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1. WO2019055060 - ALUMINUM OXIDE FORMING HEAT TRANSFER TUBE FOR THERMAL CRACKING

Publication Number WO/2019/055060
Publication Date 21.03.2019
International Application No. PCT/US2018/000360
International Filing Date 20.08.2018
IPC
C10G 9/20 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING 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
9Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
14in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
18Apparatus
20Tube furnaces
C10G 9/36 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING 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
9Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
34by direct contact with inert preheated fluids, e.g. with molten metals or salts
36with heated gases or vapours
B22D 13/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13Centrifugal casting; Casting by using centrifugal force
C22C 19/05 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
C23C 6/00 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
6Coating by casting molten material on the substrate
C23C 30/00 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
30Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
CPC
B01J 19/002
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
0006Controlling or regulating processes
002Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
B01J 19/0026
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
0006Controlling or regulating processes
002Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
0026Avoiding carbon deposits
B01J 19/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
02Apparatus characterised by being constructed of material selected for its chemically-resistant properties
B22D 13/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13Centrifugal casting; Casting by using centrifugal force
B22D 13/02
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13Centrifugal casting; Casting by using centrifugal force
02of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
C10G 9/203
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
9Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
14in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
18Apparatus
20Tube furnaces
203chemical composition of the tubes
Applicants
  • EXXONMOBIL CHEMICAL PATENTS INC. [US]/[US]
Inventors
  • CHUN, ChangMin
  • PERDOMO, Jorge, J.
Agents
  • HUGHES, Gerard, J.
  • CHEN, Siwen
  • FOSTER, Shawn, H.
  • FAULKNER, Kevin, M.
  • BELL, Catherine, L.
Priority Data
62/557,51612.09.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ALUMINUM OXIDE FORMING HEAT TRANSFER TUBE FOR THERMAL CRACKING
(FR) TUBE DE TRANSFERT DE CHALEUR POUR CRAQUAGE THERMIQUE FORMANT UN OXYDE D'ALUMINIUM
Abstract
(EN)
This application relates to a heat transfer tube, its method of manufacture and its use for thermal cracking hydrocarbon feeds, such as thermal cracking in furnaces. The heat transfer tube comprises a chromium and aluminum carburization-resistant alloy capable of generating a typically continuous aluminum oxide scale under thermal cracking conditions that reduces coking and thereby enhances heat transfer. The carburization-resistant alloy comprises 25.1 to 55.0 wt. % nickel; 18.1 to 23.9 wt. % chromium; 4.1 to 7.0 wt. % aluminum; and iron. Additionally, the carburization-resistant alloy has at least one strengthening mechanism to provide desirable mechanical properties. The carburization-resistant alloy composition is also resistant to the formation of cracks during centrifugal casting.
(FR)
Cette demande concerne un tube de transfert de chaleur, son procédé de fabrication et son utilisation pour le craquage thermique de charges d'hydrocarbures, tel que le craquage thermique dans des fours. Le tube de transfert de chaleur comprend un alliage de chrome et d'aluminium résistant à la carburation, capable de générer un dépôt d'oxyde d'aluminium typiquement en continu dans des conditions de craquage thermique qui réduit la cokéfaction et améliore ainsi le transfert de chaleur. L'alliage résistant à la carburation comprend de 25,1 à 55,0 % en poids de nickel ; de 18,1 à 23,9 % en poids de chrome ; de 4,1 à 7,0 % en poids d'aluminium ; et du fer. De plus, l'alliage résistant à la carburation selon l'invention comporte au moins un mécanisme de renfort qui lui confère les propriétés mécaniques souhaitables. La composition d'alliage résistant à la carburation résiste également à la formation de fissures lors des coulées centrifuges.
Also published as
Latest bibliographic data on file with the International Bureau