Low NOx Burner Retrofit Challenge

2016 AIChE Spring Meeting – April 11-14, 2016 – Houston, TX

Project Background

• Existing burners: conventional raw gas burner
• Average yearly NOx level: 244 ppmv [500 mg/Nm3]
• Heater roof tubes are 16.4 ft above furnace floor
  • Existing burners were impinging on roof tubes causing hot spots and tube coking
• Poor combustion air distribution to burners

GLSF Round Flame Minimum Emissions Burner

Chosen for its ability to achieve ultra-low NOx emissions while maintaining compact flame shapes and high flame stability on all fuels

Conclusions

• Multi-Burner combustion testing was performed in Zeeco’s Testing Facility to accurately simulate on site conditions
• Burners were delivered to site and installed with Zeeco’s supervision
• On site burner performance testing was conducted and proved that the burners were meeting all required performance goals
• Further heater operation improvements can be performed to improve the burner performance even further

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