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Oxyfuel processes

There are many good reasons for using pure oxygen in a combustion process. Oxygen can either be used in oxygen-enriched combustion or it can replace air completely as in oxy-fuel processes.

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As part of an industrial process for material melting, the benefits include higher levels of thermal radiation, less gas volume, low NOx, higher temperatures and greater process efficiency.

Oxy-fuel combustion is also one of the main Carbon Capture technologies (CCS) for use in power and industrial processes. Another promising technology involving oxy-fuel combustion is Chemical Looping Combustion (CLC), which has the potential for low efficiency penalty for CO2 capture.

Why choose SINTEF?
At SINTEF we have more than 15 years experience in the study of both fundamental and applied oxy-fuel R&D covering for gas turbine, cement rotary kiln, and coal boiler. We have built up our expertise and an infrastructure designed to test the technology at industrially relevant scales. This includes a high pressure combustion rig (HIPROX facility, part of ECCSEL) and a plant to demonstrate an oxy-fuel power cycle based on a 100 kWe gas turbine (DEMOXYT facility, part of ECCSEL).

Typical projects for us are:

  • Design of burner and combustion units for new and retrofit applications
  • Assess retrofit of conventional combustion systems to oxy-fuel combustion and flue gas recirculation

The methods we use are:

  • Experimental facilities dedicated to oxy-fuel combustion at various scales from laboratory to pilot scale (up to 100's kW and 10 bar pressure) with air preheat and extensive capability for multi-species fuel mixtures
  • Advanced measurement capability: extensive transportable gas analyser park (FTIR, GC), high speed flame visualization, laser diagnostics for in-flame measurements (soot, velocity, …)
  • Numerical simulation of combustion and fluid flow processes using a range of software such as reaction kinetic tools and commercial CFD

Relevant projects:

  • HIPROX (high pressure combustion facility)
  • OXYFUN (fundamental oxy-gas turbine)
  • CAPEWASTE (oxy-fuel Waste-to-Energy plant)
  • OXYGT (oxy-fuel gas turbine combustion)
  • CEMCAP (oxy-fuel cement burner development)
  • MOCCA (oxy-coal flameless combustion)


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