Abstract. With the intensified r黃拍equirements on ambient air quality, 內厭controlling NOx emission from sintering flue gas has become t畫劇he most important priority i理我n steel industry. Ozone oxidation謝刀 denitration process has become the most closely wat分區ched sintering flue ga會資s denitration technology. In 畫理order to investigate the influence of differ男商ent operating conditi服歌ons on NO oxidation i黃刀n practical engineerin外討g application of ozone oxidation den和店itration process, an ozon低話e oxidation system was built, and sin很對tering flue gas was extracted from the pipeline bet火銀ween the induced draft fan and the裡海 desulfurization tower. The influence of discharge power and O₂ flow rate of ozone gen農場erator on O₃ concentration, O₃ yield and NO oxidation efficiency we爸聽re investigated. The results indica靜姐ted that NO oxidation黃商 efficiency increased with the 光快discharge power. And家樂 the increase of O₃ dosage imposed a significan身家t influence on NO oxi木場dation efficiency.&nbs厭兒p;However, little effect of公件 O₂ flow rate on NO oxidatio窗紅n efficiency was observed.