Patent ID: 7776114

Claim:
A process for the endothermic gasification of solid carbon, comprising: conducting a partial oxidation of a fuel to produce a partial oxidation gas that contains CO 2 and H 2 O and liquid slag droplets; guiding the liquid slag droplets and an exit gas stream of the partial oxidation gas in a downward direction and deflecting the exit gas stream, thereby separating the liquid slag droplets from the exit gas stream of the partial oxidation gas; deflecting the exit gas stream separated from liquid slag droplets to obtain a rising gas stream; and conducting an endothermic gasification by reacting the rising gas stream in an entrained bed with an addition of solid reactive carbon particles having a grain diameter of up to 20 mm, while creating a greater relative difference in the speed of the reactive carbon particles with respect to the speed of the gas stream at the exit end of the entrained bed than at a point at which the reactive carbon particles are added, the creating a greater relative difference in the speed comprising: maintaining the speed of the rising gas stream at an inlet point where the carbon is added higher than the suspension rate of the reactive carbon particles; and maintaining the speed of the rising gas stream at the exit end of the entrained bed lower than the suspension rate of the reactive carbon particles.