A catalytically structured packing for hydrogen-water isotope catalytic exchange and a method for preparing the same

Abstract

The application provides a catalytic regular packing structure for hydrogen-water isotope catalytic exchange and a preparation method thereof. The catalytic regular packing structure is divided into an embedded type and an integrated type. The hydrophilic packing of the embedded type includes at least two layers of hydrophilic packing sheets as a supporting skeleton; the hydrophobic catalyst is a granular, strip-shaped, pellet, cylindrical, Raschig ring or Michiyori ring hydrophobic catalyst particle, and the hydrophobic catalyst particle is at least partially arranged between adjacent hydrophilic packing sheets. The hydrophobic catalyst of the integrated type is a hydrophobic catalyst plate, and the hydrophilic packing and the hydrophobic catalyst plate are alternately placed according to the use ratio. The wall flow ring is arranged at the outer periphery of the hydrophilic packing; the hoop is arranged at the outer periphery of the wall flow ring, and the hydrophilic packing and the hydrophobic catalyst are wrapped and reinforced. The application provides a high-efficiency catalytic regular packing structure, which can effectively combine the hydrophobic catalyst and the hydrophilic packing, fix the gas phase channel and make the liquid phase uniformly dispersed, and can effectively avoid the amplification effect of the packing.

Description

Technical Field

[0001] This invention relates to the field of isotope separation technology, and more specifically to a catalytically structured packing structure for hydrogen-water isotope catalytic exchange. Background Technology

[0002] The efficient and safe treatment of tritium-containing wastewater is a key technological bottleneck restricting the development of inland nuclear power in my country and affecting the safe operation of nuclear facilities. Meanwhile, tritium extraction from heavy water has significant strategic and economic value for ensuring the performance of heavy water reactors and acquiring valuable military resources. In mainstream technologies for water detritiumization (or heavy water tritium extraction), such as liquid-phase catalytic exchange (LPCE) and combined electrolysis / catalytic exchange (CECE), the catalytic packing is the core component for achieving efficient exchange of hydrogen isotopes between the gas and liquid phases, and its performance directly determines the efficiency and economy of the entire process.

[0003] This process requires the synergistic effect of hydrophilic packing and hydrophobic catalyst: liquid water undergoes a gas-liquid phase conversion on the hydrophilic packing, transforming into water vapor; and hydrogen isotope exchange occurs between water vapor and H2 on the active metal surface of the hydrophobic catalyst. To achieve this process, major nuclear research institutions worldwide generally use random packing, where granular or strip-shaped hydrophobic catalysts (such as Pt / SDB particles) are mixed or layered with hydrophilic packing of specific shapes (such as θ rings, Dixon rings, etc.) in a catalytic exchange column. During actual operation, the random packing has random gas-phase fluid channels, and liquid-phase flow is prone to wall flow and channeling, leading to problems such as large pressure drop within the column, catalyst active component shedding and loss, and scale-up effects.

[0004] Therefore, developing a novel catalytic packing material that can overcome all the above-mentioned defects is of great significance for promoting the engineering application of water detritium removal technology.

[0005] Meanwhile, this technology can also be coupled with the current renewable energy electrolysis to produce green hydrogen, to obtain high-concentration deuterium-containing water as a byproduct, fully utilize the added value of the green hydrogen industry, and significantly improve the economics of hydrogen production. Summary of the Invention

[0006] This invention addresses the technical problems of existing random packing materials in engineering applications, such as large pressure drop, easy wall flow and channeling, easy shedding and loss of active catalyst components, and scale-up effects, as well as the problems of high precious metal usage and high one-time cost. It provides a catalytically structured packing structure for hydrogen-water isotope catalytic exchange and its preparation method.

[0007] The technical method of the present invention is as follows: A catalytic structured packing for hydrogen-water isotope catalytic exchange includes an embedded structured packing comprising a hydrophilic packing, a hydrophobic catalyst, a flow wall, and a clamp. The hydrophilic packing comprises at least two layers of hydrophilic packing sheets as a supporting framework. The hydrophobic catalyst comprises hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings, or star rings, wherein the hydrophobic catalyst particles are at least partially disposed between adjacent hydrophilic packing sheets. The flow wall is disposed on the outer periphery of the hydrophilic packing. The clamp is disposed on the outer periphery of the flow wall, encapsulating and reinforcing the hydrophilic packing and the hydrophobic catalyst.

