Method and plant for generating electrical energy

• Main Authors: BARIN,IHSAN,DR, HOEFER,HANS,DR, KLEFISCH,RICHARD
• Format: Patent
• Language: English; German
• Published: 08.01.1987
• Edition: 4
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BASIC ELECTRIC ELEMENTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ELECTRICITY; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; 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; WEAPONS

The invention relates to a method and a plant for generating electrical energy from a process gas obtained via gasification of fuels in an iron melt. In conventional processes, only the sensible heat contained in the process gas had previously been used for generating electricity by means of a steam turbine and generator, while the process gas itself was passed to other consumers. The process according to the invention and the plant required for carrying out the process provides an environmentally safe possibility for using pyrolytic and electrochemical conversion of carbon-containing fuels to generate electrical energy with a higher efficiency than in conventional power stations. This is achieved according to the invention by the carbon-containing fuels being gasified in an iron melt to produce a sulphur-free process gas, and the process gas then being directly converted into electrical energy in a high-temperature fuel cell battery. The hot waste gas produced is afterburned and in a combined gas-steam turbine is likewise converted into electrical energy.