Process and apparatus for the multi-stage combustion of fossil fuels

In order to increase the efficiency of fossil-fuelled combined heat and power stations with the guarantee that the metallic materials are substantially protected from corrosion, a process is proposed in which, in a first stage, the gases are (partially) burnt to give CO- and H2-rich reducing gases a...

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Bibliographische Detailangaben
1. Verfasser:	RADKE,DIETRICH,DR
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES FLUES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES SEPARATION SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	In order to increase the efficiency of fossil-fuelled combined heat and power stations with the guarantee that the metallic materials are substantially protected from corrosion, a process is proposed in which, in a first stage, the gases are (partially) burnt to give CO- and H2-rich reducing gases and immediately after this, without intermediate cooling, are freed from the gas constituents and dusts at temperatures of 700 DEG C to 1000 DEG C with conversion of the heat removed for temperature control into steam and the purified gases are burnt in the gas turbine. For this, it is advisable to use an apparatus having, successively downstream of each other, a coal gasifier (3), reactor and gas-solids separation device (5) and further purification circuit (8), composed of filter bags, having an after burning circuit (11). Coal gasifier (3), separation device (5) and after burning circuit (11) are connected by shared heating surfaces (15) which serve for the evaporation of liquids which can be fed to a steam turbine unit (18).