Burner Revamp to Increase Primary Reformer Efficiency & Lower Emissions

Nitrogen & Syngas 2019 – Berlin, Germany – March 5-6, 2019

Application Overview:

• Downfired primary reformer furnace
• European ammonia production facility
• 105 downfired burners > 40 years old
• NO_x emissions in range of 250-300 mg/Nm³

Burner Performance

• Burners are achieving 90 mg/Nm³ NO_x
• 3.0% O₂ measured in the flue gas; therefore, further reductions will improve NO_x
• No flame-to-flame interaction
• Improved heat flux profile

Conclusion

• Zeeco supplied 105 GB Single Jet inserts for a downfired reformer at a European ammonia facility
• NO_x emissions, heat flux profile, and flame-to-flame interaction were confirmed by CFD and burner testing
• Current NO_x emissions average 90 mg/Nm³ at 3% 0₂ which meets European legislation and NO_x guarantees
• Burners are operating with lower excess air; therefore, fuel gas consumption rate is lowered in the radiant section
• NO_x emissions can be reduced further if the furnace excess air is trimmed

Download Presentation