CN212142541U - Catalyst recycling device in continuous hydrogenation reaction process - Google Patents
Catalyst recycling device in continuous hydrogenation reaction process Download PDFInfo
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- CN212142541U CN212142541U CN202020571255.4U CN202020571255U CN212142541U CN 212142541 U CN212142541 U CN 212142541U CN 202020571255 U CN202020571255 U CN 202020571255U CN 212142541 U CN212142541 U CN 212142541U
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- hydrogenation reaction
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- 239000003054 catalyst Substances 0.000 title claims abstract description 65
- 238000004064 recycling Methods 0.000 title claims abstract description 29
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012295 chemical reaction liquid Substances 0.000 abstract description 9
- 239000008187 granular material Substances 0.000 abstract description 6
- 230000002779 inactivation Effects 0.000 abstract description 5
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 14
- 239000012071 phase Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 229910000564 Raney nickel Inorganic materials 0.000 description 5
- 238000010907 mechanical stirring Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 3
- 239000007868 Raney catalyst Substances 0.000 description 2
- 239000002638 heterogeneous catalyst Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010024796 Logorrhoea Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of catalyst recycling and discloses a catalyst recycling device in the continuous hydrogenation reaction process, which comprises a reactor, wherein the upper part of the reactor is provided with an overflow port, and the bottom of the reactor is provided with a reflux port; the upper part of the settling tank is provided with a feed inlet, the bottom of the settling tank is provided with a discharge port, the feed inlet is communicated with the overflow port through a first pipeline, and the discharge port is communicated with the reflux port through a second pipeline. The utility model discloses a communicate reactor and settling cask for reaction liquid in the reactor secretly gets into the settling cask through first pipeline with the catalyst, the catalyst of big granule sinks to the bottom in the settling cask, the catalyst suspension of low activity or inactivation is in solution, the large granule catalyst of settling cask bottom gets back to the retrieval and utilization in the reactor through the second pipeline, catalyst retrieval and utilization in the continuous process has been realized, the utilization ratio of catalyst has both been improved, also avoided the unified energy and the loss of resource that subsides the recovery and recycle and cause with the catalyst.
Description
Technical Field
The utility model relates to a catalyst retrieval and utilization technical field especially relates to a catalyst retrieval and utilization device among continuous hydrogenation reaction process.
Background
Raney nickel, a hydrogenation catalyst, is a solid heterogeneous catalyst consisting of fine grains of nickel-aluminum alloy with a porous structure. The raney nickel is fine gray powder on the surface, but each tiny particle in the powder is a three-dimensional porous structure from a microscopic view, the porous structure greatly increases the surface area, and the extremely large surface area brings high catalytic activity.
In a process in which a hydrogenation reaction is carried out in a reactor with mechanical agitation, a part of the Raney nickel catalyst is crushed and deactivated by beating with stirring paddles. In the subsequent treatment step of the hydrogenation reaction process, the raney nickel catalyst is completely treated as impurities, so that a large amount of solid waste is generated, and meanwhile, the waste of part of the catalyst which is not deactivated is also caused. The recycling rate of resources can be improved and the energy consumption loss can be reduced by recycling the high-activity part in the catalyst.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a catalyst retrieval and utilization device among continuous hydrogenation reaction process to solve the problem that the utilization ratio of raney nickel catalyst is low.
To achieve the purpose, the utility model adopts the following technical proposal:
a catalyst recycling device in the continuous hydrogenation reaction process comprises:
the upper part of the reactor is provided with an overflow port, and the bottom of the reactor is provided with a reflux port;
the upper part of the settling tank is provided with a feed inlet, the bottom of the settling tank is provided with a discharge port, the feed inlet is communicated with the overflow port through a first pipeline, and the discharge port is communicated with the reflux port through a second pipeline.
Optionally, the overflow outlet is located higher than the feed inlet.
Optionally, the position of the backflow port is lower than the discharge port.
Optionally, the bottom of the settling tank is in an inverted cone shape, and the discharge port is arranged at the cone tip of the inverted cone shape.
