Reactor and process for gasifying and/or melting of feed materials

Reactor (100) for gasifying and/or melting feed materials of any one of claims through 7, wherein the pre-treatment section (114), the intermediate section (115), the upper oxidation section (116), the upper reduction section (118), the gas outlet section (120), the conical lower reduction section (138) and the conical lower oxidation zone (136) each comprise a refractory lining, wherein each refractory lining of each section comprises between two and six layers, each layer being made of a different material.

Reactor (100) for gasifying and/or melting feed materials according to any one of the previous claims, wherein at least one further tuyere (139) is arranged in a further level of the conical lower reduction section (138) or one further tuyere is arranged in a further level of the conical lower reduction section (138) and at least one additional tuyere is arranged in the upper reduction section (118).

Reactor (100) for the gasifying and/or melting of feed materials according to any one of the previous claims, wherein at least one further tuyere is arranged in a further level of the conical lower oxidation section (136).

Reactor (100) for the gasifying and/or melting of feed materials of any one of the previous claims, wherein an internal cross-sectional area of the upper oxidation section (116) is formed as a non-circular surface, in particular as a rounded rectangle, stadium, oval, ellipse, epicycloid, multi-circle, superellipse n>1, super-circle n=4 or as a polygon with five or more corners, such as a truncated square, a regular polygon or parallelogram.

Reactor (100) for gasifying and/or melting feed materials of any one of the previous claims, wherein only one gas outlet (121) is arranged in the gas outlet section (120).

Reactor (100) for gasifying and/or melting feed materials of any one of the previous claims, wherein the central vertical longitudinal axis of the co-current section (110) is arranged horizontally offset with respect to the central vertical longitudinal axis of the gas outlet section (120) and the gas countercurrent section (130).

Reactor (100) for gasifying and/or melting feed materials of any one of the previous claims, wherein a heat exchanger and/or a steam generator is coupled downstream to the gas outlet section (120) and gas suction means are coupled downstream to the heat exchanger or steam generator.

Reactor (100) for gasifying and/or melting feed materials of any one of the previous claims, wherein high-temperature gate valves are arranged in the shell of the upper oxidation section (116) and/or the conical lower oxidation section (136), the high-temperature gate valves being designed to allow the tuyeres (117) to be replaced during use of the reactor.