Catalytic reactor with a floating particle catcher

Abstract

The present invention relates to a catalytic reactor comprising a floating particle catcher unit and particle capture surface that extracts particles from a fluid flow stream above a catalyst bed, whereby at least a portion of the particles settle on the particle capture surface instead of clogging the catalyst bed.

Description

Technical Field

[0001] The present invention relates to a catalytic chemical reactor involving particle separation. More specifically, the present invention relates to a reactor having a particle separator that is supported by a catalyst bed within the reactor and thus requires no support structure that is very easy to install and is fixed to the reactor. This reactor may be a downflow catalytic reactor including a packed bed of vertically stacked granular catalyst materials. This type of reactor is used in the petroleum and chemical processing industries for various catalytic reactions such as sulfur and nitrogen conversion (HDS / HDN); hydrogenation of olefins (HYD) and aromatic compounds (hydrodearomatization - HDA), metal removal (hydrodemetallization - HDM), oxygen conversion (hydrodeoxygenation - HDO), and hydrocracking (HC). Alternatively, the reactor is a radial converter and requires fixing deck members to the reactor. This reactor has a radial flow across the packed bed of the catalyst material and is commonly used in the petroleum and chemical processing industries to carry out catalytic reactions such as catalyst reforming and ammonia synthesis.

Background Art

[0002] Background of the Invention The separation and classification of particles are well - explored needs in the chemical, pharmaceutical, mineral, and food industries. Particle classification may be required in industrial processes to improve the quality of certain products, while on the other hand, particle separation may be required to purify fluid streams or avoid problems in process equipment.

[0003] Sometimes, particles may intentionally be present in the process stream. This is the case, for example, in combustion processes based on pulverized fuel, or in the manufacture of pharmaceuticals or specialty chemicals using powder technology. In other cases, the presence of particles is unintentional. This is the case, for example, in the streams of some refineries, the effluent from fluidized beds, or the product streams from Fischer Trofispsch reactors. Particles have various origins and can be part of the raw materials or other reaction streams, or can be generated and recovered within the process equipment, for example, as erosion products. Particles can be solid or liquid and can have organic properties such as char, coke, and gum, or inorganic properties such as salts, corrosion / erosion remnants as iron components, or remnants of catalyst particles. They can also be liquid, such as aqueous mist, and contain living impurities in the form of bacteria. Their shape and size can also vary widely, from spherical to flaky, and from millimeters to less than a few microns. When particles are undesirable in downstream processes, often most of these particles are removed prior to sensitive equipment by filters or other suitable particle separation techniques known in the art. However, in certain processes, problems can arise and become more severe over time, for example, when erosion or corrosion is involved. In some cases, it may actually be impossible to install particle removal equipment as an independent unit operation prior to delicate equipment.

[0004] One specific example of the problems caused by particles is the hydrotreating of naphtha. The feed to the hydrotreating reactor is sometimes filled with particles. When the feed containing particles is introduced into the hydrotreating reactor, the particles tend to rapidly attach to the grading and the catalyst. Therefore, the reactor may require frequent skimming of the bed-affected layer due to, among other things, an increase in the pressure drop within the reactor. It is not uncommon to do this once every 5 - 6 months, or even as frequently as once every 2 - 3 months for skimming.

[0005] The characterization of particles affecting naphtha water treatment is hardly possible. In fact, the particles depend on naphtha raw materials or process-related problems (rust, salts, gums, etc.). The collection of particles by flowing down is generally not available. Thus, the evaluation of particle characteristics depends on post-analysis affected by great uncertainties due to particle aggregation and oxidation.

[0006] Similarly, process gases resulting from the regeneration of FCC (fluid catalytic cracking) catalysts often contain catalyst particles and catalyst fragments. Such gases are most commonly sent to a sulfur recovery unit, which is a Claus plant, or a WSA plant, to recover sulfur as elemental sulfur or to recover it as concentrated sulfuric acid. These are fixed-bed catalytic reactors and are prone to clogging when exposed to feedstocks containing particles. The particles generally present at the outlet of the FCC regenerator are generally in the size range of 2 to 20 microns or less.

