APPARATUS FOR GASIFYING A FUEL

摘要

The invention provides an apparatus (3) for gasifying a fuel to form synthesis gas wherein also a slag (11) is formed. The apparatus (3) comprises: - a pressure shell (1) ; - a slag bath (15) ; - a gasifier wall (4) arranged inside the pressure shell (1) defining a gasification chamber (2) comprising a converging wall part (14) that is provided with a slag discharge opening (5), located above the quench fluid in the slag bath (15) ; - a free-fall trajectory (10) for the slag (11) ; - a heat shield (21) arranged above the slag bath (15) between the free-fall trajectory (10) and the pressure shell (1), the heat shield (21) comprising a wall structure for allowing passage of a cooling fluid, the wall structure comprising an upper wall part (23) and a lower wall part (24) . The lower wall part (23) of the heat shield (21) is essentially refractory free.