Comparison of reactor performance in the nonthermal plasma chemical processing of hazardous air pollutants

Author

Futamura, Shigeru ; Einaga, Hisahiro ; Zhang, Aihua

Author_Institution

Nat. Inst. for Resources & Environ., Ibaraki, Japan

Volume

2

fYear

1999

fDate

1999

Firstpage

1105

Abstract

The performances of three different types of plasma reactors such as ferroelectric packed-bed (FPB), pulsed corona (PCR), and silent discharge (SDP) were compared in the decomposition of trichloroethylene (Cl₂C=CHCl, TCE), bromomethane (CH₃Br), and tetrafluoromethane (CF₄). Irrespective of reactors, HAP (hazardous air pollutants) reactivity decreased in the order: TCE>CH ₃Br>CF₄. Similar byproducts were obtained with any of the above reactors, and similar trends were observed in the HAP decomposition rate-retarding effect by gaseous oxygen and water. In the TCE decomposition, PCR was extremely effective and 1000 ppm of TCE almost completely decomposed in dry nitrogen at 0.09 s of residence time, but its performance went down in the CH₃Br decomposition. Comparable performances were observed for FPB and SDP, and CF₄ conversions were little higher with SDP than with FPB at the same specific energy densities

Keywords

air pollution control; corona; plasma applications; plasma devices; HAP decomposition rate-retarding effect; HAP reactivity; bromomethane; ferroelectric packed-bed reactor; gaseous oxygen; hazardous air pollutants; nonthermal plasma chemical processing; plasma reactors; pulsed corona reactor; reactor performance; silent discharge reactor; tetrafluoromethane; trichloroethylene; water; Chemical hazards; Chemical processes; Chemical reactors; Corona; Ferroelectric materials; Inductors; Plasma applications; Plasma chemistry; Plasma materials processing; Plasma properties;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.801642

Filename

801642