[0008] Optionally, the hydrophilic packing sheet is a hydrophilic corrugated packing sheet or a hydrophilic flat plate packing sheet. When the hydrophilic packing sheet is a hydrophilic flat plate packing sheet, a hydrophilic corrugated packing sheet is also provided between the two layers of hydrophilic flat plate packing sheets.

[0009] Optionally, the hydrophilic filler material is selected from stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, silicon carbide (SiC), special plastics, or one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, and special plastics that have undergone hydrophilic treatment; the hydrophobic catalyst particles include a support and an active component loaded on the support, the support including one or more of styrene-divinylbenzene copolymer (SDB), carbon materials, molecular sieves, and metal-organic framework compounds (MOFs), and the active component including one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

[0010] This invention also provides a method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange, comprising the following steps: S1. Determine the configuration ratio and distribution area of ​​hydrophobic catalyst particles among hydrophilic packing sheets based on the target catalytic exchange efficiency. S2. Prepare hydrophilic filler sheets and hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings or star rings; S3. According to the distribution area, embed and fix the hydrophobic catalyst particles between at least two layers of hydrophilic filler sheets; S4. Install wall flow rings and clamps to wrap and reinforce the area.

[0011] This invention also provides a catalytically structured packing structure for hydrogen-water isotope catalytic exchange. The integrated structured packing includes a hydrophilic packing material, a hydrophobic catalyst, a flow wall ring, and a clamp. The hydrophilic packing material is a hydrophilic packing sheet; the hydrophobic catalyst is a hydrophobic catalyst plate; the hydrophilic packing sheet and the hydrophobic catalyst plate together serve as a supporting framework and are arranged in a predetermined quantity ratio or spatial position; a gas-liquid flow channel is disposed between adjacent hydrophilic packing sheets and hydrophobic catalyst plates; the flow wall ring is disposed on the outer periphery of the framework formed by the hydrophilic packing sheet and the hydrophobic catalyst plate; and the clamp is disposed on the outer periphery of the flow wall ring.

[0012] Optionally, the gas-liquid flow channel is constructed in at least one of the following ways: both the hydrophilic packing sheet and the hydrophobic catalyst plate are corrugated plates, arranged alternately and supporting each other to form a flow channel; one of the hydrophilic packing sheet and the hydrophobic catalyst plate is a corrugated plate, and the other is a flat plate, with the corrugated structure of the corrugated plate forming the flow channel; both the hydrophilic packing sheet and the hydrophobic catalyst plate are flat plates, and a filler is provided between adjacent two layers of flat plates to support and form a flow channel. Optionally, the filler is a wire mesh.

[0013] Optionally, the hydrophilic filler material is selected from stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, special plastics, or one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, and special plastics that have undergone hydrophilic treatment; the hydrophobic catalyst plate includes an internal matrix and an active component supported on the surface of the internal matrix; the internal matrix includes one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, and aluminum, and the active component includes one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

[0014] This invention also provides a method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange, comprising the following steps: S1. Determine the stacking ratio and arrangement order of hydrophilic filler sheets and hydrophobic catalyst plates according to the target hydrophilic-hydrophobic performance ratio. S2. Preparation of hydrophilic filler sheets and hydrophobic catalyst plates; S3. Stack or roll up the hydrophilic filler sheets and hydrophobic catalyst plates according to the stacking ratio and arrangement order, and construct gas-liquid flow channels between adjacent layers. S4. Install wall flow rings and clamps around the outer perimeter of the frame for wrapping and reinforcement.

[0015] The beneficial effects of this invention are: This invention provides a highly efficient catalytic structured packing structure that effectively combines hydrophobic catalysts and hydrophilic packing. By fixing the gas phase channel and ensuring uniform dispersion of the liquid phase, it effectively avoids the scale-up effect of the packing, reduces wall flow and channeling of the liquid phase, lowers the pressure drop inside the catalytic column, and reduces adverse effects such as the shedding and loss of active catalyst components. This greatly improves the efficiency of the catalytic packing, reduces the column height, and reduces the amount of catalytic packing used, which is of great significance for promoting the development of related technologies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a catalytically structured packing. Figure 2 This is a top view of the embedded structure of the catalytic structured packing; Figure 3 This is a first schematic diagram of the combination of hydrophilic corrugated packing sheet and hydrophobic spherical particles in Example 1; Figure 4 This is a second schematic diagram of the combination of hydrophilic corrugated packing sheet and hydrophobic spherical particles in Example 1; Figure 5 This is a third schematic diagram of the combination of hydrophilic corrugated packing sheet, hydrophilic horizontal plate packing sheet and hydrophobic spherical particles in Example 1; Figure 6 This is a first schematic diagram of the combination of hydrophilic corrugated packing sheet and hydrophobic columnar particles in Example 1; Figure 7 This is a second schematic diagram of the combination of hydrophilic corrugated packing sheet and hydrophobic columnar particles in Example 1; Figure 8 This is a third schematic diagram of the combination of hydrophilic corrugated packing sheet, hydrophilic horizontal plate packing sheet and hydrophobic columnar particles in Example 1; Figure 9 This is a first schematic diagram of the integrated hydrophilic corrugated packing sheet and the hydrophobic catalytic corrugated packing sheet of Example 2; Figure 10 This is a second schematic diagram of the hydrophilic corrugated packing sheet and the hydrophobic catalytic corrugated packing sheet of Example 2; Figure 11 This is a first schematic diagram of the hydrophilic corrugated packing sheet and the hydrophobic catalytic flat packing sheet of Example 2; Figure 12 This is a second schematic diagram of the hydrophilic corrugated packing sheet and the hydrophobic catalytic flat plate packing sheet of Example 2.

