EP 0076036 A1 19830406 - Method and apparatus for burning fuel in stages.
Title (en)
Method and apparatus for burning fuel in stages.
Title (de)
Verfahren und Vorrichtung zum Verbrennen von Brennstoff in Stufen.
Title (fr)
Procédé et dispositif pour brûler du combustible en étapes.
Publication
Application
Priority
US 30641281 A 19810928
Abstract (en)
Burner [10] for a furnace and a method of operating the burner [10] involving a primary [22,38] and secondary [28,46] combustion zone wherein staged fuel and air to both combustion zones [22,38;28,46] is provided. By injection of from about 40% to 60% of the liquid or gaseous hydrocarbon fuel along with about 90% of the total air required to a first reaction zone [22,38] and injection of the remaining fuel with the remaining 10% of the air to a secondary reaction zone [28,46] the formation of NOx is significantly suppressed. Such a burner is useful in minimizing NOx emissions for a variety of furnace types including both natural draft and forced draft furnaces.
IPC 1-7
IPC 8 full level
F23C 99/00 (2006.01); F23C 6/04 (2006.01); F23D 14/22 (2006.01)
CPC (source: EP)
F23C 6/047 (2013.01); F23D 14/22 (2013.01); F23C 2201/20 (2013.01); F23C 2201/30 (2013.01)
Citation (search report)
- US 4004875 A 19770125 - ZINK JOHN SMITH, et al
- EP 0006358 A1 19800109 - ZINK CO JOHN [US]
- EP 0017429 A2 19801015 - ZINK CO JOHN [US]
- EP 0007697 A1 19800206 - ZINK CO JOHN [US]
- DE 1229229 B 19661124 - ZINK CO JOHN
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0076036 A1 19830406; EP 0076036 B1 19870429; CA 1212617 A 19861014; DE 3276191 D1 19870604; JP S5875606 A 19830507
DOCDB simple family (application)
EP 82304508 A 19820826; CA 412055 A 19820923; DE 3276191 T 19820826; JP 16824982 A 19820927