EP1525289A1 - Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen - Google Patents
Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffenInfo
- Publication number
- EP1525289A1 EP1525289A1 EP03725176A EP03725176A EP1525289A1 EP 1525289 A1 EP1525289 A1 EP 1525289A1 EP 03725176 A EP03725176 A EP 03725176A EP 03725176 A EP03725176 A EP 03725176A EP 1525289 A1 EP1525289 A1 EP 1525289A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribs
- tube
- finned tube
- profile
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- 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
- 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
- C10G9/24—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by heating with electrical means
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/80—Additives
- C10G2300/805—Water
- C10G2300/807—Steam
Definitions
- the invention relates to a method and a finned tube for the thermal splitting of hydrocarbons in the presence of steam, in which the feed mixture is passed through externally heated tubes with helical inner fins.
- Tube furnaces have proven themselves for the high-temperature pyrolysis of hydrocarbons (petroleum derivatives), in which a hydrocarbon / water vapor mixture at temperatures above 750 ° C by rows of individual or meandering tubes (cracked tube coils) made of heat-resistant chrome-nickel steel alloys with high oxidation or Scale resistance and high carburization resistance.
- the coils consist of vertically running straight pipe sections which are connected to one another via U-shaped pipe bends or arranged parallel to one another; They are usually heated with the help of side wall and sometimes also with the help of floor burners and therefore have a so-called sunny side facing the burners and a so-called shadow side that is offset by 90 °, that is to say in the direction of the rows of pipes.
- the mean pipe wall temperatures (TMT) are sometimes above 1000 ° C.
- the service life of the cracking tubes depends very much on the creep resistance and carburization resistance as well as on the coking speed of the tube material. Decisive for the coking speed, i.e. for the growth of a layer of carbon deposits (pyrolysis coke) on the inner pipe wall, in addition to the type of hydrocarbons used, the cracking gas temperature in the area of the inner wall and the so-called cracking severity, behind which the influence of the system pressure and the residence time in the pipe system hides on the ethylene yield.
- the splitting sharpness is based on the average outlet temperature of the fission gases (e.g. 850 ° C)
- centrifugal cast pipes can only be produced with a cylindrical wall, special shaping processes are required, for example an electrolytically abrasive machining or a shaping welding process, in order to produce inner finned pipes.
- the invention is based on the problem of improving the economy of the thermal splitting of hydrocarbons in tube furnaces with externally heated tubes with helical inner fins.
- the solution to this problem consists in a method in which a swirl flow is generated in the immediate vicinity of the fins, preferably a centrifugal cast iron pipe, and with increasing radial distance from the fins, a predominantly axial flow is transferred into a core zone.
- the transition between the outer zone with the swirl flow and the core zone with the predominantly axial flow takes place gradually, for example parabolically.
- the swirl flow absorbs the vertebrae detaching at the rib flanks, so that there is no local return of the vertebrae in the manner of a self-contained circular flow into the rib valleys.
- the mean residence time is lower than in the smooth tube and moreover more homogeneous over the cross-section (see Fig. 7). This is confirmed by the higher overall speed in the profile tube with swirl (profile 3) compared to the tube with straight ribs (profile 2). This is ensured in particular when the swirl flow in the area of the fins or the fins extend at an angle of 20 ° to 40 °, for example 30 °, preferably 25 ° to 32.5 ° with respect to the tube axis.
- the heat inevitably different over the circumference of the tube between the sun and shadow side is offered balanced in the tube wall and inside the tube and the heat was quickly dissipated inwards to the core zone. This is associated with a reduction in the risk of local overheating of the process gas on the tube wall and the resulting pyrolysis coke.
- the thermal stress on the pipe material is lower due to the temperature balance between the sun and shade side, which leads to an extension of the service life.
- the temperature is also made more uniform over the pipe cross section, with the result that the olefin yield is better. The reason for this is that without the radial temperature equalization according to the invention inside the pipe inside the hot pipe wall would overcrack and in the pipe center a recombination of fission products would occur.
