PATENTED IN-LINE DIFFUSER
Reduce NOx | Lower LOI | Reduce Slagging | Improve Combustion | Increase Burner Tip Life
Patented In-Line Diffuser: Optimized Fuel Flow for Improved Combustion Efficiency
The SAS Global Patented In-Line Diffuser is engineered to eliminate coal ribboning, ensuring a homogeneous air-fuel mixture for more stable combustion. By improving fuel distribution, the In-Line Diffuser helps reduce NOx emissions, lower LOI, minimize slagging, and extend burner tip life—enhancing overall boiler performance.
Key Benefits:
- Reduces NOx emissions by promoting complete and efficient combustion.
- Lowers LOI (Loss on Ignition) by ensuring a more uniform fuel distribution.
- Minimizes slagging by preventing uneven fuel flow and localized high-temperature zones.
- Extends burner tip life by reducing flame impingement and ensuring balanced combustion.
- Works with all burner types, enhancing fuel flow consistency across all designs.
How It Works
- Installed just after the last elbow or connection leading to the burner pipe.
- Eliminates coal ribboning, ensuring an even mixture of fuel and air reaches the boiler.
- Creates a uniform fuel flow pattern, allowing burners to operate more efficiently.
Every type of coal-fired burner benefits from the SAS Global In-Line Diffuser, as it optimizes combustion, reduces emissions, and extends component life.
WALL FIRED BURNER DIAGRAM: WITHOUT IN-LINE DIFFUSER
FLAME WITHOUT IN-LINE DIFFUSER
- Delayed combustion
- Poor mixing of primary air & coal
- Partial ignition
- Higher levels of LOI
- Higher levels of NOx
- Excessive nozzle wear
- Boiler slagging
WALL FIRED BURNER DIAGRAM: WITH IN-LINE DIFFUSER
FLAME WITH IN-LINE DIFFUSER
- Properly mixed fuel & air
- Proper & complete combustion
- Lower NOx
- Lower LOI
- Reduced nozzle wear
- Reduced boiler slagging
CASE HISTORY: DRAMATIC REDUCTION IN NOx LEVELS
A dramatic reduction in NOx emissions was recently achieved using the SAS Global Power Patented In-Line Diffuser, demonstrating its proven ability to optimize fuel-air mixing and enhance combustion efficiency.
Real-World Performance: 50% NOx Reduction
- SAS In-Line Diffusers were installed on one mill—accounting for one-third of a B&W Wall-Fired Boiler operating at full load.
- When the mill was brought back online, NOx levels dropped nearly 50%, from a baseline of 0.62 to 0.32.
- Due to operational adjustments, airflow was fine-tuned to stabilize NOx at 0.44, while also improving CO and O₂ levels.
Beyond NOx Reduction: Enhanced Flame Stability & Combustion Quality
- Utility engineers were amazed by the significant NOx reduction and the dramatically improved flame appearance.
- The success of the initial installation has led to the full-scale implementation of SAS Patented In-Line Diffusers across all remaining burners.
Proven Results, Immediate Impact
The SAS In-Line Diffuser provides measurable emissions reduction, improved fuel-air balance, and enhanced combustion stability, making it a cost-effective solution for cleaner, more efficient power generation.