[0007] When installing a particle capture device in a catalytic chemical reactor, it is often a problem to support the particle capture device because there may be no support rings, brackets, or other supportable components in the catalytic chemical reactor where the particle capture device needs to be installed. In particular, when retrofitting an existing catalytic chemical reactor, installing a support in the reactor often does not fall within the options because it requires welding or drilling holes for bolts and other fixtures. Therefore, there is a need for a catalytic chemical reactor including a particle capture device, in which the installation and support of the particle capture device do not require welding, drilling, or other potential weakening of the chemical reactor structure.

[0008] US10159950 discloses a catalytic reactor including a particle separator that extracts particles from the fluid flow above the reactor interior by means of realizing a radially outward and upward S-curved flow path of the fluid flow, whereby the particles can be extracted and sedimented in a collection section having low flow activity and turbulent flow.

[0009] US2009177023 discloses a filtration tray for a fixed bed reactor having co-current downflow of gas and liquid.

[0010] This device can capture plugging particles contained in the liquid feed supplied to a reactor that functions in a co-current downflow mode of gas and liquid, using a specific distribution tray made of a filtration medium. This device is particularly suitable for the selective hydrogenation of feeds containing acetylene compounds and diene compounds.

[0011] EP0358923 discloses a method and device for purifying a raw material gas derived from the gasification of solids. In the process and device for purifying the raw material gas from solid gasification containing granular and dusty solid particles, it is solved by means of entering a downstream cooling device after removing solid particles of most sizes from the raw material gas. This is achieved by passing the raw material gas linearly in the direction of the gas holding space in the first purification stage from the gasification zone, thereby precipitating the granular solid particles at the bottom of the gas holding space, and then in the second purification stage, deflecting the partially purified raw material gas laterally from the gas holding space, changing it to at least a three-fold speed reduction, and after the gas is deflected, passing it through a solid filter substantially in the vertical direction, where the dusty solid particles are removed from the raw material gas.

Prior Art Documents

Patent Documents

[0012]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0013] Despite the above-known technologies, regardless of any particulate impurities in the inlet fluid stream to the catalytic chemical reactor, it is necessary to ensure the effective long-term operation of the catalytic chemical reactor, without the need for the installation of a support within the catalytic chemical reactor that could weaken the structure of the catalytic chemical reactor, and if possible, further be inexpensive to manufacture and install, and easy and quick to install and operate. There is a need for a catalytic chemical reactor equipped with a particle separator and a particle trap.

Means for Solving the Problem

[0014] Summary of the Invention The present invention relates to a novel catalytic chemical reactor equipped with a catalyst bed, including a particle separation device for removing particles and impurities from the inlet process gas before the inlet process gas reaches the catalyst bed and can be clogged.

[0015] According to the present invention, particles are separated from the flowing fluid stream by being captured in a sedimentation region. The capture of particles is obtained by applying an S-shaped flow to the fluid stream within the particle separator. When the fluid stream follows an S-shaped flow path, the particles are flung outward and downward by gravity and may settle in a part of the separator where the activity of the fluid stream is low.

[0016] The particle separator is one or more particle trap units installed within the catalytic reactor and is floating supported on the catalyst bed. This means that it will be supported by the catalyst bed supported by the reactor structure and does not need to be supported by a structure attached to the reactor structure. The particle trap unit includes a base portion having an upper surface, a bottom surface, a screen, and a particle trap unit outlet. The bottom surface of the base portion is adapted for floating support on the catalyst bed and has a surface area large enough to carry the particle trap unit on the catalyst without sinking or braking on the catalyst particles and is geometrically and structurally stable.

[0017] The floating particle trap unit further comprises a channel including a particle trap unit inlet for process gas located at the upper part of the channel. This channel is mechanically connected to the base part, and the process gas flows through the particle trap unit inlet, downward through the channel, from the channel to the base part, and is evenly distributed from the base part to the catalyst bed through a particle trap unit outlet provided together with a screen. The screen covering the outlet of the particle trap unit has an opening with a total area allowing free flow of the process gas from the particle trap unit to the catalyst bed, but having a maximum opening distance smaller than the size of the catalyst pellets. The particle trap unit may be supported floating above the catalyst bed or may be partially embedded in the catalyst bed as long as the inlet of the particle trap unit is arranged above the upper surface of the catalyst bed. The particle trap surface arranged above and in the vicinity of the upper part of the catalyst bed ensures that the particles separated from the process gas are reliably captured and held transparently above the catalyst bed when they settle in the zone between the channels and below the particle trap unit inlet. The particles may rest on the particle trap surface and be held there until removed during operation, while the process gas can still flow freely through the particle trap device unit and be evenly distributed to the catalyst bed. The particle trap surface may be a sheet material or a mat, such as a glass filter mat, made of any suitable material that conforms to the inner circumference of the catalytic reactor above the catalyst bed and has an opening allowing the channel to project upward through the particle trap surface. Thus, compared to known means, this provides a simple and inexpensive catalytic reactor for manufacturing a floating particle trap device unit, and further, it is very easy to install, can be lifted by hand, and very importantly, it can provide a catalytic reactor that does not require any structural support to fit the catalytic reactor.

[0018] In one embodiment of the present invention, the channel and the base portion are separate units that are detachably connected to each other by one or more channel attachment members (attachments). The channel attachment members may be attachment members of any known technique such as screws and bolts, and may be customized and quickly detachable attachment members that ensure easy and rapid installation and maintenance by requiring only minimal tools. By providing the floating particle trap unit as a separate unit, each component has a lower weight than the entire unit, ensuring ease of handling. Furthermore, it can be ensured that installation through an existing manway or other opening in the catalytic reactor is possible. Also, the base portion can comprise a plurality of components. In one embodiment, it includes a base portion main member (main member) connected to the channel and one or more base portion sub-members (sub-members) connected to the base portion main member. The members of the base portion can be connected by one or more sub-member attachment members, which may be any known or adapted connecting means. Also, this may be a hinge connection, whereby the members of the base portion need not be completely detached for installation, but can simply be folded by bending over the hinge connection to minimize the outer dimensions of the base portion during installation. All surfaces of the said portions can include a screen that allows a free and evenly distributed flow of process gas from the floating particle trap unit to the catalyst bed. As mentioned, the screen should include openings of different dimensions depending on the application, as the openings should be dimensioned to ensure that catalyst pellets do not enter the particle trap unit through the screen. The base portion and the channel may have many different shapes and surfaces, and these surfaces may be bent, flat, or connected at different angles. The following drawings merely illustrate some embodiments of the present invention.

[0019] Furthermore, to further improve ease of handling and installation, the particle trap unit is a particle trap UnitIt can be equipped with lifting means. They can have any known shape, handle, or lug to facilitate lifting by hand or with a light lifting aid. As already mentioned, the catalytic reactor can include a floating particle trap unit. The particle trap unit may be arranged at the upper part of the reactor or, if the upper part of the reactor is dome-shaped, it may be arranged inside the dome. When there are multiple floating particle trap units, they can be arranged in any pattern so as to be most suitable for evenly distributing the inside of the reactor, the function of the particle trap, and the process gas. In one embodiment of the present invention, the floating particle trap units are arranged in an even pattern around the center line of the catalytic reactor and around the central inlet diffuser. In some embodiments, they are arranged inside the catalytic reactor and serve to distribute the process gas from the catalytic reactor inlet to the upper part of the catalytic reactor in an appropriate manner. The multiple floating particle trap units may be connected by a dedicated particle trap fixture, or by a beam or sheet connection between each of the floating particle trap units, or may be freely positioned and supported at a predetermined position only by the catalyst bed. One floating particle trapping device unit or multiple units can cover an area of the catalyst bed exceeding 30% of the total area of the catalyst bed. According to one embodiment, the position of the floating particle trapping device unit is further stabilized by downwardly projecting fins fixed to the bottom surface of the base portion. These fins can also serve the purpose of standing the floating particle trap unit when supported on a hard surface before installation. The catalytic reactor may be a hydrogenation reactor in a specific embodiment.

[0020] 1. A catalytic reactor comprising a catalyst bed, wherein the reactor includes at least one floating particle trap unit in which a particle trap and a fluid distributor are integrated and which is adapted to capture particles and impurities from the process fluid entering the catalytic reactor before reaching the catalyst bed and evenly distribute the process fluid to the upper part of the catalyst bed. The floating particle trap unit is · A base portion top surface, a base portion bottom surface adapted to the floating support on the catalyst bed, a screen, and a base portion comprising a particle trap unit outlet · A channel comprising a particle trap unit inlet located at the upper part, and · A particle capture surface disposed above and in the vicinity of the upper part of the catalyst bed adapted to capture and support the particles and impurities including wherein the channel is mechanically connected to the base portion and is adapted to allow fluid to flow from the particle trap unit inlet, through the channel, and further through the base portion to evenly distribute the process fluid to the catalyst bed through the particle trap unit outlet covered by the screen, and the floating particle trap unit is supported by the catalyst bed, the catalytic reactor

[0021] 2. The catalytic reactor according to feature 1, wherein the base portion is embedded in the catalyst bed

[0022] 3. The catalytic reactor according to feature 1 or 2, wherein the particle capture surface is a sheet or mat disposed above the catalyst bed and above the base portion, or a sheet or mat disposed above the catalyst bed and connected to the base portion

[0023] 4. The catalytic reactor according to feature 1, wherein the particle capture surface is a mat disposed above the catalyst bed and above the base portion having a cutout through which the channel passes, whereby the mat covers the entire surface of the catalyst bed and the base portion except for the region where the channel protrudes through the cutout of the mat

[0024] 5. The catalytic reactor according to any one of features 1 to 4, wherein the channel portion and the base portion are separate units detachably connected to each other by at least one channel attachment

[0025] 6. The catalytic reactor according to any one of features 1 to 5, wherein the base portion includes a base portion main member connected to the channel and one or more base portion sub-members connected to the base portion main member.

[0026] 7. The catalytic reactor according to feature 6, wherein the base portion sub-member is connected to the base portion main member by at least one sub-member attachment means.

[0027] 8. The catalytic reactor according to feature 7, wherein the sub-member attachment includes at least one detachable hinge, enabling the base portion to be folded for the installation and use of the particle separation catalytic reactor.

[0028] 9. The catalytic reactor according to any one of features 1 to 8, wherein the bottom surface of the base portion includes the screen, or the upper surface of the base portion includes the screen, or both the upper surface and the bottom surface of the base portion include the screen.

[0029] 10. The catalytic reactor according to any one of features 1 to 9, wherein the base portion includes at least one base portion side surface, and the base portion side surface includes the screen.

[0030] 11. The catalytic reactor according to any one of features 1 to 10, wherein the floating particle catcher unit includes particle catcher lifting means.

[0031] 12. The catalytic reactor according to any one of features 1 to 11, including a plurality of floating particle catcher units.

[0032] 13. The catalytic reactor according to feature 12, wherein the floating particle catcher units are arranged in an even pattern around the center line of the particle separation catalytic reactor.

[0033] 14. The catalytic reactor according to any one of features 1 to 13, including a plurality of floating particle collector units, and the total area of the bottom surface of the base portion including the screen exceeds 30% of the total cross-sectional area of the catalyst bed.

[0034] 15. The catalytic reactor according to any one of features 1 to 14, wherein the screen includes a plurality of openings adapted to prevent the catalyst from entering the floating particle trap unit and having a shape such that the catalyst is prevented from entering the floating particle trap unit.

[0035] 16. The catalytic reactor according to any one of features 1 to 15, wherein the screen includes a plurality of openings having openings of at most 10 mm, preferably at most 5 mm, and more preferably at most 3 mm on the surface of the screen.

[0036] 17. The catalytic reactor according to any one of features 1 to 16, wherein the bottom surface of the base portion is provided with downwardly protruding fins for stabilizing the floating particle trap unit during installation and manufacture.

[0037] 18. The catalytic reactor according to any one of features 1 to 17, wherein the reactor has a domed upper portion and the floating particle trap unit is located below or inside the lower portion of the dome.

