Method and equipment for producing synthesis gas

摘要

A method and equipment for producing synthesis gas (S) from solid carbon particles (C), the carbon particles (C) being obtained by pyrolysis, gasification of the carbon particles (C) occurs by indirect heating of the carbon particles (C) in the presence of a process gas (P) in the same space where the carbon particles (C) are present, and the synthesis gas (S) generated during the gasification is discharged from the space. The method is characterised in that the carbon particles (C) and the process gas (P) are located in a reactor (1), and the indirect heating occurs by way of radiant heat from burners (Br1-Brn) located in the reactor (1).

主权项

1. A method for producing synthesis gas, comprising:
obtaining solid carbon particles and burner fuel by pyrolysis; providing the carbon particles from the pyrolysis in a reactor, together with a process gas; providing the fuel from the pyrolysis to burners having closed ends located in the reactor, at least one burner being provided with means for supplying fuel to an internal space of the burners, the means for supplying fuel are located on an outside of the reactor, a heat exchanger is located adjacent to the means for supplying fuel to the at least one burner for heating of oxidising agent supplied to the at least one burner; gasifying the carbon particles by indirect heating of the carbon particles and the process gas in the same space where the carbon particles are present, by means of radiant heat from the burners, wherein combustion inside the burners is separated from gasification flow such that no direct gas exchange occurs in the reactor between the burners and the process gas, the pyrolysis is preceeding the gasification in a separate stage, and a temperature inside the reactor is 900-1300° C.; and discharging the synthesis gas generated during the gasification from said space.