Coal-to-methanol synthesis gas purification device

Abstract

The utility model relates to the technical field of methanol purification, and provides a coal-to-methanol synthesis gas purification device which comprises a catalytic device, a gas inlet is formed in the top of the catalytic device, and a gas outlet is formed in the bottom of the catalytic device; a gas distributor is installed at the position, close to the inner side of the catalytic device, of the bottom of the gas inlet, two partition plates are further arranged on the inner side of the catalytic device, a ring pipe is arranged at the position, arranged on the inner side of the catalytic device, between the two partition plates, and cooling pipes are arranged at the bottom end and the outer side of the ring pipe. A catalyst cavity is formed in the inner side, close to the outer side of the cooling pipe, of the catalytic device; the application of the demister further removes tiny liquid drops and vaporific impurities entrained in the gas, ensures the purity of the purified synthesis gas, and meets the strict requirements of high-end chemical production on the gas quality.

Description

Technical Field

[0001] This utility model relates to the field of methanol purification technology, specifically a coal-to-methanol synthesis gas purification device. Background Technology

[0002] In the field of syngas preparation and purification, with the continuous development of industrial technology, the requirements for the purity of syngas are becoming increasingly stringent. As an important raw material for many chemical processes, the quality of syngas directly affects the performance and quality of subsequent products.

[0003] Traditional syngas purification units typically employ a single purification method, such as purification through reaction only via a catalyst bed. However, this method often suffers from problems such as uneven distribution of feed gas and difficulty in removing reaction heat, resulting in low purification efficiency, shortened catalyst lifespan, and even potential safety hazards.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a coal-to-methanol synthesis gas purification device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a coal-to-methanol synthesis gas purification device, which can conveniently filter and eliminate the mist from the falling gas by setting an annular demister.

[0006] A coal-to-methanol synthesis gas purification device includes a catalytic device. The top of the catalytic device is provided with an air inlet, and the bottom of the catalytic device is provided with an air outlet. A gas distributor is installed at the bottom of the air inlet near the inside of the catalytic device. Two partition plates are also provided on the inside of the catalytic device, and a ring pipe is provided between the two partition plates at a position inside the catalytic device.

[0007] The bottom and outer sides of the ring tube are provided with cold pipes; the inner side of the catalytic device is provided with a catalyst chamber near the outer side of the cold pipe.

[0008] A filtration mechanism is provided between the catalytic device and the cooling pipe. The filtration mechanism includes a demister, which is arranged in a ring shape inside the catalytic device. The inner wall of the demister is provided with multiple arc-shaped plates.

[0009] The inner wall of the air inlet is provided with a primary filter component.

[0010] Preferably, the primary filter assembly includes a filter box, which is installed on the inner wall of the air inlet. The inner wall of the filter box is provided with multiple multi-stage filter plates, and the outermost end of the filter box is provided with a sealing gasket.

[0011] Preferably, the sealing gasket has two insertion slots near its outermost position, and the sealing gasket is arc-shaped and fits into the air inlet.

[0012] Preferably, the air inlet has a placement groove near the sealing gasket for placing the filter box, and two limiting bolts are provided on both sides of the air inlet near the placement groove. The two limiting bolts are also inserted into the inside of the sealing gasket.

[0013] Preferably, the outer wall of the limiting bolt is threaded with a limiting sleeve, and the limiting sleeve is also in contact with the sealing gasket to compress the sealing gasket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The application of demisters further removes tiny droplets and mist-like impurities entrained in the gas, ensuring the purity of the purified synthesis gas and meeting the stringent gas quality requirements of high-end chemical production.

[0016] 2. The inlet filter assembly effectively intercepts solid particles and impurities in the raw gas, preventing them from entering the subsequent purification system. This protects the catalyst and other critical equipment from wear and blockage, significantly improving the overall operating efficiency and stability of the purification unit. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This utility model Figure 1 A top view of the structure of the central demister;

[0019] Figure 3 This utility model Figure 1 A cross-sectional view of the central air intake.

[0020] In the diagram: 1. Catalytic converter; 2. Inlet; 3. Outlet; 4. Gas distributor; 5. Divider plate; 6. Ring pipe; 7. Cooling pipe; 8. Catalyst chamber; 9. Demister; 10. Arc plate; 11. Filter box; 12. Multi-stage filter plate; 13. Sealing gasket; 14. Limit bolt; 15. Limit sleeve. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] As attached Figure 1 To be continued Figure 3 As shown:

[0023] Example 1: According to Figures 1-3 As shown, this utility model provides a coal-to-methanol synthesis gas purification device, including a catalytic device 1. The top of the catalytic device 1 is provided with an air inlet 2, and the bottom of the catalytic device 1 is provided with an air outlet 3. A gas distributor 4 is installed at the bottom of the air inlet 2 near the inner side of the catalytic device 1. Two partition plates 5 are also provided on the inner side of the catalytic device 1, and a ring pipe 6 is provided between the two partition plates 5 at a position inside the catalytic device 1.