[0017] Figure label: 1. Hydrophilic packing material; 11. Hydrophilic corrugated packing sheet; 12. Hydrophilic flat packing sheet; 2. Hydrophobic catalyst; 21. Hydrophobic spherical particles; 22. Hydrophobic columnar particles; 23. Hydrophobic catalytic corrugated packing sheet; 24. Hydrophobic catalytic flat packing sheet; 3. Wall flow ring; 4. Clamping ring. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The concept of this invention is based on a corrugated sheet structure design. The corrugated sheets can be hydrophilic packing sheets or hydrophobic catalyst plates. The structured packing prepared using this structure has adjacent pieces stacked in a staggered pattern to form regular, continuous flow channels. Gas rises stably along the inclined direction of the corrugations, resulting in uniform flow channels, low resistance, and no local short-circuiting. Liquid spreads uniformly as a liquid film on the surface of the hydrophilic packing sheets and flows orderly downwards along the corrugated slope. Stable film flow is achieved through surface tension and the corrugated guide channels, preventing local convergence and effectively avoiding channeling effects. Furthermore, this invention adds a wall flow ring to the catalytic structured packing, which forces liquid flowing towards the tower wall back to the main packing area, significantly suppressing wall flow and improving the overall utilization rate of the packing and catalytic exchange efficiency.

[0020] Furthermore, the hydrogen-water isotope liquid-phase catalytic exchange reaction is a coupling of two processes: phase transformation and catalytic exchange. The process reaction equations are shown in equations (1)-(3): Phase transition: HDO(l) + H2O(v) → HDO(v) + H2O(l) (1) Catalytic exchange: HDO(v) + H2(g) → HD(g) + H2O(v) (2) Coupling process: HDO(l) + H2(g) → HD(g) + H2O(l) (3) The phase transition occurs on the surface of the hydrophilic packing material, while the catalytic exchange occurs on the surface of the hydrophobic catalyst. The products of the phase transition directly participate in the catalytic exchange process. Whether embedded or integrated, structured catalytic packing materials, compared to bulk packing materials, allow the hydrophilic material and hydrophobic catalyst to contact each other in a specific pattern, significantly reducing the reaction pathway of the hydrogen-water isotope catalytic exchange process.

[0021] Example 1 like Figure 1 and Figure 2 As shown, this invention provides an embedded catalytic structured packing. The catalytic structured packing includes a hydrophilic packing 1, a hydrophobic catalyst 2, a wall flow ring 3 for preventing liquid from flowing down the tower wall, and a clamp 4. The hydrophilic packing 1 includes at least two layers of hydrophilic packing sheets as a supporting framework. The hydrophobic catalyst 2 consists of hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings, or star-shaped rings. The hydrophobic catalyst particles are at least partially disposed between adjacent hydrophilic packing sheets, thus forming an embedded packing structure. The wall flow ring 3 is disposed on the outer periphery of the hydrophilic packing 1; the clamp 4 is disposed on the outer periphery of the wall flow ring 3, wrapping and reinforcing the hydrophilic packing 1 and the hydrophobic catalyst 2. This structure neatly and uniformly fixes the originally loose catalyst particles within the hydrophilic framework, forming a fixed gas-liquid channel. For example, the hydrophobic catalyst particles can be partially or fully disposed between adjacent hydrophilic packing sheets.

[0022] In this embodiment, the hydrophobic catalyst particles include particles, strips, spheres, cylinders, Raschig rings, or star-shaped rings. Common hydrophobic spherical particles include Pt / SDB particles and Pt / C / PTFE particles; common hydrophobic columnar particles include Pt / C / PTFE strips; and common Raschig rings or star-shaped rings include Raschig rings or star-shaped rings formed by rolling Pt / C / PTFE supported on metal or special plastics.

[0023] In this embodiment, the hydrophilic filler 1 can be a hydrophilic corrugated packing sheet or a hydrophilic flat plate packing sheet. For example, the hydrophilic corrugated packing sheet can be embedded within the hydrophilic corrugated packing sheet.

[0024] like Figures 1 to 7 As shown, hydrophobic spherical particles 21 are uniformly laid on the hydrophilic filler 1, which serves as a supporting framework. The hydrophilic filler 1 can be a corrugated sheet or a flat sheet with a specific geometric shape. Figure 5 As shown, when the hydrophilic filler 1 is a hydrophilic horizontal plate filler 12, a hydrophilic corrugated filler 11 is also provided between the two hydrophilic horizontal plate filler sheets to adjust the hydrophilic-hydrophobic ratio and fluid channels of the filler unit.

[0025] like Figures 1 to 7 As shown, hydrophobic columnar particles 22 are evenly spread on a hydrophilic filler sheet 1, which serves as a supporting framework. The hydrophilic filler sheet 1 can be a corrugated sheet or a flat sheet with a certain geometric shape. Figure 8 As shown, when the hydrophilic filler 1 is a hydrophilic horizontal plate filler 12, a hydrophilic corrugated filler 11 is also provided between the two hydrophilic horizontal plate filler 12 to adjust the hydrophilic-hydrophobic ratio and fluid channels of the filler unit.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, the hydrophilic filler 1 is made of one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, and special plastics, or of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, and special plastics that have undergone hydrophilic treatment. The hydrophobic catalyst particles include a support and an active component supported on the support. The support includes one or more of styrene-divinylbenzene copolymer (SDB), carbon materials, molecular sieves, and metal-organic framework compounds (MOFs). The active component includes one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

[0027] In this embodiment, a method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange includes the following steps: S1, determining the configuration ratio and distribution area of ​​hydrophobic catalyst particles between hydrophilic packing sheets according to the target catalytic exchange efficiency; S2, preparing hydrophilic packing sheets and hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings, or star rings; S3, embedding and fixing the hydrophobic catalyst particles between at least two layers of hydrophilic packing sheets according to the distribution area; S4, providing wall flow rings and clamps for wrapping and reinforcement.

[0028] Example 2 This invention provides an integrated catalytic structured packing structure. For example... Figure 1 and Figure 12 As shown, the catalytic structured packing includes a hydrophilic packing 1, a hydrophobic catalyst 2, a wall flow ring 3 to prevent liquid from flowing down the tower wall, and a clamp 4. The hydrophilic packing 1 is a hydrophilic packing sheet; the hydrophobic catalyst 2 is a hydrophobic catalyst plate. The hydrophilic packing sheet and the hydrophobic catalyst plate together form a supporting framework and are arranged in a predetermined quantity ratio or spatial position. A gas-liquid flow channel is set between adjacent hydrophilic packing sheets and hydrophobic catalyst plates. The wall flow ring 3 is set on the outer periphery of the framework formed by the hydrophilic packing sheet and the hydrophobic catalyst plate. The clamp 4 is set on the outer periphery of the wall flow ring 3. In this structure, both the hydrophilic and hydrophobic parts become structural support units of the packing, achieving a high degree of integration of the two functional materials.

[0029] In this embodiment, as Figures 1 to 12 As shown, the gas-liquid flow channel is constructed in at least one of the following ways: (1) Both the hydrophilic packing sheet and the hydrophobic catalyst plate are corrugated plates, which are arranged alternately and support each other to form a flow channel. Figure 9 and Figure 10 As shown, hydrophilic corrugated packing sheet 11 (such as stainless steel wire mesh corrugated plate) and hydrophobic catalyst corrugated plate 23 (i.e., hydrophobic catalyst corrugated packing sheet 23) are alternately arranged and rolled or stacked. Since both are corrugated, the contact points between them form a stable support, and their corrugated channels naturally form a through gas-liquid flow path. (2) In the hydrophilic packing sheet and the hydrophobic catalyst plate, one is a corrugated plate and the other is a flat plate. The flow channel is constructed by the corrugated structure of the corrugated plate. Figure 11 and Figure 12 As shown, the hydrophobic catalyst plate is a flat plate structure (i.e., hydrophobic catalyst plate packing sheet 24). (3) Both the hydrophilic packing sheet and the hydrophobic catalyst plate are flat plates, and there is a filler between two adjacent flat plates to support and form a flow channel. Here, the filler is a wire mesh. Here, by changing the ratio of the number of hydrophilic packing sheets and hydrophobic plates, the overall hydrophilic and hydrophobic properties of the packing can be flexibly adjusted.

