1. Combustion Systems for Reheating Furnaces
  2. Combustion Systems for Reheating Furnaces
  3. Combustion Systems for Reheating Furnaces

Combustion Systems for Reheating Furnaces

Burners are the key components of reheating furnaces. Tenova Italimpianti, leader in technologies for industrial furnaces, has developed in-house expertise in the production of state-of-the-art burners since 1960s, combining the company’s engineering know-how and advanced knowledge of the combustion field.

Over the decades, Tenova Italimpianti has heavily invested in Research & Development & Innovation to improve its combustion process with several objectives, focusing in recent years on the minimization of NOx emissions, the reduction of fuel consumption, the digitalization and the extension to hydrogen combustion. On top of this, our distinctive approach to R&D leverages our long experience in CFD (computational fluid dynamic) and experimental testing in laboratory facilities.

This makes our burners the best-in-class combustion technology for reheating furnaces, a fact confirmed by our proven track record of installations all over the globe.

For reheating furnaces, Tenova Italimpianti is able to realize and customize all types of burners, both lateral and roof burners.  Furnaces can be equipped with TS – lateral burners – in standard NOx-emission version or in low NOx and flameless one – TSX. The same concept is applicable to radiant burners, with TR and TRX. In order to minimize gas consumption, Tenova has optimized both honeycomb and ceramic ball regenerative burners (TRG), which can be equipped with all recent technologies for NOx emissions reduction as flameless (TRGX) and the 1-dgt technique (patented).

All burners for reheating furnaces can work with different types of fuel – natural gas, LPG, coke oven gas, blast furnace gas, as well as mixtures – in order to optimize the consumption of gases from integrated steel production plants.

Over the past few years, Tenova has developed a new concept of combustion system, the Smart Burner Monitoring System (SBMS), where the technological heart of reheating furnaces is able to communicate with the plant’s standard information and data. This means that the burners are monitored to obtain the maximum results in terms of performances, efficiency and reliability.  



Tenova Italimpianti hit a crucial milestone in the decarbonization of metals production: the successful development of TSX megawatt-size flameless combustion system burning any mixture of natural gas and hydrogen, up to 100% hydrogen The technology can be installed in industrial plants with potentially zero carbon dioxide emissions while maintaining NOx emissions well below the next future strictest limits – releasing less than 80 mg/Nm3 @ 5% of oxygen with furnace at 1250°C – also guaranteeing an optimal heat transfer uniformity within the furnace. The quantity of hydrogen can be simply regulated through the combustion zone control logic, allowing producers to adapt the fuel mixture to contingent needs without any mechanical intervention.



The combustion system is equipped with the novel SmartBurner Monitoring System (SBMS), which permits to monitor and optimize the burner’s performance, operation and maintenance thanks to a network of embedded sensors connected to the Tenova Digital infrastructure, through secure connection protocols and intrinsic system reliability. The data collected are post-processed locally on edge computing unit and remotely on Tenova Cloud, to monitor the status of the burner and implement breakthrough approaches to inspection, maintenance and tuning, also reducing safety risks related to on-site operations. The SmartBurner Industrial IoT platform represents the cornerstone of the next generation of industrial combustion systems.


  • Value for Money

    Value for Money

    • Reduced OPEX due to the strong energy saving with the regenerative burners
    • Complete modularity for spare parts supply
  • Efficiency


    • Optimal thermal uniformity with flameless combustion
    • Full control of the flame shape
    • Extended combustion stability
    • Highest energy saving (up to 20%) due to the high temperature of air combustion
  • Safety


    • No budget limitation for safety issues
  • Service


    • Engineering services for upgrades of existing equipment
    • Turnkey solutions and installations of integrated systems
    • Complete modularity for spare parts supply
  • Environment


    • Uncompassed reduction in NOx emissions
    • Proprietary combustion control technology
    • Excellent combustion efficiency minimizing CO2 emissions
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