Pulsed corona

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. 

Masuda, S. (1998) Pulse corona induced plasma chemical process a horizon of new plasma chemical technologies, Pure Appl. Chem. 60, 727-31. 

Georgescu, N., Minea, R. and Lungu, C.P. (2005) Depollution experiments with repetitive pulsed corona plasmas, J. Optoel. Adv. Materials 7, 2501-7. 

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. 

Huang, L. and Matsuda, H. (2004) Removal of NO by a pulsed-corona reactor combined with in situ absorption, AIChE J. 50, 2676-81. 

L8. Loeb, L. B., The Threshold for the positive pre-onset burst pulse corona and the production of ionizing photons in air at atmospheric pressure, Phys. Rev. 73, 798 (1948). 

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. 

Figure 20 Schematic of two configurations for a pulsed corona reactor (a) ground electrode submerged in liquid and (b) ground electrode suspended above the liquid surface. The immersed electrode in both cases is a point electrode (reprinted with permission from Grymonpre et al, 2004 Copyright 2004 American Chemical Society). For a variety of other reactor configurations, see Locke et al. (2006).

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... 

As an example related to the energy consumption. Figure 3 shows the comparison of 5 different NTP reactors for the removal of 200 ppmv benzene as a model VOC. Regardless of the reactor type, gas-phase homogeneous NTPs (i.e. DBD, SD and pulsed corona) showed similar performances. The PDC reactor packed with l,0wt%-Ag/TiO2 catalyst indicated much... 

Pulsed Corona NHn-loadcd Mordenite 500 Nlli (preadsorbed on the catalyst) 70 3000 90 -100 ... 

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