Flame straightening in a furnace
US7686611B2 · kind B2 · utility
5Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2005 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2900/05081
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and furnace for generating straightened flames in a steam methane reformer or ethylene cracking furnace where fuel-staged burners are used. Fuel staging may be used for reducing NOx emissions. Criteria for generating straightened flames are provided. These criteria relate to oxidant conduit geometry and furnace geometry. Techniques for modifying the furnace and/or burners to achieve these criteria are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.