Ammonia fired combustor operating method
US12222106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2022 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jun 4, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R2900/00004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method includes delivering fuel and a first portion of oxidant as a rich mixture to the first zone of the combustion chamber. The fuel includes ammonia (NH3). The method further includes burning the rich mixture in the first zone. Combustion gases containing nitrogen oxides (NOx) are produced. The method further includes delivering a second portion of oxidant into the second zone to break down unburned ammonia into ammonia intermediates in the second zone. The nitrogen oxides (NOx) are consumed by reacting with the ammonia intermediates in the second zone. Byproduct hydrogen is produced as a result of breaking down the unburned ammonia into the ammonia intermediates. The method further includes delivering a third portion of oxidant into the third zone. The byproduct hydrogen is burned in the third zone. The third portion of oxidant is greater than the first portion of oxidant and the second portion of oxidant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.