- the inner circumference of the profile is a maximum of 5%, for example 4% or also 3.5%, based on the circumference of the enveloping circle touching the rib valleys.
- the inner circumference can also be up to 2% smaller than the envelope circle.
- the relative profile circumference is at most 1.05 to 0.98% of the circumference of the envelope.
- the area difference of the profiled tube according to the invention, ie its developed inner surface is a maximum of + 5% to -2% or 1.05 to 0.98 times the smooth tube surface, based on a smooth tube with the enveloping circle diameter.
- the tube profile according to the invention allows a lower specific tube weight (kg / m) compared to a finned tube, in which the inner circumference of the profile is at least 10% larger than the circumference of the enveloping circle. This is shown by a comparison of two pipes with the same hydraulic diameter and accordingly the same pressure loss and the same thermal result.
- profile circumference relative profile circumference
- the feed gas heats up more quickly at a reduced tube wall temperature.
- the swirl flow according to the invention considerably reduces the laminar layer; it is also connected to a velocity vector directed towards the tube center, which reduces the residence time of crack radicals or fission products on the hot tube wall and their chemical and catalytic conversion to pyrolysis coke.
- the temperature differences between rib valleys and fins which are not insignificant in inner profile tubes with high fins, are compensated for by the swirl flow according to the invention. This increases the time interval between two necessary decoctions.
- the swirl flow according to the invention there is a not inconsiderable temperature difference between the rib tops and the bottom of the rib valleys.
- the residence time of the fission products which tend to coke is shorter in the case of cracking tubes provided with helical inner fins; In individual cases, this depends on the nature of the ribs.
- the diagram shows:
- the profile according to the invention brings about a spiral acceleration in the rib valleys (upper curve branch), which covers large areas of the pipe cross section and thus brings about a homogenization of the temperature in the pipe.
- the lower peripheral speed at the rib tops (lower curve branch) also ensures that there is no turbulence and backflow.
- FIG 3 shows three test tubes with their data in cross-section, including the profile 3 according to the invention.
- the diagrams show the temperature profile over the tube radius (radius) on the shadow and the sun side.
- a comparison of the diagrams shows the lower temperature difference between the tube wall and the center and the lower gas temperature on the tube wall in the case of the profile 3 according to the invention.
- the swirl flow according to the invention ensures that the fluctuation of the inner wall temperature over the circumference of the tube, that is, between the sun and shadow side is below 12 ° C., although the tube coils of a tube furnace, which are usually arranged in parallel rows, are heated or heated with the help of side wall burners only on opposite sides are charged with combustion gases and the pipes therefore each have a sunny side facing the burners and a shadow side offset by 90 °.
- the mean pipe wall temperature i.e. the difference in pipe wall temperature between the sunny and the shady side, leads to internal stresses and therefore determines the service life of the pipes. This results in the reduction in the mean, which can be seen from the diagram in FIG. 4 - 7 -
- a particularly favorable temperature distribution arises when the isotherms run from the inner tube wall to the core of the flow in a spiral.
- a more uniform distribution of the temperature over the cross section results in particular if the peripheral speed builds up within 2 to 3 m and then remains constant over the entire pipe length.
- the method according to the invention should be operated in such a way that the homogeneity factor of the temperature over the cross section and the homogeneity factor based on the hydraulic diameter in relation to the homogeneity factor of a smooth tube (H G0 ) over 1 lies.
- the homogeneity factors are defined as follows:
- H G0 [-] Hp 0 ⁇ T o . d x / ⁇ T ⁇ . d o
- the flow pattern of core and swirl flow according to the invention can be achieved with a finned tube in which the flank angle is in each case over the Length of a tube piece of continuous ribs, that is, the outside angle between the rib flanks and the radius of the tube is 16 ° to 25 °, preferably 19 ° to 21 °.
- a flank angle in particular in connection with a fin pitch of 20 ° to 40 °, for example 22.5 ° to 32.5 °, ensures that there is not a more or less self-contained vortex flow returning into the fin valleys behind the fin flanks results, which leads to the formation of undesirable "twisters" in the rib valleys, that is, of closed vortex braids.
- the ribs and the rib valleys located between the ribs can be mirror-symmetrical in cross section and adjoin one another or form a wavy line with the same radii of curvature in each case.
- the flank angle then results between the tangents of the two radii of curvature at the point of contact and the radius of the tube.
- the ribs are relatively flat; Rib height and flank angle are coordinated so that the hydraulic diameter of the profile from the ratio of 4 x free cross-section / profile circumference is equal to or larger than the inner circle of the profile. The hydraulic diameter is therefore in the inner third of the profile height.
- the rib height and the number of ribs increase with increasing diameter so that the swirl flow is maintained in the direction and strength required for the effect of the profile.
- the tube wall between the individual fins remains essentially unchanged, so that the rib valleys lie on a common circle that corresponds to the inner circumference of the centrifugal cast tube.
- the ratio of the quotients of the heat transfer coefficients Q R / Q 0 to the quotient of the pressure losses ⁇ P R / ⁇ Po in the water test using and observing the laws of similarity and using the Reynolds numbers mediated for a naphtha / water vapor mixture is preferably 1.4 to 1.5, where R denotes a finned tube and 0 a smooth tube.
- the superiority of the finned tube according to the invention (profile 3) compared to a smooth tube (profile 0) and a finned tube with axially parallel fins (profile 1), in which the radial distance between the rib valleys and the fin tips is 4.8 mm, illustrate the data of the following Table.
- the finned tubes all had 8 fins and the same enveloping circle.
- the hydraulic diameter is defined as follows:
- the finned tube according to the invention results in a heat transfer (Q R ) that is higher by a factor of 2.56 compared to the smooth tube with a pressure loss ( ⁇ P R ) that is only increased by a factor of 76.
- a pipe with a smooth inner wall is compared to three different profile pipes, including a pipe according to the invention with 8 fins, each with a slope of 30 °.
- the hydraulic diameter, the axial speed, the dwell time and the pressure loss are given for each cross-section.
- the starting data were the throughput quantities of a smooth pipe in operation with a 38 mm inner diameter, which is identical to the hydraulic diameter. These data were converted to warm water according to the laws of similarity (same Reynolds numbers) and used as the basis for the tests (see ratio of the heat transfer and pressure loss quotients for tests with water and the related homogeneity factor when calculating with gases).
- the directional, spiral flow transfers the heat from the pipe wall into the flow and thus distributes it more evenly than in one 12 -
- the finned tubes according to the invention can be produced, for example, from a centrifugally cast tube by rotating the ends of a tube with ribs parallel to the axis, or by deforming a centrifugally cast tube, for example by hot forging, hot drawing or cold forming, using a profile tool, for example a flying one Mandrel or a mandrel rod with an outer profile corresponding to the inner profile of the tube is generated.
- a profile tool for example a flying one Mandrel or a mandrel rod with an outer profile corresponding to the inner profile of the tube is generated.
- Cutting machines for internally profiling pipes are known in various variants, for example from German patent 195 23 280. These machines are also suitable for producing a finned tube according to the invention.
- the forming temperature should be set so that there is a partial destruction of the structural grain in the area of the inner surface and consequently later recrystallization under the influence of the operating temperature.
- the result of this is a fine-grained structure that leads to a rapid diffusion of chromium, silicon and / or aluminum through the austentic matrix to the inner surface of the tube, where it quickly builds up an oxidic protective layer.
- the ribs according to the invention can also be produced by cladding; in this case there can be no curved between the individual ribs Rib base arise, but there the original course of the inner wall of the tube is essentially preserved.
- the inner surface of the pipe according to the invention should have the lowest possible roughness; it can therefore be smoothed, for example mechanically polished or electrolytically leveled.
- Suitable pipe materials for use in ethylene plants are iron or nickel alloys with 0.1% to 0.5% carbon, 20 to 35% chromium, 20 to 70% nickel, up to 3% silicon, up to 1% niobium, to 5% tungsten and additions of hafnium, titanium, rare earths or zirconium, each up to 0.5% and up to 6% aluminum.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10012045A EP2298850A1 (de) | 2002-07-25 | 2003-05-08 | Rippenrohr zum thermischen Spalten von Kohlenwasserstoffen |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233961A DE10233961A1 (de) | 2002-07-25 | 2002-07-25 | Verfahren zum thermischen Spalten von Kohlenwasserstoffen |
DE10233961 | 2002-07-25 | ||
PCT/EP2003/004827 WO2004015029A1 (de) | 2002-07-25 | 2003-05-08 | Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10012045.0 Division-Into | 2010-09-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1525289A1 true EP1525289A1 (de) | 2005-04-27 |
EP1525289B1 EP1525289B1 (de) | 2011-09-28 |
EP1525289B9 EP1525289B9 (de) | 2012-02-29 |
Family
ID=30128404
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03725176A Expired - Lifetime EP1525289B9 (de) | 2002-07-25 | 2003-05-08 | Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen |
EP10012045A Withdrawn EP2298850A1 (de) | 2002-07-25 | 2003-05-08 | Rippenrohr zum thermischen Spalten von Kohlenwasserstoffen |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10012045A Withdrawn EP2298850A1 (de) | 2002-07-25 | 2003-05-08 | Rippenrohr zum thermischen Spalten von Kohlenwasserstoffen |
Country Status (22)
Country | Link |
---|---|
EP (2) | EP1525289B9 (de) |
JP (2) | JP4536512B2 (de) |
KR (1) | KR101023668B1 (de) |
CN (1) | CN100523133C (de) |
AT (1) | ATE526385T1 (de) |
AU (1) | AU2003227737A1 (de) |
BR (1) | BR0312919B1 (de) |
CA (1) | CA2493463C (de) |
DE (1) | DE10233961A1 (de) |
EA (1) | EA010936B1 (de) |
ES (1) | ES2374568T3 (de) |
HR (1) | HRP20050072A2 (de) |
IL (1) | IL166229A (de) |
MA (1) | MA27325A1 (de) |
MX (1) | MXPA05001070A (de) |
NO (1) | NO337398B1 (de) |
NZ (1) | NZ537827A (de) |
PL (1) | PL204769B1 (de) |
PT (1) | PT1525289E (de) |
RS (1) | RS20050060A (de) |
UA (1) | UA85044C2 (de) |
WO (1) | WO2004015029A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016012907A1 (de) | 2016-10-26 | 2018-04-26 | Schmidt + Clemens Gmbh + Co. Kg | Tieflochbohrverfahren sowie Werkzeug für eine Tieflochbohrmaschine und Tieflochbohrmaschine |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2037202T3 (pl) | 2006-07-05 | 2019-03-29 | Nippon Steel & Sumitomo Metal Corporation | Metalowa rura do reakcji krakingu termicznego |
EP2408551A1 (de) * | 2009-03-17 | 2012-01-25 | Total Petrochemicals Research Feluy | Verfahren zum abkühlen des abgases eines ofens |
EP2813286A1 (de) * | 2013-06-11 | 2014-12-17 | Evonik Industries AG | Reaktionsrohr und Verfahren zur Herstellung von Cyanwasserstoff |
FR3033266B1 (fr) * | 2015-03-05 | 2017-03-03 | Ifp Energies Now | Ensemble de collecte d'un fluide gazeux pour reacteur radial |
