Patent ID: 7815875

Claim:
A device for reacting streams of gas at temperatures exceeding 1000° C., comprising: a reaction space surrounded by a wall with an inflow opening for introducing gas streams to be reacted, and an outflow opening for discharging reacted gas streams, said reaction space having a geometrical shape that prevents large-area circulation flows and that promotes a directed gas flow in the reaction space, with a lengthwise extension from the inflow opening to the outflow opening, and wherein the inner surface of said wall, facing the reaction space, is provided with a heat-insulating layer having a porous foam and/or fiber structure, said heat-insulating layer exhibiting a heat conduction of 0.14 to 0.5 W/mK at temperatures of up to 1600° C., the diameter of the inflow opening and the diameter of the outflow opening are both smaller than the largest diameter of the reaction space, the ratio of the area of the inflow opening cross section to the maximum reaction space cross section is between 1/2 and 1/20, and wherein the ratio of the diameter of the reaction space to the length of the reaction space is between 4/10 and 1/10.