Burner with flue gas recirculation

Details Burner with flue gas recirculation Burner with flue gas recirculation

2005-05-10

2005-05-10

Basichas, Alfred (Department: 3749)

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

C431S005000, C126S09100A

Reexamination Certificate

active

06890172

ABSTRACT:
A burner for use in furnaces such as the type employed in steam cracking. The burner includes a primary air chamber, a burner tube including (i) a downstream end, (ii) an upstream end in fluid communication with the primary air chamber for receiving air, flue gas or mixtures thereof and fuel, and (iii) a burner tip mounted on the downstream end of the burner tube and directed to a first opening in the furnace, so that combustion of a combustible mixture including fuel and air takes place downstream of the burner tip, at least one flue gas recirculation duct having a first end at a second opening in the furnace and a second end opening into the primary air chamber, the at least one flue gas recirculation duct having at least one primary air channel in fluid communication with the at least one flue gas recirculation duct, and means for drawing flue gas from the furnace and primary air from a source of air, through the duct and into the primary air chamber, in response to an inspirating effect of uncombusted fuel flowing through the burner tube from its upstream end towards its downstream end. Optionally the flue gas recirculation duct has a plate member extending into the primary air chamber to create flow eddies to enhance further mixing of flue gas and air.

REFERENCES:
patent: 2368370 (1945-01-01), Maxon
patent: 2813578 (1957-11-01), Ferguson
patent: 2918117 (1959-12-01), Griffin
patent: 2983312 (1961-05-01), Finley et al.
patent: 3880570 (1975-04-01), Marshall
patent: 4004875 (1977-01-01), Zink et al.
patent: 4089629 (1978-05-01), Baumgartner et al.
patent: 4130388 (1978-12-01), Flanagan
patent: 4230445 (1980-10-01), Janssen
patent: 4257763 (1981-03-01), Reed
patent: 4575332 (1986-03-01), Oppenberg et al.
patent: 4629413 (1986-12-01), Michelson et al.
patent: 4708638 (1987-11-01), Brazier et al.
patent: 4739713 (1988-04-01), Vier et al.
patent: 4748919 (1988-06-01), Campobenedetto et al.
patent: 4815966 (1989-03-01), Janssen
patent: 4828483 (1989-05-01), Finke
patent: 4963089 (1990-10-01), Spielman
patent: 4995807 (1991-02-01), Rampley et al.
patent: 5044931 (1991-09-01), Van Eerden et al.
patent: 5073105 (1991-12-01), Martin et al.
patent: 5092761 (1992-03-01), Dinocolantonio
patent: 5098282 (1992-03-01), Schwartz et al.
patent: 5135387 (1992-08-01), Martin et al.
patent: 5152463 (1992-10-01), Mao et al.
patent: 5154596 (1992-10-01), Schwartz et al.
patent: 5195884 (1993-03-01), Schwartz et al.
patent: 5201650 (1993-04-01), Johnson
patent: 5224851 (1993-07-01), Johnson
patent: 5238395 (1993-08-01), Schwartz et al.
patent: 5254325 (1993-10-01), Yamasaki et al.
patent: 5263849 (1993-11-01), Irwin et al.
patent: 5269679 (1993-12-01), Syska et al.
patent: 5275554 (1994-01-01), Faulkner
patent: 5284438 (1994-02-01), McGill et al.
patent: 5299930 (1994-04-01), Weidman
patent: 5316469 (1994-05-01), Martin et al.
patent: 5326254 (1994-07-01), Munk
patent: 5344307 (1994-09-01), Schwartz et al.
patent: 5350293 (1994-09-01), Khinkis et al.
patent: 5370526 (1994-12-01), Buschulte et al.
patent: 5407345 (1995-04-01), Robertson et al.
patent: 5413477 (1995-05-01), Moreland
patent: 5470224 (1995-11-01), Bortz
patent: 5472341 (1995-12-01), Meeks
patent: 5542839 (1996-08-01), Kelly
patent: 5562438 (1996-10-01), Gordon et al.
patent: 5584684 (1996-12-01), Dobbeling et al.
patent: 5603906 (1997-02-01), Lang et al.
patent: 5611682 (1997-03-01), Slavejkov et al.
patent: 5624253 (1997-04-01), Sulzhik et al.
patent: 5685707 (1997-11-01), Ramsdell et al.
patent: 5688115 (1997-11-01), Johnson
patent: 5807094 (1998-09-01), Sarv
patent: 5813846 (1998-09-01), Newby et al.
patent: 5980243 (1999-11-01), Surbey et al.
patent: 5984665 (1999-11-01), Loftus et al.
patent: 5987875 (1999-11-01), Hilburn et al.
patent: 5993193 (1999-11-01), Loftus et al.
patent: 6007325 (1999-12-01), Loftus et al.
patent: 6056538 (2000-05-01), Büchner et al.
patent: 6332408 (2001-12-01), Howlett et al.
patent: 6347935 (2002-02-01), Schindler et al.
patent: 6383462 (2002-05-01), Lang
patent: 6616442 (2003-09-01), Venizelos et al.
patent: 1169753 (1984-06-01), None
patent: 2944153 (1981-05-01), None
patent: 3232421 (1984-03-01), None
patent: 3818265 (1989-11-01), None
patent: 0099828 (1988-06-01), None
patent: 0 347 956 (1989-12-01), None
patent: 0 374 423 (1990-06-01), None
patent: 0 408 171 (1991-01-01), None
patent: 0 507 233 (1992-10-01), None
patent: 0 620 402 (1994-10-01), None
patent: 0 674 135 (1995-09-01), None
patent: 0 751 343 (1997-01-01), None
patent: 0486169 (1998-01-01), None
patent: 1096202 (2001-02-01), None
patent: 1 211 458 (2002-06-01), None
patent: 2629900 (1988-10-01), None
patent: 374488 (1973-03-01), None
Abstract of EP 0 507 233 published on Oct. 7, 1992, entitled “Burner for Liquid Fuels”.
Straitz III, John F., et al., “Combat NOx With Better Burner Design,”Chemical Engineering,Nov. 1994, pp. EE-4-EE-8.
Vahdati, M. M., et al., “Design And Development of A Low NOx Coanda Ejector Burner,”Journal of the Institute of Energy,Mar. 2000, vol. 73, pp. 12-17.
Bussman, Wes, et al., “Low NOx Burner Technology for Ethylene Cracking Furnaces,” presented at the2001 AIChE Spring National Meeting, 13thAnnual Ethylene Producers Conference,Houston, TX, Apr. 25, 2001, pp. 1-23.
Seebold, James G., “Reduce Heater NOx in the Burner,”Hydrocarbon Processing,Nov. 1982, pp. 183-186.
“West Germany's Caloric Develops a Low-NOx Recycling Fuel Burner,”Chemical Engineering,Oct. 4, 1982, p. 17.
Chemical Engineering Progress, vol. 43, 1947, “The Design of Jet Pumps” by A. Edgar Kroll, pp. 21-24, vol. 1, No. 2.

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