Corona-induced chemical scrubber for the control of NO{sub x} emissions

Journal Article · Thu Dec 31 04:00:00 EST 1998 · Environmental Progress

DOI:https://doi.org/10.1002/ep.670170317· OSTI ID:302281

Yang, C L; Beltran, M; Kravets, Z ^[1]; Yamamoto, Toshiaki ^[2]

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1. Beltran Associates Inc., Brooklyn, NY (United States)
2. Osaka Prefecture Univ., Sakai, Osaka (Japan)

Two dielectric materials (barium titanate and glass pellets) were evaluated for their ability to decompose/oxidize nitric oxide (NO) by nonthermal plasma discharge. Both barium titanate and glass pellets were tested in a packed bed dielectric barrier plasma reactor. The plasma reactor using barium, titanate completely destroys 130 ppm of NO in an air stream at an electric field strength of 9 kV/cm. A majority of the incoming NO is decomposed to N{sub 2} and O{sub 2}. However, 30% of the NO is oxidized to NO{sub 2}. The plasma reactor using glass pellets in a similar system is just as effective, but at a 3 k V/cm higher electric field strength. The 40 ppm NO{sub 2} in the effluent of the plasma reactor is then removed quantitatively by a caustic sodium sulfite aqueous scrubbing system. The outlet concentrations of both NO and NO{sub 2} from the plasma-scrubber combination system (corona-induced chemical scrubber) are beyond the detection limit of the chemiluminescent NO{sub x} analyzer.

• Sponsoring Organization: USDOE
• OSTI ID: 302281
• Journal Information: Environmental Progress, Journal Name: Environmental Progress Journal Issue: 3 Vol. 17; ISSN 0278-4491; ISSN ENVPDI
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
EMISSION
NITROGEN OXIDES
PERFORMANCE TESTING
SCRUBBERS