WO2014160680A1 - Appareil pour un réacteur à écoulement radial et son procédé d'assemblage - Google Patents

Appareil pour un réacteur à écoulement radial et son procédé d'assemblage Download PDF

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Publication number
WO2014160680A1
WO2014160680A1 PCT/US2014/031675 US2014031675W WO2014160680A1 WO 2014160680 A1 WO2014160680 A1 WO 2014160680A1 US 2014031675 W US2014031675 W US 2014031675W WO 2014160680 A1 WO2014160680 A1 WO 2014160680A1
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WO
WIPO (PCT)
Prior art keywords
transfer pipe
catalyst
transfer
end portion
tapered
Prior art date
Application number
PCT/US2014/031675
Other languages
English (en)
Inventor
Nathan SIEDLER
Original Assignee
Uop Llc
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
Priority claimed from US13/852,596 external-priority patent/US9050571B2/en
Priority claimed from US13/852,640 external-priority patent/US20140290061A1/en
Application filed by Uop Llc filed Critical Uop Llc
Publication of WO2014160680A1 publication Critical patent/WO2014160680A1/fr

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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
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/003—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor in a downward flow
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00761—Discharging

Definitions

  • a wide variety of processes use radial or horizontal flow reactors to effect the contact of particulate matter with a gaseous stream. These processes include hydrocarbon conversion adsorption and exhaust gas treatment. In most of these processes, contact of the particulate material with the fluid decreases the effectiveness of the particulate material in accomplishing its attendant function. In order to maintain the effectiveness of the process, a system has been developed whereby particulate material is semi-continuously withdrawn from the contacting zone and replaced by fresh particulate material so that the horizontal flow of fluidized material will constantly contact particulate material having a required degree of effectiveness. Typical examples and arrangements for such systems can be found in U.S. Pat. No. 3,647,680, U.S. Pat. No. 3,692,496 and U.S. Pat. No. 3,692,496, U.S. Pat. No. 3,706,536, and U.S. Pat. No. 5,130,106.
  • the catalyst particles can go through a further series of reaction zones and are collected and transported to a regeneration vessel for the restoration of the catalyst particles by the removal of coke and other hydrocarbon by-products that are produced in the reaction zone and accumulate on the catalyst.
  • the reactants typically flow serially through the one or more reaction zones.
  • the dehydrogenation reaction is typically endothermic so the reactant stream is heated before each reaction zone to supply the necessary heat for the reaction.
  • the reactants flow through each reaction zone in a generally horizontal direction through a bed of catalyst. In most cases the catalyst bed is arranged in an annular form so that the reactants flow radially through the catalyst bed.
  • hydrocarbon conversion processes can also be effected with a system for continuously moving catalyst particles under gravity flow through one or more reactors having a horizontal flow of reactants.
  • One such process is the reforming of naphtha.
  • the catalyst particles in each reaction zone are retained between an inlet screen and an outlet screen that together form a vertical bed and allow the passage of vapor through the bed.
  • Radial-flow reactors typically include a reactor shell with an annular catalyst retention space. Gaseous fluid flows either radially inwardly or outwardly through the annular catalyst retention space to contact the gas with the solid catalyst within the catalyst retention space.
  • the annular catalyst retention space is typically defined by a partition assembly including some type of screened surface.
  • the screened surface is for holding catalyst beds in place and for aiding in the distribution of pressure over the surface of the reactor to facilitate radial flow through the reactor bed.
  • the screen may include, for example a mesh, either wire or other material, or a perforated or punched plate.
  • the screened surface includes an inner screen and an outer screen with the catalyst retention space defined therebetween.
  • the screen or mesh provides a barrier to prevent the loss of solid catalyst particles while allowing fluid to flow through the bed.
  • catalyst particles are typically introduced at the top of the reactor, and flow downward through the catalyst retention space and are removed at the bottom through catalyst removal nozzles or ports.
  • catalyst transfer pipes communicate with the catalyst retention space and extend through the catalyst removal ports to facilitate the flow of the moving bed of catalyst out of the catalyst retention space where it can be transferred to another reactor, regenerated in a regeneration portion of the process, or removed from the system.
  • the screens and the catalyst transfer pipes are preferably constructed of a non-reactive material, but in reality the material often undergoes some reaction through corrosion, and over time problems arise from the corroded screen or mesh.
