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- Ultra Low NOx Performance
- Extremely Stable Combustion
- Ideal for Single or Multi-Burner Applications
- Safe Operation with Simple Controls
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- High Burner Turndown
- Low NOx Capability with Oil Firing
- Refinery Gas Compatible
- Simple Rugged Design with No Moving Parts
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The New Ultra Low NOx Solution
Innovative Ultra Low NOx Technology
Coen's well-known Delta-NOx burner, the industry's
Low NOx burner of choice, exceeded 150 installations worldwide in just
over four years. The Delta-NOx, designed for 50-80 ppm without FGR, can
easily meet 25-30 ppm NOx with minimum FGR. And now, with the new Ultra
Low NOx (ULN) Technology, the Delta-NOx can achieve NOx requirements
as low as 9 ppm for natural gas and 15 ppm for refinery gas.
Unlike other ultra low NOx techniques, the new Delta-NOx ULN's simple,
yet innovative technology provides a low cost solution to meet any NOx
requirement. By varying the air fuel ratio at strategic locations in the
burner, the Delta-NOx ULN provides exceptional stability, even with large
amounts of FGR. Maximum thermal and prompt NOx reductions are possible
for the first time with a diffusion flame burner. Standard burner management
and controls further simplify the design to help lower costs.
Initial Testing
The Delta-NOx ULN performed exceptionally well in the preliminary testing
conducted at the Coen Research and Development Facility. In testing, the
Delta-NOx ULN produced virtually no CO emissions at all burner loads.
Delta-NOx ULN Meets Project Goals
Coen successfully applied the ULN Technology to an existing
Delta-NOx installation at a Calpine facility in Pryor, Oklahoma. Calpine
retrofitted their existing Delta-NOx 42 burner with the ULN Technology
on a refractory lined 170,000 lb/hr A-Type packaged boiler firing natural
gas with flue gas recirculation. The boiler started up in a short time
with NOx emissions below 7.5 ppm.
"The burner certainly is exciting to work with,
especially when we noted the burner's excellent flame stability when rapidly
changing loads. This is something I haven't seen before in other low NOx
burners" commented William Stan Kee, Technical Advisor, Calpine
Power Plant Technology.
Meeting the Competition Head On
With Ultra Low NOx performance, lower energy consumption, higher turndown,
and a simpler design than conventional burners, Coen's new Delta-NOx ULN
burner is ready to challenge all competitors in setting the new standard
for low emissions..
For more information about this product, talk to your nearest Coen Sales Representative.
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