WO2017007649A1 (en) | 2015-07-09 | 2017-01-12 | Sabic Global Technologies B.V. | Minimizing coke formation in a hydrocarbon cracker system |
JP6107905B2 (ja) * | 2015-09-09 | 2017-04-05 | 株式会社富士通ゼネラル | 熱交換器 |
CN109072090B (zh) * | 2016-04-12 | 2021-03-16 | 巴斯夫安特卫普股份有限公司 | 用于裂解炉的反应器 |
DE102017003409B4 (de) | 2017-04-07 | 2023-08-10 | Schmidt + Clemens Gmbh + Co. Kg | Rohr und Vorrichtung zum thermischen Spalten von Kohlenwasserstoffen |
EP3384981B1 (de) * | 2017-04-07 | 2024-03-06 | Schmidt + Clemens GmbH + Co. KG | Rohr und vorrichtung zum thermischen spalten von kohlenwasserstoffen |
WO2018185167A1 (de) * | 2017-04-07 | 2018-10-11 | Schmidt + Clemens Gmbh + Co. Kg | Rohr und vorrichtung zum thermischen spalten von kohlenwasserstoffen |
CA3062425C (en) * | 2017-05-05 | 2022-05-31 | Exxonmobil Chemical Patents Inc. | Heat transfer tube for hydrocarbon processing |
CA3079647A1 (en) * | 2017-10-27 | 2019-05-02 | China Petroleum & Chemical Corporation | Heat transfer enhancement pipe as well as cracking furnace and atmospheric and vacuum heating furnace including the same |
GB2590363B (en) * | 2019-12-09 | 2023-06-28 | Paralloy Ltd | Internally profiled tubes |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB969796A (en) | 1961-03-01 | 1964-09-16 | Exxon Research Engineering Co | Apparatus for heating fluids and tubes for disposal therein |
JPS58132081A (ja) * | 1982-01-08 | 1983-08-06 | Idemitsu Petrochem Co Ltd | 炭化水素の熱分解方法 |
DE3716665A1 (de) * | 1987-05-19 | 1988-12-08 | Vdm Nickel Tech | Korrosionsbestaendige legierung |
JP3001181B2 (ja) * | 1994-07-11 | 2000-01-24 | 株式会社クボタ | エチレン製造用反応管 |
DE4427859A1 (de) * | 1994-08-05 | 1995-10-26 | Siemens Ag | Rohr mit auf seiner Innenseite ein mehrgängiges Gewinde bildenden Rippen sowie Dampferzeuger zu seiner Verwendung |
DE19523280C2 (de) * | 1995-06-27 | 2002-12-05 | Gfm Gmbh Steyr | Schmiedemaschine zum Innenprofilieren von rohrförmigen Werkstücken |
DE19629977C2 (de) * | 1996-07-25 | 2002-09-19 | Schmidt & Clemens Gmbh & Co Ed | Werkstück aus einer austenitischen Nickel-Chrom-Stahllegierung |
DE69802404T2 (de) * | 1997-06-10 | 2002-07-18 | Exxon Chemical Patents, Inc. | Pyrolyse-ofen mit interner u-förmiger gerippter strahlender spule |
JPH11199876A (ja) * | 1998-01-16 | 1999-07-27 | Kubota Corp | コーキング減少性能を有するエチレン製造用熱分解管 |
-
2002
- 2002-07-25 DE DE10233961A patent/DE10233961A1/de not_active Withdrawn
-
2003
- 2003-05-08 AT AT03725176T patent/ATE526385T1/de active
- 2003-05-08 PL PL373967A patent/PL204769B1/pl unknown
- 2003-05-08 CN CNB038178850A patent/CN100523133C/zh not_active Expired - Lifetime
- 2003-05-08 RS YUP-2005/0060A patent/RS20050060A/sr unknown
- 2003-05-08 EA EA200500258A patent/EA010936B1/ru not_active IP Right Cessation
- 2003-05-08 CA CA2493463A patent/CA2493463C/en not_active Expired - Lifetime
- 2003-05-08 ES ES03725176T patent/ES2374568T3/es not_active Expired - Lifetime
- 2003-05-08 MX MXPA05001070A patent/MXPA05001070A/es active IP Right Grant
- 2003-05-08 WO PCT/EP2003/004827 patent/WO2004015029A1/de active Application Filing
- 2003-05-08 KR KR1020057001384A patent/KR101023668B1/ko active IP Right Grant
- 2003-05-08 EP EP03725176A patent/EP1525289B9/de not_active Expired - Lifetime
- 2003-05-08 UA UAA200501718A patent/UA85044C2/ru unknown
- 2003-05-08 PT PT03725176T patent/PT1525289E/pt unknown
- 2003-05-08 NZ NZ537827A patent/NZ537827A/en not_active IP Right Cessation
- 2003-05-08 AU AU2003227737A patent/AU2003227737A1/en not_active Abandoned
- 2003-05-08 JP JP2004526658A patent/JP4536512B2/ja not_active Expired - Lifetime
- 2003-05-08 EP EP10012045A patent/EP2298850A1/de not_active Withdrawn
- 2003-05-08 BR BRPI0312919-5A patent/BR0312919B1/pt active IP Right Grant
-
2005
- 2005-01-11 IL IL166229A patent/IL166229A/en active IP Right Grant
- 2005-01-18 MA MA28048A patent/MA27325A1/fr unknown
- 2005-01-24 HR HR20050072A patent/HRP20050072A2/hr not_active Application Discontinuation
- 2005-01-28 NO NO20050493A patent/NO337398B1/no not_active IP Right Cessation
-
2010
- 2010-02-18 JP JP2010034129A patent/JP2010150553A/ja not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2004015029A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016012907A1 (de) | 2016-10-26 | 2018-04-26 | Schmidt + Clemens Gmbh + Co. Kg | Tieflochbohrverfahren sowie Werkzeug für eine Tieflochbohrmaschine und Tieflochbohrmaschine |
WO2018078030A1 (de) | 2016-10-26 | 2018-05-03 | Schmidt + Clemens Gmbh + Co. Kg | Tieflochbohrverfahren, werkzeug für eine tieflochbohrmaschine, tieflochbohrmaschine, und schleudergussrohr |
Also Published As
Publication number | Publication date |
---|---|
PT1525289E (pt) | 2012-01-04 |
BR0312919B1 (pt) | 2014-06-24 |
RS20050060A (en) | 2007-09-21 |
PL373967A1 (en) | 2005-09-19 |
DE10233961A1 (de) | 2004-02-12 |
MXPA05001070A (es) | 2005-10-05 |
EP2298850A1 (de) | 2011-03-23 |
NZ537827A (en) | 2007-04-27 |
IL166229A (en) | 2008-11-26 |
NO337398B1 (no) | 2016-04-04 |
KR20050052457A (ko) | 2005-06-02 |
MA27325A1 (fr) | 2005-05-02 |
JP2010150553A (ja) | 2010-07-08 |
JP4536512B2 (ja) | 2010-09-01 |
ATE526385T1 (de) | 2011-10-15 |
WO2004015029A1 (de) | 2004-02-19 |
BR0312919A (pt) | 2005-07-05 |
JP2005533917A (ja) | 2005-11-10 |
EA200500258A1 (ru) | 2005-08-25 |
PL204769B1 (pl) | 2010-02-26 |
AU2003227737A1 (en) | 2004-02-25 |
KR101023668B1 (ko) | 2011-03-25 |
UA85044C2 (ru) | 2008-12-25 |
ES2374568T3 (es) | 2012-02-17 |
NO20050493L (no) | 2005-03-17 |
CA2493463A1 (en) | 2004-02-19 |
EA010936B1 (ru) | 2008-12-30 |
IL166229A0 (en) | 2006-01-15 |
EP1525289B9 (de) | 2012-02-29 |
EP1525289B1 (de) | 2011-09-28 |
HRP20050072A2 (en) | 2005-08-31 |
CA2493463C (en) | 2013-01-15 |
CN1671824A (zh) | 2005-09-21 |
CN100523133C (zh) | 2009-08-05 |
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