EP 0076036 B1 19870429 - METHOD AND APPARATUS FOR BURNING FUEL IN STAGES
Title (en)
METHOD AND APPARATUS FOR BURNING FUEL IN STAGES
Publication
Application
Priority
US 30641281 A 19810928
Abstract (en)
[origin: EP0076036A1] 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 (examination)
Brochure No. D-148, July 1978 by HITACHI ZOSEN
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