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Air Pollution Control

Boiler Performance Optimization

Water Treatment

Air Pollution Control

Burners & Fuel Conversions

Selective Catalytic Reduction (SCR)

Selective Catalytic Reduction SCR Systems

SCR Systems

STEP Combustion also designs, engineers, and provides Selective Catalytic Reduction (SCR) systems which provide the highest level of NOx reduction.  As its name implies, the SCR uses a catalyst and injected reagent such as ammonia or urea to convert NOx to elemental nitrogen (N2. The reagent is injected upstream of catalyst housing and mixes with the flue gas. The SCR system NOx reduction can be engineered based on the catalyst dimensions, catalyst materials, cell density, reagent injection, temperatures, etc.

STEP provides SCR tuning and management services as well as complete systems including handling skids, injection equipment, catalyst, reactor housings, and ancillary equipment.  We offer catalyst materials in several types, including homogenous honeycomb or corrugated catalyst, as well as plate-type catalyst.  STEP selects catalyst material from one of several catalyst manufacturers based on the application requirements.  This allows us to match catalyst to operating conditions, and flue gas constituents, while integrating our injection and control systems.

STEP Combustion has several experienced field engineers providing technical support in the start-up and operation of the STEP SCR systems.

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Selective Catalytic Reduction SCR Systems

EES SCR Catalyst

For maximum NOx reduction we provide Selective Catalytic Reduction (SCR) systems for a wide array of fired-equipment

Combustion Controls

Engineered Solutions for Combustion-based NOx Emission Control

Economical step wise approach to NOx emission reduction and improved combustion efficiency from utility & industrial boilers