DEVICE FOR PRODUCING A PRODUCT GAS FROM A FUEL, SUCH AS BIOMASS

摘要

A device for producing a product gas from a fuel, such as biomass, comprises a reactor which is delimited by a base and reactor walls. The reactor walls comprise a peripheral wall and an upper wall. The reactor comprises a supply opening for the supplying of biomass, as well as at least one riser for chemically converting the biomass supplied to a product gas and a solid. The riser is provided inside the peripheral wall and comprises an upper end and a tower end. The reactor furthermore has a discharge opening for discharging the product gas. The riser is attached to at least one reactor wall. The lower end of the riser is at a distance above at least one section of the base which is underneath it and is freely movable under the effect of thermal expansion.