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US 12,510,022 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
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Abstract
The present disclosure relates to a gas turbine plant which decomposes ammonia and supplies it as fuel to a combustor of a 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.
Claims8
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 from the storage tank;
- a preheater configured to preheat the liquid ammonia supplied by the supply pump;
- a vaporizer configured to vaporize at least a portion of the liquid ammonia preheated by the preheater to form a gaseous ammonia;
- a first superheater configured to superheat the gaseous ammonia vaporized by the vaporizer;
- a first decomposition reactor of the ammonia decomposition system configured to thermally decompose at least a portion of the gaseous ammonia superheated by the first superheater to form a first decomposition gas;
- and
- a second superheater that superheats the first decomposition gas decomposed by the first decomposition reactor and supplies the superheated first decomposition gas to a second decomposition reactor;
- the second decomposition reactor thermally decomposed at least a portion of a residual ammonia contained in the superheated first decomposition gas to form a second decomposition gas;
- a separator configured to receive at least a portion of the second decomposition gas from the second decomposition reactor and separate a residual ammonia contained in the at least a portion of the second decomposition gas to form a synthesis gas consisting of hydrogen and nitrogen;
- wherein at least a portion of the synthesis gas exhausted from the separator is supplied to a first combustor of a gas turbine of the gas turbine plant to form an exhaust gas,
- wherein the exhaust gas discharged from the gas turbine is branched as a first portion of the exhaust gas supplying heat while passing through the first decomposition reactor and as a second portion of the exhaust gas supplied to a heat recovery steam generator,
- wherein the gas turbine plant further comprises a second combustor configured to generate a combustion gas that supplies heat while passing through the second decomposition reactor and the second superheater.
10 more elements
Dependencies are inferred from the claim text.