EP3334521A1 - Tube de reformage comprenant un insert de protection contre la corrosion - Google Patents
Tube de reformage comprenant un insert de protection contre la corrosionInfo
- Publication number
- EP3334521A1 EP3334521A1 EP16750830.8A EP16750830A EP3334521A1 EP 3334521 A1 EP3334521 A1 EP 3334521A1 EP 16750830 A EP16750830 A EP 16750830A EP 3334521 A1 EP3334521 A1 EP 3334521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- reforming tube
- tube according
- ceramic
- reforming
- 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.)
- Pending
Links
- 238000002407 reforming Methods 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims description 23
- 230000007797 corrosion Effects 0.000 title claims description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 239000011819 refractory material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 238000010410 dusting Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000005524 ceramic coating Methods 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910020068 MgAl Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/14—Coatings characterised by the materials used by ceramic or vitreous materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0218—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of ceramic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0236—Metal based
Definitions
- the present invention relates to a reforming tube comprising means for avoiding in its cavity the phenomenon of corrosion called "metal dusting".
- metal dusting is meant a catastrophic disintegration of metals (Fe, Ni, Co) observed in the fuel atmospheres of chemical and petrochemical processes.
- the aluminization of the alloy involves reacting the aluminum vapor with the alloy to form an outer layer rich in aluminum.
- the chemical composition of the coating may vary. For example if we consider a Cr-Ni based alloy, the outer layer will contain Al, Ni and Cr.
- Composite tubes are another way to reduce corrosion. This solution is based on the assembly of two materials with dissimilar properties. Usually a material will have a high resistance to corrosion under the process conditions while
- FIRE REPLACEM ENT (RULE 26) that the other will have high mechanical properties. Both materials, usually alloys, are welded together using different manufacturing processes. This leads to two layers of materials having different thicknesses according to the process specifications. The main difficulty is to produce complex shapes and the problem of thermal expansion resulting in stresses that could increase the rate of corrosion or reduce the mechanical strength.
- the first limitation of existing solutions vis-à-vis the phenomenon of corrosion called "metal dusting" is the size of the parts to be protected.
- metal dusting the phenomenon of corrosion
- these tubes are about 13 m long and it is difficult to find companies that have the appropriate equipment to achieve a homogeneous coating (thickness and chemical composition) .
- the configuration of the parts to be protected can also reduce the choice in terms of coating techniques and chemical composition of the coating.
- a solution of the present invention is a reforming tube 1 comprising:
- the reforming tube according to the present invention may have one or more of the following characteristics:
- the refractory material 5 matches the shape of the inner wall and the shape of the protective part
- the refractory material 5 is chosen from: ceramic fiber fabrics, ceramic fiber paper, refractory ceramic fibers, and polycrystalline ceramic fibers.
- said tube comprises a seam 6 between the upper end of the protection piece and the inner wall
- said tube comprises a joint 7 between the lower end of the protection piece and the inner wall
- At least one joint 6 or 7 is a weld, a solder or a joint made with glass or ceramic glass;
- the protective part 4 comprises an inert material with respect to corrosion by metal dusting
- the material of the protective part is chosen from alloys based on nickel and chromium; examples that may be mentioned are commercial alloys 601, 617, 690 and 693;
- the material of the protective part 4 is made of ceramic or has a ceramic coating;
- the corrosion protection piece 4 comprises a material having a low resistance to corrosion and coated with a material having a very good corrosion resistance or a ceramic coating;
- the ceramic may be chosen from Al 2 O 3, MgAl 2 O 4, ZrO 2, Y 2 O 3 -ZrO 2, MgO, MgO-ZrO 2, Al 2 O 3 -ZrO 2, SiC, and SiN 4.
- the solution proposed is to insert a protected ceramic or metal part.
- the constituent material of this protective part is selected according to its resistance to corrosion and its chemical and physical compatibility with the alloy of the tube.
- the protective piece does not stick to the alloy of the tube which makes a big difference with the solutions of the prior art.
- the degree of freedom between the tube and the protective part makes it possible to reduce the mechanical stresses that could be induced by the thermal expansion of the parts exposed to high temperatures (400-1000 ° C).
- this space between the inner wall of the tube and the protective part could lead to a flow of synthesis gas. Also, it is necessary to avoid the access of synthesis gas in this space.
- the present invention proposes as a main solution to the problem of access of the synthesis gas in said space, the use of a refractory material filling said space between the inner wall and the protective part.
- the refractory material adjusts to the shape of the inner wall of the tube.
