EP1525289B9 - Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen - Google Patents

Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen Download PDF

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Publication number
EP1525289B9
EP1525289B9 EP03725176A EP03725176A EP1525289B9 EP 1525289 B9 EP1525289 B9 EP 1525289B9 EP 03725176 A EP03725176 A EP 03725176A EP 03725176 A EP03725176 A EP 03725176A EP 1525289 B9 EP1525289 B9 EP 1525289B9
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EP
European Patent Office
Prior art keywords
finned tube
tube according
profile
fin
tube
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.)
Expired - Lifetime
Application number
EP03725176A
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German (de)
English (en)
French (fr)
Other versions
EP1525289A1 (de
EP1525289B1 (de
Inventor
Peter WÖLPERT
Benno Ganser
Dietlinde Jakobi
Rolf Kirchheiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schmidt and Clemens GmbH and Co KG
Original Assignee
Schmidt and Clemens GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schmidt and Clemens GmbH and Co KG filed Critical Schmidt and Clemens GmbH and Co KG
Priority to EP10012045A priority Critical patent/EP2298850A1/de
Publication of EP1525289A1 publication Critical patent/EP1525289A1/de
Application granted granted Critical
Publication of EP1525289B1 publication Critical patent/EP1525289B1/de
Publication of EP1525289B9 publication Critical patent/EP1525289B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 finned tube for the thermal cracking of hydrocarbons in the presence of steam, in which the feed mixture is passed through externally heated tubes with helical inner fins.
  • tube ovens For the high-temperature pyrolysis of hydrocarbons (petroleum derivatives), tube ovens have proven in which a hydrocarbon / water vapor mixture at temperatures above 750 ° C by rows of single or meandering arranged pipes (cracking tubes) made of heat-resistant chromium-nickel steel alloys with high oxidation or Scaling resistance and high carburization resistance is performed.
  • the coils are made of vertically extending straight pipe sections, which are connected to each other via U-shaped pipe bend or arranged parallel to each other; they are usually heated with the help of sidewall and partly with the help of floor burners and therefore have a burner facing so-called sun side and the opposite by 90 ° offset, that is in the direction of the rows of tubes extending so-called shadow side.
  • the mean tube wall temperatures (TMT) are sometimes over 1000 ° C.
  • the lifetime of the cracking tubes depends very much on the creep resistance and the carburization resistance as well as on the coking rate of the pipe material.
  • Decisive for the rate of coking, that is for the growth of a layer of carbon deposits (pyrolysis) on the pipe inner wall are, in addition to the type of hydrocarbons used, the gap gas temperature in the inner wall and the so-called CrackMrfe, behind the influence of the system pressure and the residence time in the pipe system hides on the ⁇ thylenausbeute.
  • the gap sharpness is set on the basis of the mean outlet temperature of the cracked gases (eg 850 ° C).
  • the chromium-nickel steel alloys used as pipe material with 0.4% carbon over 25% chromium and over 20% nickel, for example 35% chromium, 45% nickel and optionally 1% niobium have a high carburization resistance, the carbon diffuses Defects of the oxide layer in the pipe wall and leads there to a considerable carburizing, which can go up to carbon contents of 1% to 3% in wall depths of 0.5 to 3 mm. Associated with this is a significant embrittlement of the pipe material with the Danger of cracking at, thermal cycling especially when starting and stopping the furnace.
  • centrifugally cast tubes can only be produced with a cylindrical wall, special shaping processes are required, for example an electrolytically removing machining or a shaping welding process, in order to produce internal finned tubes.
  • the object of the invention is to improve the cost-effectiveness of the thermal cracking of hydrocarbons in tubular ovens with externally heated tubes with helical internal ribs.
  • the fin tube according to the invention takes a swirl flow at the rib edges detaching vortex, so that there is no local feedback of the vortex in the manner of a self-contained circular flow in the Ripentäler.
  • the mean residence time is lower than in the smooth tube and also more homogeneous over the cross section (see. Fig. 7 ). This is confirmed by the higher total speed in the profile tube with swirl (profile 3) compared to the tube with straight ribs (profile 2). This is ensured when the ribs extend at an angle of preferably 25 ° to 32.5 ° relative to the tube axis.
