Abstract: Non-thermal plasma technologies offer an innovative approach to
decomposing various volatile organic compounds (VOCs). The decomposition of
toluene from simulated flue gas was investigated using a pipe electrode with
nozzles for the generation of free radicals. Corona characteristics and
decomposition of toluene were investigated experimentally. In addition, the
decomposition mechanism of toluene was explored in view of reaction rate. The
experimental results showed that the humidity of additional gas has an
important effect on corona characteristics and modes and stable streamer corona
can be generated through optimizing flow rate and humidity of additional gas.
Applied voltage, concentration of toluene, humidity of toluene and resident
time are some important factors affecting decomposition efficiency. Under
optimizing conditions, the decomposition efficiency of toluene can reach 80%.
These results can give a conclusion that the corona radical shower technology
is feasible and effective on the removal of toluene in the flue gas.