[0038] 19. The catalytic reactor according to any one of features 1 to 18, wherein the catalytic reactor is a hydrogenation reactor. The present invention includes the following items. [Item 1] A catalytic reactor comprising a catalyst bed, the reactor comprising at least one floating particle trap unit in which a particle trap and a fluid distributor are integrated, adapted to capture particles and impurities from a process fluid entering the catalytic reactor before reaching the catalyst bed and to evenly distribute the process fluid over the upper part of the catalyst bed, The floating particle trap unit comprises · a base part upper surface, a base part bottom surface adapted to a floating support on the catalyst bed, a screen, and a base part with a particle trap unit outlet, · a channel with a particle trap unit inlet located at the upper part, and · a particle capture surface arranged above and in the vicinity of the upper part of the catalyst bed adapted to capture and support the particles and impurities including wherein the channel is mechanically connected to the base part and is adapted to allow fluid to flow from the particle trap unit inlet, through the channel, and further through the base part that evenly distributes the process fluid to the catalyst bed through the particle trap unit outlet covered by the screen, the floating particle trap unit being supported by the catalyst bed, the catalytic reactor. [Item 2] The catalytic reactor according to item 1, wherein the base part is embedded in the catalyst bed. [Item 3] The catalytic reactor according to item 1 or 2, wherein the particle capture surface is a sheet or mat arranged above the catalyst bed and above the base part, or a sheet or mat arranged above the catalyst bed and connected to the base part. [Item 4] The catalytic reactor according to item 1, wherein the particle capture surface is a mat arranged above the catalyst bed and above the base part with a cutout through which the channel passes, whereby the mat covers the entire surface of the catalyst bed and the base part except for the area where the channel projects through the cutout of the mat. [Item 5] The catalytic reactor according to any one of items 1 to 4, wherein the channel part and the base part are separate units detachably connected to each other by at least one channel mounting member. [Item 6] The catalytic reactor according to any one of items 1 to 5, wherein the base part includes a base part main member connected to the channel and one or more base part sub - members connected to the base part main member. [Item 7] The catalytic reactor according to item 6, wherein the base portion sub-member is connected to the base portion main member by at least one sub-member mounting member. [Item 8] The catalytic reactor according to item 7, wherein the sub-member mounting member includes at least one detachable hinge, enabling the base portion to be folded for the installation and use of the particle separation catalytic reactor. [Item 9] The catalytic reactor according to any one of items 1 to 8, wherein the bottom surface of the base portion includes the screen, or the upper surface of the base portion includes the screen, or both the upper surface and the bottom surface of the base portion include the screen. [Item 10] The catalytic reactor according to any one of items 1 to 9, wherein the base portion includes at least one base portion side surface, and the base portion side surface includes the screen. [Item 11] The catalytic reactor according to any one of items 1 to 10, wherein the floating particle catcher unit includes a particle catcher lifting means. [Item 12] The catalytic reactor according to any one of items 1 to 11, including a plurality of floating particle catcher units. [Item 13] The catalytic reactor according to item 12, wherein the floating particle catcher units are arranged in an even pattern around the center line of the particle separation catalytic reactor. [Item 14] The catalytic reactor according to any one of items 1 to 13, including a plurality of floating particle collector units, and the total area of the bottom surface of the base portion including the screen exceeds 30% of the total cross-sectional area of the catalyst bed. [Item 15] The catalytic reactor according to any one of items 1 to 14, wherein the screen includes a plurality of openings adapted to prevent the catalyst from entering the floating particle catcher unit. [Item 16] The catalytic reactor according to any one of items 1 to 15, wherein the screen includes a plurality of openings having openings of up to 10 mm, preferably up to 5 mm, and preferably up to 3 mm on the surface of the screen. [Item 17] The catalytic reactor according to any one of items 1 to 16, wherein the bottom surface of the base portion is provided with downwardly protruding fins for stabilizing the floating particle catcher unit during installation and manufacture. [Item 18] The catalytic reactor according to any one of items 1 to 17, wherein the reactor has a domed upper portion, and the floating particle catcher unit is located below or inside the lower portion of the dome. [Item 19] The catalytic reactor according to any one of items 1 to 18, wherein the catalytic reactor is a hydrogenation reactor.