  • a layer of laminar flow characteristic of turbulent flows forms with greatly reduced heat transfer. It leads to increased formation of pyrolysis coke with also poor thermal conductivity. Both layers together require a higher heat input or a higher burner power. This increases the tube wall temperature (TMT) and consequently shortens the life.
  • TMT tube wall temperature
  • the invention avoids this fact that the inner circumference of the profile by a maximum of 5%, for example 4% or 3.5%, based on the circumference of the Rippentäler touching enveloping circle.
  • the relative profile perimeter is at most 1.05 of the enveloping circle perimeter.
  • the area difference of the profile tube according to the invention ie its unwound inner surface, based on a smooth tube with the envelope circle diameter a maximum of + 5% or 1.05 times the smooth tube surface.
  • 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 shows a comparison of two pipes with the same hydraulic diameter and accordingly the same pressure loss and the same thermal performance result.
  • a further advantage of the profile circumference (relative profile circumference) according to the invention which is based on the enveloping circle circumference, consists in a more rapid heating of the feed gas at a reduced tube wall temperature.
  • the swirl flow produced according to the invention considerably reduces the laminar layer; it is also connected to a pipe center directed velocity vector, which reduces the residence time of cracking radicals or fission products on the hot tube wall and their chemical and catalytic conversion to pyrolysis coke.
  • the not inconsiderable in inner profile tubes with high ribs temperature differences between Rippentälind and ribs are compensated by the swirl flow according to the invention. This increases the time interval between two necessary decoking.
  • a not insignificant temperature difference results between the ridge crests and the bottom of the ridge valleys.
  • the residence time of the fouling-prone fission products is shorter in the case of spiral-shaped internal fins; In individual cases, this depends on the nature of the ribs.
  • the curve clearly shows that the higher peripheral speed of the profile 8 is consumed with 4.8 mm high ribs within the ridge valleys, while the peripheral speed of the inventive profile with a rib height of only 2 mm penetrates into the core of the flow. Although the peripheral speed of the profile 4 with only 3 ribs is approximately as high, but causes no spiral acceleration of the core flow.
  • the profile of the invention causes according to the curve in the diagram of Fig. 2 a spiral acceleration in the Rippentälern (upper curve branch), which covers wide area of the pipe cross-section and thus causes a homogenization of the temperature in the pipe.
  • the lower peripheral speed at the rib caps also ensures that there is no turbulence and backflow.
  • Fig. 3 three test tubes are shown with their data in cross section, including the inventive profile 3.
  • the diagrams show the temperature profile over the pipe radius (radius) on the shadow and the sun side.
  • a comparison of the diagrams shows the lower temperature difference between the pipe wall and center and the lower gas temperature at the pipe wall in the profile 3 according to the invention.
  • the swirl flow generated according to the invention ensures that the fluctuation of the inner wall temperature over the circumference of the pipe, that is between the sun and shade side is below 12 ° C, although the usually arranged in parallel rows of pipe coils of a tubular furnace with the help of rare wall burners heated only on opposite sides or with Combustion gases are acted upon and the pipes thus each have a burner facing the sun side and a 90 ° offset to the dark side.
  • the mean tube wall temperature ie the difference in the tube wall temperature between the sun and shadow sides leads to internal stresses and therefore determines the service life of the tubes. So the results from the diagram of the Fig.
  • a particularly favorable temperature distribution arises when the isotherms of the tube inner wall to the core of the flow are spiral.
  • a more uniform distribution of the temperature across the cross section results in particular if the peripheral speed builds up within 2 to 3 m and then remains constant over the entire tube length.
  • the process according to the invention should be operated with a view to a high Olefinausbeute with comparatively short tube length so that the homogeneity factor of the temperature over the cross section and related to the hydraulic diameter homogeneity factor of the temperature in relation to the homogeneity factor of a smooth tube (H G ⁇ ) is greater than 1.
