Positive pulsed corona discharge process for simultaneous removal of SO{sub 2} and NO{sub x} from iron-ore sintering flue gas
Journal Article
·
· IEEE Transactions on Plasma Science
OSTI ID:687457
- Research Inst. of Industrial Science and Technology, Pohang (Korea, Republic of). Protection Research Team
The authors investigated the application of pulsed corona discharge process to the removal of SO{sub 2} and NO{sub x} from industrial flue gas of an ioron-ore sintering plant. This study was performed on a pilot scale, which is the most advanced demonstration of this process. The flow rate of 5000 m{sup 3}/h of the flue gas was successfully treated. The electrode structure of the corona reactor is the same with that of conventional electrostatic precipitator. The authors made use of magnetic pulse compression technology to produce repetitive high voltage pulse. Pulse width (full width at half maximum) was reduced to less than 1 {micro}s by connecting a resister in parallel with the corona reactor. An inductor was added to the resister in series to minimize the loss by restricting the current flowing through the resister. By this way, they were able to deliver pulse power with peak voltage of 110 kV and peak current of 2.3 kA to the corona reactor. Chemical additives such as ammonia (NH{sub 3}) and propylene (C{sub 3}H{sub 6}) were used to increase the removal efficiencies of SO{sub 2} and NO{sub x}.
- OSTI ID:
- 687457
- Journal Information:
- IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 4 Vol. 27; ISSN ITPSBD; ISSN 0093-3813
- Country of Publication:
- United States
- Language:
- English
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