Gasification of pelletized renewable fuel for clean energy production

► Gasification of wood and straw pellets is provided in a downdraft gasifier. ► The additional heat supply by propane flame ensures stable and controllable process. ► Sub-stoichiometric air supply enhances formation of volatiles in the pyrolysis zone. ► External heat supply leads to a higher volatile production. ► Increased external heat supply promotes an enhanced thermal decomposition of biomass.