NOx removal experiment by pulse electron beam irradiation

NO x removal in the gas chamber filled with atmospheric pressure NO/N 2 gas was investigated by injection of the pulse electron beam of 160keV energy, beam current of 140A, current density of 2A/cm 2 , pulse width of 0.7 µs and electron beam power of 12.6J/pulse, or the electron beam of 120keV, 10A,...

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Bibliographic Details
Published in2000 13th International Conference on High-Power Particle Beams pp. 653 - 656
Main Authors Nakagawa, Y., Kawauchi, H., Kishi, T., Kodera, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2000
Subjects
Electron beams
Generators
Marx generator
NO x
pulse electron beam
removal efficiency
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Summary:NO x removal in the gas chamber filled with atmospheric pressure NO/N 2 gas was investigated by injection of the pulse electron beam of 160keV energy, beam current of 140A, current density of 2A/cm 2 , pulse width of 0.7 µs and electron beam power of 12.6J/pulse, or the electron beam of 120keV, 10A, 2.5µs and 2.8J/pulse. Optimum energy efficiency of NO x removal in NO/N 2 gas depends strongly on the operating parameters. The efficiency increased for the large volume of gas chamber, dense initial NO concentration and relatively low electron beam power at small removal ratio. The efficiencies increased to 900nmol/J when the electron beam with 0.1∼0.35J/pulse was injected into the gas mixture of NO(=200ppm)/N 2 . Pulse electron beam source for NO x removal experiment was improved to increase the output electron beam power as compared with the stored energy of the Marx generator. The injected electron beam power increased to 46% of the stored energy by using an active plasma cathode.