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US 9,145,849 B2Granted
Engine fueled by ammonia with selective reduction catalyst
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShunsuke Kasuga, Atushi Watanabe, Shin-ichiro Tanaka, Osamu Azegami
Life of this patent
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Abstract
A combuster (2) of a gas turbine engine (1) is fed with gaseous ammonia and that gaseous ammonia is burned to drive a turbine (3). Inside the exhaust passage of the gas turbine engine (1), an NOx selective reduction catalyst (10) is arranged. Inside one or both of the intake passage of the gas turbine engine (1) or the exhaust passage upstream of the NOx selective reduction catalyst (10), ammonia is fed. This ammonia is used to reduce the NOx which is contained in the exhaust gas at the NOx selective reduction catalyst (10).
Claims10
A gas turbine engine comprising:
- a compressor including an intake port;
- a turbine including stationary blades and moving blades;
- an NOx selective reduction catalyst arranged in an exhaust passage of the turbine, wherein the NOx selective reduction catalyst is configured to selectively reduce NOx contained in exhaust gas with unburnt ammonia exhausted into the exhaust passage;
- a combustor including a combustion chamber and a fuel feed device that feeds fuel comprised of gaseous ammonia into the combustion chamber with combustion gas in the combustion chamber being fed into the turbine;
- an ammonia feed device configured to feed liquid ammonia into the intake port of the compressor and at least one of an inside of the stationary blades or an inside of the moving blades of the turbine to cool air in the turbine;
- a gaseous ammonia generating device arranged in the exhaust passage to convert liquid ammonia to gaseous ammonia by using exhaust gas heat;
- a collection device configured to receive gaseous ammonia generated in the gaseous ammonia generating device and gaseous ammonia changed from a liquid state by cooling the stationary blades or the moving blades;
- and
- a gas compressor that boosts a pressure of the gaseous ammonia in the collection device and feeds the gaseous ammonia boosted in pressure into the fuel feed device.
6 more elements
Dependencies are inferred from the claim text.