Application of removal of NOx by gas liquid two phase dielectric barrier discharge

摘要

The removals of NOx by low temperature plasma produced from gas-liquid two phase dielectric barrier discharge(DBD) were investigated, also studied the major particles information of gas-liquid two phase DBD by emission spectroscopy, and analyzed effects of peak voltage, gas residence time, gas flow rate and NOx initial concentration to the removal of NOx. The results show that OH radicals spectral intensity of gas-liquid two phase DBD is far more than plate plate electrode DBD, so it is more adapt to the removal of NOx. Increasing the peak voltage and gas residence time is good for reduction of NOx, increasing gas flow rate and NOx initial concentration have inhibitory effect on NOx removal. The results have a guiding significance on the application of NOx removal by low temperature plasma.