Oxy-combustion

Our patented combustion technologies are based on enriched air with pure oxygen.

Innovation Campus Shanghai

What is it for?

Our proven and patented combustion technologies based on enriching air with pure oxygen will support your needs for making furnaces in the glass and metal industries more energy and cost efficient while also reducing pollutants.

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Oxy-combustion at a glance

Air is the most common oxidizing agent in most industrial processes. Combustion occurs due to the reaction of oxygen and combustible molecules like fuel or natural gases. The process of enriching air with pure oxygen is oxy-combustion. This is done to reduce fuel consumption and combined with complete removal of nitrogen from the air, the reduction is more effective. It also helps reduce carbon dioxide and nitrogen oxide emissions that are harmful to humans and the environment.

Several methods enrich air with oxygen and generate optimum heat transfers to the molten product:
  • Adding oxygen to air before injection into the furnace
  • Direct Oxygen injection into the furnace using lances
  • Using oxy-fuel burners for distribution and injection of pure oxygen and fuel

Gases used for Oxy-combustion

Gas applications under Oxy-combustion

  • Oxygen enrichment for debottlenecking

    We offer Oxynator, our gas-gas mixing device using cross-flow radial injection. This reduces the mixing distance and prevents high oxygen concentrations near air inlet pipe walls.

  • Oxygen enrichment of recovery boilers

    Recovery boiler capacity limits pulp production. Air Liquide with JANSSEN, has developed an enrichment technology for oxygen combustion that allows you to increase capacity safely by 10 to 20%.
     

  • Oxy Boosting

    Pure oxygen combustion through Oxy Boosting is done by introducing a glass furnace to boost productivity and extend the furnace's lifetime before refurbishment. 

  • Full oxygen glass fusion

    Air Liquide introduced the HEATOX technology to the market for the preheating of oxygen and fuel gas. This technology generates increased energy efficiency and helps position oxy-combustion as the benchmark technology for glass melting. 

  • Oxygen Feeders

    The glass, once produced in the melting furnace, is conveyed to the forming machines by distribution channels called “feeders”. The molten glass is maintained at temperature by Air Liquide’s burners supplied with gas and air at ambient temperature.
     

  • Reburning and Polishing of surfaces

    Air Liquide supplies oxy-natural based gas and oxy-hydrogen based combustion technologies to polish the product surface and remove the defaults present in glass.

  • Combustion (heating)

    To support combustion applications such as ladle heating and billet/slab reheating, we offer oxygen as well as related equipment and services.
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  • Ladle metallurgy furnace

    We supply argon and nitrogen for the ladle metallurgy furnace to stir and refine the melted steel. We help the refinement of melted steel in the ladle metallurgy furnace by supplying Argon and Nitrogen.
     

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