Catalyst Systems

Total Emission Control Systems to Reduce NOx and CO

Honeywell UOP Callidus® solutions include total emission control systems for new or retrofit applications, anywhere in the world. From Selective Catalytic Reduction (SCR) systems to Computational Fluid Dynamic (CFD) modeling and our patented ammonia injection and mixing technology, our state-of-the-art technology and designs offer industry leading efficiencies and help minimize your capital and operating expenses.

Callidus Ammonia Vaporization Systems use electric, fired or process heat to change ammonia from liquid to gas to be delivered to the SCR reactors. Our experts can help select the correct components for your ammonia vaporization system to help minimize your operating cost. For many applications, an additional heat source is not required.
  • Features:
    • Electric, fired or process heat
    • Additional heat source often not required
    • Process Burners
  • Benefits:
    • Reduced operating costs

For more information about Callidus Flares, contact us

Flare Systems
The field-proven and patented Callidus ammonia injection grid (AIG) is the heart of the SCR system. This technology provides improved mixing and distribution of ammonia in SCR applications. Callidus High Performance Mixing technology can improve NOx reduction, reduce ammonia slip and extend catalyst life.We can design systems using a variety of reagents: aqueous, anhydrous ammonia or urea. Reagent injection is tailored to meet the specific application.

  • Features:
    • Field-proven, patented design
    • Customized to the application
    • Reagents can include aqueous, anhydrous ammonia or urea
  • Benefits:
    • Improved ammonia mixing and distribution
    • Improved NOx reduction
    • Reduced ammonia slip
    • Extended catalyst life

For more information about Callidus Flares, contact us

Flare Systems
Industry-leading Callidus SCR systems provide a cost-effective, customized solution to reduce NOx and CO emissions. From process gas conditioning to ammonia vaporization and catalyst selection, our experts understand all aspects of SCR processes to help you make the best decisions for your facility. Our experience in mechanical, electrical, chemical, process, structural and project engineering, as well as CFD modeling, helps us deliver a custom solution to meet your requirements and exceed your expectations.

Our total package solution includes process gas conditioning, emission reduction, and post process gas heat recovery. We also provide system installation startup and support for an end-to-end solution. Callidus systems can be installed in new or retrofit applications, anywhere in the world.

  • Features:
    • Process gas conditioning
    • Emission reduction
    • Post process gas heat recovery
    • CFD modeling
  • Benefits:
    • Reduced NOx and CO
    • Cost effective
    • Customized to your facility
    • Turnkey solution
  • SCR Applications:
    • Process Heaters
    • Chemical Applications
    • Retrofit Catalyst Systems
    • Thermal Oxidizers

For more information about Callidus Flares, contact us