- the refractory material must be selected according to its ability to withstand a synthesis gas atmosphere (H2, CO, CH4, H2O) at high temperature (800 to 1000 ° C) and to deform when subjected to a limited load in order to fit the shape of the inner wall of the tube and the shape of the wall of the protective part.
- the reforming tube according to the invention will preferably be used for the production of hydrogen from synthesis gas.
- the solution proposed in the context of the invention solves the following problems: - corrosion protection possible for large areas of the reforming tube.
- large surface is meant parts whose dimensions make it difficult or impossible to apply a protective coating;
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15180784.9A EP3130397A1 (fr) | 2015-08-12 | 2015-08-12 | Tube de réformage avec pièce de protection contre la corrosion |
| PCT/EP2016/069106 WO2017025587A1 (fr) | 2015-08-12 | 2016-08-11 | Tube de reformage comprenant un insert de protection contre la corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3334521A1 true EP3334521A1 (fr) | 2018-06-20 |
Family
ID=54035120
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15180784.9A Withdrawn EP3130397A1 (fr) | 2015-08-12 | 2015-08-12 | Tube de réformage avec pièce de protection contre la corrosion |
| EP16750830.8A Pending EP3334521A1 (fr) | 2015-08-12 | 2016-08-11 | Tube de reformage comprenant un insert de protection contre la corrosion |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15180784.9A Withdrawn EP3130397A1 (fr) | 2015-08-12 | 2015-08-12 | Tube de réformage avec pièce de protection contre la corrosion |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10421057B2 (fr) |
| EP (2) | EP3130397A1 (fr) |
| CN (1) | CN208906063U (fr) |
| WO (1) | WO2017025587A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2598579A (en) * | 2020-09-02 | 2022-03-09 | Unisa | Tubular reactors |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1625936C3 (de) * | 1967-09-29 | 1978-04-06 | Benteler-Werke Ag Werk Neuhaus, 4794 Schloss Neuhaus | Durch Biegen verformbares Leitungsrohr aus Metall für Heizungsanlagen und Wasserinstallationen, insbesondere Warmwasserleitungen |
| US4122894A (en) * | 1974-05-13 | 1978-10-31 | British Steel Corporation | Tube mounting means for a ceramic recuperator |
| US4176612A (en) * | 1978-03-06 | 1979-12-04 | Kenneth Speer | Ceramic ferrule |
| EP0037243B1 (fr) * | 1980-03-28 | 1984-11-28 | Peabody Encomech Limited | Dispositif d'échange de chaleur |
| DE3663652D1 (en) * | 1985-03-05 | 1989-07-06 | Ici Plc | Steam reforming hydrocarbons |
| CA2178524C (fr) * | 1996-06-07 | 2007-07-03 | Howard John Lawrence | Tube de protection de chaudiere |
| US6139649A (en) * | 1996-08-23 | 2000-10-31 | Alon, Inc. | Diffusion method for coating high temperature nickel chromium alloy products |
| US6454274B2 (en) * | 2000-03-27 | 2002-09-24 | Praxair Technology, Inc. | Joint assembly for joining a ceramic membrane to a tube sheet |
| ATE515673T1 (de) * | 2007-11-21 | 2011-07-15 | Petroleum Oil And Gas Corp Of South Africa Pty Ltd | Rohrplattenanordnung |
| US8622094B2 (en) * | 2011-07-18 | 2014-01-07 | Air Products And Chemicals, Inc. | Metal dusting protection for welded pipe assemblies |
| FR2987878B1 (fr) * | 2012-03-12 | 2014-05-09 | Air Liquide | Nouveau joint ceramique/metal et son procede d'elaboration |
-
2015
- 2015-08-12 EP EP15180784.9A patent/EP3130397A1/fr not_active Withdrawn
-
2016
- 2016-08-11 CN CN201690001080.5U patent/CN208906063U/zh active Active
- 2016-08-11 US US15/751,352 patent/US10421057B2/en active Active
- 2016-08-11 WO PCT/EP2016/069106 patent/WO2017025587A1/fr not_active Ceased
- 2016-08-11 EP EP16750830.8A patent/EP3334521A1/fr active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2598579A (en) * | 2020-09-02 | 2022-03-09 | Unisa | Tubular reactors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208906063U (zh) | 2019-05-28 |
| WO2017025587A1 (fr) | 2017-02-16 |
| EP3130397A1 (fr) | 2017-02-15 |
| US10421057B2 (en) | 2019-09-24 |
| US20180229206A1 (en) | 2018-08-16 |
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Owner name: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |