Title :
Reduction of NOx from natural gas combustion flue gases by corona discharge radical injection techniques [thermal power plant emissions control]
Author :
Urashima, Kuniko ; Chang, Jen-Shih ; Park, Jae-Yoon ; Lee, Duck-Chool ; Chakrabarti, Alok ; Ito, Tairo
Author_Institution :
Musashi Inst. of Technol., Tokyo, Japan
Abstract :
An experimental investigation has been conducted to reduce NOx in natural gas combustion flue gases by means of corona-discharge-activated ammonia/methane radical injection methods. Multihole-type corona radical injectors are used in the present investigation. Experiments were conducted for the simulated natural gas combustion flue gas (N2:O2:CO2:NO=83.96:8:8:0.04) flow rate from 1 to 200 L/min, the activation voltage (DC or pulse) from 0 to 40 kV, and the Ar-ammonia or Ar-methane mixture gases flow rate from 0 to 200 mL/min. The results show that the NOx reduction increases with increasing activation voltage and nonmonotonically depends on ammonia/methane stoichiometry
Keywords :
air pollution control; combustion; corona; fuel; nitrogen compounds; thermal power stations; 0 to 40 kV; NO; NOx reduction; activation voltage; air emissions control; ammonia/methane stoichiometry; corona discharge radical injection; flow rate; flue gases; gas mixtures; multihole-type corona radical injectors; natural gas combustion; thermal power plants; Combustion; Corona; Flue gases; Indium tin oxide; Industry Applications Society; Natural gas; Physics; Plasmas; Switches; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