  • the catalyst contact surfaces of the screens and catalyst transfer pipes are typically designed to provide a generally smooth surface over which the catalyst particles can flow.
  • wires of the screens have a wedge shape with the flat face facing the catalyst retention area for minimal attrition with respect to catalyst particles which are moving downwardly by gravity during use.
  • an apparatus for a radial-flow reactor.
  • the apparatus includes a generally annular partition assembly. At least one catalyst transfer pipe depends from the partition assembly. An end portion of the catalyst transfer pipe is inwardly tapered.
  • a reactor shell portion is provided that includes at least one catalyst transfer port with an opening for receiving the catalyst transfer pipe.
  • the catalyst transfer port includes a centering device with a center opening for centering the transfer pipe with the catalyst transfer port.
  • the centering device includes a tapered upper surface extending at a decline from an inner surface of the catalyst transfer port toward the center opening.
  • a method for assembling a radial-flow reactor that includes lowering a partition assembly having at least one transfer pipe depending thereform into a reactor shell portion. The method further includes aligning the transfer pipe with an opening of a corresponding catalyst transfer port of the reactor shell portion. The transfer pipe is lowered through the opening of the corresponding catalyst transfer port and an end portion of the transfer pipe is contacted with a tapered upper surface of a centering device within the opening. The end portion of the transfer pipe is slid along the tapered upper surface to shift the transfer pipe into alignment with and through the center opening of the centering device.
  • a method includes contacting tapered end portions of a plurality of depending transfer pipes with centering devices within the openings of catalyst transfer ports. The method further includes sliding the tapered end portions along surfaces of the centering devices to shift the transfer pipes through center openings of the centering devices.
  • FIG. 1 is a cross-sectional view of a radial-flow reactor system in accordance with various embodiments
  • FIG. 2 is a partial cross-sectional view of a portion of a partition assembly in accordance with various embodiments
  • FIG. 5 is a partial perspective view of an end portion of a catalyst transfer pipe in accordance with various embodiments; and [0015] FIG. 6 is a cross sectional view of an end portion of the catalyst transfer pipe partially inserted into a catalyst transfer port during assembly.
  • a radial-flow reactor 2 in accordance with one aspect is illustrated that includes inner and outer annular partitions for supporting an annular bed of solid material therebetween.
  • the reactor 2 according to one aspect includes a reactor shell 4 and an annular partition assembly 6.
  • the partition assembly 6 may include inner and outer partition assemblies.
  • the partition assembly 6 includes an annular inner partition 8 in the form of an inner screen defining a centerpipe 7 and an annular outer partition 10 in the form of outer screen.
  • An annular catalyst retention space 12 between the inner and outer screens 8 and 10 for retaining a solid particle, or catalyst, is defined by the inner and outer screens 8 and 10 of the partition assembly 6.
  • the particulate material or catalyst typically flows through the catalyst retention space 12 to provide a moving bed of catalyst.
  • the flow of the catalyst may be assisted by gravity by flowing downwardly through the retention space 12.
  • the catalyst material is subsequently removed through the bottom of the reactor in order to be transferred downstream, regenerated, or discarded.
  • catalyst transfer ports 22 are provided at the base of the reactor 2 and catalyst transfer pipes 24 extend through the transfer ports 22 in order to provide fluid communication with the catalyst retention space 12 and facilitate the flow of catalyst through the catalyst transfer pipes.
  • the reactor 2 may be configured to have an opposite flow pattern as that illustrated in FIG. 1 such that reactant fluid enters through an inlet into annular space between the reactor shell and the outer partition and flows radially inwardly through the catalyst retention space where it contacts the catalyst and reacts to form a product stream.
  • the product stream flows radially inwardly through the center pipe where it is collected in the centerpipe and exits through the outlet.
  • the reactor 2 also includes one or more catalyst transfer ports 22 typically positioned in a bottom portion of the reactor 2 for removing the catalyst from the catalyst retention space 12.
  • One or more corresponding catalyst transfer pipes 24 provide fluid communication with the catalyst retention space 12 and extend through openings 26 of the catalyst transfer ports 22. In this regard, during operation, the catalyst particles are able to flow from the catalyst retention space 12 through the catalyst transfer pipes 24 and exit the reactor 2. There may be one or several of such transfer pipes 24 connected to and depending from the partition assembly 6.