[0030] In this embodiment, the hydrophilic filler material is selected from one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, special plastics, or stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, SiC, and special plastics that have undergone hydrophilic treatment. The hydrophobic catalyst plate includes an internal matrix and an active component supported on the surface of the internal matrix; the internal matrix includes one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, and aluminum, and the active component includes one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

[0031] In this embodiment, a method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange includes the following steps: S1, determining the stacking ratio and arrangement order of hydrophilic packing sheets and hydrophobic catalyst plates according to the target hydrophilic-hydrophobic performance ratio; S2, preparing hydrophilic packing sheets and hydrophobic catalyst plates; S3, stacking or rolling the hydrophilic packing sheets and hydrophobic catalyst plates according to the stacking ratio and arrangement order, and constructing gas-liquid flow channels between adjacent layers; S4, setting wall flow rings and clamps on the outer periphery of the skeleton for wrapping and reinforcement.

[0032] Will Figure 9 or Figure 10 The integrated catalytic structured packing was placed in a 360mm diameter LPCE (Liquid Phase Catalytic Exchange) test column for performance evaluation. The test results showed that: (1) The pressure drop of this catalytic structured packing is 70~120kPa / m, which is more than 50% lower than the 250kPa / m of traditional bulk packing, significantly reducing operating energy consumption.

[0033] (2) The height of equal plate (HETP) of the catalytic structured packing is less than 20 cm. Compared with various random packings (27-30 cm) reported in the literature, the mass transfer efficiency is improved by about 30% or more, which proves that it can achieve efficient and uniform gas-liquid phase dispersion and effectively suppress the scale-up effect.

[0034] (3) After long-term operation, the loss rate of the catalyst active component (Pt) was found to be extremely low, which proves that the regular structure effectively protects the catalyst and improves its service life and the utilization rate of precious metals.

[0035] In summary, addressing the technical problems of existing random-pile catalytic packing materials, such as scale-up effects, wall flow, channeling, excessive pressure drop in the catalytic column, and loss of active catalyst components, this invention, by adapting the shape, size, and structural characteristics of hydrophobic catalysts, efficiently combines hydrophobic catalysts with hydrophilic packing materials, designing a highly efficient structured catalytic packing material suitable for hydrogen-water isotope catalytic exchange. Specifically, the embedded structured packing material is adapted to granular or strip-shaped hydrophobic catalysts. By regularly and uniformly embedding this type of hydrophobic catalyst into the hydrophilic packing framework, combined with the fixing effect of wall flow rings and clamps, wall flow and channeling effects are effectively reduced. Simultaneously, the structured structure forms fixed gas-liquid channels, reducing the pressure drop within the catalytic column, and the fixed catalyst particles reduce friction between packing materials and water vapor erosion, mitigating the loss and shedding of active catalyst components. The integrated structured packing is compatible with plate-shaped hydrophobic catalysts. The hydrophilic packing sheets and hydrophobic catalyst plates together serve as the supporting framework, and the structure is fixed with the wall flow ring and clamps. Through the stacking of corrugated plates and the combination of corrugated plates and flat plates, a continuous gas-liquid channel is naturally constructed. This improves mass transfer efficiency and reduces the pressure drop of the catalytic column, while preventing the loss of active ingredients caused by the secondary molding of hydrophobic catalyst plates. At the same time, through the optimized integration of the wall flow ring and packing sheets, the wall flow, channel flow and packing scale-up effect are effectively suppressed, thereby enhancing the industrial application value of the packing.

[0036] Various embodiments of the present invention may exist in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a hard limitation on the scope of the invention; therefore, it should be considered that the range description has specifically disclosed all possible subranges and single numerical values ​​within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. Furthermore, whenever a numerical range is referred to herein, it means including any referenced number (fraction or integer) within the range referred to.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A catalytically structured packing material for hydrogen-water isotope catalytic exchange, characterized in that, Embedded structured packings include hydrophilic packings, hydrophobic catalysts, flow rings, and clamps; The hydrophilic filler comprises at least two layers of hydrophilic filler sheets that serve as a supporting framework; The hydrophobic catalyst includes hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings or star rings, wherein the hydrophobic catalyst particles are at least partially disposed between adjacent hydrophilic filler sheets; The wall flow ring is set on the outer periphery of the hydrophilic filler; The clamp is set on the outer periphery of the wall flow ring to wrap and reinforce the hydrophilic filler and hydrophobic catalyst.

2. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 1, characterized in that, The hydrophilic packing sheet is a hydrophilic corrugated packing sheet or a hydrophilic flat plate packing sheet.

3. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 2, characterized in that, When the hydrophilic packing sheet is a hydrophilic horizontal plate packing sheet, a hydrophilic corrugated packing sheet is also provided between the two layers of hydrophilic horizontal plate packing sheets.

4. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 1, characterized in that, The hydrophilic filler material is selected from one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, silicon carbide, special plastics, or stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, silicon carbide, and special plastics that have undergone hydrophilic treatment; The hydrophobic catalyst particles include a support and an active component loaded on the support. The support includes one or more of styrene-divinylbenzene copolymer, carbon materials, molecular sieves, and metal-organic framework compounds. The active component includes one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

5. A method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange according to any one of claims 1-4, characterized in that, Includes the following steps: S1. Determine the configuration ratio and distribution area of ​​hydrophobic catalyst particles among hydrophilic packing sheets based on the target catalytic exchange efficiency. S2. Prepare hydrophilic filler sheets and hydrophobic catalyst particles in the form of granules, strips, spheres, cylinders, Raschig rings or star rings; S3. According to the distribution area, embed and fix the hydrophobic catalyst particles between at least two layers of hydrophilic filler sheets; S4. Install wall flow rings and clamps to wrap and reinforce the area.

6. A catalytically structured packing material for hydrogen-water isotope catalytic exchange, characterized in that, Integrated structured packing includes hydrophilic packing, hydrophobic catalyst, wall flow ring, and clamps; The hydrophilic filler is a hydrophilic filler sheet; The hydrophobic catalyst is a hydrophobic catalyst plate; the hydrophilic filler sheet and the hydrophobic catalyst plate together serve as a supporting framework and are arranged in a predetermined quantity ratio or spatial position. The gas-liquid flow channel is located between adjacent hydrophilic packing sheets and hydrophobic catalyst plates; The wall flow ring is located on the outer periphery of the skeleton formed by the hydrophilic packing sheet and the hydrophobic catalyst plate; The clamp is installed on the outer periphery of the wall flow ring.

7. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 6, characterized in that, The gas-liquid flow channel is constructed in at least one of the following ways: Both the hydrophilic packing sheet and the hydrophobic catalyst plate are corrugated plates, which are arranged alternately and support each other to form a flow channel. In the hydrophilic filler sheet and the hydrophobic catalyst plate, one is a corrugated plate and the other is a flat plate. The corrugated structure of the corrugated plate forms the flow channel. Both the hydrophilic filler sheet and the hydrophobic catalyst plate are flat plates, and there is filler between two adjacent flat plates to support and form a flow channel.

8. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 7, characterized in that, The filler is a wire mesh.

9. The catalytically structured packing material structure for hydrogen-water isotope catalytic exchange according to claim 6, characterized in that, The hydrophilic filler material is selected from one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, silicon carbide, special plastics, or stainless steel, nickel, iron, cobalt, copper, magnesium, aluminum, ceramics, silicon carbide, and special plastics that have undergone hydrophilic treatment; The hydrophobic catalyst plate includes an inner matrix and an active component supported on the surface of the inner matrix; the inner matrix includes one or more of stainless steel, nickel, iron, cobalt, copper, magnesium, and aluminum, and the active component includes one or more of platinum, ruthenium, copper, cobalt, nickel, and iron.

10. A method for preparing a catalytically ordered packing structure for hydrogen-water isotope catalytic exchange according to any one of claims 6-9, characterized in that, Includes the following steps: S1. Determine the stacking ratio and arrangement order of hydrophilic filler sheets and hydrophobic catalyst plates according to the target hydrophilic-hydrophobic performance ratio. S2. Preparation of hydrophilic filler sheets and hydrophobic catalyst plates; S3. Stack or roll up the hydrophilic filler sheets and hydrophobic catalyst plates according to the stacking ratio and arrangement order, and construct gas-liquid flow channels between adjacent layers. S4. Install wall flow rings and clamps around the outer perimeter of the frame for wrapping and reinforcement.

Images