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US 12,398,663 B2Granted
Gas turbine plant with ammonia decomposition system
AssigneeDoosan Enerbility Co., Ltd.
InventorsByoung Gu Bak, Jin Il Kim, Tae Woo Kim, Hong Geun Ha, Young Hoon Bae, Chil Yeong Seon, Ki Hyun Lee, Kwang Hun Jeong
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a gas turbine plant which decomposes ammonia and supplies it as fuel to a combustor of the gas turbine. The gas turbine plant supplies sufficient heat to the ammonia in order to thermally decompose the ammonia effectively, and separates the residual ammonia present in the decomposition gas and supplies it to a combustor of the gas turbine.
Claims12
A gas turbine plant with an ammonia decomposition system, the gas turbine plant comprising:
- a storage tank configured to store liquid ammonia;
- a supply pump configured to supply the liquid ammonia of the storage tank;
- a preheater configured to preheat the liquid ammonia supplied by the supply pump;
- a vaporizer configured to vaporize the liquid ammonia preheated by the preheater;
- a superheater configured to superheat gaseous ammonia vaporized by the vaporizer;
- a decomposition reactor configured to thermally decompose the gaseous ammonia superheated by the superheater;
- a separator configured to separate residual ammonia from decomposition gas decomposed by the decomposition reactor;
- and
- a second combustor configured to generate combustion gas in such a way as to supply heat to the decomposition reactor,
- wherein synthesis gas consisting of hydrogen and nitrogen with the residual ammonia removed by the separator is supplied to a first combustor of a gas turbine,
- wherein a heat transfer fluid absorbs heat from the combustion gas or the decomposition gas and supplies the heat to the liquid ammonia, the gaseous ammonia, the synthesis gas supplied to the first combustor, or fuel supplied to the second combustor;
- wherein a heat transfer fluid circuit through which the heat transfer fluid flows comprises:
- a pump;
- a first heat exchanger that absorbs heat by heat exchange with the combustion gas or the decomposition gas;
- and
- a second heat exchanger that supplies heat by heat exchange with the liquid ammonia, the gaseous ammonia, the synthesis gas supplied to the first combustor, or fuel supplied to the second combustor;
- wherein exhaust gas discharged from the gas turbine is supplied to a heat recovery steam generator,
- wherein steam generated by heat of the exhaust gas in the heat recovery steam generator is supplied to a steam turbine and drives the steam turbine, and then flows into a condenser, and water condensed in the condenser is supplied back to the heat recovery steam generator,
- wherein a portion of the water condensed in the condenser is supplied as the heat transfer fluid to the heat transfer fluid circuit, and
- wherein the heat transfer fluid circuit further comprises an internal heat exchanger in which the water discharged from the condenser and the water entering the condenser exchange heat.
17 more elements
A gas turbine plant with an ammonia decomposition system, the gas turbine plant comprising:
- a storage tank configured to store liquid ammonia;
- a supply pump configured to supply the liquid ammonia of the storage tank;
- a preheater configured to preheat the liquid ammonia supplied by the supply pump;
- a vaporizer configured to vaporize the liquid ammonia preheated by the preheater;
- a superheater configured to superheat gaseous ammonia vaporized by the vaporizer;
- a decomposition reactor configured to thermally decompose the gaseous ammonia superheated by the superheater;
- and
- a separator configured to separate residual ammonia from decomposition gas decomposed by the decomposition reactor,
- wherein synthesis gas consisting of hydrogen and nitrogen with the residual ammonia removed by the separator is supplied to a first combustor of a gas turbine,
- wherein a heat transfer fluid absorbs heat from the decomposition gas and supplies the heat to the liquid ammonia, the gaseous ammonia, or the synthesis gas supplied to the first combustor,
- wherein a heat transfer fluid circuit through which the heat transfer fluid flows comprises:
- a pump;
- a first heat exchanger that absorbs heat by heat exchange with the decomposition gas;
- and
- a second heat exchanger that supplies heat by heat exchange with the liquid ammonia, the gaseous ammonia, or the synthesis gas supplied to the first combustor;
- wherein exhaust gas discharged from the gas turbine is supplied to a heat recovery steam generator,
- wherein steam generated by heat of the exhaust gas in the heat recovery steam generator is supplied to a steam turbine and drives the steam turbine, and then flows into a condenser, and water condensed in the condenser is supplied back to the heat recovery steam generator,
- wherein a portion of the water condensed in the condenser is supplied as the heat transfer fluid to the heat transfer fluid circuit;
- and
- wherein the heat transfer fluid circuit further comprises an internal heat exchanger in which the water discharged from the condenser and the water entering the condenser exchange heat.
17 more elements
Dependencies are inferred from the claim text.