Hydrated catalyst rinsing apparatus
By designing a hydrated catalyst rinsing device, demineralized water is used to remove broken and fine particles from the catalyst, achieving efficient cleaning of the catalyst, reducing production costs and pressure differentials, and improving catalyst unloading efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO SIYUAN CHEM CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, catalyst blockage leads to increased pressure differentials and frequent catalyst replacements, which increases production costs.
A hydration catalyst rinsing device was designed, which uses demineralized water to rinse the catalyst, remove broken catalyst and fine particles, and realizes the recycling of demineralized water through a filter screen and a water collection tank. A discharge jet is installed on the discharge pipeline to improve the discharge efficiency.
It effectively solved the catalyst blockage problem, reduced the pressure difference, reduced the consumption of demineralized water and production costs, and improved the catalyst unloading efficiency.
Smart Images
Figure CN224486950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of catalyst technology, specifically to a rinsing device for hydrated catalysts. Background Technology
[0002] The butene hydration reaction is a crucial process in chemical production. It uses high-purity butene and process water as starting materials. Under certain temperature and pressure conditions, the butene reacts with water in an adiabatic reactor equipped with a heat-resistant, strong acid cation exchange resin hydration catalyst to produce sec-butanol.
[0003] To maximize catalyst efficiency and optimize the reaction process, the hydrated catalyst was divided into four sections and sequentially loaded into the reactor. Each catalyst bed layer is like a precise small unit, with water cap structures above and below each layer. These water caps not only help to evenly distribute the feed water but also protect the catalyst bed to a certain extent.
[0004] However, as the reaction continues, the temperature gradually increases. In this environment, some catalyst particles may break down due to physical or chemical factors, or there may have been some fine particles present to begin with. These "fragments" and "small particles" gradually deposit and clog the pores of the water cap in the flowing water and butene. Once the water cap is clogged, much like a pipe blocked by silt, the flow of water and gas becomes difficult, causing a sharp increase in the pressure differential of the catalyst bed, which adds an extra burden to the reactor. When the pressure differential rises to a certain level, the reaction efficiency will naturally be affected. Operators will try to adjust process parameters, such as reducing the feed water flow in a single stage or reducing the butene load entering the reactor, hoping to alleviate the clogging. However, in many cases, these conventional "emergency measures" are ineffective and cannot fundamentally solve the problem. Therefore, the clogging has seriously affected the normal operation and yield of the reactor.
[0005] Faced with this situation, the most direct and effective solution is to halt production, remove all the old or partially ineffective catalyst, and reload a batch of brand-new catalyst to restore the reactor to its former vitality. While this process is tedious, it is crucial for ensuring the continuous and stable progress of the butene hydration reaction. However, this method significantly increases production costs. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a hydration catalyst rinsing device. By using demineralized water to rinse the hydration catalyst, broken catalyst and fine particles are removed, thus solving the problem of high cost caused by the pressure difference increasing due to the blockage of the water cap and the need to replace the catalyst with a new one before the service life is reached.
[0007] The technical solution of this utility model is as follows:
[0008] A hydrated catalyst rinsing device includes a catalyst rinsing tank, which is connected to a demineralized water tank via an inlet water pipeline. The inlet water pipeline is equipped with a demineralized water pump and an inlet valve. The catalyst rinsing tank is connected to a drainage ditch via an upper overflow pipeline. The drainage ditch is connected to a water collection tank via an outlet water pipeline. The outlet water pipeline is equipped with a filter screen. The water collection tank is connected to the catalyst rinsing tank via a water circulation pipeline. The water circulation pipeline is equipped with a water circulation pump and a water circulation valve. The bottom of the catalyst rinsing tank is connected to a discharge pipeline, which is equipped with a discharge valve.
[0009] Preferably, the unloading pipeline is equipped with an unloading jet, the unloading jet is connected to an unloading water pipeline, the unloading water pipeline is connected to a water circulation pipeline, and an unloading water valve is installed on the unloading water pipeline.
[0010] Preferably, the water collection tank and the demineralized water tank are each equipped with a level gauge.
[0011] Preferably, the demineralized water tank is connected to a water supply pipeline, and a water supply valve is installed on the water supply pipeline.
