abstract |
The present invention provides an SCR catalyst for removing nitrogen oxides (NO x ) in exhaust gas, comprising: 0.01 to 70% by weight of zeolite having an average pore size of 5Å or more; Titanium dioxide (TiO 2 ) 25 to 90% by weight; And vanadium pentoxide (V 2 O 5 ) It relates to an SCR catalyst comprising 4 to 10% by weight. The SCR catalyst according to the present invention has superior denitrification performance in a low-temperature region, improves durability against sulfur compounds, and has excellent regeneration rates compared to conventional SCR catalysts. |