Gas turbine plant with ammonia decomposition system
AssigneeDoosan Enerbility Co., Ltd.
InventorsByoung Gu Bak, Jin II 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 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.
Claims19
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 first superheater configured to superheat gaseous ammonia vaporized by the vaporizer;
- a decomposition reactor configured to thermally decompose the gaseous ammonia superheated by the first superheater;
- a separator configured to separate residual ammonia from the decomposition gas decomposed by the decomposition reactor;
- and
- a first 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 second combustor of a gas turbine,
- wherein exhaust gas discharged from the gas turbine is supplied to a heat recovery steam generator,
- wherein the first combustor is placed outside the heat recovery steam generator, and
- wherein the combustion gas supplies heat while passing directly through the decomposition reactor and the first superheater.
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 first superheater configured to superheat gaseous ammonia vaporized by the vaporizer;
- a decomposition reactor configured to thermally decompose the gaseous ammonia superheated by the first superheater;
- a separator configured to separate residual ammonia from the decomposition gas decomposed by the decomposition reactor;
- and
- a first combustor configured to generate combustion gas in such a way as to supply heat to the decomposition reactor,
- wherein a portion of the decomposition gas decomposed in the decomposition reactor is supplied to a second combustor of a gas turbine, and
- wherein synthesis gas consisting of hydrogen and nitrogen with the residual ammonia removed by the separator is supplied to the first combustor and combusted,
- wherein exhaust gas discharged from the gas turbine is supplied to a heat recovery steam generator,
- wherein the first combustor is placed outside the heat recovery steam generator, and
- wherein the combustion gas supplies heat while passing directly through the decomposition reactor and the first superheater.
Dependencies are inferred from the claim text.