[0039] Brief Description of the Drawings The present invention is further illustrated by the accompanying drawings showing examples of embodiments of the present invention.

Brief Description of the Drawings

[0040]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

[0041] Position number 01. Floating particle trap unit (integrated particle trap and fluid distributor) 02. Base portion 03. Channel 04. Main member of the base portion 05. Sub-member of the base portion 06. Base portion bottom surface 07. Base portion top surface 08. Base portion side surface 09. Screen 10. Mounting member of the channel 11. Mounting member of the sub-member 12. Particle trap unit inlet 13. Particle trap unit outlet 14. Channel movement opening 15. Base portion movement opening 16. Particle trap unit lifting means 17. Inlet diffuser 18. Particle trap fixture

[0042] Description of the Figures Embodiments of the present invention will be described in more detail below with reference to the figures shown in FIGS. 1-5.

[0043] In FIG. 1, the catalytic reactor (not shown) consists of a hollow upper section into which the process gas enters. In this hollow space supported by a catalyst bed (not shown), a particle separation and floating particle catcher unit 01 can be installed, providing particle separation, a particle catcher, and an even process fluid distribution to the catalyst bed without requiring additional space in the catalytic reactor and without requiring structural support, welding, or drilling in the catalytic reactor. Each of the floating particle catcher units comprises a base portion 02 and a channel 03. For ease of installation, the base portion consists of two parts, a base portion main member 04 and a base portion sub-member 05. The channel is structurally connected to the base portion, more specifically to the base portion main member, by a channel mounting member 10, and the channel also has a fluid connection to the base portion, whereby the process fluid can flow from the particle catcher unit inlet 12, through the channel, downward, and further to the base portion. The floating particle catcher unit is provided with two particle catcher unit lifting means 16, whereby it can be more easily handled during operation and installation. In this embodiment, each of the six floating particle catcher units is fixed to a centrally located particle catcher fixture 18, whereby the floating particle catcher units can be stabilized in an even pattern around the center line of the catalytic reactor. To ensure that most of the particles entering the catalytic reactor with the process fluid do not clog by passing through the catalyst bed, a particle capture surface (not shown) is arranged above the surface of the catalyst bed and the base portion of the floating particle catcher unit, having openings adapted to fit around the channels, through which they project, while the base portion remains below the particle capture surface.

[0044] The inlet diffuser 17 shown in Fig. 5 is arranged at the center of the upper part of the catalytic reactor, connected to the process fluid inlet of the catalytic reactor, adapted to allow the process fluid to pass evenly from the catalytic reactor inlet to the central point above the catalyst bed, and then flow from there to the inlet of the particle trap unit while reducing the flow rate. When the flow of the process fluid decreases, some of the particles in the process fluid settle on the particle capture surface at a density higher than that of the process fluid itself before the process fluid enters the floating particle trap unit, and are evenly distributed through the base part and via the catalyst bed.

[0045] The features providing this effect can be seen in more detail in Figs. 2, 3 and 4. In Figs. 2, 3 and 4, the channel movement opening 14 (not visible under the channel) and the base part movement opening 15 provide a fluid connection between the channel and the base part, and a screen 09 forming the particle trap unit Outlet 13 is provided on the base part bottom surface 06 and the base part side surface 08. Thereby, it shows how the process fluid enters the floating particle trap unit through the particle trap unit inlet, flows into the base part through the hollow part inside the channel and through the channel - and base part movement openings, and is evenly distributed to the catalyst bed through the large surface of the screened particle trap unit outlet. The base part also has a base part upper surface 07, on which the channel is structurally attached by a channel mounting member. On the base part bottom surface, a sub - member mounting member 11 is arranged, providing a hinge connection between the base part main member and the sub - member. Thus, during installation, the main member and the sub - member can be folded to dimensions with approximately twice the thickness and half the length when properly installed, thereby making it easier to pass through the opening of the catalytic reactor during installation.

