EP3589397A1 - Systeme de couverture pour un garnissage de particules solides et reacteur comportant un tel systeme - Google Patents
Systeme de couverture pour un garnissage de particules solides et reacteur comportant un tel systemeInfo
- Publication number
- EP3589397A1 EP3589397A1 EP18708452.0A EP18708452A EP3589397A1 EP 3589397 A1 EP3589397 A1 EP 3589397A1 EP 18708452 A EP18708452 A EP 18708452A EP 3589397 A1 EP3589397 A1 EP 3589397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- articulated
- metal
- plates
- reactor
- cover
- 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.)
- Withdrawn
Links
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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0292—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds with stationary packing material in the bed, e.g. bricks, wire rings, baffles
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0207—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal
- B01J8/0214—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly horizontal in a cylindrical annular shaped bed
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00831—Stationary elements
- B01J2208/00849—Stationary elements outside the bed, e.g. baffles
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00884—Means for supporting the bed of particles, e.g. grids, bars, perforated plates
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00938—Flow distribution elements
-
- 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
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
- B01J2208/023—Details
- B01J2208/024—Particulate material
- B01J2208/025—Two or more types of catalyst
Definitions
- the present invention relates to a reactor for performing chemical reactions in the gas phase at specified temperatures and pressures. More particularly, the invention relates to a reactor of the "radial flow" type for the reforming of petroleum fractions such as, for example, the manufacture of high octane gasoline from naphthas.
- the portion above the lining is generally composed of a cap covering the chimney, a waterproof skirt of refractory fabric placed on the lining ensuring that the fluid passes through the peripheral serration and a layer of inert balls placed on the waterproof skirt to maintain the latter against the lining.
- these refractory fabrics may sometimes not be able to follow all the deformations of the lining induced by an insufficiently dense filling of the lining prior to manufacture.
- the object of the invention is to overcome these disadvantages by providing a new covering system for a solid particle lining which is free of carcinogenic elements, reusable several cycles, adaptable to several reactor sizes and which is able to match the deformations of the packing.
- the invention relates to a covering system for a packing of solid particles, characterized in that it comprises an articulated structure and an annular envelope covering the articulated structure, the casing being formed by movable mounted metal plates. between them in a sealed manner, the structure articulated comprising metal skirts forming articulated concentric circles to support the plates of the envelope and to adapt to the deformations of the lining, and metal elements forming articulated spacers to maintain a spacing between the concentric circles articulated and s to adapt to the deformations of the packing.
- the covering system for a packing of solid particles uses metal parts which are free of carcinogenic elements.
- these metal parts are more resistant than refractory fabrics which allows reuse for several cycles.
- these metal parts being hinged to each other, it is possible to choose the number to adapt to different reactor sizes but also to be mobile relative to each other in order to stay in durability against packing even if deformations occur during manufacture.
- the articulated structure comprises between 3 and 6 articulated concentric circles;
- each articulated concentric circle comprises between 3 and 10 metal skirts which are movable relative to one another;
- the articulated structure comprises between 3 and 8 articulated spacers
- each articulated spacer comprises between 2 and 5 metal elements which are movable relative to each other;
- the envelope comprises between 7 and 27 metal plates
- the metal plates form crown sectors
- the metal plates are mounted to move together sealingly with the aid of cords of ceramic fiber;
- the articulated structure comprises a cross at each intersection between the articulated concentric circles and the spacers;
- each spider comprises four free ends pivotally mounted each with a metal skirt or a metal element.
- the invention relates to a chemical reactor comprising an enclosure provided with a peripheral internal serration, a central chimney and a compartment comprising a packing of solid particles, characterized in that the chemical reactor comprises a system cover as shown above mounted between the peripheral internal serration and a lid covering the chimney.
- the cover system is sealingly mounted against the cover by means of sealing means;
- the roofing system further comprises a partition mounted on a part peripheral of the casing facing the peripheral internal serration to form a gap between the wall and the peripheral internal serration arranged to receive inert balls.
- FIG. 1 is a sectional view of a reactor according to the invention.
- FIG. 2 is a partial and enlarged view of FIG. 1 centered on a covering system according to the invention
- FIG. 3 is a view from above of an envelope of the covering system according to the invention.
