SE524010C2 - Radiation tube in cracker oven - Google Patents
Radiation tube in cracker ovenInfo
- Publication number
- SE524010C2 SE524010C2 SE0301500A SE0301500A SE524010C2 SE 524010 C2 SE524010 C2 SE 524010C2 SE 0301500 A SE0301500 A SE 0301500A SE 0301500 A SE0301500 A SE 0301500A SE 524010 C2 SE524010 C2 SE 524010C2
- Authority
- SE
- Sweden
- Prior art keywords
- tube
- pipe
- hydrocarbons
- radiation
- temperature
- Prior art date
Links
- 230000005855 radiation Effects 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 17
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 9
- 238000005336 cracking Methods 0.000 claims abstract description 8
- 238000005275 alloying Methods 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005977 Ethylene Substances 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 239000001301 oxygen Substances 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—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
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/18—Apparatus
- C10G9/20—Tube furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Combustion Of Fluid Fuel (AREA)
- Gas Burners (AREA)
Abstract
Description
.I. 25 u. _ 30 2 Ovan angavs att kryphållfastheten ökades medelst ett material enligt patentet 467 414. Emellertid har ytterligare ökade krav på kryphållfasthet, duktilitet, liksom ökade krav på nämnda rörs livslängd. Det skulle även vara önskvärt att kunna tillverka längre rör som motstår den höga temperaturen under längre tid än kända rör. .IN. It was stated above that the creep strength was increased by means of a material according to the patent 467 414. However, there are further increased requirements for creep strength, ductility, as well as increased requirements for the life of said pipe. It would also be desirable to be able to manufacture longer pipes that withstand the high temperature for longer than known pipes.
Föreliggande uppfinning avser ett strålningsrör som uppfyller dessa krav.The present invention relates to a radiation tube which meets these requirements.
Föreliggande uppfinning hänför sig således till ett strålningsrör i en krackerugn, där kolväten krackas till eten i ett rör genom vilket kolväten strömmar, vilket rör är uppvärmt utifrån till en temperatur vid vilken krackning av kolväten inträffar, och utmärkes av, att röret är utfört i ett FeCrAl - material innehållande förutom Fe 10 - 25 vikts% Cr, 1 - 10 vikts% Al och 1,5 - 5 vikts% Mo samt en mindre mängd legeringsämnen.The present invention thus relates to a radiant tube in a cracking furnace, where hydrocarbons are cracked to ethylene in a tube through which hydrocarbons flow, which tube is heated from the outside to a temperature at which cracking of hydrocarbons occurs, and is characterized in that the tube is made in a FeCrAl - material containing in addition to Fe 10 - 25 wt% Cr, 1 - 10 wt% Al and 1.5 - 5 wt% Mo and a minor amount of alloying elements.
Nedan beskrives uppfinningen närmare i samband med ett utföringsexempel av uppfinningen.The invention is described in more detail below in connection with an exemplary embodiment of the invention.
Föreliggande strålningsrör förefinns i en krackerugn, där kolväten krackas till eten i ett rör genom vilket kolväten strömmar. Röret är uppvärmt utifrån till en temperatur vid vilken krackning inträffar. Typiskt är rörets temperatur vid inloppsänden för gasen 900 °C och vid utloppsänden 1125 °C.The present radiation tube is present in a cracking furnace, where hydrocarbons are cracked to ethylene in a tube through which hydrocarbons flow. The tube is heated from the outside to a temperature at which cracking occurs. Typically, the temperature of the pipe at the inlet end of the gas is 900 ° C and at the outlet end 1125 ° C.
Enligt uppfinningen är röret utfört i ett FeCrAl - material innehållande förutom Fe 10 - 25 vikts% Cr, 1 - 10 vikts% Al och 1,5 - 5 vikts% Mo samt en mindre mängd legeringsämnen.According to the invention, the tube is made of a FeCrAl material containing in addition to Fe 10 - 25 wt% Cr, 1 - 10 wt% Al and 1.5 - 5 wt% Mo and a small amount of alloying elements.
Det är föredraget att materialet innehåller mindre fraktioner av ett eller flera av legeringsämnena hafnium, zirkonium, yttrium, kväve, kol och syre.It is preferred that the material contain smaller fractions of one or more of the alloying elements hafnium, zirconium, yttrium, nitrogen, carbon and oxygen.
