Experimental facility for investigation of gaseous pollutants removal process stimulated by electron beam and microwave energy

A laboratory unit for the investigation of toxic gases removal from flue gases based on an ILU 6 accelerator has been built at the Institute of Nuclear Chemistry and Technology. This installation was provided with independent pulsed and continuous wave (c.w.) microwave generators to create electrical discharge and another pulsed microwave generator for plasma diagnostics. This allows to investigate a combined removal process based on the simultaneous use of the electron beam and streams of microwave energy in one reaction vessel. Two heating furnaces, each of them being a water-tube boiler with 100 kW thermal power, were applied for the production of combustion gas with flow rates 5-400 Nm3/h. Proper composition of the flue gas was obtained by introducing such components as SO2, NO and NH3 to the gas stream. The installation consists of: inlet system (two boilers - house heating furnace, boiler pressure regulator, SO2, NO and NH3 dosage system, analytical equipment); reaction vessel where the electron beam from ILU 6 accelerator and microwave streams from the pulse and c.w. generators can be introduced simultaneously or separately and plasma diagnostic pulsed microwave stream can be applied; outlet system (retention chamber, filtration unit, fan, off-take duct of gas, analytical equipment). The experiments have demonstrated that it is possible to investigate the removal process in the presence of NH3 by separate or simultaneous application of the electron beam and of microwave energy streams under stable experimental conditions. (author). 15 refs, 26 figs, 5 tabs