REMOVAL OF SO 2 AND NO FROM GAS STREAMS WITH COMBINED PLASMA PHOTOLYSIS

ABSTRACT: Combined plasma photolysis (CPP) has been developed and experi-mentally demonstrated as a new method to simultaneously remove SO, and NO from gas streams. This laboratory-scale device integrates the use of a dielectric barrier discharge (DBD) plasma and ultraviolet radiation. The composition, tem-perature, and pressure of the treated gas streams imulate gases typically generated by the combustion of fossil fuels. Simultaneous removal efficiencies for SO2 and I~O are as high as 29 % and 79%, respectively. CPP enhances SO_ ~ removal effi-ciencies by 25 % when compared to using DBDs only. NO removal efficiency achieved by CPP is 9 % less than NO removal efficiency achieved by DBDs only. SO 2 and NO removal efficiencies are limited by the power deposited into the gas stream that could be achieved with the existing power supply. This new device shows promise as a new technique to simultaneously remove SO: and NO from gas streams generated by the combustion of fossil fuels