Fuel combustor, combustion turbine, and method of combustion
The RRQL combustor addresses ammonia's combustion challenges by incorporating a relaxation zone to reduce NOx emissions, achieving significantly lower emissions than conventional systems, making ammonia a viable decarbonization fuel.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- GEORGIA TECH RES CORP
- Filing Date
- 2024-06-25
- Publication Date
- 2026-07-02
AI Technical Summary
Ammonia combustion produces significantly higher NOx emissions and poses challenges due to its limited flammability range, lower flame temperature, and slower laminar flame speeds, making it less viable as a decarbonization fuel, and existing combustor designs fail to effectively manage these issues.
A 'rich-relaxation-quench-lean' (RRQL) combustor design with multiple stages: a fuel-rich combustion zone, a relaxation zone for NOx level relaxation, a quench zone, and a fuel-lean combustion zone, allowing high NOx levels to relax to equilibrium levels before further combustion.
The RRQL combustor design effectively reduces NOx emissions to low levels, achieving up to two orders of magnitude lower emissions than conventional systems, without requiring water or steam injection, and is applicable in various power generation and heating applications.
Smart Images
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