  • the transfer pipes 4 may be attached to a partition assembly 6 including both the inner and outer partitions, or it may be connected to an inner partition assembly 8 or an outer partition assembly 10. In the example illustrated in FIG. 1, a plurality of transfer pipes 24 are attached to and depend from a bottom support wall 28 of an outer partition assembly 6.
  • a top portion of the reactor 2 is removed and the partition assembly 6 is typically lowered into a bottom portion 30 of the reactor 2.
  • the partition assembly is lowered, for example the outer partition assembly 10 in FIG. 1, the transfer pipes 24 are aligned with the openings 26 of the corresponding catalyst transfer ports 22 and the transfer pipes 24 are lowered through the openings 26 as the outer partition assembly 10 is lowered into the reactor 2.
  • the centering ring tapered upper surface 38 extends at an angle below a radial axis 42 of the transfer pipe 24 so that during installation a bottom portion of the catalyst transfer pipe 24 can contact the tapered upper surface 38.
  • the bottom portion 46 is biased inwardly toward the center opening 36 as it slides along the tapered upper portion 38 of the centering ring 34 until it is generally aligned with the center opening 36.
  • the transfer pipe 24 may pass through the center opening 36 and be inserted fully into position within the catalyst transfer port 22. In this manner, the catalyst transfer pipe 24 can be installed without becoming obstructed by an upper surface of the centering ring, which would otherwise require an operator to manually shift the transfer pipe into place.
  • the tapered upper surface 38 of the centering device 32 includes a generally flat surface extending from an inner wall 40 of the catalyst transfer port 22 toward the center opening 36.
  • the tapered upper surface 38 may be declined at an angle greater than 10 degrees below the radial axis 42 of the transfer port 22 or transfer pipe 24, by another example between 20 degrees and 70 degrees below the radial axis 42 of the transfer pipe 24 or transfer port 22, by another example between 30 and 60 degrees below the radial axis 42 of the transfer pipe 24 or transfer port 22, and by yet another example between 40 degrees and 50 degrees below the radial axis 42 of the transfer pipe 24 or transfer port 22.
  • radial axis 42 refers to an axis perpendicular to the longitudinal axis 44 of the transfer pipe 24 and/or the catalyst transfer port 22. For simplicity, FIG.
  • the catalyst transfer pipe aligned within the catalyst transfer port 22 such that the longitudinal axes and radial axes are aligned and both designated respectively as 44 and 42.
  • these axes may not be aligned during assembly and/or when the transfer pipe 24 is in an operative position within the transfer port 22.
  • the portion of the tapered upper surface 38 adjacent to the transfer port inner wall 40 is also provided at the declined angle to avoid the catalyst transfer pipe 24 getting caught between the tapered upper surface 38 and the catalyst transfer port inner wall 40 during installation.
  • centering device 32 Other configurations for the centering device 32 are contemplated herein, such as providing a non-circular opening, such as, but not limited to a square, triangular rectangular, trapezoidal shaped centering device having inclined or tapered upper surfaces.
  • the tapered upper surfaces may include surfaces other than flat surfaces as illustrated in FIGS. 3- 6.
  • rounded upper surfaces having a generally declining tangent extending from the catalyst transfer port inner surface to the central opening may also be provided.
  • an imaginary line tangential to the upper surface is greater than 15 degrees below the radial axis 42 of the transfer port 22 in one example, between 30 degrees and 60 degrees below the radial axis of the transfer port 22in another example, and between 40 degrees and 50 degrees below the radial axis of the catalyst transfer port 22in yet another example.
  • inwardly tapered end portions 46 of the one or more catalyst transfer pipes 24 are provided to assist with aligning the catalyst transfer pipes 24 with the center openings 36 of the centering devices 32 so they can be inserted through the center openings 36.
  • the catalyst transfer pipe 24 may include an elongate generally hollow annular tube, although other cross-sectional hollow tube geometries are contemplated herein, such as, but not limited to, square, rectangular, trapezoidal, an triangular.
  • the end portion 46 of the catalyst transfer pipe 24 is tapered at an acute angle relative to the longitudinal axis 44 of the transfer pipe 24 to provide an inclined contact surface 48 for contacting and sliding along the catalyst transfer port 22 and/or the centering ring 34 therein.
