Technologies -> NOx Adsorber Catalysts

NOx adsorber catalysts / NOx traps

NOx can be removed from a lean gas stream by chemical adsorption onto a catalyst, hence the term NOx adsorber catalyst (NAC). The process of adsorption releases CO₂.

The NAC has a finite capacity for NOx but it can be regenerated by changing to a rich gas stream. Under these conditions, two reactions happen. First, the catalyst releases the NOx and is thereby regenerated. Then, the NOx is reduced to nitrogen.

Typical applications:

• Truck and Bus
• Cars, Vans and Light Trucks