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POWER GENERATION APPARATUS AND COMBUSTION APPARATUS

外国特許コード F200010215
整理番号 LC01001WO
掲載日 2020年8月4日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2019JP046350
国際公開番号 WO 2020111114
国際出願日 令和元年11月27日(2019.11.27)
国際公開日 令和2年6月4日(2020.6.4)
優先権データ
  • 特願2018-225833 (2018.11.30) JP
発明の名称 (英語) POWER GENERATION APPARATUS AND COMBUSTION APPARATUS
発明の概要(英語) This power generation apparatus comprises: a combustor that burns ammonia and air and discharges a mixed gas after the burning; a supplier that includes a compressor that compresses the air and the mixed gas after the burning, supplies the ammonia to the ammonia supply port, and supplies the air to the air supply port in a state in which an equivalent ratio between the ammonia and the air is controlled to 1.1 to 1.4; a supplier that includes a compressor that compresses the air and the mixed gas after the burning, supplies the ammonia to the ammonia supply port, and supplies the air to the air supply port in a state in which an equivalent ratio of the ammonia and the air is controlled to 1.1 to 1.4; a gas turbine that rotates using the mixed gas after the burning as a driving fluid; a gas turbine power generator that generates power through the rotation of the gas turbine; a waste heat recovery boiler; a re-circulator that re-inputs, into the compressor, a portion of the mixed gas discharged from the waste heat recovery boiler after the burning; a steam turbine that rotates using steam vaporized by the waste heat recovery boiler as a driving fluid; and a steam turbine generator that generates power by transmitting the rotation of the steam turbine.
従来技術、競合技術の概要(英語) BACKGROUND ART
Heretofore, the use of fossil fuels such as coal or natural gas thermal power generation has been widely used. However, in the thermal power generation using fossil fuel, an adverse effect on global warming is a problem that a large quantity of carbon dioxide. Therefore, in recent years attention from worldwide to global warming, a new power generation method of the carbon dioxide does not occur is demanded. Does not produce carbon dioxide as an energy source, such as solar and wind in addition, does not occur during the combustion of hydrogen or ammonia and carbon dioxide has been attracting attention. Is hydrogen, in consideration of the influence to the environment to the amount of carbon dioxide discharged from the purified carbon zero free hydrogen is demanded. Such as the hydrogen free carbon, the hydrogen generated from the biomass and water electrolysis using renewable energy such as hydrogen is obtained.
Current, and ammonia as a raw material hydrogen-free carbon is generated has been studied. Ammonia, not containing a carbon atom, and does not generate the combustion of carbon dioxide, ammonia is used as the fuel, carbon dioxide emission reduction is expected. In addition, the ammonia, storage, transport and established techniques for, is promising as an energy carrier.
However, ammonia, a single combustion speed is low, stable combustion is a problem that difficult. In addition, the combustion of the ammonia, nitrogen oxide (NOx) the environmental load is high and the unburned amount of ammonia is generated. Ammonia, and irritating, designated substances from each other, the discharge of unburnt ammonia has been determined to be zero.
NOx discharged unburned and stable without ammonia ammonia for burning, fossil fuel or the like to the mixed combustion has been studied. Patent Document 1 is, in front of the combustor of the ammonia decomposition device is mounted, a part of the fuel is decomposed into nitrogen and hydrogen or ammonia, a mixture of ammonia and hydrogen obtained by the combustion method are disclosed. Patent Document 2 is, in the boiler stage combustion air supply unit 2 upstream of the fuel is supplied to the position in the ammonia fuel ammonia nitrogen and hydrogen in a reducing atmosphere reduces the disclosed methods. Patent Document 3 is, in the ammonia and the ammonia are previously obtained by the hydrogen-containing fuel including hydrogen, is supplied to the furnace are disclosed. Patent Document 4 is, by the heat of the exhaust gas, the ammonia gas to decompose and to the combustion engine is disclosed. Is the non-patent document 1, kerosene or ammonia and methane combustion stabilizes the mixed combustion, the mixing ratio of ammonia is increased gradually, and finally only the ammonia and the ammonia combustion air -fired was successful is reported. Is the non-patent document 2, NOx and ammonia in the air in the combustion of fuel and air and the generation of the relationship between the equivalence ratio is disclosed. Is the non-patent document 3, the rich ammonia (air equivalent ratio of ammonia and 1.0 or more) under the conditions of suppressing the occurrence of NO is disclosed.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • KOSHI Mitsuo
  • YAMADA Koichi
  • MITSUMORI Teruo
  • OTOMO Junichiro
  • IWASAKI Hiroshi
国際特許分類(IPC)
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