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Boiler Burners

QLN® Low NOx Burners

John Zink’s QLN® burner delivers low NOx emissions for once-through steam generators (OTSGs) and heaters while maintaining high efficiency and reliability, with advanced fuel staging and internal flue gas recirculation (FGR).

Overview

Advanced Air/Fuel Premixing and Fuel Staging

Our QLN® burners are engineered for superior performance in once-through steam generators (OTSGs) and heaters. These burners use advanced air/fuel premixing and fuel staging techniques to significantly reduce NOx emissions. This burner's design offers a diffuse flame that creates an ideal heat flux environment for process heaters, while providing a single burner heat input range not offered by traditional process burners.

Designed for maximum efficiency and reliability, the QLN® burners can handle a firing capacity of up to 450 MMBTU/HR HHV. These burners are suitable for both gas and #2/light oil firing, providing flexibility and high performance across various fuel types. Their compact and innovative design ensures ease of installation and maintenance, making them ideal for both new installations and retrofit applications.

Features

  • Advanced Air/Fuel Premixing & Staging: Significantly reduces NOx emissions.
  • Wide Firing Capacity Range: Up to 450 MMBTU/HR HHV.
  • Multi-Fuel Compatibility: Suitable for natural gas, produced gas, syn gas, #2 fuel oil, and bitumen.
  • Compact Design: Facilitates easy installation and maintenance.
  • Robust Construction: Ensures long-term reliability and performance.

Benefits

  • High Efficiency: Optimized combustion process reduces fuel consumption and operational costs.
  • Versatile Application: Suitable for various fuel types and operational conditions, enhancing flexibility.
  • Easy Retrofit: Compact and innovative design ideal for retrofitting existing systems.
  • Reliable Operation: Proven performance in multiple installations ensures consistent and dependable operation.
Additional Offerings

Related To QLN® Low NOx Burners

ECOjet® Edge Ultra-Low NOx Burner

The ECOjet® Edge burner delivers ultra-low NOx emissions and high efficiency with advanced staged fuel injection, suitable for both oil and gas applications in package boilers.

Rapid Mix Burner (RMB™)

The Rapid Mix Burner (RMB™) by John Zink delivers ultra-low NOx emissions with advanced mixing technology, offering a cost-effective solution for thermal oxidizers and incinerators.

Upgrades, Retrofits & Revamps

At John Zink, we specialize in upgrades, retrofits, and revamps that can breathe new life into your existing combustion and emissions equipment, maximizing efficiency and reliability. Our team of experts can work closely with your site or facility to assess your current equipment and identify opportunities to enhance performance, improve safety, and meet evolving environmental standards without the need for full system replacements. 

Fired Equipment Services

We provide a full spectrum of fired equipment services, from startup and commissioning to troubleshooting across various equipment types, including flares, process burners, boiler burners, thermal oxidizers, and more. Our expertise in combustion tuning ensures optimal performance, enhanced safety, reduced emissions, and extended equipment life. With our experienced team on hand, issues are swiftly resolved to minimize downtime.

Replacement Parts

We are your trusted source for aftermarket parts, providing a comprehensive array of genuine components to keep your equipment operating at its best.

Partner With John Zink

With nearly a century of leadership in combustion and emission control, we are committed to being your trusted partner. Collaborate with John Zink for reliable solutions backed by expert service and support.