When it starts
Licensing pressure and modernization needs
Low NOx projects usually begin when the plant must update emissions, technology or safety governance.
Emissions Reduction
Ultra low NOx burners for plants that need lower emissions without losing operating stability.
Low NOx projects become more valuable when emission reduction comes together with a stronger control strategy and a realistic retrofit path.
UNNOX — FRELSER
Emissions Reduction
Choose a solution for your installation
How it wins
Emission reduction plus better control
The commercial case is stronger when lower NOx is combined with visibility, repeatability and lower operational risk.
Where it goes
Product pages and retrofit paths
Evaluate UNNOX MB-G and DB-G burners and ETC control integration for your NOx reduction project.
UNNOX: Low NOx through internal recirculation
- Internal recirculation and Hollow Flame
- The combustion-head design aerodynamically induces internal recirculation of combustion gases. This recirculation helps reduce peak flame temperatures and thermal NOx formation.
- Application-specific FGR
- External recirculation returns part of the flue gas to the system. Its use depends on the burner version, furnace and emission target.
- Performance conditions
- Furnace geometry and temperature, fuel composition, load and air temperature affect emissions. The limit and oxygen reference must be defined in the project specification.