The FBB uses the principle of the combustion of fuel suspended in the combustion air. Lime stone of an adapted grain size can be mixed with the fuel to remove SO2 in situ.
Features
- More flexible than conventional plants, FBB can burn a wide range of fuels (including biomass and coal) and fuels of low-quality.
- Low NOx formation thanks to lower temperature
- Effective neutralization and combustion thanks to particles’ recirculation and longer residence time
- High sulphur removal efficiency possible provided additional end-of-pipe FGT, e.g. Sorbacal® SP dry injection.
This process is adapted to small and medium capacities.