| 发明名称 |
Method and apparatus for operating a furnace |
| 摘要 |
The present invention relates to a method for operating combustion process in a furnace whereby a primary fuel and a secondary fuel are burnt, to an apparatus for injecting liquid oxygen into the furnace and also to the corresponding furnace. The method comprises at least the following steps:
the primary fuel and a primary oxidizer are injected into the furnace to create a primary combustion zone,liquid oxygen is injected in as secondary oxidizer such that the secondary fuel combusts with the secondary oxidizer thereby creating a distinct secondary combustion zone.;The invention makes it possible for a secondary fuel having a significantly lower calorific value than the primary fuel to be burnt completely in the furnace, such that a product to be produced in the furnace has an improved quality. |
| 申请公布号 |
US8974226(B2) |
申请公布日期 |
2015.03.10 |
| 申请号 |
US201214007906 |
申请日期 |
2012.03.27 |
| 申请人 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
发明人 |
Rheker Frank |
| 分类号 |
F23G5/14;F23C6/02;F23G5/12;F23G5/20;F23G5/44;F23G7/12;F23L7/00;F27B7/36;F27D99/00;F23L9/00 |
主分类号 |
F23G5/14 |
| 代理机构 |
|
代理人 |
Cronin Christopher J. |
| 主权项 |
1. A method for operating a combustion process in a furnace whereby a primary fuel and a secondary fuel are burnt, the method comprising the steps of:
injecting the primary fuel and the primary oxidizer into the furnace so to create a primary combustion zone in which the primary fuel burns with the primary oxidizer, the primary oxidizer being selected from the group consisting of air, oxygen-enriched air, and a gas having an oxygen content of more than 98% by volume; and injecting liquid oxygen into the furnace as a secondary oxidizer such that the secondary oxidizer, together with the secondary fuel, creates a secondary combustion zone, which is distinct from the primary combustion zone. |
| 地址 |
Paris FR |
