Patent ID: 8784688

Claim:
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 (R s ) 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 ).