WAHLCO Fully Integrated microSCR Systems

  • Catalyst Modules
  • Ammonia Delivery System
  • Modeling & System Optimization
  • Testing & System Performance Guaranty

In response to EPA regulations affecting small scale industrial boilers, process heaters, generators, and burner equipment, WAHLCO is offering fully packaged NOx and CO reduction equipment for these applications. WAHLCO can provide components or turnkey installations with our standard designed SCR systems to meet latest emission requirements.

View microSCR Brochure >
Ammonia Vaporizer Skid
Ammonia Vaporizer Skid

Our expertise and focus is in microSCRs for industrial applications including:

  • IC Engines and Small Turbines
  • Package Boilers
  • Process Heaters
  • Furnaces
  • Small Generator Packages
  • Steam Cogeneration

WAHLCO microSCR designs allow for:

  • High Quality Standards
  • Low-Cost Base Models
  • High Reliability
  • Simple design
  • Easy Installation
  • Low Utility Costs
  • Flexibility and Options for Custom Design

WAHLCO provides the following benefits:

  • Fully integrated Ammonia and SCR system
  • Sole Sourced Equipment
  • Capabilities in all Ammonia Types: Anhydrous, Aqueous, and U2A® (Urea to Ammonia Conversion)
  • Custom Engineering to Suit Each Application and Location
  • Vertical and Horizontal Arrangements
  • CFD & Scaled Model Offered as part of the SCR package
  • Servicing: EPC Companies, Direct Utility, Refineries, other Industrial & Commercial Companies
  • Meets AQMD PROPOSED RULE 1109.1
SCR Catalyst
SCR Catalyst
NOx Source
  • Combustion Turbine
  • IC Engine
  • Boiler
  • Furnace
  • Process Heater
  • Cogen
Ammonia Injection
  • Twin Fluid Direct Injection
  • Single Fluid Direct Injection
  • Dilution Air Carrier AIG
  • Anhydrous Ammonia
  • Aqueous Ammonia
  • U2A® (Urea to Ammonia)
  • Reactor Housing
  • Catalyst
  • Mixing
  • Flow Distribution
microSCR System

microSCR System Options

  • System Design and Modeling
  • Catalyst and Reactor Housing
  • Truck Unloading Station
  • Ammonia Storage Unit
  • Ammonia Forwarding Pumps
  • Ammonia Flow Controls
  • Steam or Electric Ammonia Vaporization
  • Dilution Air Blowers
  • Ammonia Injection Grids
  • Direct Reagent Injection Systems (no vaporization)
  • Ammonia Direct Injection Lances
  • Field Service and Aftermarket Support

Ideal candidates for the WAHLCO microSCR Systems:

  • Reduction efficiencies required above 75% and up to 90+%
  • Size range of 250,000 lb/hr or below of flue gas capacity
  • Diesel, Natural Gas, Liquefied Petroleum Gas, Landfill Gas, Coal, or Biomass
  • Standard range of approximately 450-750°F exhaust gas temperature
  • High temperature range option up to 950°F
Ideal candidates for the WAHLCO microSCR Systems


Small Industrial Boilers

  • Airports
  • Cogen facilities
  • Correctional facilities
  • Food processing
  • Hospitals
  • Hotels / resorts
  • Independent power producers
  • Laundry / dry cleaning facilities
  • Oil and gas
  • Pulp and paper
  • Universities