NDLI: Combined Effects of Pulsed Discharge Removal of NO, SO$_{2}$, and NH$

Content Provider	Springer Nature Link
Author	van Veldhuizen, E. M. Zhou, L. M. Rutgers, W. R.
Copyright Year	1998
Abstract	Experiments have been performed using pulsed high-voltage discharges with the aim of removing NO and SO $_{2}$ from flue gas obtained from a methane burner. It is found that the NO conversion is strongly increased by the addition of SO $_{2}$ or NH $_{3}$ . When both gases are added simultaneously the increase almost disappears. The synergetic effect can be maintained, as is shown, when NH $_{3}$ is introduced much later than SO $_{2}$ . The SO $_{2}$ removal is already 70% upon stoichiometric addition of NH $_{3}$ , but the electric discharge improves this to >95% and reduces the NH $_{3}$ leak to a few ppm. This increase is probably related to aerosol production by the pulsed discharge which enhances the ammonium salt production. A so-called “history effect” is observed, i.e., the removal of NO and SO $_{2}$ depends on the time that is taken to reach the required energization. It appears that the discharge has to create favorable conditions for the cleaning process. Using the synergetic and history effects the best cleaning result, at initial concentrations of 300 ppm, is 80% NO removal and 95% SO $_{2}$ removal with 3 ppm NH $_{3}$ leak. In this case the energy cost is 13 eV/NO (or a yield of 90 g NO and 200 g SO $_{2}$ per kWh). Possibilities for further improvement are indicated.
Starting Page	91
Ending Page	111
Page Count	21
File Format	PDF
ISSN	02724324
Journal	Plasma Chemistry and Plasma Processing
Volume Number	18
Issue Number	1
e-ISSN	15728986
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1998-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry Characterization and Evaluation Materials Mechanics Nuclear Physics, Heavy Ions, Hadrons Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Surfaces, Coatings and Films Condensed Matter Physics Chemical Engineering

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