[0024] A cooling pipe 7 is provided at the bottom and outside of the ring pipe 6; a catalyst chamber 8 is provided on the inner side of the catalytic device 1 near the outer side of the cooling pipe 7.

[0025] The filtration mechanism is located between the catalytic device 1 and the cooling pipe 7. The filtration mechanism includes a demister 9, which is arranged in a ring shape inside the catalytic device 1. The inner wall of the demister 9 is provided with multiple arc-shaped plates 10. The demister is installed between the catalyst chamber and the reaction gas outlet to remove tiny droplets and mist-like impurities entrained in the gas.

[0026] A primary filter assembly is provided on the inner wall of the air inlet 2. The primary filter assembly includes a filter box 11, which is installed on the inner wall of the air inlet 2. Multiple multi-stage filter plates 12 are provided on the inner wall of the filter box 11. A sealing gasket 13 is provided at the outermost end of the filter box 11. Two insertion slots are formed near the outermost position of the sealing gasket 13. The sealing gasket 13 is arc-shaped and fits snugly against the air inlet 2. A placement slot is formed near the sealing gasket 13 in the air inlet 2 for... The filter box 11 is positioned such that two limiting bolts 14 are provided on both sides of the air inlet 2 near the placement groove. These two limiting bolts 14 are also inserted into the inner side of the sealing gasket 13. A limiting sleeve 15 is threaded onto the outer wall of each limiting bolt 14, and the limiting sleeve 15 is also fitted against the sealing gasket 13, compressing it. The inlet filter assembly is installed at the air inlet of the device and employs a multi-layer filter structure, including a coarse filter and a fine filter, to effectively intercept solid particles and impurities in the raw gas. The filter material is selected from corrosion-resistant, high-strength stainless steel or alloy materials to ensure long-term stable operation.

[0027] Working principle: When this device is needed, first insert the filter box 11 into the air inlet 2, align the placement groove of the sealing gasket 13 with the position of the limiting bolt 14 and insert the sealing gasket 13, then thread the limiting screw sleeve 15 and the limiting bolt 14 together to limit the sealing gasket 13 and fit the sealing gasket 13 with the air inlet 2. Through the multi-stage filter plate 12, the gas can be filtered in multiple stages. Then the gas enters the ring pipe 6 and is discharged from the outside. Next, the gas passes through the catalyst chamber 8 and is filtered from the position of the demister 9 and the arc plate 10. After filtration, the gas is discharged from the air outlet 3.

[0028] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal-to-methanol syngas purification apparatus, characterized by: Including catalytic device (1), the top of catalytic device (1) is provided with gas inlet (2), the bottom of catalytic device (1) is provided with gas outlet (3);The bottom of gas inlet (2) is installed with gas distributor (4) near the position of the inside of catalytic device (1), the inside of catalytic device (1) is also provided with two partition plates (5), and the annular pipe (6) is arranged in the position of the inside of catalytic device (1) between two partition plates (5); The bottom end and the outside of annular pipe (6) are provided with cold pipe (7);The inside of catalytic device (1) is provided with catalyst cavity (8) near the outside of cold pipe (7); Filtering mechanism, the filtering mechanism is arranged between catalytic device (1) and cold pipe (7), and the filtering mechanism includes demister (9), the demister (9) is annularly arranged on the inside of catalytic device (1), and the inside wall of demister (9) is provided with a plurality of arc-shaped plates (10); The inside wall of gas inlet (2) is provided with primary filter assembly.

2. The coal-to-methanol syngas purification device of claim 1, wherein: The primary filter assembly includes filter box (11), the filter box (11) is installed on the inside wall of gas inlet (2), the inside wall of filter box (11) is provided with a plurality of multistage filter plates (12), and the outermost end of filter box (11) is provided with sealing gasket (13).

3. The coal-to-methanol syngas purification device of claim 2, wherein: Two insertion grooves are formed in the position close to the outermost side of sealing gasket (13), and sealing gasket (13) is arc-shaped and matched with gas inlet (2).

4. The coal-to-methanol syngas purification device of claim 2, wherein: The gas inlet (2) is provided with a placing groove near the position of sealing gasket (13), for placing filter box (11), and the two sides of the placing groove of gas inlet (2) are provided with two limiting bolts (14), and the two limiting bolts (14) are also inserted into the inside of sealing gasket (13).

5. The coal-to-methanol syngas purification device of claim 4, wherein: The outside wall of limiting bolt (14) is threadedly connected with limiting nut (15), and limiting nut (15) is also matched with sealing gasket (13) to extrude sealing gasket (13).

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