Catalysts
SCR DeNOx catalysts as coated or solid extrudate
Selective catalytic reduction systems (SCR or DeNOx) function by the chemical reduction of NOx (NO and NO2) to nitrogen (N2) using ammonia. We offer coated
Vanadium, especially in the form of vanadium pentoxide (V₂O₅), is an important material for numerous industrial processes. One of the most significant applications of vanadium catalysts is in selective catalytic reduction (SCR) technology, which reduces nitrogen oxides (NOₓ) in exhaust gases. Vanadium is also crucial in sulfuric acid production. This wide range of applications is due to the unique chemical properties of V₂O₅, particularly its ability to act as an oxidizing agent and an amphoteric compound.
Vanadium in SCR catalysts
Vanadium catalysts are often used in SCR systems to reduce NOₓ emissions. This technology is used in both industrial applications and vehicle exhaust aftertreatment. Vanadium pentoxide (V₂O₅), in combination with tungsten oxide (WO₃) and titanium dioxide (TiO₂), acts as an active catalyst material. This mixture enables the conversion of nitrogen oxides into harmless nitrogen (N₂) and water through reactions with ammonia or urea.
Through its role as an oxidizing agent, V₂O₅ facilitates the reduction of NOₓ over a wide temperature range. At the same time, titanium dioxide ensures thermal stability, while tungsten oxide prevents undesirable byproducts such as sulfuric acid and improves catalyst performance at higher temperatures.
Vanadium in sulfuric acid production
Besides its role in exhaust gas purification, vanadium pentoxide also plays a central role in sulfuric acid production. Here, it is used as a catalyst in the contact process to convert sulfur dioxide (SO₂) into sulfur trioxide (SO₃). This process is of great importance for the production of sulfuric acid, which is used in fertilizer production, chemical processes, and petroleum refining.
Vanadium pentoxide is characterized by high catalytic activity, which enables efficient conversion of SO₂ to SO₃ and accelerates the production of sulfuric acid.
Advantages of vanadium catalysts
High catalytic activity: V₂O₅ ensures effective reduction of nitrogen oxides and plays an important role in sulfuric acid production.
Thermal stability: In combination with TiO₂, the catalyst remains stable even at high temperatures.
Versatility: Vanadium catalysts are used in both environmental protection and important industrial processes.
Selective catalytic reduction systems (SCR or DeNOx) function by the chemical reduction of NOx (NO and NO2) to nitrogen (N2) using ammonia. We offer coated
