Gas cleaning with semi-wet type plasma reactor

Journal Article · Mon May 01 04:00:00 EDT 1995 · IEEE Transactions on Industry Applications

DOI:https://doi.org/10.1109/28.382109· OSTI ID:64396

Chakrabarti, A ^[1]; Mizuno, Akira; Shimizu, Kazuo; Furuta, Satoshi ^[2]; Matsuoka, Tsutomu ^[3]

---

1. McMaster Univ., Hamilton, Ontario (Canada)
2. Toyohashi Univ. of Technology (Japan). Dept. of Ecological Engineering
3. Tokyo Electric Power Co., Ltd., Tokyo (Japan)

An experimental study on the removal of NH{sub 3}, NO, NO{sub x} in concentration of 10--40 ppm in air has been carried out using plasma chemical reactions in a streamer corona discharge. The results of the performance of dry type and semi-wet type reactors are compared. The effects of different type of applied voltages such as rectangular pulse, 60-Hz sinusoidal, and 18-kHz alternating voltages are investigated. During NO removal, O{sub 3} and NO{sub 2} are produced. NO{sub 2} can, partially, be removed with higher power input into the discharge. Another undesirable pollutant, namely N{sub 2}O, is also produced, especially, in case of dry reactors having long residence time ({approximately}2.4 s). N{sub 2}O production decreases, essentially, to zero at 0.6-s residence time while using a semi-wet reactor. In general, higher removal efficiency has been obtained with pulse voltage in a semi-wet reactor. HN{sub 3} in air appears to produce ozone and ammonium nitrate in a discharge. The performance of semi-wet reactors on the removal of submicron dust particles has also been investigated and very high removal efficiency ({approximately}93% at 0.6-s residence time) has been obtained.

• OSTI ID: 64396
• Report Number(s): CONF-9310285--
• Journal Information: IEEE Transactions on Industry Applications, Journal Name: IEEE Transactions on Industry Applications Journal Issue: 3 Vol. 31; ISSN 0093-9994; ISSN ITIACR
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
AMMONIA
CORONA DISCHARGES
FLUE GAS
HOT GAS CLEANUP
NITROGEN OXIDES
NITROUS OXIDE
POLLUTION CONTROL EQUIPMENT