Title: On the removal of NOx and SOx in exhaust gas from the sintering machine by electron beam irradiation
Abstract: The effects of several factors—the reaction temperature, content of the added NH3, total dose, SOx content, and gas cooling method, on the removal of the NOx and SOx by electron beam irradiation were investigated in more details using a pilot plant of 3000 Nm3/h (max gas flow rate: 10000 Nm3/h) which was set up to treat exhaust gas from the sintering machine in a steel plant. Both removals of NOx and SOx were increased with decreasing reaction temperature at the temperatures below 130°C, but the NOx-removals alone reached a peak at 70°C and were decreased below 70°C. The content of the NH3 considerably affected the NOx-removals particularly at the total dose more than 1 Mrad. The SOx-removals were greater in case where the gases were cooled by the cooling tower than by the heat exchanger. A series of the irradiations of the air-NH3 mixtures was also carried out with the pilot plant to study the formation of NOx and N2O by irradiation. The total amounts of the nitrogen in NOx-state produced by the irradiation were nearly constant regardless of the NH3 content, although the NH3 suppressed the NOx formation and enhanced the N2O formation in the gases. Based on these results, the reaction mechanism of the NO decrease and the N2O formation were discussed.
Publication Year: 1980
Publication Date: 1980-01-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 19
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot