Reburn - Reburning of waste plastics for NOx reduction

The scope of this project is to explore the feasibility of using waste plastics to reduce nitrogen oxides (NOx) emissions from industrial combustion processes through the reburning technology. Experiments and modeling studies will be performed to understand the reburning process of waste plastics.

As a global environmental issue, the accumulation of waste plastics is as concerning as the NOx emissions from anthropogenic sources. With fuel reburning being an important NOx reduction technology, the utilization of waste plastics as the reburning fuel can be an environmentally friendly process reducing simultaneously the amount of waste plastics and NOx emissions. The hydrocarbon-rich fragments of some plastics are expected to be favorable for reducing NOx during the reburning process, but limited knowledge on this topic is available. The aim of this project is thus to investigate the NOx reduction efficiency of waste plastics during the reburning process.

Reburning experiments using various types of plastics will be performed on a fixed bed reactor and an entrained flow reactor to determine NOx reduction efficiency and explore optimal conditions for the process. Additionally, chemical kinetic modeling will be carried out to understand the reactions of NOx and plastics under reburning conditions. By exploring the feasibility of plastic waste reburning for NOx reduction and by evaluating the optimal operation conditions, this project can help to facilitate the sustainable utilization of waste plastics in industrial reburning processes.

The project is funded by Villum Experiment and runs from 1 January 2021 - 31 December 2022.

For more info, contact:

  • Hao Wu (Project manager)
  • Yifan Du (Postdoc)




Hao Wu
Associate Professor
DTU Chemical Engineering
+45 45 25 29 27


Yifan Du
DTU Chemical Engineering
+45 52 90 98 14