Syretransport i processer med syrebärare

Climate change is one of the greatest challenges of our time, requiring all tools available to mankind to achieve its stop and reversal.

One such tool is solid metal oxide-based oxygen carrier particles that enable the provision of oxygen in solid form for combustion or for any type of fuel conversion.

Oxygen carriers facilitate CO2-capture with Chemical Looping Combustion (CLC), reforming, gasification, as well as more efficient combustion of particular waste and bio fuels.This project focuses on the fundamental mechanism for oxygen transport in oxygen carriers-based applications.

By using different isotopes of oxygen (16O and 18O) for different oxygen-containing species in the process, it is possible to track the oxygen transport.

In the gas phase by analyzing the off-gases from the reaction with a mass spectrometer, and in the solid oxygen carriers by Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS).

Combining these methods with state-of-the-art oxygen carrier testing in fluidized bed reactor systems will generate a new method and provide reaction mechanism that in turn facilitates scale-up of much needed oxygen carrier-based climate mitigation techniques. The work will be carried out as a four-year doctoral project supervised by me prof.

Henrik Leion.