Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1998051761) CRACKING FURNACE WITH RADIANT HEATING TUBES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/051761 International Application No.: PCT/US1998/009850
Publication Date: 19.11.1998 International Filing Date: 11.05.1998
Chapter 2 Demand Filed: 14.12.1998
IPC:
C10G 9/20 (2006.01) ,F28D 7/06 (2006.01) ,F28F 9/013 (2006.01)
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
9
Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
14
in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
18
Apparatus
20
Tube furnaces
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
D
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
7
Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
06
the conduits having a single U-bend
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
F
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
9
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
007
Auxiliary supports for elements
013
for tubes or tube-assemblies
Applicants:
STONE & WEBSTER ENGINEERING CORPORATION [US/US]; 245 Summer Street Boston, MA 02210-2288, US
BORSIG GMBH [DE/DE]; Egellsstrasse 21 Berlin, DE 13507, DE
Inventors:
BREWER, John, R.; US
BROWN, David, J.; US
BRUCHER, Peter, H.; DE
Agent:
COX, Charles, M.; Akin, Gump, Strass, Hauer & Feld, LLP Suite 1900 Pennzoil Place, South Tower 711 Louisiana Houston, TX 77002, US
Priority Data:
60/046,38313.05.1997US
Title (EN) CRACKING FURNACE WITH RADIANT HEATING TUBES
(FR) FOURNEAU DE CRAQUAGE COMPORTANT DES TUBES DE CHAUFFAGE PAR RAYONNEMENT
Abstract:
(EN) The present invention provides a furnace (6) and process that relied on a multiplicity of radiant heating tubes (20), each in the form of a U-shaped coil, that are mounted within a furnace firebox (10) such that an inlet leg (22) of any one of the plural tubes (20) is immediately adjacent and spaced apart from an outlet leg (26) of another one of the plural tubes (20) within the firebox (10) of a thermal cracking furnace (6). This spacial pairing of an inlet leg (22) of one tube with an outlet leg (26) of another tube of the plural radiant heating tubes (20) of the cracking furnace (6) maximizes utilization of the available radiant heat within the firebox (10) of the thermal cracking furnace (6) while reducing the likelihood of localized hot spotting that could produce coke-tar plugging of the tube (20).
(FR) La présente invention concerne un fourneau (6) et un procédé reposant sur de multiples tubes de chauffage (20) par rayonnement, chacun ayant une forme de serpentin en forme de U. Les tubes sont montés à l'intérieur d'une chambre de combustion (10) de fourneau, de sorte qu'un pied d'entrée (22) de n'importe lequel des multiples tubes (20) est immédiatement adjacent, et espacé par rapport à un pied de sortie (26) d'un autre des multiples tubes (20) situés à l'intérieur de la chambre de combustion (10) d'un fourneau (6) de craquage thermique. Cet appariement spatial du pied d'entrée (22) d'un tube avec le pied de sortie (26) d'un autre des multiples tubes (20) de chauffage par rayonnement d'un fourneau (6) de craquage, permet de maximiser l'utilisation de la chaleur de rayonnement disponible à l'intérieur de la chambre de combustion (10) du fourneau (6) de craquage thermique, et de réduire la probabilité de formation de points chauds pouvant produire une obturation du tube (20) par du goudron de coke.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)