Method for the combined residue gasification of liquid and solid fuels
AssigneeThyssenkrupp Uhde GmbH
InventorsChristoph Hanrott, Max Heinritz-Adrian, Adrian Brandl
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Abstract
A process for joint entrained-bed gasification of ash-containing solid fuels and liquid fuels which are fed separately of each other to the coal gasification reactor via several burners, said burners having a concentric firing angle of greater than 0 degree such that soot formation is reduced and the conversion efficiency is increased, and the solid is conveyed to the gasification reactor together with an inert gas, and at least part of the ash-containing solid fuel contains fine coal particles which originate from coal mining and are not suited for fixed-bed gasification, and the liquid ash-containing fuel contains residues from a fixed-bed gasification.
Claims10
Process for the recovery of syngas by the gasification of ash-containing liquid residues from a fixed-bed gasification at a pressure of 0.3 to 8.0 MPa and a temperature above 1400° C. using oxygen-containing gaseous gasification agents in a cooled reactor,
- characterised in that
- the ash-containing liquid fuel is fed to the reactor together with an ash-containing solid fuel, and
- the liquid and the solid fuel are fed to the reactor separately via several burner systems, and
- the liquid and the solid fuel are fed to the reactor secantly to the circumference of the reactor at a firing angle above 0°, and
- the ash-containing solid fuel, dispersed in a carrier gas is fed to the reactor, and
- the ash-containing solid fuel constitutes at least part of the portion of fine coal particles from coal mining which cannot be used for fixed-bed gasification.
Dependencies are inferred from the claim text.