  • the tapered end portion 46 has an inwardly tapered surface 48 at an angle of between 10 degrees and 80 degrees relative to the longitudinal axis 44 of the transfer pipe 24, between 30 degrees and 60 degrees relative to the longitudinal axis 44 of the transfer pipe 24 in another example, and between 40 degrees and 50 degrees relative to the longitudinal axis 44 of the transfer pipe 24 in yet another example.
  • an angle of between 10 degrees and 80 degrees relative to the longitudinal axis 44 of the transfer pipe 24 between 30 degrees and 60 degrees relative to the longitudinal axis 44 of the transfer pipe 24 in another example, and between 40 degrees and 50 degrees relative to the longitudinal axis 44 of the transfer pipe 24 in yet another example.
  • the end portion 46 of the catalyst transfer pipe 24 includes a beveled end portion as illustrated in FIG. 3.
  • the tapered end portion 46 of the catalyst transfer pipe 24 does not interfere with the flow and removal of catalyst through the transfer pipe 24, by, for example, creating a restriction to the flow therethrough.
  • a method is provided for assembling a radial-flow reactor 2 as described herein. The method includes lowering the partition assembly 6 with at least one transfer pipe 4 depending therefrom into a bottom portion 30 of the reactor shell. End portions 46 of the transfer pipes 24 are then aligned with openings 26 of the corresponding catalyst transfer ports 22 of the reactor lower shell portion 30.
  • the tapered surfaces 48 may slide along upper edge portions 50 of the catalyst transfer ports 22 to shift the transfer pipes 24 into alignment with the catalyst transfer port openings 26.
  • the partition assembly 6 is further lowered so that the transfer pipe 24 is lowered through the opening 26 of the corresponding catalyst transfer ports 22 until the transfer pipe end portion 46 contacts the upper surface 38 of the centering device 32.
  • the tapered end portion 46 then slides along the centering device upper surface 38 to shift the transfer pipe 24 into alignment with and through the center opening 36 of the centering device 32.
  • catalyst transfer pipe 24 is lowered until the end portion 46 thereof contacts the tapered upper surface 38 of the centering device 32.
  • the catalyst transfer pipe 24 may then be lowered further so that the end portion 46 slides along the tapered surface 38 to shift the transfer pipe 24 into alignment with and through the center opening 36 of the centering device 32.
  • both the centering device 32 and the transfer pipe end portion 46 may be tapered such that the transfer pipe tapered end portion 46 contacts and slides along a tapered upper surface 38 of the centering device 32 to shift the catalyst transfer pipe 24 into alignment with and through the center opening 36, as illustrated in FIG. 6.
  • a first embodiment of the invention is an apparatus for a radial-flow reactor, comprising a generally annular partition assembly; at least one elongate catalyst transfer pipe depending from the partition assembly; and an inwardly tapered end portion of the catalyst transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the catalyst transfer pipe has a generally annular cross-section
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the catalyst transfer pipe has a generally constant inner diameter along a length thereof.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the catalyst transfer pipe tapered end portion is tapered at an angle of between 30 degrees and 60 degrees relative to a longitudinal axis of the catalyst transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the catalyst transfer pipe tapered end portion includes a beveled edge.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, further including a reactor shell portion including a lower catalyst transfer port with an opening therethrough for receiving the transfer pipe and a centering device within the catalyst transfer port opening for centering the catalyst transfer pipe within the catalyst transfer port.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the centering device includes a tapered upper surface extending at a decline from an inner surface of the catalyst transfer port toward the center opening.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the tapered upper surface is declined at an angle of at least 15 degrees below a radial axis of the transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the first embodiment in this paragraph, wherein the tapered upper surface is declined at an angle of between 30 degrees and 60 degrees below a radial axis of the transfer pipe.
  • a second embodiment of the invention is an apparatus for a radial-flow reactor, comprising a reactor shell; a bottom portion of the reactor shell having a catalyst outlet port with an opening therethrough for removal of catalyst; a centering device in the opening of the catalyst outlet port having a center opening for receiving a catalyst transfer pipe therethrough; and a tapered upper surface of the centering device extending at a decline from an inner surface of the catalyst outlet port opening toward the centering device center opening.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, wherein the centering device includes a centering ring with a generally annular shape.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, wherein the centering device includes a generally triangular cross-section and the tapered upper surface includes one side of the triangular cross-section.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, wherein the tapered upper surface extends at a declined angle of at least 15 degrees below a radial axis of the catalyst transfer port.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, wherein the tapered upper surface extends at a declined angle of between 30 degrees and 60 degrees below a radial axis of the catalyst transfer port.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, further comprising a partition assembly and a catalyst transfer pipe depending from the partition assembly for being positioned within the centering device.
