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Show Off-Stoichiometry Partial-Premix Process Burner Applications Environmental and Combustion Experts 12 DEC 2017 2017 AFRC Industrial Combustion Symposium Houston, TX, USA UOP 7200-0 © 2017 UOP LLC. A Honeywell Company All rights reserved. Customer Have Told Us Want is Wanted From Burners • Operates Like a Conventional Burner - Low NOx Emissions - One Air Control Handle - One Fuel Control Point - Conventional Draft / O2 Control / Response - No Startup Lances, Special Procedures - Not Reliant on Pilot For Stability - 10:1 Turndown - Accepts Widely Varying Fuel - As Stable as a Conventional Burner (90% Stoichiometry) - Compact Flame - Not Susceptible to Plugging/Fouling Customers Want a Plug and Play Burner The CUBL Series of Ultra Low NOx Burners Adapted for General and Specific Applications Filling In the Customer Requirements Matrix CUBL CUBL-DF CUB-LX & HC CUBL-F CUBL-CF Low NOx Emissions One Air Control Handle One Fuel Control Point Conventional Draft / O2 Control No Startup Lances Not Reliant on Pilot For Stability 10:1 Turndown w/ or w/o Air Adjustment Accepts Widely Varying Fuel * * As Stable as a Conventional Burner * * Compact Flame Not Susceptible to Plugging/Fouling The CUBL Series Has Covered Most of the Bases Callidus CUBL-CF Compact Flame Ultra Low-NOx Burner - Commercial Application of Off-Stoichiometry Partial-Premix for Process Burner Applications by Utilizing Staged, Rich Partial Premix, Internal Flue Gas Recirculation • Born from Trusted and Proven Technology: Basic elements are the same as the Conventional Callidus CUBL burner. • Uses the Same Tile, Same Tip Arrangement, Same Cavity Stabilization • Developed by Extensive Physical Testing and CFD Simulation Patent Pending Staged, Rich Partial Premix Internal Flue Gas Recirculation Callidus CUBL-CF Compact Flame Ultra Low-NOx Burner - Commercial Application of Off-Stoichiometry Partial-Premix for Process Burner Applications by Utilizing Staged, Rich Partial Premix, Internal Flue Gas Recirculation Conventional CUBL Burner CUBL-CF Burner Patent Pending Staged, Rich Partial Premix Internal Flue Gas Recirculation The CUBL-CF Checks The Remaining Boxes • Accepts Widely Varying Fuels - One Port Drilling for All Fuels No Special Natural Gas Drilling, No NOx Hit No Flashback on Hydrogen to over 90% Flame Cavity Stabilized Away from Staged or Primary Tips • Stable as a Conventional Burner - No Special Natural Gas Drilling - Stable Sub-Stoichiometric Operation, No Flashback • Not Susceptible to Plugging or Fouling - One Large Fuel Gas Port ~ 1/8" Gas Port in Cool Location Away from Heat Affected Zone Primary and Staged Premix Ports > ¾" Diameter, Not in Flame Easy to Clean - Steam It Out Patent Pending Staged, Rich Partial Premix Internal Flue Gas Recirculation Shorter, More Compact Flame Traditional CUBL Early Generation Conventional Ultra Low Premix NOx Burner CUBL CUBLCompact Flame Flame Length 1 2 1.5 1.2 Burner Cutout 1 2 1.25 1 • Same Entrainment Length of Conventional CUBL for Primary and Secondary • Roughly Same Momentum, So Similar Flue Gas Mass Entrained and Recirculated Internally • 100% of fuel and less than 50% of Air is Premixed • Air Entrainment Increases Burner Air Capacity • Allows Use of Smaller Burner Tile for Same Fired Capacity Conventional CUBL Burner Patent Pending Staged, Rich Partial Premix Internal Flue Gas Recirculation Compact Flame CUBL-CF Burner CUBL-CF Flame Stability • Extremely Stable Combustion: Burner remains stable at 40%+ inert gas mixtures. • Runs < 90% Stoichiometry Fuel A 25 Fuel Comp: Fuel B 25 Fuel Comp: NG-70% H2-30% NG-100% 22 22 19 NOx (PPM) NOx (PPM) 19 N2 CO2 16 10.00% 20.00% Inert (%) 30.00% 10 0.00% 40.00% Fuel C 25 22 Fuel Comp: 25 NG-30% H2-70% 22 20.00% Inert (%) 30.00% 40.00% Fuel D Fuel Comp: 19 N2 CO2 16 13 NOx (PPM) NOx (PPM) 10.00% NG-50% 19 10 0.00% CO2 16 13 13 10 0.00% N2 N2 CO2 16 13 10.00% Inert (%) 20.00% 30.00% 10 0.00% 15.00% Inert (%) 30.00% Efficient, Stable, Low-Emission Combustion 45.00% Low NOx Emissions: NOx emissions essentially the same as the CUBL • BWT = 1450F • O2 = 3% 20 18 • Clear Technical Pathway to Sub-10 ppm 16 • Goal Sub-10 ppm that meets: 14 • Operates Like a Conventional Burner 12 Natural Gas • Low NOx Emissions • One Air Control Handle 10 Low H2 • One Fuel Control Point 8 High H2 • Conventional Draft / O2 Control / Response RFG • No Startup Lances, Special Procedures 6 • Not Reliant on Pilot For Stability 4 • 10:1 Turndown 2 • Accepts Widely Varying Fuel • As Stable as a Conventional Burner 0 CUBL-CF Flame Burner Conventional CUBL Burner • Compact Flame • Not Susceptible to Plugging/Fouling Shorter Flame with Comparable NOx Values Added Benefit - Everything Runs Cooler • Increased Equipment Lifespan Reduced Service: • Gas Tip Less Prone to Plugging • Burner Head Uses Same CUBL Bullet Tip Design • Not In Heat Affected Zone • Risers Are Heat Exchangers Transfer Heat To Fuel/Air • Easy to Pull The One Gas Tip • Cool Burner Head Manifold Can Be Steamed Out • Tile Life Extended Conventional CUBL Burner Compact Flame Low-NOx Burner Lower Temperatures Where it Matters Commercial Application of Off-Stoichiometry Partial-Premix for Process Burner Applications by Utilizing Staged, Rich Premix, IFRG • Operates Like a Conventional Burner • Low NOx Emissions • One Air Control Handle • One Fuel Control Point • Conventional Draft / O2 Control / Response • No Startup Lances, Special Procedures • Not Reliant on Pilot For Stability • 10:1 Turndown • Accepts Widely Varying Fuel • As Stable as a Conventional Burner • Compact Flame • Not Susceptible to Plugging/Fouling Q & A Time! |
