Patent ID: 6245299
Filing Date: 2001-06-12
Classification: B01D,B01J

Abstract:
A device for destroying unwanted gaseous species in a gas stream, the device comprising:(a) a plurality of DBD cells in series, wherein each cell includes an input end adapted for admitting the gas stream into the cell and an output end adapted for discharging the gas stream from the cell;(b) a first cell and a second cell of the plurality of DBD cells, wherein the input end of the second cell is adapted for receiving the gas stream that is discharged from the output end of the first cell;(c) a first electrode and a second electrode for each of said DBD cells, wherein the first and second electrodes are adapted for a position substantially parallel to the gas stream;(d) a dielectric layer proximal at least a first of the first and second electrodes of each of said DBD cells wherein the dielectric layer is adapted for a position between the first of the first and second electrodes, and the gas stream; and(e) an independent power supply for each of said DBD cells for providing alternating current to the first and second electrodes of each DBD cell, wherein each of the plurality of cells is adapted for forming a plasma such that gaseous species are destroyed through plasma chemistry.