Regeneration reactor for sulfolane solvent

Abstract

The utility model discloses a regeneration reactor for a sulfolane solvent, which comprises a regeneration reactor body, the liquid inlet end of the regeneration reactor body is communicated with a filter silo through a connecting pipe, a filter screen plate is arranged in the filter silo, the liquid inlet end of the filter silo is provided with a liquid inlet pipe, and the liquid inlet pipe is communicated with the liquid inlet end of the regeneration reactor body. A first three-way control valve is arranged on the liquid inlet pipe, a second three-way control valve is arranged on the connecting pipe, the inferior sulfolane solvent is injected into the liquid inlet bin through the liquid supply pipe along the side wall of the liquid inlet bin in the tangential direction, and the inferior sulfolane solvent generates rotational flow, so that the inferior sulfolane solvent is recycled, and the regeneration efficiency of the inferior sulfolane solvent is improved. Therefore, large-particle solid impurities mixed in the inferior sulfolane solvent are collected downwards under the action of gravity, and small-particle solid impurities in the inferior sulfolane solvent are separated by utilizing the filter screen plate in the filter silo, so that the overall operation stability of the regeneration device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfolane solvent regeneration equipment, in particular to a regeneration reactor for sulfolane solvent. Background Art

[0002] The sulfolane solvent in the benzene extraction device will deteriorate during use, so the inferior sulfolane solvent needs to be regenerated. The Chinese patent application with the authorization announcement number CN215586504U discloses a regeneration reactor for sulfolane solvent, which is used to solve the problem that the traditional regeneration reactor is filled with alkaline anion exchange resin, the flow gap is small, the processing efficiency is low, and the solid impurities carried in the liquid easily block the flow gap, and the equipment cannot operate normally; however, in this scheme, the design of the S-shaped return flow channel allows the sulfolane solvent to flow smoothly, but also makes it difficult for the solid impurities entrained in the solvent to settle downward under the action of gravity. Therefore, the solid impurities in the sulfolane solvent will be deposited at the bottom of the shell cavity and discharged regularly. The technical purpose is difficult to achieve, resulting in a large amount of solid impurities in the regenerated sulfolane solvent, affecting the regeneration quality of the sulfolane solvent. In view of this, in-depth research was conducted on the above-mentioned problems, and thus this case was created. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a regeneration reactor for sulfolane solvent, which solves the problems raised in the background technology.

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions: a regeneration reactor for sulfolane solvent, comprising a regeneration reactor body, the liquid inlet end of the regeneration reactor body is connected to the filter silo through a connecting pipe, a filter screen is arranged in the filter silo, a liquid inlet pipe is arranged at the liquid inlet end of the filter silo, a first three-way control valve is arranged on the liquid inlet pipe, a second three-way control valve is arranged on the connecting pipe, one end of the second three-way control valve is connected to a backwashing assembly, one end of the liquid inlet pipe is connected to a booster pump, and the liquid inlet end of the booster pump is connected to a gravity separation assembly;

[0005] The gravity separation component includes a liquid inlet bin, a conical bucket and an extraction tube. The conical bucket is arranged on the lower end of the liquid inlet bin. A liquid supply tube is arranged on the side wall of the liquid inlet bin along the tangential direction. One end of the liquid supply tube is connected to a liquid supply pump. The liquid inlet end of the liquid supply pump is connected to a storage bin for inferior sulfolane solvent. The extraction tube is inserted into the liquid inlet bin and a filter mesh cylinder is arranged at the lower end. The upper end of the extraction tube is connected to a booster pump.

[0006] The inner annular surface of the conical bucket is provided with a spiral guide plate.

[0007] The filtering silo comprises a cylindrical silo and a conical head, wherein the conical head is assembled on both ends of the cylindrical silo through flanges.

[0008] The above-mentioned backwashing component includes an injection pipe, a pressure pump and a pure water tank. One end of the injection pipe is connected to the second three-way control valve, the liquid outlet end of the pressure pump is connected to the injection pipe, and the liquid inlet end is connected to the pure water tank.

[0009] The liquid injection pipe is provided with a pressure gauge.

[0010] The outlet end of the first three-way control valve is connected with a sewage pipe, and the sewage pipe is communicated with the lower end of the conical bucket.

[0011] The utility model provides a regeneration reactor for sulfolane solvent. It has the following beneficial effects: the regeneration reactor for sulfolane solvent improves the existing regeneration reactor body, and adds a filter silo and a gravity separation component at the liquid inlet end of the regeneration reactor body. When in use, the inferior sulfolane solvent is injected into the liquid inlet bin through the liquid supply pipe along the side wall of the liquid inlet bin in the tangential direction by using a liquid supply pump, and the inferior sulfolane solvent is caused to generate a vortex, so that the large particles of fixed impurities mixed in the inferior sulfolane solvent are collected downward under the action of gravity, and the supernatant is pumped out by a booster pump and injected into the filter silo under pressure, and the small particles of solid impurities in the inferior sulfolane solvent are separated by the filter screen plate in the filter silo, and the sulfolane solvent after secondary filtration further enters the regeneration reactor body and contacts with the alkaline anion exchange resin for regeneration, and the filter screen plate inside the filter silo can be regularly backwashed in conjunction with the backwashing component to avoid the small particles of solid impurities blocking the filter screen plate, thereby ensuring the overall operation stability of the regeneration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of a regeneration reactor for sulfolane solvent described in the utility model.

[0013] Figure 2 It is a partial enlarged structural schematic diagram of the filter silo described in the utility model.

[0014] In the figure: 1. Regeneration reactor body; 2. Connecting pipe; 3. Filter silo; 4. Filter screen; 5. Liquid inlet pipe; 6. First three-way control valve; 7. Second three-way control valve; 8. Booster pump; 9. Liquid inlet bin; 10. Conical bucket; 11. Extraction pipe; 12. Liquid supply pipe; 13. Liquid supply pump; 14. Inferior sulfolane solvent storage bin; 15. Filter screen; 16. Spiral guide plate; 17. Cylindrical silo; 18. Conical head; 19. Flange; 20. Liquid injection pipe; 21. Pressure pump; 22. Pure water tank; 23. Pressure gauge; 24. Drain pipe. DETAILED DESCRIPTION

[0015] 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.

[0016] Embodiment: In conjunction with the specification Figure 1-2 It can be seen that in order to solve the problem in the prior art that the sulfolane solvent after regeneration in the traditional regeneration reactor contains a large amount of solid impurities, which affects the regeneration quality of the sulfolane solvent, a regeneration reactor for the sulfolane solvent is specifically designed, wherein the liquid inlet end of the regeneration reactor body 1 is connected to the filter silo 3 through a connecting pipe 2, a filter screen plate 4 is arranged in the filter silo 3, a liquid inlet pipe 5 is arranged at the liquid inlet end of the filter silo 3, a first three-way control valve 6 is arranged on the liquid inlet pipe 5, a second three-way control valve 7 is arranged on the connecting pipe 2, and the second three-way control valve 7 is arranged on the connecting pipe 2. One end of the control valve 7 is connected to a backwashing assembly, one end of the liquid inlet pipe 5 is connected to a booster pump 8, and the liquid inlet end of the booster pump 8 is connected to the gravity separation assembly; the gravity separation assembly includes a liquid inlet bin 9, a conical bucket 10 and an extraction pipe 11, the conical bucket 10 is arranged on the lower end of the liquid inlet bin 9, and a spiral guide plate 16 is arranged on the inner ring surface of the conical bucket 10. A liquid supply pipe 12 is arranged on the side wall of the liquid inlet bin 9 along the tangential direction, and one end of the liquid supply pipe 12 is connected to a liquid supply pump 13, and the liquid inlet end of the liquid supply pump 13 is connected to the inferior sulfolane solvent storage bin 14, and the extraction pipe 11 is connected to the liquid inlet bin 9. The invention discloses a regeneration reactor body 11, which is inserted into the liquid inlet bin 9 and has a filter screen cylinder 15 at the lower end. The upper end of the extraction pipe 11 is connected to the booster pump 8. The existing regeneration reactor body 1 is improved. A filter silo 3 and a gravity separation component are added to the liquid inlet end of the regeneration reactor body 1. When in use, the low-quality sulfolane solvent is injected into the liquid inlet bin 9 along the tangential direction along the side wall of the liquid inlet bin 9 through the liquid supply pipe 12 by the liquid supply pump 13, and the low-quality sulfolane solvent is made to generate a swirl flow, so that the large particles of fixed impurities mixed in the low-quality sulfolane solvent are separated by gravity. The liquid is collected downward, and the supernatant is pumped out by the booster pump 8 and injected into the filter silo 3 under pressure. The small solid impurities in the inferior sulfolane solvent are separated by the filter screen plate 4 in the filter silo 3. The sulfolane solvent after secondary filtration further enters the regeneration reactor body 1 and contacts with the alkaline anion exchange resin for regeneration. At the same time, the filter screen plate 4 inside the filter silo 3 can be backwashed regularly in conjunction with the backwashing component to avoid the small solid impurities from clogging the filter screen plate 4, thereby ensuring the overall operation stability of the regeneration device.

[0017] In the specific implementation process, the above-mentioned filtering silo 3 includes a cylindrical silo 17 and a conical head 18, and the conical head 18 is assembled on both ends of the cylindrical silo 17 through a flange 19, wherein the backwashing assembly includes an injection pipe 20, a pressure pump 21 and a pure water tank 22, one end of the injection pipe 20 is connected to the second three-way control valve 7, the liquid outlet end of the pressure pump 21 is connected to the injection pipe 20, and the liquid inlet end is connected to the pure water tank 22; a pressure gauge 23 is provided on the above-mentioned injection pipe 20, wherein the outlet end of the first three-way control valve 6 is connected to a sewage pipe 24, and the sewage pipe 24 is connected to the lower end of the conical bucket 10, and the use When the equipment has been running for a period of time or during the maintenance of the regeneration reactor body 1, adjust the conduction direction of the first three-way control valve 6 and the second three-way control valve 7, start the pressure pump 21, use the pressure pump 21 to extract the cleaning water in the pure water tank, and inject it into the filter silo 3 through the connecting pipe 2, and use the head pressure to reversely flush the filter screen plate 4. The washed sewage is further discharged into the sewage pipe 24 through the first three-way control valve 6. At the same time, the solid particulate impurities precipitated by gravity in the conical bucket 10 can also be discharged through the sewage pipe 24. The structure is simple, the operation is convenient, and the degree of automation is high.

[0018] 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 regeneration reactor for a sulfolane solvent, comprising a regeneration reactor body, characterized in that: The liquid inlet end of the regeneration reactor body is connected to the filter silo through a connecting pipe, a filter screen is arranged in the filter silo, a liquid inlet pipe is arranged at the liquid inlet end of the filter silo, a first three-way control valve is arranged on the liquid inlet pipe, a second three-way control valve is arranged on the connecting pipe, one end of the second three-way control valve is connected to a backwashing assembly, one end of the liquid inlet pipe is connected to a booster pump, and the liquid inlet end of the booster pump is connected to the gravity separation assembly; The gravity separation component includes a liquid inlet bin, a conical bucket and an extraction tube. The conical bucket is arranged on the lower end of the liquid inlet bin. A liquid supply tube is arranged on the side wall of the liquid inlet bin along the tangential direction. One end of the liquid supply tube is connected to a liquid supply pump. The liquid inlet end of the liquid supply pump is connected to a storage bin for inferior sulfolane solvent. The extraction tube is inserted into the liquid inlet bin and a filter mesh cylinder is arranged at the lower end. The upper end of the extraction tube is connected to a booster pump.

2. A regeneration reactor for sulfolane solvent according to claim 1, characterized in that: The inner annular surface of the conical bucket is provided with a spiral guide plate.

3. A regeneration reactor for sulfolane solvent according to claim 1, characterized in that: The filtering silo comprises a cylindrical silo and a conical head, and the conical head is assembled on both ends of the cylindrical silo through flanges.

4. A regeneration reactor for sulfolane solvent according to claim 1, characterized in that: The backwashing assembly includes an injection pipe, a pressure pump and a pure water tank. One end of the injection pipe is connected to the second three-way control valve, the liquid outlet end of the pressure pump is connected to the injection pipe, and the liquid inlet end is connected to the pure water tank.

5. A regeneration reactor for sulfolane solvent according to claim 4, characterized in that: The injection pipe is provided with a pressure gauge.

6. A regeneration reactor for sulfolane solvent according to claim 1, characterized in that: The outlet end of the first three-way control valve is connected with a sewage pipe, and the sewage pipe is communicated with the lower end of the cone bucket.

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