[0012] Preferably, a sight glass is provided in the middle of the catalyst rinsing tank.
[0013] Preferably, the water inlet pipeline is connected to the lower part of the catalyst rinsing tank.
[0014] Preferably, the demineralized water pump is provided with a demineralized water pump inlet valve and a demineralized water pump outlet valve at its inlet and outlet, respectively.
[0015] Preferably, the demineralized water tank is provided with a demineralized water tank outlet valve at the outlet.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] 1. The hydration catalyst rinsing device of this utility model uses demineralized water to rinse the hydration catalyst, removing broken catalyst and fine particles, thus solving the problem of high cost caused by increased pressure differential due to clogging of the water cap and the need to replace the catalyst before it reaches its service life.
[0018] 2. The hydration catalyst rinsing device of this utility model utilizes a filter screen and a water collection tank to achieve the recyclability of demineralized water, reduce the consumption of demineralized water, and lower costs.
[0019] 3. The hydration catalyst rinsing device of this utility model has a discharge jet installed on the discharge pipeline, which can greatly improve the catalyst discharge efficiency. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the hydration catalyst rinsing device of this utility model.
[0021] In the diagram, 1. Catalyst rinsing tank; 2. Inlet water pipeline; 3. Demineralized water tank; 4. Demineralized water pump; 5. Inlet water valve; 6. Overflow pipeline; 7. Drainage ditch; 8. Outlet water pipeline; 9. Water collection tank; 10. Filter screen; 11. Water circulation pipeline; 12. Water circulation pump; 13. Water circulation valve; 14. Discharge pipeline; 15. Discharge valve; 16. Discharge injector; 17. Discharge water pipeline; 18. Discharge water valve; 19. Makeup water pipeline; 20. Makeup water valve; 21. Demineralized water pump inlet valve; 22. Demineralized water pump outlet valve; 23. Demineralized water tank outlet valve. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.
[0023] Example 1
[0024] like Figure 1 As shown, this embodiment provides a hydration catalyst rinsing device, including a catalyst rinsing tank 1, with a sight glass installed in the middle of the catalyst rinsing tank 1; the catalyst rinsing tank 1 is connected to a demineralized water tank 3 via a water inlet pipeline 2, the water inlet pipeline 2 being connected to the lower part of the catalyst rinsing tank 1; a demineralized water tank outlet valve 23 is installed at the outlet of the demineralized water tank 3; a demineralized water pump 4 and an inlet valve 5 are installed on the water inlet pipeline 2; a demineralized water pump inlet valve 21 and a demineralized water pump outlet valve 22 are respectively installed at the inlet and outlet of the demineralized water pump 4. By adding demineralized water and the catalyst to be rinsed into the catalyst rinsing tank 1, the catalyst can be rinsed. The catalyst rinsing tank 1 is connected to a drainage ditch 7 via an overflow pipe 6 at the top. The drainage ditch 7 is connected to a water collection tank 9 via a water outlet pipe 8. A filter screen 10 is installed on the water outlet pipe 8. After rinsing, fine particles and broken catalyst in the catalyst overflow with the water and are discharged into the drainage ditch 7. The water that overflows after being filtered by the filter screen 10 is temporarily stored in the water collection tank 9. The water collection tank 9 is connected to the catalyst rinsing tank 1 via a water circulation pipe 11. A water circulation pump 12 and a water circulation valve 13 are installed on the water circulation pipe 11. The demineralized water in the water collection tank 9 can be pumped into the catalyst rinsing tank 1 by the water circulation pump 12 to participate in the catalyst rinsing again, realizing the recycling of demineralized water. The bottom of the catalyst rinsing tank 1 is connected to a discharge pipe 14, and a discharge valve 15 is installed on the discharge pipe 14. After rinsing, the catalyst is discharged from the discharge pipe 14 at the bottom of the catalyst rinsing tank 1 and bagged, thus completing the catalyst rinsing.
[0025] Working principle:
[0026] After the catalyst is unloaded from the hydration reactor and bagged, it is transferred to the vicinity of the catalyst rinsing tank 1. Demineralized water is collected in the demineralized water tank 3. The demineralized water pump 4 is started, and the demineralized water is pumped along the inlet pipe 2 of the catalyst rinsing tank 1 to the sight glass in the middle of the tank. The water level and the amount of catalyst floating in the water can be observed visually through the sight glass. The hydrated catalyst is poured into the catalyst rinsing tank 1 from the top, and the amount of demineralized water in the tank is controlled by the inlet valve 5. Fine particles and broken catalyst in the catalyst overflow with the water, flowing into the drainage ditch 7 along the overflow pipe 6. When no fine particles or broken catalyst are observed in the overflow water, the inlet valve 5 is closed, the discharge valve 15 is opened, and the rinsed catalyst is bagged.
[0027] Water collection tank 9 and demineralized water tank 3 are each equipped with a level gauge. Demineralized water tank 3 is connected to a water supply line 19, and a water supply valve 20 is installed on the water supply line 19. The demineralized water in drainage ditch 7 is filtered by filter screen 10 on outlet pipeline 8 to remove fine particles and broken catalyst before entering water collection tank 9 for temporary storage. When the level gauge detects that the water level in water collection tank 9 is too high or the water level in demineralized water tank 3 is too low, the outlet valve of demineralized water pump 4 can be closed, demineralized water pump 4 can be stopped, water circulation pump 12 can be started and water circulation valve 13 can be opened. The demineralized water in water collection tank 9 enters catalyst rinsing tank 1 through water circulation pipeline 11 to rinse the catalyst, realizing the recycling of demineralized water.
[0028] Example 2
[0029] Based on Example 1, such as Figure 1 As shown, a discharge jet 16 (a Venturi jet can be used) is installed on the discharge pipeline 14. The discharge jet 16 is connected to the discharge water pipeline 17. The discharge water pipeline 17 is connected to the water circulation pipeline 11. A discharge water valve 18 is installed on the discharge water pipeline 17.
[0030] Part of the demineralized water in the water collection tank 9 enters the catalyst rinsing tank 1 as rinsing water, while the other part enters the unloading ejector 16 through the unloading water pipeline 17. The water forms a high-speed jet through the nozzle of the unloading ejector 16, converting pressure energy into kinetic energy. The high-speed water flow generates negative pressure (Venturi effect) around the mixing chamber, drawing in the mixture of the pumped medium water and catalyst. The kinetic energy of the water flow is used to transport the catalyst particles for unloading.
Claims
1. A hydration catalyst rinsing device, characterized in that, The catalyst washing tank (1) is connected to a demineralized water tank (3) via an inlet water pipeline (2). A demineralized water pump (4) and an inlet water valve (5) are installed on the inlet water pipeline (2). The catalyst washing tank (1) is connected to a drainage ditch (7) via an overflow pipeline (6) at the top. The drainage ditch (7) is connected to a water collection tank (9) via an outlet water pipeline (8). A filter screen (10) is installed on the outlet water pipeline (8). The water collection tank (9) is connected to the catalyst washing tank (1) via a water circulation pipeline (11). A water circulation pump (12) and a water circulation valve (13) are installed on the water circulation pipeline (11). A discharge pipeline (14) is connected to the bottom of the catalyst washing tank (1). A discharge valve (15) is installed on the discharge pipeline (14).
2. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, The unloading pipeline (14) is equipped with an unloading jet (16), the unloading jet (16) is connected to an unloading water pipeline (17), the unloading water pipeline (17) is connected to a water circulation pipeline (11), and an unloading water valve (18) is installed on the unloading water pipeline (17).
3. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, The water collection tank (9) and the demineralized water tank (3) are each equipped with a level gauge.
4. The hydration catalyst rinsing apparatus as described in claim 1 or 3, characterized in that, The demineralized water tank (3) is connected to a water supply line (19), and a water supply valve (20) is installed on the water supply line (19).
5. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, A sight glass is provided in the middle of the catalyst rinsing tank (1).
6. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, The water inlet pipeline (2) is connected to the lower part of the catalyst rinsing tank (1).
7. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, The demineralized water pump (4) is equipped with a demineralized water pump inlet valve (21) and a demineralized water pump outlet valve (22) at its inlet and outlet, respectively.
8. The hydration catalyst rinsing apparatus as described in claim 1, characterized in that, The demineralized water tank (3) is equipped with a demineralized water tank outlet valve (23) at its outlet.