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1. WO2007087042 - DUAL FUEL GAS-LIQUID BURNER

Publication Number WO/2007/087042
Publication Date 02.08.2007
International Application No. PCT/US2006/047797
International Filing Date 14.12.2006
IPC
F23D 17/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
17Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
F23C 9/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
9Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
08for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23D 11/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
11Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
10the spraying being induced by a gaseous medium, e.g. water vapour
F23C 6/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
6Combustion apparatus characterised by the combination of two or more combustion chambers
04in series connection
F23D 11/44 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
11Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
36Details
44Preheating devices; Vaporising devices
CPC
F23C 6/047
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  ; A CARRIER GAS OR; AIR 
6Combustion apparatus characterised by the combination of two or more combustion chambers ; or combustion zones, e.g. for staged combustion
04in series connection
045with staged combustion in a single enclosure
047with fuel supply in stages
F23C 9/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  ; A CARRIER GAS OR; AIR 
9Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
08for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23D 11/102
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
11Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
10the spraying being induced by a gaseous medium, e.g. water vapour
101medium and fuel meeting before the burner outlet
102in an internal mixing chamber
F23D 11/446
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
11Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
36Details ; , e.g. burner cooling means, noise reduction means
44Preheating devices; Vaporising devices
441Vaporizing devices incorporated with burners
446heated by an auxiliary flame
F23D 17/002
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
DBURNERS
17Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
002gaseous or liquid fuel
Applicants
  • EXXONMOBIL CHEMICAL PATENTS INC. [US]/[US] (AllExceptUS)
  • STEPHENS, George [US]/[US] (UsOnly)
  • SPICER, David, B. [AU]/[US] (UsOnly)
  • KRAUS, Kurt, E. [US]/[US] (UsOnly)
Inventors
  • STEPHENS, George
  • SPICER, David, B.
  • KRAUS, Kurt, E.
Agents
  • BELL, Catherine, L.
Priority Data
11/338,31224.01.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DUAL FUEL GAS-LIQUID BURNER
(FR) BRÛLEUR À DOUBLE COMBUSTIBLE (GAZEUX-LIQUIDE)
Abstract
(EN)
A burner for use in furnaces such as those employed in steam cracking. The burner includes a primary air chamber for supplying a first portion of air, a burner tube having an upstream end and a downstream end, a burner tip having an outer diameter, the burner tip mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip producing a gaseous fuel flame, at least one air port in fluid communication with a secondary air chamber for supplying a second portion of air, the at least one air port radially positioned beyond the outer diameter of the burner tip and at least one non-gaseous fuel gun for supplying atomized non-gaseous fuel, the at least one non-gaseous fuel gun having at least one fuel discharge orifice, the at least one non- gaseous fuel gun positioned within the at least one air port.
(FR)
Brûleur destiné à des chaudières telles que celle utilisées pour le vapocraquage. Ce brûleur comprend une chambre d'air primaire pour la fourniture d'un premier volume d'air, un tube de brûleur avec extrémité amont et extrémité aval, un bec de brûleur monté sur l'extrémité aval du tube de brûleur contre une première ouverture débouchant dans la chaudière de sorte que la combustion du combustible a lieu en aval du bec de brûleur produisant une flamme à partir du combustible gazeux, au moins un passage d'air en communication fluidique avec une chambre d'air secondaire fournissant un second volume d'air, ce passage d'air étant positionné radialement au delà du diamètre extérieur du bec de brûleur; et au moins un injecteur de combustible non gazeux qui assure l'alimentation en combustible non gazeux atomisé, cet injecteur présentant au moins un orifice calibré de décharge et étant positionné à l'intérieur du passage d'air.
Also published as
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