Efficient hydrogenation reactor
By designing a high-efficiency hydrogenation reactor and using the multi-layer catalytic bed and spare bed settings, the problem of catalyst failure is solved, the operating efficiency and operating cycle of the reactor are improved, and the catalyst consumption is reduced.
Patent Information
- Application Number
- CN202421930435.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-10
AI Technical Summary
During the operation of existing hydrogenation reactors, the catalyst was not fully utilized, resulting in a decrease in the efficiency of catalyst use, affecting product quality and reaction efficiency.
A high-efficiency hydrogenation reactor is designed to use a multi-layer catalytic bed to fully utilize the catalyst through flexible switching between parallel and series, and the operating cycle of the reactor is extended by setting the standby bed.
The operating efficiency of the reactor is improved, the operating cycle of the reactor is extended, and the consumption cost of catalyst is reduced.
Smart Images
Figure CN222901041U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical industry, in particular to a high-efficiency hydrogenation reactor. Background Art
[0002] The hydrogenation reactor is a key equipment, widely used in petrochemical and coal chemical industries. Its main function is to realize the selective hydrogenation reaction between hydrogen and organic compounds to generate corresponding alcohols, ethers, hydrocarbons and other products, while removing impurities and harmful substances. The hydrogenation reactor usually operates in a high-temperature hydrogen environment, and the main material needs to consider hydrogen corrosion. According to the operation mode and structural characteristics, the hydrogenation reactor can be divided into fixed bed, boiling bed, suspended bed and fluidized bed types. In olefin production, the hydrogenation reactor also plays an important role in converting low-carbon olefins into high-carbon olefins.
[0003] In the existing 450,000 tons / year hydrogenation product quality improvement technical transformation project, the reactor was found during operation that during the trial production, a single bed was sufficient to process the raw materials completely, and the R-202B bed had basically no temperature rise. The R-202B bed had no temperature rise, which meant that the catalyst in the bed was not fully utilized, which led to a decrease in the catalyst utilization efficiency. The catalyst is a key factor in the hydrogenation reaction, and its performance directly affects the product quality and reaction efficiency. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a high-efficiency hydrogenation reactor with the advantages of good practicability and high efficiency to solve the above problems.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency hydrogenation reactor, comprising a hydrogenation reactor body, and a feed pipe fixedly connected to the front end outer surface of the hydrogenation reactor body, a third connecting pipe fixedly connected to the rear end outer surface of the feed pipe, a second connecting pipe and a fourth connecting pipe fixedly connected to the rear end outer surface of the third connecting pipe, a discharge end of the second connecting pipe fixedly connected to the first catalytic bed, a discharge end of the fourth connecting pipe fixedly connected to the second catalytic bed, and a discharge end of the first catalytic bed fixedly connected to the first connecting pipe.
[0008] Preferably, the third connecting pipe is provided with a first stop valve, the first connecting pipe is provided with a second stop valve, the first connecting pipe is U-shaped, and the discharge end of the first connecting pipe is connected to the second catalytic bed.
[0009] Preferably, a bottom support frame is provided on the lower outer surface of the hydrogenation reactor body, a side suspension piece is fixedly connected to the left outer surface of the bottom support frame, and an anti-skid shock-absorbing pad is fixedly connected to the lower outer surface of the bottom support frame.
[0010] Preferably, an arc pad is fixedly connected to the upper outer surface of the bottom support frame, the upper outer surface of the arc pad is fixedly connected to the outer wall of the hydrogenation reactor body, and a plug is provided on the front end outer surface of the feed pipe.
[0011] Preferably, a first circular mounting hole adapted to the feed pipe is provided on the front end outer surface of the hydrogenation reactor body, and the hydrogenation reactor body is fixedly connected to the feed pipe through the first circular mounting hole.
[0012] Preferably, a first circular hole compatible with the first stop valve is opened on the front end outer surface of the hydrogenation reactor body, and the hydrogenation reactor body is movably connected to the first stop valve through the first circular hole. A second circular hole compatible with the second stop valve is opened on the rear end outer surface of the hydrogenation reactor body, and the hydrogenation reactor body is movably connected to the second stop valve through the second circular hole.
[0013] Preferably, a first suspension hole and a second suspension hole are formed on the left outer surface of the side suspension piece, and the second suspension hole is located below the first suspension hole.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a high-efficiency hydrogenation reactor with the following beneficial effects:
[0016] This is a highly efficient hydrogenation reactor:
[0017] 1. Improve operating efficiency: By flexibly switching between parallel and series connection, the activity of the catalyst is fully utilized to improve the operating efficiency of the reactor;
[0018] 2. Extend the operation cycle: By setting up a spare bed, the reactor downtime caused by the degradation of catalyst performance is reduced, thereby extending the operation cycle of the reactor;
[0019] 3. Reduce catalyst consumption: Through reasonable catalyst use strategy, the frequency of catalyst regeneration is reduced and the catalyst consumption cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a high-efficiency hydrogenation reactor of the utility model;
[0021] Figure 2 This is a schematic structural diagram of a catalytic bed in a high-efficiency hydrogenation reactor of the utility model;
[0022] Figure 3This is a schematic diagram of the structure of the bottom support frame in a high-efficiency hydrogenation reactor of the utility model;
[0023] Figure 4 The utility model is a schematic diagram of the structure of a feed pipe in a high-efficiency hydrogenation reactor.
[0024] In the figure: 1. hydrogenation reactor body; 2. first stop valve; 3. feed pipe; 4. plug; 5. arc pad; 6. bottom support frame; 7. anti-skid shock-absorbing pad; 8. side suspension; 9. second stop valve; 10. first connecting pipe; 11. first catalytic bed; 12. second connecting pipe; 13. third connecting pipe; 14. fourth connecting pipe; 15. second catalytic bed. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-4 A high-efficiency hydrogenation reactor comprises a hydrogenation reactor body 1, and a feed pipe 3 fixedly connected to the front end outer surface of the hydrogenation reactor body 1, a third connecting pipe 13 is fixedly connected to the rear end outer surface of the feed pipe 3, a second connecting pipe 12 and a fourth connecting pipe 14 are fixedly connected to the rear end outer surface of the third connecting pipe 13, a discharge end of the second connecting pipe 12 is fixedly connected to a first catalytic bed 11, a discharge end of the fourth connecting pipe 14 is fixedly connected to a second catalytic bed 15, a discharge end of the first catalytic bed 11 is fixedly connected to a first connecting pipe 10, a first stop valve 2 is arranged on the third connecting pipe 13, a second stop valve 9 is arranged on the first connecting pipe 10, the first connecting pipe 10 is U-shaped, and the discharge end of the first connecting pipe 10 is connected to the second catalytic bed 15.
[0027] The high-efficiency hydrogenation reactor comprises a hydrogenation reactor body 1, wherein a first catalytic bed 11 and a second catalytic bed 15 are arranged inside the hydrogenation reactor body 1, and the first catalytic bed 11 and the second catalytic bed 15 are connected by a pipeline. In the initial stage, by controlling a first stop valve 2, raw materials are reacted only through one of the first catalytic beds 11, and the other second catalytic bed 15 is in a standby state. As the reaction proceeds, when the performance of the first catalytic bed 11 in use decreases, the second stop valve 9 is adjusted to introduce the raw materials into the second catalytic bed 15, so that the two-stage catalyst beds are used in series.
[0028] A bottom support frame 6 is provided on the outer surface of the lower end of the hydrogenation reactor body 1, a side suspension member 8 is fixedly connected to the left outer surface of the bottom support frame 6, a non-slip shock-absorbing pad 7 is fixedly connected to the lower outer surface of the bottom support frame 6, an arc pad 5 is fixedly connected to the upper outer surface of the bottom support frame 6, and the upper outer surface of the arc pad 5 is fixedly connected to the outer wall of the hydrogenation reactor body 1, a plug 4 is provided on the front end outer surface of the feed pipe 3, and a first suspension hole and a second suspension hole are opened on the left outer surface of the side suspension member 8, and the second suspension hole is located below the first suspension hole;
[0029] First, the bottom support frame 6 provides a stable support for the hydrogenation reactor body 1, ensuring the stability of the reactor during operation. This stability is crucial for hydrogenation reactions carried out under high temperature and high pressure, and can effectively prevent safety hazards caused by equipment shaking or vibration. Secondly, the setting of the side suspension 8 enhances the overall structural strength of the reactor, making the reactor more convenient and safe during hoisting, transportation or maintenance. The side suspension 8 can withstand a certain weight and tension, providing a reliable guarantee for the movement and fixation of the reactor. In addition, the addition of the anti-skid shock-absorbing pad 7 not only increases the friction between the bottom support frame 6 and the ground, preventing the reactor from sliding or shifting during operation, but also can reduce the impact of the vibration generated during the operation of the reactor on the surrounding environment and equipment. This not only ensures the stable operation of the reactor, but also reduces the interference caused by noise and vibration to the operator and the surrounding environment.
[0030] A first circular mounting hole compatible with the feed pipe 3 is provided on the front end outer surface of the hydrogenation reactor body 1, and the hydrogenation reactor body 1 is fixedly connected to the feed pipe 3 through the first circular mounting hole. A first circular hole compatible with the first stop valve 2 is provided on the front end outer surface of the hydrogenation reactor body 1, and the hydrogenation reactor body 1 is movably connected to the first stop valve 2 through the first circular hole. A second circular hole compatible with the second stop valve 9 is provided on the rear end outer surface of the hydrogenation reactor body 1, and the hydrogenation reactor body 1 is movably connected to the second stop valve 9 through the second circular hole.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency hydrogenation reactor, comprising a hydrogenation reactor body (1), and a feed pipe (3) fixedly connected to the front end outer surface of the hydrogenation reactor body (1), characterized in that: The rear end outer surface of the feed pipe (3) is fixedly connected to a third connecting pipe (13), the rear end outer surface of the third connecting pipe (13) is fixedly connected to a second connecting pipe (12) and a fourth connecting pipe (14), the discharge end of the second connecting pipe (12) is fixedly connected to a first catalytic bed (11), the discharge end of the fourth connecting pipe (14) is fixedly connected to a second catalytic bed (15), and the discharge end of the first catalytic bed (11) is fixedly connected to the first connecting pipe (10).
2. A high efficiency hydrogenation reactor according to claim 1, characterized in that: The third connecting pipe (13) is provided with a first stop valve (2), the first connecting pipe (10) is provided with a second stop valve (9), the first connecting pipe (10) is U-shaped, and the discharge end of the first connecting pipe (10) is connected to the second catalytic bed (15).
3. A high efficiency hydrogenation reactor according to claim 1, characterized in that: A bottom support frame (6) is provided on the outer surface of the lower end of the hydrogenation reactor body (1), a side suspension member (8) is fixedly connected to the left outer surface of the bottom support frame (6), and an anti-skid shock-absorbing pad (7) is fixedly connected to the outer surface of the lower end of the bottom support frame (6).
4. A high efficiency hydrogenation reactor according to claim 3, characterized in that: The upper outer surface of the bottom support frame (6) is fixedly connected to an arc pad (5), the upper outer surface of the arc pad (5) is fixedly connected to the outer wall of the hydrogenation reactor body (1), and the front end outer surface of the feed pipe (3) is provided with a plug (4).
5. A high efficiency hydrogenation reactor according to claim 1, characterized in that: A first circular mounting hole adapted to the feed pipe (3) is provided on the front end outer surface of the hydrogenation reactor body (1), and the hydrogenation reactor body (1) is fixedly connected to the feed pipe (3) via the first circular mounting hole.
6. A high efficiency hydrogenation reactor according to claim 2, characterized in that: A first circular hole matched with the first stop valve (2) is formed on the front end outer surface of the hydrogenation reactor body (1), and the hydrogenation reactor body (1) is movably connected to the first stop valve (2) via the first circular hole. A second circular hole matched with the second stop valve (9) is formed on the rear end outer surface of the hydrogenation reactor body (1), and the hydrogenation reactor body (1) is movably connected to the second stop valve (9) via the second circular hole.
7. A high efficiency hydrogenation reactor according to claim 3, characterized in that: A first hanging hole and a second hanging hole are provided on the left outer surface of the side hanging piece (8), and the second hanging hole is located below the first hanging hole.