. 2002. Premixed flame ignition by pulsed corona discharges. W estern States Meeting of The Combustion Institute Proceedings. San Diego, CA. 

Keywords nonihemial plasma (NTP) catalyst diclcctric-barricr discharge plasma-driven catalysis pulsed corona discharge air pollution VOCs NOx... 

Vogilin, G. E. and Penetrantc. B. M. Book Pulsed corona discharge for removal of NOx from flue gas" Springer-Verlag New York, 1993, Part B... 

Kim. H. H, Takashima, K. Katsura, S. and Mizuno. A. Low-temperature NOx reduction processes using combined systems of pulsed corona discharge and catalysts 3. 

Applications of the continuous coronas are limited by low cmrent and power, which results in a low rate of treatment of materials and exhaust streams. Increasing the corona power without transition to sparks becomes possible by using pttlse-periodic voltages. The pulsed corona is one of the most promising atmospheric-presstrre, non-thermal discharges. The streamer velocity is about 10 cm/s and exceeds by a factor of 10 the typical electron drift velocity in an avalanche. If the distance between electrodes is about 1-3 cm, the total time necessary for the development of avalanches, avalanche-to-streamer transition, and streamer propagation between electrodes is about 100-300 ns. Therefore, the voltage pulses of this... 

Figure 4-92. 10-kW pulsed corona discharge, view from one of six windows. 

Figure 4-93. General schematie of a pulsed corona discharge in the wire-cylinder configuration with preheating.

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