HYDROGENATED TIO₂ DENITRATION CATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

摘要

The present invention relates to the technical field of flue gas denitration catalysts. Disclosed are a hydrogenated TiO₂ denitration catalyst, a preparation method therefor, and application thereof. The hydrogenated TiO₂ denitration catalyst has a crystal form of anatase, has oxygen vacancies and surface hydroxyl groups. The hydrogenated TiO₂ denitration catalyst contains TiO₂, SO₃, and P₂O₅; and based on the total weight of the hydrogenated TiO₂ denitration catalyst, the content of TiO₂ is 98-99.8% by weight, the content of SO₃ is 0.2-1% by weight, and the content of P₂O₅ is 0.1-0.2% by weight. The hydrogenated TiO₂ denitration catalyst has a high denitration activity at 300-400°C and a high selectivity of N₂ of over 85%, and is applicable to NH₃-SCR denitration.