EP 1335163 A1 20030813 - Ultra low NOx burner for process heating
Title (en)
Ultra low NOx burner for process heating
Title (de)
Brenner für Prozessheizung mit sehr niedrigem NOx Ausstoss
Title (fr)
Brûleur pour chauffage de procédé à très faible émission de NOx
Publication
Application
Priority
- US 6259702 A 20020131
- US 6745002 A 20020205
Abstract (en)
An ultra low NOx burner for process heating is provided which includes a fluid based flame stabilizer which provides a fuel-lean flame at an equivalence ratio in the range of phi = 0.05 to phi = 0.3 and fuel staging lances surrounding the flame stabilizer in circular, flat, or load shaping profiles, each lance comprising a pipe having a staging nozzle at a firing end thereof, each lance having at least one hole for staging fuel injection, and each hole having a radial divergence angle and an axial divergence angle. The at least one hole and the divergence angles provide circular, flat or load shaping flame pattern. The burner provides NOx emissions of less than 9 ppmv at near stoichiometry combustion conditions. <IMAGE>
IPC 1-7
IPC 8 full level
F23C 5/32 (2006.01); F23C 6/04 (2006.01); F23D 14/22 (2006.01); F23D 14/58 (2006.01); F23M 5/02 (2006.01)
CPC (source: EP)
F23C 5/32 (2013.01); F23C 6/047 (2013.01); F23D 14/22 (2013.01); F23D 14/58 (2013.01); F23M 5/025 (2013.01); F23C 2201/20 (2013.01); F23C 2202/40 (2013.01); F23D 2900/00011 (2013.01)
Citation (applicant)
- US 5073105 A 19911217 - MARTIN RICHARD R [US], et al
- US 5275552 A 19940104 - SCHWARTZ ROBERT E [US], et al
- US 5195884 A 19930323 - SCHWARTZ ROBERT E [US], et al
- US 5667376 A 19970916 - ROBERTSON THOMAS F [US], et al
- US 5957682 A 19990928 - KAMAL AZFAR [US], et al
- US 5413477 A 19950509 - MORELAND DONALD P [US]
- US 6027330 A 20000222 - LIFSHITS VLADIMIR [US]
- R.K.AGRAWAL AND S:C:WOOD: "Cost-Effective NOx Reduction", CHEMICAL ENGINEERING, 1 February 2001 (2001-02-01)
- D.KEITH PATRICK: "Reduction and Control of NOx Emissions from High Temperature Industrial Processes.", INDUSTRIAL HEATING, 1 March 1998 (1998-03-01)
Citation (search report)
- [AD] US 5275552 A 19940104 - SCHWARTZ ROBERT E [US], et al
- [A] US 4505666 A 19850319 - MARTIN RICHARD R [US], et al
- [A] EP 0573300 A2 19931208 - NIPPON FURNACE KOGYO KK [JP]
- [A] US 5284438 A 19940208 - MCGILL EUGENE C [US], et al
- [A] US 5135387 A 19920804 - MARTIN MICHAEL J [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
EP 1335163 A1 20030813; EP 1335163 B1 20060906; EP 1335163 B2 20120509; AT E338916 T1 20060915; DE 60308071 D1 20061019; DE 60308071 T2 20070301; DE 60308071 T3 20121025; ES 2271391 T3 20070416; ES 2271391 T5 20120702
DOCDB simple family (application)
EP 03001381 A 20030127; AT 03001381 T 20030127; DE 60308071 T 20030127; ES 03001381 T 20030127