Catalytic gas cleaning

Selective Catalytic Reduction (SCR) diminishes post-combustion NOx by reacting with urea or ammonia to produce nitrogen and water.

Selective Catalytic Reduction (SCR) is a way of converting Nitrogen Oxides (NOx) with the aid of a catalyst into nitrogen (N2) and water (H2O) at a lower temperature level. 

The reductant, typically aqueous ammonia or urea solution is added, injected to the exhaust gas stream for the selective catalytic reduction.
Catalytic oxidation activity (CO/VOC) is achieved by additional impregnation with noble metals.

GEA was the first company to use and continuously improve selective catalytic reduction (SCR) in the glass industry, in the cement industry and now also in metallurgical industry.

With the operating data, the performance measurements carried out and the activity studies of the catalysts used, GEA is constantly adding to its experience for process optimization and for the benefit of users in all industrial sectors.

GEA offers two selective Catalytic Reduction Solutions to control NOx:

  • SCR reactor for removal of NOx & CO/VOC
  • Catalytic ceramic candle filter (BisCat) 

GEA Insights

Bringing centrifuges up to speed with sustainability

Every drop and every kilowatt hour count when it comes to centrifuge development.

GEA has been building centrifuges for over 130 years – something you wouldn’t think is in question every day. Jürgen Mackel, Vice President...

Hand over solar panel

GEA’s solar journey: powering a sustainable future

Through investments in renewable energy, GEA is lowering its CO2 emissions around the world.

Decarbonizing processes with industrial heat pumps

When it comes to improving the health of the planet, GEA takes a leading role. As one of our sustainability-focused strategic objectives, we are forging a path to help our customers across myriad industries to reduce energy use...

Receive news from GEA

Stay in touch with GEA innovations and stories by signing up for news from GEA.

Contact us

We are here to help! With just a few details we will be able to respond to your inquiry.