- FIG. 4 is a perspective view, before assembly, of an articulated structure part of the covering system according to the invention.
- FIG. 5 is a view from above, after assembly, of an articulated structure portion of the covering system according to the invention.
- FIG. 6 is a partial and enlarged view of Figure 2 showing the interaction between the casing and the hinged structure of the cover system according to the invention.
- the chemical reactor 1 is intended to perform a "horizontal baffling" to force the radial passage C of the fluid through a packing 3 formed of solid particles (granules, rods, grains, etc.) based on catalyst stacked to to make the fluid undergo a chemical reaction capable of transforming it.
- the reactor 1 comprises a cover system 5 for imposing a deflection B to the fluid to a peripheral internal serration 7 which will force the fluid to a passage radial C in the thickness of the lining 3, also called "catalytic bed".
- the fluid passing through the lining 3 is transformed in contact with the packing and the reaction products are collected in a perforated central duct 9 passing vertically in the center of the lining 3 and from which the reaction products are discharged in the direction D towards the lower part of the reactor 1.
- the covering system 5 for the packing 3 of solid particles mainly comprises an articulated structure 11 and an annular envelope 13 intended to cover, in a sealed manner, the articulated structure 11.
- the cover system 5, which is mounted between the peripheral internal serration 7 and a lid 15 covering the chimney 9, will advantageously according to the invention, impose the deflection B of the fluid towards the peripheral internal serration 7 but also be able to remain permanently against the lining 3 even if the latter deforms during manufacture. More specifically, the lining 3 is in contact with the underside of the annular casing 13 so that the majority of the articulated structure 11 is buried in the upper part of the lining 3.
- the annular envelope 13 is formed by metal plates 16, 17 mounted movably between them in a sealed manner. More precisely, according to the configuration of the reactor 1, the annular envelope 13 may comprise between seven and twenty-seven metal plates, of thickness between one millimeter and five millimeters. Thus, advantageously according to the invention, it is possible to choose the number to adapt to different reactor sizes 1 typically having internal diameters of between 1.5 meters and 4 meters.
- a first series of plates 16 forms a central ring around the cover 15.
- the first series is formed of three plates 16 in the form of a crown sector of a width of about 25 cm.
- the width and / or the number of plates 16 of the first series may be less than or greater than these values only proposed by way of example.
- the shape of the plates 16 could be adapted to the case where the cover 15 does not have a circular peripheral surface but instead would include, for example, a polygonal surface.
- a second series of plates 17 forms at least one peripheral ring around the central ring.
- the second series is formed of eight first ring sector-shaped plates 17i and surrounded by eight second ring-shaped plates 17 2 , the plate widths 17 1 and 17 2 being adapted to the reactor diameter 1.
- the number of plates 17 ⁇ and / or the number of peripheral rings of the second series can be lower or higher than these values only proposed to as an example.
- the plates 17 x could be of different shape without losing their function as, for example, all, or partly, substantially trapezoidal shape.
- the annular casing 13 must be sealed to allow the deflection B of the fluid but also adapt to the deformations of the packing 3.
- the metal plates 16, 17 x are, preferably according to the invention. invention, mounted to move together sealingly using for example at least one cord 19, preferably ceramic fiber.
- a peripheral groove 21 is formed on the first series of plates 16 to receive at least one cord 19, the second series of plates 17i being mounted in abutment against it waterproof.
- a peripheral flange 29i, 292 is provided on the second series of plates 17i, 172 to each receive at least one cord 19.
- the two plates 17i and 17 2 adjacent are secured with a U-shaped section 27 pressed against the cords 19 with a shaft assembly 23 - conical flange 25.
- the shaft 23 is mounted on a spider 41 2 of the articulated structure 11 as explained below.
- the second series of plates 17 x is mobile and waterproof.
- the nature and / or the geometry and / or the number of cord 19 may differ without losing the advantages of the invention.
- the type of seal could be the same between all the plates 16, 17 x of the casing 13 or even be different from the two types of seal presented above without losing the advantages of the invention.
- the articulated structure 11 has metal skirts 31 forming concentric circles articulated 33 x .
- Concentric circles hinged x 33 allow support plates 16, 17 x of the casing 13 and to adapt to the deformations of the packing 3.
