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1. (WO2017171942) BURNER, FURNACE, AND STEAM CRACKING PROCESSES USING THE SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/171942 International Application No.: PCT/US2016/066463
Publication Date: 05.10.2017 International Filing Date: 14.12.2016
IPC:
F23C 9/00 (2006.01) ,F23D 14/08 (2006.01) ,F23D 14/70 (2006.01) ,F23M 5/02 (2006.01) ,F23C 5/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
C
METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
9
Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
D
BURNERS
14
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
02
Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
04
induction type, e.g. Bunsen burner
08
with axial outlets at the burner head
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
D
BURNERS
14
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
46
Details
70
Baffles or like flow-disturbing devices
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
M
CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
5
Casings; Linings; Walls
02
characterised by the shape of the bricks or blocks used
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
C
METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
5
Combustion apparatus characterised by the arrangement or mounting of burners
Applicants: EXXONMOBIL CHEMICAL PATENT INC.[US/US]; 5200 Bayway Drive Baytown, TX 77520, US
Inventors: STEPHENS, George; US
SPICER, David, B.; US
Agent: HINDMARSH, Brandon, J.; US
BAEHL, Stephen; US
BELL, Catherine, L.; US
CHEN, Siwen; US
ARECHEDERRA, Leandro; US
Priority Data:
16170266.719.05.2016EP
62/316,24631.03.2016US
Title (EN) BURNER, FURNACE, AND STEAM CRACKING PROCESSES USING THE SAME
(FR) BRÛLEUR, FOUR ET PROCÉDÉS DE VAPOCRAQUAGE UTILISANT LEDIT FOUR
Abstract:
(EN) A burner sub-system, a furnace comprising the same, a fuel combustion process and steam cracking process carried out in the furnace. The burner sub-system comprises a barrier wall segment (60) between the burner tip (20) and the flue-gas recirculation ("FGR") duct (40), effectively blocking direct gas flow between the burner tip and the FGR duct opening, but without encircling the whole burner tip. The presence of the partial barrier wall has the advantage of preventing the temperature inside the FGR duct from becoming too high, while achieving low NOx emissions from the combustion process without overheating the burner tip because of reduced amount of heat reflection to the burner tip compared to an annular barrier wall. The invention is particularly useful in furnaces where hydrogen-rich fuel gas is combusted.
(FR) L'invention concerne un sous-système de brûleur, un four comprenant ledit sous-système, un procédé de combustion de combustibles et un procédé de vapocraquage effectué dans le four. Le sous-système de brûleur comprend un segment de paroi de barrière (60) entre le bec (20) du brûleur et le conduit (40) de recirculation de gaz de combustion ("FGR" selon l'abréviation anglo-saxonne), destiné à bloquer efficacement l'écoulement de gaz direct entre le bec du brûleur et l'ouverture du conduit de FGR, mais sans encercler la totalité du bec du brûleur. La présence de la paroi de barrière partielle offre l'avantage d'empêcher l'augmentation excessive de la température à l'intérieur du conduit de FGR, permettant en même temps l'obtention de faibles émissions de NOx en provenance du procédé de combustion sans surchauffer le bec du brûleur, en raison d'une quantité réduite de réflexion de chaleur vers le bec du brûleur par rapport à une paroi de barrière annulaire. L'invention est particulièrement utile dans des fours destinés à brûler du gaz combustible riche en hydrogène.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)