Claims

1. A catalytic reactor comprising a catalyst bed, said reactor comprising at least one floating particle trap unit 01 for capturing particles and impurities from the process fluid entering the catalytic reactor before reaching the catalyst bed and evenly distributing the process fluid over the upper part of the catalyst bed, wherein said floating particle trap unit 01 - an inlet diffuser 17 disposed at the center of the upper part of the catalytic reactor, - a base portion 02 embedded in the catalyst bed, having an upper surface 07 of the base portion, a bottom surface 06 of the base portion, a screen 09, and a particle trap unit outlet 13, - a channel 03 having a particle trap unit inlet 12 located above the upper part of the channel 03, and - a particle capture surface for capturing said particles and impurities and comprising wherein the capture of particles is obtained by applying an S-shaped flow to the fluid flow within said floating particle trap unit 01, the particle capture surface is a sheet or mat disposed over the catalyst bed and over the base portion 02, or a sheet or mat disposed over the catalyst bed and connected to the base portion 02, wherein a channel moving opening 14 and a base portion moving opening 15 provide a fluid connection between the channel 03 and the base portion 02, and a screen 09 forming the particle trap unit outlet 13 is provided on the bottom surface 06 of the base portion and the side surface 08 of the base portion, whereby the process fluid enters the floating particle trap unit 01 through the particle trap unit inlet 12, flows through the channel 03 into the base portion 02, and is evenly distributed over the catalyst bed through the surface of the screened particle trap unit outlet 13, said catalytic reactor.

2. The catalytic reactor according to claim 1, wherein the particle capture surface is a surface for capturing and holding particles separated from the process gas on the catalyst bed when the particles separated from the process gas settle in the zones between the channels 03 and below the particle trap unit inlet 12.

3. The catalytic reactor according to claim 1, wherein the particle capture surface is a mat disposed over the catalyst bed and over the base portion 02 having cutouts through which the channel 03 passes, whereby the mat covers the entire surface of the catalyst bed and the base portion 02 except for the regions where the channel 03 projects through the cutouts of the mat.

4. The catalytic reactor according to any one of claims 1 to 3, wherein the channel 03 portion and the base portion 02 are separate units detachably connected to each other by at least one channel mounting member.

5. The catalytic reactor according to any one of claims 1 to 4, wherein the base portion 02 includes a base portion main member connected to the channel 03 and one or more base portion sub-members connected to the base portion main member.

6. The catalytic reactor according to claim 5, wherein the base portion sub-member is connected to the base portion main member by at least one sub-member mounting member.

7. The catalytic reactor according to claim 6, wherein the sub-member mounting member includes at least one detachable hinge 11, enabling the base portion 02 to be folded for installation and use of the particle separation catalytic reactor.

8. The catalytic reactor according to any one of claims 1 to 7, wherein the base portion bottom surface 06 includes the screen 09, or the base portion upper surface includes the screen 09, or both the base portion upper surface and the base portion bottom surface 06 include the screen 09.

9. The catalytic reactor according to any one of claims 1 to 8, wherein the base portion 02 includes at least one base portion side surface, and the base portion side surface includes the screen 09.

10. The catalytic reactor according to any one of claims 1 to 9, wherein the floating particle trap unit 01 includes a particle trap unit lifting means 16.

11. The catalytic reactor according to any one of claims 1 to 10, including a plurality of floating particle trap units 01.

12. The catalytic reactor according to claim 11, wherein the floating particle trap units 01 are arranged in a uniform pattern around the center line of the particle separation catalytic reactor.

13. The catalytic reactor according to any one of claims 1 to 12, including a plurality of floating particle collection units, and the total area of the base portion bottom surface 06 including the screen 09 exceeds 30% of the total cross-sectional area of the catalyst bed.

14. The catalytic reactor according to any one of claims 1 to 13, wherein the screen 09 includes a plurality of openings having a maximum opening of 10 mm on the surface of the screen 09.

15. The catalytic reactor according to any one of claims 1 to 14, wherein the catalytic reactor is a hydrogenation reactor.

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