  • An embodiment of the invention is one, any or all of prior
  • an embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the second embodiment in this paragraph, wherein the inwardly tapered end portion includes a beveled edge of the catalyst transfer pipe end portion.
  • a third embodiment of the invention is a method for assembling a radial-flow reactor, comprising lowering a partition assembly having at least one transfer pipe depending therefrom into a reactor shell portion; aligning the transfer pipe with an opening of a corresponding catalyst transfer port of the reactor shell portion; lowering the transfer pipe through the opening of the corresponding catalyst transfer port; contacting an end portion of the transfer pipe with a tapered upper surface of a centering device within the opening; and sliding the end portion of the transfer pipe along the tapered surface to shift the transfer pipe into alignment with and through a center opening of the centering device.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein the partition assembly includes a plurality of transfer pipes depending therefrom and further comprising aligning the plurality of transfer pipes with openings of a plurality of corresponding catalyst transfer ports of the reactor shell portion; lowering the transfer pipes through the openings of the corresponding catalyst transfer ports; contacting end portions of the transfer pipes with tapered upper surfaces of a centering devices within the openings; and sliding the end portions of the transfer pipes along the tapered upper surfaces to shift the transfer pipes into alignment with and through center openings of the centering devices.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein contacting the end portion of the depending transfer pipe includes lowering the partition assembly until the end portion contacts the tapered upper surface and continuing to lower the partition assembly so that the transfer pipe end portion slides along the tapered upper surface toward the center opening.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein sliding the end portion of the transfer pipe includes resiliently shifting the transfer pipe relative to the partition assembly so that the transfer pipe aligns with the center opening of the centering device.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein sliding the transfer pipe end portion includes sliding the end portion along the tapered upper surface from an inner wall of the catalyst transfer port of the reactor nozzle openings toward the center opening of the centering device.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein sliding the end portion includes sliding the end portion along the tapered upper surface at a declined angle of at least 15 degrees below a radial axis of the transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein sliding the end portion includes sliding the end portion along the tapered surface at a declined angle of between 30 degrees and 60 degrees below a radial axis of the transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein the tapered upper surface includes a generally flat upper surface extending from the catalyst transfer port inner wall to the center opening of the centering device.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein the tapered upper surface includes a generally rounded surface extending from an inner wall of the catalyst transfer port to the center opening and having a tangent of at least 15 degrees relative to a transfer pipe radial axis between a nozzle inner wall and the center opening of the centering device.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, further comprising contacting a tapered end portion surface of the catalyst transfer pipe end portion with the tapered upper surface of the centering device and sliding the tapered en portion surface of the transfer pipe along the tapered upper surface of the centering device toward the center opening.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein the tapered end portion of the catalyst transfer pipe is tapered at an angle of between 30 degrees and 60 degrees relative to a longitudinal axis of the catalyst transfer pipe.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the third embodiment in this paragraph, wherein contacting the catalyst transfer pipe end portion includes contacting the end portion with a tapered upper surface of an annular centering ring within the catalyst transfer port opening and sliding the catalyst transfer pipe end portion includes sliding the end portion along the tapered upper surface of the centering ring.
  • a fourth embodiment of the invention is a method for assembling a radial-flow reactor system, comprising lowering a partition assembly having a plurality of depending transfer pipes into a reactor shell portion; aligning the plurality of depending transfer pipes with openings of a plurality of corresponding catalyst transfer ports of the reactor shell portion; lowering the plurality of depending transfer pipes through the openings of the corresponding catalyst transfer ports; contacting tapered end portions of the plurality of depending transfer pipes with centering devices within the openings; and sliding the tapered end portions of the transfer pipes along surfaces of the centering devices to shift the transfer pipes through center openings of the centering devices.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the fifth embodiment in this paragraph, wherein sliding the tapered end portions includes sliding tapered surfaces of the tapered end portions along tapered upper surfaces of the centering devices to shift the end portions of the plurality of depending transfer pipes to align with the center openings of the centering devices.