- the articulated structure 11 may comprise between three and six concentric articulated circles 33 x along the width of the reactor 1.
- each concentric articulated circle 33 x may comprise between three and ten skirts 31 x metal having a height of between five and ten centimeters. , and which are movable relative to each other as explained below. Indeed, it is immediate that, more a concentric circle 33 x has skirts 31 x , more precise will be its adaptation to the deformations of the lining 3.
- the skirts 31 x of the hinged concentric circle 33i comprise sealing means 39 enabling the fluid not to pass between the cover 15 and the concentric articulated circle 33i.
- These sealing means 39 may be of the same type as the cords 19 and comprise for example three cords pressed against the cover 15 by means of, for example, a single cable gland (not shown) to allow the concentric hinged circle 33i to slide along the cover 15 in case of deformation of the lining 3.
- the articulated structure 11 further comprises 35 x metal elements forming articulated spacers 37 x making it possible to maintain a substantially constant spacing between the concentric articulated circles 33 x and to adapt to the deformations of the packing 3.
- the articulated structure 11 can have between three and eight articulated spacers 37 x extending radially between the cover 15 and the peripheral portion of the casing 13.
- each articulated spacer 37 x may comprise comprises between two and five metal elements which are movable by compared to others.
- the articulated concentric circles 33 1 to 33 4 are thus maintained at a predetermined distance from each other by means of three articulated spacers 37 x , each formed by three elements 35 1 to 35 3.
- each spider 41 x may comprise four free ends pivotally mounted each with a metal skirt 31 x or a metal element 35 x by means of a pivot 43.
- the covering system 5 for the packing 3 of solid particles therefore uses metal parts for the hinge 11 and the casing 13, such as, for example, a refractory stainless steel of the TP321 type, which does not generates no carcinogenic risk for reactor operators 1.
- these metal parts are more resistant than refractory fabrics which allows reuse for several cycles.
- these metal parts being hinged to each other, it is possible to choose the number to adapt to different reactor sizes 1 but also to be movable relative to each other in order to stay permanently against the lining 3 even if deformations occur during manufacture.
- the filling 3 fulfills the interstices delimited between the concentric hinged circles 33 and the elements 35 of the hinged structure 11 as much as possible, the fluid to be transformed, even while traveling under the plates 16, 17 x of the envelope 13, will be transformed on contact of the lining 3 during the radial passage C.
- the cover system 5 further comprises a partition 45 (visible in Figure 2) mounted on a peripheral portion of the casing 13 facing the peripheral internal serration 7 to form a gap between the partition 45 and the internal serration device 7 arranged to receive inert balls 47 such as, for example, based on alumina.
- This configuration variant makes it possible to limit the number of different plates 17 x and to avoid having to develop a shape corresponding to the peripheral serration 7 for the 17 x peripheral plates.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Spray Control Apparatus (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1751676A FR3063439B1 (fr) | 2017-03-01 | 2017-03-01 | Systeme de couverture pour un garnissage de particules solides et reacteur comportant un tel systeme |
PCT/FR2018/050379 WO2018158521A1 (fr) | 2017-03-01 | 2018-02-16 | Systeme de couverture pour un garnissage de particules solides et reacteur comportant un tel systeme |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3589397A1 true EP3589397A1 (fr) | 2020-01-08 |
Family
