Pollution Control of Actual Flue Gas using Pulsed Power at a Thermal Power Plant

Abstract

There are several important environmental problems in the world. One of them is the acid rain caused by combustionflue gases from thermal power plants, factories and automobiles. Different kinds of gas discharges, such as surface discharge, dc and ac corona discharge, silent discharge, and electron beam controlled discharge, have been studied for the removal NO_x and SO₂ from flue gases. The recent development of repetitive pulsed power generators gives the pulsed streamer coronadischarges a chance of success in the removal of NO_x and SO₂.
In this paper, the experimental results of NO_x and SO₂ removal by a repetitive pulsed power generator are described.The actual flue gas at a thermal power plant was used. It is shown that about 90% of the NO was removed at a flow rate of0.81/min and a repetition rate of 7pps.