Gas Turbine System
The gas turbine system stabilizes ammonia combustion and minimizes NOx generation by using separate fuel supply lines for gaseous and liquid ammonia, ensuring stable operation from startup to rated load.
JP7814466B2Active Publication Date: 2026-02-16MITSUBISHI HEAVY IND LTD
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Patent Information
- Application Number
- JP2024177455
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-02-15
- Filing Date
- 2024-10-09
- Publication Date
- 2026-02-16
- Estimated Expiration
- 2042-02-09
AI Technical Summary
Technical Problem
When ammonia is used as a fuel for a gas turbine, there is a desire to reduce the generation of NOx and ensure stable combustion from startup to rated load operation.
Method used
A gas turbine system with a combustor and turbine, incorporating a heating unit to vaporize liquid ammonia and separate fuel supply lines for gaseous and liquid ammonia, allowing for controlled introduction of both forms based on fuel flow rate to stabilize combustion and suppress NOx generation.
Benefits of technology
Stable combustion of ammonia is achieved from startup to rated operation while minimizing NOx production, using liquid ammonia during low flow rates for stability and gaseous ammonia during high flow rates to reduce NOx.
✦ Generated by Eureka AI based on patent content.
Abstract
To suppress generation of NOx while stably burning ammonia.SOLUTION: A fuel supply facility includes: a main ammonia line in which liquid ammonia flows; a vaporizer connected to an end of the main ammonia line and heating and vaporizing the liquid ammonia by exchanging heat between a heating medium and the liquid ammonia; a gas ammonia line connected to the vaporizer and guiding gas ammonia that is ammonia vaporized by the vaporizer to a combustor of a gas turbine as fuel; a liquid ammonia line for guiding the liquid ammonia that has not undergone heat exchange with the heating medium in the vaporizer to the combustor as fuel; and a switching device capable of switching an ammonia supply state between a first state of guiding the gas ammonia from the gas ammonia line to the combustor and a second state of guiding the liquid ammonia from the liquid ammonia line to the combustor.SELECTED DRAWING: Figure 1
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