Renewable

Environmental

Thermal

Company

Thermal

Low NOx Burners and Combustion Systems

Effective NOx reduction components and strategies

Combustion & Fuel Systems

Since 1971, B&W has sold low NOx combustion systems for more than 120,000 MW of generating capacity in both new and retrofit boiler applications. Our low NOx burner technology has been successfully applied to a broad range of B&W and non-B&W units with varying fuel characteristics and boiler arrangements. We also pioneered the development and application of NOx ports and air staging for reducing NOx emissions. Combined with our other technologies, such as burners and selective catalytic reduction systems, overfire air systems are part of an overall NOx reduction strategy. B&W also offers new and replacement FPS gas, oil and dual fuel igniters, igniter auxiliary equipment, optical and fiber optic flame scanners and control systems for wall-fired and corner-fired boiler applications.

Our combustion solutions include:

Combustion Systems

AireJet Low NOx Burners

AireJet® Low NOx Burner

B&W engineers designed the AireJet burner with an innovative burner structure — a burner built around a center jet of air, encircled by the fuel stream, and then wrapped in additional combustion air

  • Pulverized coal-fired boiler applications
  • Much cleaner burning so it requires less excess air to minimize carbon monoxide (CO) and unburned carbon
  • Higher boiler efficiency and improved plant heat rate
  • Excellent flame stability and turndown

Download Brochure (PDF)

AireJet Burner Mechanical Design Features

Use this quick guide to learn more about the vital parts of the AireJet Burner.

 

AireJet Low NOx Burner Diagram

DRB 4Z Burner

DRB-4Z™ Low NOx Burner

The advanced DRB-4Z is designed to produce lower emissions by featuring a patented transition zone. This zone acts as a buffer between the fuel rich flame core and secondary combustion air streams.     

  • Pulverized coal-fired boiler applications
  • Superior mechanical reliability and operation
  • Rugged construction, integrated design
  • Complete shop assembly – ready for installation
  • New or retrofit applications

Download Brochure (PDF)

 

DRB-4Z Burner Mechanical Design Features

Use this quick guide to learn more about the vital parts of the DRB-4Z Burner.

DRB 4Z Burner Diagram

XCL S Burner

Low NOx XCL-S® Burner

This advanced low NOX burner was developed to achieve superior NOX performance in burner-only applications and in applications using overfire air (OFA) and/or flue gas recirculation (FGR).

  • Oil and gas boiler applications
  • Demonstrated NOx reductions in excess of 90 percent
  • Demonstrated low NOx emissions with and without the use of FGR
  • Superior flame stability and burner turndown
  • Lower CO emissions
  • Improved excess air control
  • On-line adjustability to optimize performance
  • Low-cost plug-in design
  • Proven mechanical reliability and operation
  • Complete shop assembly – ready for installation

Download Brochure (PDF)

 

XCL-S Burner Mechanical Design Features

Use this quick guide to learn more about the vital parts of the XCL-S Burner.

XCL S Burner Diagram

DRB XCL Parish Front Burner

DRB-XCL® Low NOx Burner

The DRB-XCL has proven to be the workhorse burner in achieving low NOx emissions requirements. This burner remains an integral part of achieving optimized NOx reduction solutions.   

  • Pulverized coal-fired boiler applications
  • Superior mechanical reliability and operation
  • Rugged construction, integrated design
  • Complete shop assembly — ready for installation
  • New or retrofit applications
  • Plug-in design

Download Brochure (PDF)

 

DRB-XCL Burner Mechanical Design Features

Use this quick guide to learn more about the vital parts of the DRB-XCL.

DRB XCL Diagram