  • the flow pattern of core and spin flow generated according to the invention can be achieved with a finned tube, in which the flank angle of each of the Length of a pipe section continuous ribs, that is, the outer angle between the rib edges and the radius of the tube 16 ° to 25 °, preferably 19 ° to 21 ° is such a flank angle ensured in conjunction with a rib pitch of 20 ° to 40 °, for example 22, 5 ° to 32.5 ° that results in the Rippentälern not a more or less self-contained, behind the rib flanks in the Rippentäler returning vortex flow that leads to the emergence of unwanted "twisters" in the Rippentälern, that is closed vortex pigtails.
  • the resulting in the Rippentälem vortices detach from the rib edges and are absorbed by the swirl flow.
  • the swirl energy induced by the ribs accelerates the gas particles and leads to a higher overall velocity. This leads to a reduction and homogenization of the Rohrwandtemperetur and to a homogenization of the temperature and the residence time over the pipe cross-section.
  • the ribs and the rib valleys located between the ribs are mirror-symmetrical in cross-section and form a wavy line, each with the same radii of curvature.
  • 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 of the ratio 4 x free cross section / profile circumference is equal to or greater 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 action of the profile.
  • the ratio of the quotients of the heat transfer coefficients Q R / Q 0 to the quotient of the pressure losses ⁇ P R / ⁇ P 0 in the water test using the laws of similarity and using the mediated for a naphtha / steam mixture Reynolds numbers, preferably 1.4 to 1.5, where R denotes a finned tube and 0 denotes 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 paraxial ribs (profile 1), in which the radial distance between the Rippentälern and the Rippenkuppen is 4.8 mm illustrate the data of the following Table.
  • the finned tubes all had 8 ribs and the same enveloping circle.
  • the finned tube according to the invention gives in the water test a higher by a factor of 2.56 heat transfer (Q R ) compared to the plain tube with only a factor of 1.76 increased pressure drop ( ⁇ P R ).
  • Fig. 7 are a tube with a smooth inner wall (smooth tube) faced three different profile tubes, including a tube according to the invention with 8 ribs with a slope of 30 °.
  • the hydraulic diameter, the axial velocity, the residence time and the pressure loss are indicated.
  • Output data were the flow rates of a 38 mm internal diameter smooth tube in use, which is identical to the hydraulic diameter. These data were converted to warm water according to the similarity laws (same Reynolds numbers) and based on the experiments (see ratio of the quotients of heat transfer and pressure loss for tests with water and the related homogeneity factor in the calculation with gases).
  • the heat from the pipe wall is introduced into the flow and thus more evenly distributed than in a normal undirected turbulent flow (smooth tube, profiles 1 and 2).
  • the spiraling flow distributes the particles more evenly across the cross section while the acceleration on the flanks reduces the average residence time.
  • the higher pressure loss of the profile 3 results from the peripheral speed.
  • the cause is the strong constriction of the flow and the loss of friction on the large inner surface of the profile.
  • the finned tube according to the invention can be produced, for example, from a centrifugally cast tube by turning the ends of a tube with axially parallel ribs against each other, or by forming the inner profile by preforming a centrifugally cast tube, for example by hot forging, hot drawing or cold forming via a profile tool, for example a flying die Mandrel or a mandrel with an inner profile of the tube corresponding outer profile is generated.
  • a profile tool for example a flying die Mandrel or a mandrel with an inner profile of the tube corresponding outer profile is generated.
  • Cutting machines for internal profiling of pipes are in different variants, for example from the German patent 195 23 280 known. These machines are also suitable for producing a finned tube according to the invention.
  • the forming temperature When hot forming, the forming temperature should be adjusted so that it comes in the region of the inner surface to a partial destruction of the grain structure and therefore later under the influence of the operating temperature to a recrystallization The result is a feinkömiges microstructure, the rapid diffusion of chromium, silicon and / or aluminum through the austenitic matrix to the inner surface of the tube and there for the rapid construction of an oxide protective layer leads.
  • the inner surface of the tube 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, bis 5% tungsten and additions of hafnium, titanium, rare earths, or zirconium, in each case up to 0.5% and up to 6% aluminum.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (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)
EP03725176A 2002-07-25 2003-05-08 Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen Expired - Lifetime EP1525289B9 (de)

