Patent ID: 7037473

Claim:
An appliance for gasification of carbon-containing, ash-free fuel, residual and waste materials using an oxygen-containing oxidizing agent at temperatures above 850° C. and at pressures between atmospheric pressure and 80 bar, comprising a reaction chamber designed as an entrained-flow reactor having a contour delimited by a cooled reactor wall and having an inlet opening and an outlet opening, the cooled reactor wall having the following structure from the outside inward: a pressure shell arranged and dimensioned for absorbing the pressure difference between the reactor chamber and the ambient pressure outside of the reactor wall; a water-cooled cooling gap; a cooling wall arranged inside of the pressure shell, the water-cooled cooling gap being defined by the pressure shell and the cooling wall, said cooling wall comprising a metal wall with a ceramic protection layer of ceramic mass having high thermal conductivity arranged on a side of the cooling wall facing away from the cooling gap, wherein said metal wall includes pins penetrating into said protection layer for mechanically holding said metal wall onto said protection layer; and a ceramic refractory lining on an internal surface of the cooling wall facing the reaction chamber such that said ceramic protection layer is arranged between said metal wall and said ceramic refractory lining, the cooling gap between the pressure shell and the cooling wall being operable, with a filling of pressurized water, such that pressure in the cooling gap is higher than pressure in the gasification chamber.