SP2 - Conversion mechanisms

Michaël Becidan

SP2 Leader,
SINTEF Energy Research


SP2 encompasses combustion, gasification, pyrolysis, anaerobic digestion and torrefaction. The work is especially focused on low-quality feedstocks, which are central in increasing the bioenergy production in Norway. Challenging biomass includes forest and agricultural residues, organic waste and sewage sludge, which are all largely unexploited in Norway today.

Instantaneous iso-surfaces of temperature (K) resulting from simulations (from: Dmitry A. Lysenko et al., Numerical simulations of the Sandia Flame D using the Eddy Dissipation Concept)

WP2.1 – Combustion - Leader: Øyvind Skreiberg 

WP2.2 – Gasification - Leader: Michaël Becidan 

WP2.3 – Pyrolysis - Leader: Khanh-Quang Tran

WP2.4 – Anaerobic Digestion - Leader: Roald Sørheim

WP2.5 – KMB STOP - Leader: Øyvind Skreiberg 


Important aspects to mention from the work in SP2 is the mix of long-term challenges together with short-term "troubleshooting" discussions. The methods used span from experiments in laboratory-scale reactors, advanced measurement equipment and analytical methods, to investigations at full-scale facilities, and additionally modelling as well as desk studies. In 2015 there has been strong involvement of CenBio industry in both work at full-scale plants and in writing articles. Non-CenBio actors have been involved whenever necessary for the benefit of CenBio.


Concrete 2015 achievements in SP2

  • Ash deposits collection and advanced analysis at two partners, EGE and Statkraft Varme, in order to propose abatement methods. Two conference articles summarise the main results
  • Full-scale bioheat plant measurement campaign to map the concentrations of a number of gaseous species inside the combustion chamber, at different locations and at varying operating conditions in order to better understand formation mechanisms
  • CFD modelling activity on the aforementioned plant, where the essential part of the work in 2015 has been on improving the model of the conversion of the fuel bed
  • In-depth study of selected ash-forming elements applied to the Energos gasification process using thermodynamic modelling, the main goal being a better control over the corrosion risk
  • Study of the population dynamics of biogas reactors at laboratory scale
  • Quang-Vu Bach (NTNU) defended his PhD thesis on wet torrefaction in January 2015



More information on the research activities can be found in the latest CenBio Annual Report.

Published July 28, 2016