ID=59031092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18708452.0A Withdrawn EP3589397A1 (fr) | 2017-03-01 | 2018-02-16 | Systeme de couverture pour un garnissage de particules solides et reacteur comportant un tel systeme |
Country Status (11)
Country | Link |
---|---|
US (1) | US10792636B2 (fr) |
EP (1) | EP3589397A1 (fr) |
KR (1) | KR20190127722A (fr) |
BR (1) | BR112019018102A2 (fr) |
CA (1) | CA3054757A1 (fr) |
CL (1) | CL2019002502A1 (fr) |
FR (1) | FR3063439B1 (fr) |
MY (1) | MY197449A (fr) |
RU (1) | RU2741393C1 (fr) |
SG (1) | SG11201908004RA (fr) |
WO (1) | WO2018158521A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109985577B (zh) * | 2019-05-08 | 2024-02-23 | 张化机(苏州)重装有限公司 | 一种加氢反应器 |
FR3096122B1 (fr) * | 2019-05-16 | 2021-05-14 | Air Liquide | Dispositif de maintien d’un moyen d’echange de chaleur et/ou de matiere destine a une colonne d’echange de chaleur et/ou de matiere |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2319620A (en) * | 1940-02-26 | 1943-05-18 | Universal Oil Prod Co | Process for catalytic conversion reactions |
US2634194A (en) * | 1951-10-31 | 1953-04-07 | Universal Oil Prod Co | Lined reactor |
AT306745B (de) * | 1971-05-24 | 1973-04-25 | Chemie Linz Ag | Vorrichtung zur Durchführung von Hochdrucksynthesen, beispielsweise der Ammoniaksynthese |
US4374094A (en) * | 1981-10-29 | 1983-02-15 | Chevron Research Company | Method and apparatus for uniform flow through radial reactor centerpipes |
ES2050512T3 (es) * | 1990-06-15 | 1994-05-16 | Inst Francais Du Petrole | Reactor con una pared inferior y/o una pared superior incluyendo una capa de un material flexible refractario y su utilizacion. |
FR2663244B1 (fr) * | 1990-06-15 | 1992-09-18 | Inst Francais Du Petrole | Reacteur avec une paroi inferieure et/ou une paroi superieure comportant au moins une couche de bandes de tissu refractaire superposees et son utilisation. |
US5372792A (en) * | 1992-02-03 | 1994-12-13 | Exxon Research & Engineering Co. | Radial flow cold wall reactor |
US5389235A (en) * | 1992-12-02 | 1995-02-14 | Uop | Catalytic reaction zone for sulfur contaminant sensitive catalyst |
US7226568B1 (en) * | 2000-03-09 | 2007-06-05 | Weatherford/Lamb, Inc. | Plural conduit replaceable outer support structure for radial flow system |
FR2822719B1 (fr) * | 2001-03-28 | 2003-08-29 | Johnson Filtration Systems | Conduit de filtration tubulaire pour reacteur a flux radial |
US7125529B2 (en) * | 2002-11-12 | 2006-10-24 | Uop Llc | Apparatus and process for reacting over two catalyst beds |
US7544335B2 (en) * | 2005-05-25 | 2009-06-09 | Chevron Phillips Chemical Company Lp | Floating top cover plate assembly for radial flow reactors |
US9126168B2 (en) * | 2010-12-15 | 2015-09-08 | Exxonmobil Research And Engineering Company | Catalyst bed platform with center support pipe |
-
2017
- 2017-03-01 FR FR1751676A patent/FR3063439B1/fr active Active
-
2018
- 2018-02-16 WO PCT/FR2018/050379 patent/WO2018158521A1/fr unknown
- 2018-02-16 CA CA3054757A patent/CA3054757A1/fr active Pending
- 2018-02-16 RU RU2019128420A patent/RU2741393C1/ru active
- 2018-02-16 MY MYPI2019005030A patent/MY197449A/en unknown
- 2018-02-16 KR KR1020197026807A patent/KR20190127722A/ko active IP Right Grant
- 2018-02-16 BR BR112019018102-4A patent/BR112019018102A2/pt not_active Application Discontinuation
- 2018-02-16 EP EP18708452.0A patent/EP3589397A1/fr not_active Withdrawn
- 2018-02-16 SG SG11201908004RA patent/SG11201908004RA/en unknown
- 2018-02-16 US US16/490,742 patent/US10792636B2/en active Active
-
2019
- 2019-08-30 CL CL2019002502A patent/CL2019002502A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
FR3063439A1 (fr) | 2018-09-07 |
KR20190127722A (ko) | 2019-11-13 |
FR3063439B1 (fr) | 2019-04-19 |
RU2741393C1 (ru) | 2021-01-25 |
MY197449A (en) | 2023-06-19 |
SG11201908004RA (en) | 2019-09-27 |
BR112019018102A2 (pt) | 2020-03-31 |
US10792636B2 (en) | 2020-10-06 |
US20200023329A1 (en) | 2020-01-23 |
CL2019002502A1 (es) | 2019-12-27 |
CA3054757A1 (fr) | 2018-09-07 |
WO2018158521A1 (fr) | 2018-09-07 |
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