한국전력기술

KOPEC obtained a patent on January 31, for the 'Vanadium/Titania Catalyst Containing Vanadium Troxide for Reducing Nitrogen Oxides and Dioxin Emissiions with a Wide Range of Activation Termperature (Patent No. 0549777, Inventor : Lee Jun-Yub, Environment & Energy Research Group, Power Technology Development Center) that improves the low-temperature DeNox performance by increasing the amount of vanadium trioxide in the vanadium/titania catalyst.

While other conventional vanadium/titania catalysts are composed of V₂O₅/TiO_2, the newly patented catalyst contains V₂O₃ and semi-stable compounds with high chemical reactivity at low energy. Therefore, it can remove nitrogen oxides and dioxin emissions at low temperatures for selective catalytic reduction.  

 The new low-temperature NOx catalyst containing vandadium trioxide can also be used at low temperatures like the low-temperature manganese NOx catalyst previously developed by KOPEC. Therefore while other conventional DeNOx systems require temperatures between 300 and 400℃, the newly patented NOx catalyst can be used at both low and high temperatures for wider application.