NOx Abatement

As a supplier of catalyst and process technology, Applied Catalysts can help customers source catalysts and chemicals in many areas.

Replacement NSCR Catalysts

Many Industrial Air Pollution Control applications involve the removal of NOx compounds as part of the end users air permit.  Depending on the constituents in the exhaust stream, two types of catalyst can be used, SCR or NSCR.

Selective Catalytic Oxidation (SCR) uses ammonia or urea as a reductant in conjunction with a specialized SCR catalyst, typically V/Ti/W based.  Some zeolite catalysts are also used for certain applications where it is a good fit.

Non-Selective Catalytic Reduction (NSCR) typically uses a precious metal based catalyst, in conjunction with Carbon Monoxide (CO), Hydrogen (H2) or Methane (CH4) as the reductant.  NSCR reactions require that the oxygen content in the exhaust gas be very low, on the order of < 1% O2.  An example of NSCR is with engine emission control, such as automobile catalysts.  Tuning the engine to have a stoichiometric balance of CO, Hydrocarbon, and NOx compounds, allows a “3-way” catalyst, typically a mixture of Pt/Pd/Rh, to simultaneously remove all three target compounds, NOx, CO and the HC.

Another example where NSCR is very effective is in Nitric Acid tail gas applications.  Here, in some high pressure, high temperature applications, the O2 content and NOx ppm levels are just right for a precious metal based NSCR catalyst.

Contact Applied Catalysts about your NOx control application.

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Product Types for Emission Control

Activated Carbon Monolith

In chemical process applications, ACMC® catalysts can be used for continuous hydrogenation reactions in many areas where traditional GACC (granular activated carbon catalysts) are currently used.

Monolithic Catalysts

Our monolithic solutions include activated carbon, ceramic, and metallic catalysts that have great applications for engine emissions control and industrial air pollution.

Particulate Systems

Our particulate systems include extrudates, precious metal spheres and saddles for regenerative air pollution control.  Enjoy benefits like 95% heat recovery.


We offer unique designs, such as our ceramic honeycomb, that provides excellent benefits including high resistance to thermal shock and solid thermal mass for effective heat exchange.

Market Applications for Emission Control


Have another market application needing a catalytic system? Tell us about it, and let’s create something that gets the job done.


Partner with the best for Emissions Control Catalysts & Services

Applied Catalysts works with many suppliers across the globe. We can provide the following:

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    in-house validation capabilities

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    in-house and external catalyst supplier

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    connections with many manufacturers

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