Reduction of Sulfur Dioxide Using Microwave Discharge Techniques.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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Sulfur dioxide concentrations were reduced in a microwave discharge to investigate a possible system for industrial application. An 85 watt, 2450 MHz microwave power generator and resonant cavity were used to sustain the discharge in a low pressure system. Static discharge tests of varied time duration were conducted to determine the dependence of SO2 reduction on molecular residence time. The reduction of pure SO2 in the discharge resulted in the formation SO3 and S. The net reduction of SO2 was unacceptable for industrial use thus, leading to investigations of SO2 mixed with selected gases. Carbon dioxide and C2H4 were effective in improving the net reduction of SO2 in short term discharges 5-20 sec. A flow system was established to simulate an industrial gas flow however, realistic volumetric flow rates could not be achieved due to restraints imposed by the experimental apparatus. A pure SO2 and a SO2-C2H4 mixture was investigated. Author
- Physical Chemistry