CFD modelling of biomass slow pyrolysis in screw reactors for the production of biochar and charcoal

Summary

Slow pyrolysis is a biomass conversion process in which biomass is converted into char with the aim of improving its solid fuel properties, or to serve in new applications such as biochar (soil amendment). In this project, a CFD reactor model will be developed to simulate these slow pyrolysis processes, as carried out in a screw reactor. A multistage approach is followed in which, first a single particle pyrolysis model is developed. Next, the single particle model is integrated into a population balance model, which will be coupled to the CFD model of the reactor domain.

 

Figure: Simulation of mixing behavior of a granular solid in a fully filled screw reactor

Figure: Simulation of mixing behavior of a granular solid in a fully filled screw reactor

    Project administration

    Researcher: Xiaogang Shi

    Funding: UGent Special Research Fund

    Project duration: 01.09.2013 - 31.08.2017