Method and device for carbon injection and recirculation of synthesis gas when producing synthesis gas

摘要

Method and device for introducing pulverulent material (C) into a gasification reactor (2), wherein a process gas (P) supplied to a gasification reactor (2) is reduced to a synthesis gas (S) by the pulverulent material (C) and the pulverulent material (C) is introduced into the gasification reactor (2) via an inlet area, a negative pressure being generated in the inlet area for the pulverulent material (C) via a Laval nozzle (15) and the negative pressure being generated in that the process gas (P) passes through the Laval nozzle (15). The method is characterized in that the process gas (P) expands in a gasification space (5) in the gasification reactor (2).

主权项

1. A method of introducing pulverulent material (C) into a gasification reactor (2), via an injection nozzle comprising:
supplying a process gas (P) to the gasification reactor (2) to be reduced to a synthesis gas (S) by the pulverulent material (C); introducing the pulverulent material (C) into the gasification reactor (2) via an inlet area; mixing recirculated reaction product (Rs) with the pulverulent material (C) within the injection nozzle as the pulverulent material (C) is introduced into the gasification reactor (2), the reaction product being recycled synthesis gas; and generating a vacuum in the inlet area via a Laval nozzle (15) and the vacuum being generated so that the process gas (P) passes through the Laval nozzle (15), wherein the process gas (P) expands in a gasification space (5) in the gasification reactor (2).