Enligt ett mycket föredraget utförande innehåller materialet 2 - 3,5 vikts% mo- lybden. Anledningen till att molybdenhalten inte skall vara för hög, men ändå ge hållfasthetsmässiga fördelarjämfört med materialet enligt det nämnda svenska spann 10 75 20 25 I - u . an 524 010 ø . a - . . , , , , ' _. ~ a patentet 467 414, är att vid för hög molybdenhalt bildas en flyktig molybdenoxid MoO3 som förgasas och avgår. Därigenom minskas molybdeninnehållet med en sänkt hållfasthet som följd.According to a very preferred embodiment, the material contains 2 - 3.5% by weight of molybdenum. The reason why the molybdenum content should not be too high, but still give strength-advantageous advantages compared with the material according to the mentioned Swedish range 10 75 20 25 I - u. an 524 010 ø. a -. . ,,,, '_. patent 467,414, is that at too high a molybdenum content a volatile molybdenum oxide MoO3 is formed which is gasified and escapes. Thereby, the molybdenum content is reduced with a reduced strength as a result.
Enligt ett föredraget utförande är röret utfört i ett material med en kryphållfasthet överstigande att tiden till brott av röret vid en temperatur av 1100 °C och en last av 2,2 MPa överstiger 100.000 timmar. Detta motsvarar väsentligen en dubbelt så hög kryphållfasthet jämfört med rör utfört i det i patentet 467 414 angivna materialet.According to a preferred embodiment, the pipe is made of a material with a creep strength exceeding that the time to rupture of the pipe at a temperature of 1100 ° C and a load of 2.2 MPa exceeds 100,000 hours. This corresponds essentially to twice the creep strength compared to pipes made of the material specified in patent 467,414.
Den högre kryphållfastheten medför en motsvarande avsevärt ökning av rörets livslängd.The higher creep strength results in a corresponding significant increase in the service life of the pipe.
Denna högre hållfasthet innebär att röret kan utföras i en längre längd än konven- tionella krackerrör. Ett krackerrör kan typiskt vara 10 - 17 meter långt. Ett sådant rör består av två eller flera i längsled sammansvetsade rör.This higher strength means that the pipe can be made in a longer length than conventional cracker pipes. A cracker pipe can typically be 10 - 17 meters long. Such a pipe consists of two or two longitudinally welded pipes.
Enligt en föredragen utföringsform är röret format i ett stycke med en längd översti- gande 10 meter.According to a preferred embodiment, the tube is formed in one piece with a length exceeding 10 meters.
Det är således uppenbart att föreliggande uppfinning avser ett strålningsrör som uppfyller de inledningsvis nämnda kraven.It is thus obvious that the present invention relates to a radiation tube which meets the requirements mentioned in the introduction.
Föreliggande uppfinning kan varieras med avseende på materialkompositionen, framför allt avseende legeringsämnen som har låg halt i materialet.The present invention can be varied with respect to the material composition, especially with respect to alloying elements which have a low content in the material.
Föreliggande uppfinning skall därför inte anses begränsad till ovan angivna utfö- ringsformer utan kan varieras inom dess av bifogade patentkrav angivna ram.The present invention should therefore not be construed as limited to the embodiments set forth above, but may be varied within its scope as set forth in the appended claims.