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
DE10233961 2002-07-25
DE10233961A DE10233961A1 (de) 2002-07-25 2002-07-25 Verfahren zum thermischen Spalten von Kohlenwasserstoffen
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 EP1525289A1 (de) 2005-04-27
EP1525289B1 EP1525289B1 (de) 2011-09-28
EP1525289B9 true EP1525289B9 (de) 2012-02-29

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ID=30128404

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10012045A Withdrawn EP2298850A1 (de) 2002-07-25 2003-05-08 Rippenrohr zum thermischen Spalten von Kohlenwasserstoffen
EP03725176A Expired - Lifetime EP1525289B9 (de) 2002-07-25 2003-05-08 Verfahren und rippenrohr zum thermischen spalten von kohlenwasserstoffen

Family Applications Before (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) EP2298850A1 (ja)
JP (2) JP4536512B2 (ja)
KR (1) KR101023668B1 (ja)
CN (1) CN100523133C (ja)
AT (1) ATE526385T1 (ja)
AU (1) AU2003227737A1 (ja)
BR (1) BR0312919B1 (ja)
CA (1) CA2493463C (ja)
DE (1) DE10233961A1 (ja)
EA (1) EA010936B1 (ja)
ES (1) ES2374568T3 (ja)
HR (1) HRP20050072A2 (ja)
IL (1) IL166229A (ja)
MA (1) MA27325A1 (ja)
MX (1) MXPA05001070A (ja)
NO (1) NO337398B1 (ja)
NZ (1) NZ537827A (ja)
PL (1) PL204769B1 (ja)
PT (1) PT1525289E (ja)
RS (1) RS20050060A (ja)
UA (1) UA85044C2 (ja)
WO (1) WO2004015029A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
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
EP3384981A1 (de) 2017-04-07 2018-10-10 Schmidt + Clemens GmbH & Co. KG Rohr und vorrichtung zum thermischen spalten von kohlenwasserstoffen
DE102017003409A1 (de) 2017-04-07 2018-10-11 Schmidt + Clemens Gmbh + Co. Kg Rohr und Vorrichtung zum thermischen Spalten von Kohlenwasserstoffen
US11220635B2 (en) 2017-04-07 2022-01-11 Schmidt + Clemens Gmbh + Co. Kg Pipe and device for thermally cleaving hydrocarbons

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EP2037202B1 (en) 2006-07-05 2018-09-05 Nippon Steel & Sumitomo Metal Corporation Metal tube for thermal cracking reaction
US20120060727A1 (en) * 2009-03-17 2012-03-15 ToTAL PETROCHECMICALS RESEARCH FELUY Process for quenching the effluent gas of a furnace
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
CN107850241A (zh) * 2015-07-09 2018-03-27 沙特基础全球技术有限公司 烃裂化系统中结焦的最小化
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
CN110709490A (zh) * 2017-05-05 2020-01-17 埃克森美孚化学专利公司 用于烃加工的传热管
RU2757041C1 (ru) * 2017-10-27 2021-10-11 Чайна Петролеум Энд Кемикал Корпорейшн Интенсифицирующая теплопередачу труба, а также содержащие ее крекинговая печь и атмосферно-вакуумная нагревательная печь
GB2590363B (en) * 2019-12-09 2023-06-28 Paralloy Ltd Internally profiled tubes

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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
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Cited By (7)

* Cited by examiner, † Cited by third party
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
US11440106B2 (en) 2016-10-26 2022-09-13 Schmidt + Clemens Gmbh + Co. Kg Deep hole drilling method as well as tool for a deep hole drilling machine and deep hole drilling machine
EP3384981A1 (de) 2017-04-07 2018-10-10 Schmidt + Clemens GmbH & Co. KG Rohr und vorrichtung zum thermischen spalten von kohlenwasserstoffen
DE102017003409A1 (de) 2017-04-07 2018-10-11 Schmidt + Clemens Gmbh + Co. Kg Rohr und Vorrichtung zum thermischen Spalten von Kohlenwasserstoffen
US11220635B2 (en) 2017-04-07 2022-01-11 Schmidt + Clemens Gmbh + Co. Kg Pipe and device for thermally cleaving hydrocarbons
DE102017003409B4 (de) 2017-04-07 2023-08-10 Schmidt + Clemens Gmbh + Co. Kg Rohr und Vorrichtung zum thermischen Spalten von Kohlenwasserstoffen

Also Published As

Publication number Publication date
IL166229A (en) 2008-11-26
KR101023668B1 (ko) 2011-03-25
CN1671824A (zh) 2005-09-21
IL166229A0 (en) 2006-01-15
BR0312919A (pt) 2005-07-05
ES2374568T3 (es) 2012-02-17
PL204769B1 (pl) 2010-02-26
EP1525289A1 (de) 2005-04-27
MA27325A1 (fr) 2005-05-02
WO2004015029A1 (de) 2004-02-19
PT1525289E (pt) 2012-01-04
CA2493463A1 (en) 2004-02-19
AU2003227737A1 (en) 2004-02-25
MXPA05001070A (es) 2005-10-05
BR0312919B1 (pt) 2014-06-24
JP2005533917A (ja) 2005-11-10
PL373967A1 (en) 2005-09-19
RS20050060A (en) 2007-09-21
EA200500258A1 (ru) 2005-08-25
NO337398B1 (no) 2016-04-04
HRP20050072A2 (en) 2005-08-31
DE10233961A1 (de) 2004-02-12
EP1525289B1 (de) 2011-09-28
JP2010150553A (ja) 2010-07-08
KR20050052457A (ko) 2005-06-02
NZ537827A (en) 2007-04-27
EP2298850A1 (de) 2011-03-23
UA85044C2 (ru) 2008-12-25
EA010936B1 (ru) 2008-12-30
NO20050493L (no) 2005-03-17
ATE526385T1 (de) 2011-10-15
CN100523133C (zh) 2009-08-05
CA2493463C (en) 2013-01-15
JP4536512B2 (ja) 2010-09-01

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