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Reduction of a Simulated Tar Using a Gliding Arc Plasma Reformer

Thermal decomposition/gasification technology utilizes an energy conversion technique from various waste resources, such as biomass, solid waste, sewage sludge, etc for generating syngas. However, in thermal decomposition of gases during the process tar might cause the damage and create operating problem to the facility. In this study, a gliding arc plasma reformer was developed to solve the previously acknowledged issues. In addition, the experiments on the variables that can affect the removal efficiency were conducted to provide the optimal operating conditions. The optimal operating conditions are 2 of Steam/Carbon ratio for steam input amount, 0.98 kWhm-3 of SEI for specific energy input, 14 L/min of a total gas amount, 3.6% of initial benzene concentration, 300℃ of input temperature, 1.5 mm of nozzle diameter, 3 mm of electrode gap distance and 95 mm of electrode length. In this case, the maximum benzene decomposition efficiency and energy efficiency are about 95% and up to 120 g/kWh, respectively.