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Fremgangsmåte for å øke energi- og kostnadseffektivitet i et gasskraftverk eller kraftferk; et varmekraftverk for samme og et brennkammer for bruk i tilknytning til slike verk.
Fremgangsmåte for å øke energi- og kostnadseffektivitet i et gasskraftverk eller kraftferk; et varmekraftverk for samme og et brennkammer for bruk i tilknytning til slike verk.
The invention relates to a method for increasing the energy and cost effectiveness of a gas power plant or thermal power plant, and for energy and cost effective COSUB2/SUB capturing from flue gas with COSUB2/SUB enriched content. The plant comprises preferably two gas turbines comprising at least a compressor (13) and a turbine (14) and further comprising a combustor (10), the flue gas from the combustor (10) being expanded, cooled down and passed through a cleaning unit (11) where at least major parts of the COSUB2/SUB content is removed from the flue gas. Re-circulated flue gas is further used for cooling down the flame tube (40) in the combustor (10), and enriching the COSUB2/SUB content of the flue gas, the fresh air supplied to the combustor (10) providing a nearly stoichiometric combustion. The invention relates to an improved combustor system resulting in increased energy efficiency and increased output maintained at a highest possible level. The invention also relates to a power plant using the method.
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