Narrow pulsed corona discharge for depollution

Author

Bajeu, George ; Mustata, Ion ; Lungu, Cristian P. ; Musa, Geavit

Author_Institution

Inst. of Phys. & Technol. of Mater., Bucharest, Romania

fYear

1994

fDate

2-6 Oct 1994

Firstpage

1583

Abstract

For chemical reactions promoted by the electrical discharges, the use of short pulse discharges presents certain advantages over the DC ones. Mainly, the nanosecond pulse duration avoids the energy consumption for ion drifting on one hand and allows high electric fields to be obtained due to the insignificant space charge on the other hand. A nanosecond range pulse generator and the characteristics of the corona discharges in a cylindrical cell are described. Sawtooth pulses having 40 kV peak voltages, 0.36-0.8 kV/ns rising rates, 300 ns full width at half height and 50 Hz repetition frequency are applied on the central electrode of the corona cell. The obtained peak corona currents are over 10 A. This equipment will be used for NO_x and SO₂ removal from flue gas

Keywords

air pollution; air pollution control; corona; flue gas desulphurisation; pollution control; pulse generators; pulsed power technology; thermal power stations; waveform generators; 10 A; 300 ns; 40 kV; 50 Hz; NO; NO_x removal; SO₂; SO₂ removal; cylindrical cell; depollution; electrical discharges; energy consumption; flue gas treatment; ion drifting; nanosecond range pulse generator; narrow pulsed corona discharge; sawtooth pulses; short pulse discharges; space charge; Chemicals; Corona; Electrodes; Energy consumption; Flue gases; Frequency; Pulse generation; Space charge; Space vector pulse width modulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-1993-1

Type

conf

DOI

10.1109/IAS.1994.377638

Filename

377638