Claims (4)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0301500A SE524010C2 (en) | 2003-05-20 | 2003-05-20 | Radiation tube in cracker oven |
| CNB2004800137969A CN100365151C (en) | 2003-05-20 | 2004-05-14 | Radiant tube for cracking furnace |
| PCT/SE2004/000757 WO2004104257A1 (en) | 2003-05-20 | 2004-05-14 | Radiant tube in cracking furnaces |
| JP2006532193A JP2007506866A (en) | 2003-05-20 | 2004-05-14 | Radiant tube for cracking furnace |
| EP04733228A EP1627093A1 (en) | 2003-05-20 | 2004-05-14 | Radiant tube in cracking furnaces |
| US10/846,593 US20050019202A1 (en) | 2003-05-20 | 2004-05-17 | Radiant tube in cracking furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0301500A SE524010C2 (en) | 2003-05-20 | 2003-05-20 | Radiation tube in cracker oven |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0301500D0 SE0301500D0 (en) | 2003-05-20 |
| SE0301500L SE0301500L (en) | 2004-06-15 |
| SE524010C2 true SE524010C2 (en) | 2004-06-15 |
Family
ID=20291377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0301500A SE524010C2 (en) | 2003-05-20 | 2003-05-20 | Radiation tube in cracker oven |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050019202A1 (en) |
| EP (1) | EP1627093A1 (en) |
| JP (1) | JP2007506866A (en) |
| CN (1) | CN100365151C (en) |
| SE (1) | SE524010C2 (en) |
| WO (1) | WO2004104257A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1957693A4 (en) * | 2005-12-02 | 2011-08-03 | Sandvik Intellectual Property | A tube and use of said tube |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20040040A1 (en) * | 2004-01-15 | 2004-04-15 | Maurizio Spoto | INCREASED HEAT EXCHANGER ELEMENT |
| SE528189C2 (en) * | 2004-12-21 | 2006-09-19 | Sandvik Intellectual Property | Method and pipe joint for joining components comprising or made of a material which is difficult to weld |
| EP2031080B1 (en) | 2007-08-30 | 2012-06-27 | Alstom Technology Ltd | High temperature alloy |
| US8597438B2 (en) | 2007-10-05 | 2013-12-03 | Sandvik Intellectual Property Ab | Use and method of producing a dispersion strengthened steel as material in a roller for a roller hearth furnace |
| CN102230132B (en) * | 2011-07-04 | 2012-11-21 | 大连理工大学 | Fe-Cr-Mo-Al-Cu corrosion-resistant high temperature alloy |
| CN210287474U (en) * | 2019-06-01 | 2020-04-10 | 上海颐柏科技股份有限公司 | Methanol and propane cracking device based on radiant tube |
| CN117144264B (en) * | 2023-10-31 | 2024-02-02 | 上海核工程研究设计院股份有限公司 | Ferrite heat-resistant alloy for light water reactor fuel assembly, manufacturing method and application |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT131135B (en) * | 1930-08-27 | 1933-01-10 | Ver Stahlwerke Ag | Cracking device. |
| US4498928A (en) * | 1984-02-06 | 1985-02-12 | The United States Of America As Represented By The Secretary Of Interior | Ductile duplex iron-based alloy containing aluminum |
| SE469754B (en) * | 1990-05-14 | 1993-09-06 | Kanthal Ab | OVEN BEFORE CRACKING THE PULP |
| JPH04354850A (en) * | 1991-05-29 | 1992-12-09 | Nisshin Steel Co Ltd | High al-containing ferritic stainless steel excellent in high temperature oxidation resistance |
| JPH0941096A (en) * | 1995-08-04 | 1997-02-10 | Mitsubishi Heavy Ind Ltd | Turbine blade material |
| US6296953B1 (en) * | 1997-08-12 | 2001-10-02 | Sandvik Ab | Steel alloy for compound tubes |
| TW548334B (en) * | 1997-08-20 | 2003-08-21 | Jgc Corp | Heating furnace and method of manufacturing the same |
| JPH11209850A (en) * | 1998-01-23 | 1999-08-03 | Jgc Corp | Heating furnace tube, and use of heating furnace tube |
| JP4281881B2 (en) * | 1997-08-20 | 2009-06-17 | 日揮株式会社 | Heating furnace tube and manufacturing method of heating furnace tube |
| SE513989C2 (en) * | 2000-01-01 | 2000-12-11 | Sandvik Ab | Process for manufacturing a FeCrAl material and such a mortar |
-
2003
- 2003-05-20 SE SE0301500A patent/SE524010C2/en not_active IP Right Cessation
-
2004
- 2004-05-14 JP JP2006532193A patent/JP2007506866A/en active Pending
- 2004-05-14 WO PCT/SE2004/000757 patent/WO2004104257A1/en not_active Ceased
- 2004-05-14 EP EP04733228A patent/EP1627093A1/en not_active Withdrawn
- 2004-05-14 CN CNB2004800137969A patent/CN100365151C/en not_active Expired - Fee Related
- 2004-05-17 US US10/846,593 patent/US20050019202A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1957693A4 (en) * | 2005-12-02 | 2011-08-03 | Sandvik Intellectual Property | A tube and use of said tube |
| US8206658B2 (en) | 2005-12-02 | 2012-06-26 | Sandvik Intellectual Property Ab | Tube and use of said tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1802447A (en) | 2006-07-12 |
| US20050019202A1 (en) | 2005-01-27 |
| SE0301500L (en) | 2004-06-15 |
| WO2004104257A1 (en) | 2004-12-02 |
| EP1627093A1 (en) | 2006-02-22 |
| SE0301500D0 (en) | 2003-05-20 |
| JP2007506866A (en) | 2007-03-22 |
| CN100365151C (en) | 2008-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |