CUBL Callidus® Ultra-Blue Low NOx Burners

Easy-to-Use Burner Technology to Dramatically Reduce NOx Emissions

Designed for each customer’s application, Honeywell UOP Callidus® Ultra-Blue (CUBLTM) burners provide proven operational performance with reduced environmental impact to the refining, petrochemical and gas processing industries.

CUBL process burners offer dramatic NOx reduction, increased duty, excellent flame stability and wide turndown range. They drive value through outstanding efficiency, simple operation, minimal maintenance needs and a reduced physical footprint.

Often ideal for retrofits into existing tight refinery furnaces, the CUBL-CF Compact Flame burner provides an economical solution that combines low emissions, shortened flame lengths, ease of installation and low maintenance requirements. The result is significantly reduced NOx emissions, increased fired duty of the furnace and improved throughput in the refinery.

Features:

  • Shortened flame lengths
  • Easy to install
Benefits:

  • Ultra-low NOx emissions
  • Lower maintenance
  • Increased fired duty
  • Improved throughput

Applications:

  • Retrofits into existing tight refinery furnaces

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For ultra-low NOx emissions in more challenging applications, the CUBL-X burner offers outstanding performance with 40% more heat capacity compared to other burners. The CUBL-X burner uses a series of primary combustion air inductors designed to help maximize the amount of air that is introduced into the primary combustion zone of the burner to improve efficiency.

Features:

  • Shorter, stiffer flames 1.25 ft/ MMBtu/hr (1.3 m/MW)
  • Smaller burner circles or more burner to burner spacing
Benefits:

  • Ultra-low NOx emissions
  • 40% more heat capacity
  • More duty from a smaller burner
  • Outstanding performance

Applications:

  • Furnaces with low-draft operations, short radiant box heights, and tight burner-to-burner spacing or internal currents

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For high capacity and forced draft applications, the CUBL-HC burner delivers ultra-low NOx emissions, stable performance and shorter flames than traditional ultra-low NOx burners. The compact design retrofits into the most challenging furnaces.

Features:

  • Flame lengths as short as 0.5 ft/MMBtu (0.52 m/MW)
  • Compact, modular design
Benefits:

  • Ultra-low NOx emissions
  • Extremely stable with 10:1 turndowns
  • Retrofits into the most challenging furnaces

Applications:

  • High capacity applications
  • High airside pressure drop applications
  • Modular design is adjustable for retrofit projects using existing cut-outs and air delivery systems

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For hydrogen, ammonia and methanol service, the CUBL-DF delivers incredibly low NOx levels with low maintenance needs and outstanding combustion by incorporating separate manifolds to fire PSA or off-gases.  Thousands of down-fired CUBL-DF burners are providing efficient NOx emission reductions throughout the world.

Features:

  • Separate manifolds to fire PSA or off-gases
  • Fuel source flexibility
  • Improved exit velocity
  • Minimized flame leaning
Benefits:

  • Ultra-low NOx emissions
  • Low maintenance
  • Outstanding combustion

Applications:

  • Hydrogen, ammonia and methanol service

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Designed specifically for cracking and coking furnace applications, the CUBL-F flat flame process burner provides superior mechanical safety, high flame quality and ultra-low NOx emissions without any special operating needs.

Features:

  • Utilizes Internal Flue Gas Recirculation (IFGR) technology
  • Suitable for firing up a wall, across the floor or free standing
  • Reduced tile size for thinner flames
  • Carefully engineered and tested tip drillings
  • Burner tiles use no metallic parts
Benefits:

  • Ultra-low NOx emissions
  • Optimized heat flux profiles
  • No special operating needs
  • Superior mechanical safety and integrity
  • High flame quality

Applications:

  • Cracking and coking furnaces

Specifications:

  • Predicted NOx emissions as low as 35 PPMV
  • High Turndown of 15:1 of greater for most cases

Contact us for more information about CUBL burners.

Created to help meet and exceed the industry’s needs and developmental mandates, the CUBL burner family consists of stable and easy-to-use burners that significantly reduce NOx emissions and maintenance costs. Operating with a wide range of fuels, CUBL burners deliver value in virtually any application.

Features:

  • Shorter flame lengths
  • Natural or forced draft
  • Flat or round flame
  • Fires vertical or horizontally
  • Smallest round flame tile diameter

Applications:

  • Fits virtually any application
  • New or retrofit
Benefits:

  • Improved NOx reduction
  • No special operating needs
  • Reduced maintenance
  • Extremely stable with 10:1 turndowns
  • Retrofits without floor modifications

Specifications:

  • Category Name: 2 MM Btu/hr to 45 MM Btu/hr with higher levels possible
  • Typical flame length: 1.5 ft/MMBtu/hr (1.56 m/MW)
  • Typical NOx reduction: 10-20 ppmv without any additional technologies

Contact us for more information about CUBL burners.