  • An embodiment of the invention is one, any or all of prior embodiments in this paragraph up through the fifth embodiment in this paragraph, wherein lowering the plurality of depending transfer pipes includes contacting a tapered surface of a tapered end portion of one of the plurality of depending transfer pipes with an upper edge portion of the corresponding catalyst transfer port and sliding the tapered surface along the upper edge portion to align the catalyst transfer pipe with the catalyst transfer port opening during lowering the transfer pipe through the opening.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Un appareil pour un réacteur à écoulement radial selon diverses approches comprend un tuyau de transfert de catalyseur ayant une partie d'extrémité effilée vers l'intérieur. Selon diverses approches, un orifice de transfert de catalyseur du réacteur peut comprendre un dispositif de centrage ayant une surface effilée supérieure pour faciliter l'assemblage du réacteur. Un procédé selon divers aspects comprend l'assemblage d'un réacteur à écoulement radial par l'installation d'un tuyau de transfert de catalyseur par un orifice de transfert de catalyseur.
PCT/US2014/031675 2013-03-28 2014-03-25 Appareil pour un réacteur à écoulement radial et son procédé d'assemblage WO2014160680A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13/852,640 2013-03-28
US13/852,596 US9050571B2 (en) 2013-03-28 2013-03-28 Apparatus for a radial-flow reactor and method for assembly thereof
US13/852,640 US20140290061A1 (en) 2013-03-28 2013-03-28 Apparatus for a Radial-Flow Reactor and Method for Assembly Thereof
US13/852,596 2013-03-28

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN108136354A (zh) * 2015-10-06 2018-06-08 海德鲁基尼斯技术有限公司 用于使载体介质脱氢的反应器装置
WO2020072859A1 (fr) 2018-10-05 2020-04-09 Uop Llc Appareil et procédé pour convertir des hydrocarbures

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US4421723A (en) * 1982-07-20 1983-12-20 Chevron Research Company Method and apparatus for supporting radial reactor centerpipes to accommodate thermal cycling
EP0483975A1 (fr) * 1990-10-03 1992-05-06 Nagaoka International Corporation Dispositif et procédé pour tenir un catalyseur dans un réacteur à écoulement radial
US20040245778A1 (en) * 2001-11-09 2004-12-09 Adams Robert M. Pipe coupling system having an anti-reversing locking ring
WO2004113777A2 (fr) * 2003-06-26 2004-12-29 Jong Seok Park Raccord pour tubes et bague de retenue associée
KR20100047247A (ko) * 2007-08-02 2010-05-07 뱁콕 앤드 윌콕스 파워 제네레이션 그룹, 인크. 연소에서 질소산화물 배출을 제어하는 저온 이동층 촉매 반응기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421723A (en) * 1982-07-20 1983-12-20 Chevron Research Company Method and apparatus for supporting radial reactor centerpipes to accommodate thermal cycling
EP0483975A1 (fr) * 1990-10-03 1992-05-06 Nagaoka International Corporation Dispositif et procédé pour tenir un catalyseur dans un réacteur à écoulement radial
US20040245778A1 (en) * 2001-11-09 2004-12-09 Adams Robert M. Pipe coupling system having an anti-reversing locking ring
WO2004113777A2 (fr) * 2003-06-26 2004-12-29 Jong Seok Park Raccord pour tubes et bague de retenue associée
KR20100047247A (ko) * 2007-08-02 2010-05-07 뱁콕 앤드 윌콕스 파워 제네레이션 그룹, 인크. 연소에서 질소산화물 배출을 제어하는 저온 이동층 촉매 반응기

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108136354A (zh) * 2015-10-06 2018-06-08 海德鲁基尼斯技术有限公司 用于使载体介质脱氢的反应器装置
CN108136354B (zh) * 2015-10-06 2021-12-28 海德鲁基尼斯技术有限公司 用于使载体介质脱氢的反应器装置
WO2020072859A1 (fr) 2018-10-05 2020-04-09 Uop Llc Appareil et procédé pour convertir des hydrocarbures
EP3860751A4 (fr) * 2018-10-05 2022-01-19 Uop Llc Appareil et procédé pour convertir des hydrocarbures

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