Optionally, the top of the reactor is provided with a first gas phase balance port, the top of the settling tank is provided with a second gas phase balance port, and the first gas phase balance port is communicated with the second gas phase balance port through a third pipeline.
Optionally, a clear liquid outlet is arranged in the middle of the settling tank, and the clear liquid outlet is lower than the feed inlet and higher than the discharge outlet.
Optionally, the first pipeline and the second pipeline are both straight pipes.
Optionally, a stirrer is arranged in the inner cavity of the reactor, and blades of the stirrer are positioned at the bottom of the inner cavity.
Optionally, the reactor further comprises a driving mechanism, the driving mechanism is located above the reactor, and an output end of the driving mechanism extends into the inner cavity and is connected to the stirrer.
Optionally, the catalyst recycling device in the continuous hydrogenation reaction process further comprises a filter screen, and the filter screen is arranged in the settling tank and covers the clear liquid outlet.
The utility model has the advantages that:
the utility model discloses a catalyst retrieval and utilization device among continuous hydrogenation reaction process for through first pipeline and second pipeline with reactor and settling cask intercommunication, make the reaction liquid in the reactor smuggle the catalyst secretly and get into the settling cask through first pipeline, the catalyst of big granule sinks to the bottom because of the action of gravity in the settling cask, the catalyst of low activity or inactivation is because mechanical stirring produces garrulous end, the suspension is in solution, the large granule catalyst of settling cask bottom can get back to the reactor through the second pipeline and retrieval and utilization. The process is continuously realized in the continuous hydrogenation process, so that the catalyst recycling in the continuous process is realized, the utilization rate of the catalyst is improved, and the loss of energy and resources caused by uniform sedimentation and recycling of the catalyst is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a catalyst recycling device in the continuous hydrogenation reaction process of the present invention.
In the figure:
1. a reactor; 2. a settling tank; 3. a first pipeline; 4. a second pipeline; 5. a third pipeline; 101. an overflow port; 102. a return port; 103. a first vapor phase equilibrium port; 104. a stirrer; 105. a drive mechanism; 201. a feed inlet; 202. a discharge port; 203. a second vapor phase equilibrium port; 204. and (5) a clear liquid outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The utility model provides a catalyst recycling device in continuous hydrogenation reaction process, as shown in figure 1, include:
the upper part of the reactor 1 is provided with an overflow port 101, and the bottom of the reactor is provided with a return port 102;
the settling tank 2 is provided with a feeding port 201 at the upper part and a discharging port 202 at the bottom, the feeding port 201 is communicated with the overflow port 101 through a first pipeline 3, and the discharging port 202 is communicated with the return port 102 through a second pipeline 4.
The utility model discloses a first pipeline 3 and second pipeline 4 communicate reactor 1 and settling cask 2 for the reaction liquid among the reactor 1 smugglies the catalyst secretly and gets into settling cask 2 through first pipeline 3, and the catalyst of big granule sinks to the bottom because of the action of gravity among the settling cask 2, and the catalyst of low activity or inactivation is because mechanical stirring produces the end of breakage, and the end of breakage suspends in solution, and the large granule catalyst of settling cask 2 bottom can get back to through second pipeline 4 and retrieval and utilization among the reactor 1. The process is continuously realized in the continuous hydrogenation process, so that the catalyst recycling in the continuous process is realized, the utilization rate of the catalyst is improved, and the loss of energy and resources caused by uniform sedimentation and recycling of the catalyst is avoided.
Optionally, in the present invention, as shown in fig. 1, the position of the overflow port 101 is higher than the feed port 201. Therefore, even under the condition of not needing external power driving, the upper layer reaction liquid in the reactor 1 can enter the settling tank 2 through the first pipeline 3 by the action of gravity and the principle of a communicating vessel, and not only has continuity, but also does not need an additional power source.
Further, the return port 102 is positioned lower than the discharge port 202. It can be understood that, in the same relationship with the overflow port 101 and the feed port 201, the discharge port 202 is located at a high position, and the return port 102 is located at a low position, so that the large-particle catalyst in the settling tank 2 moves under the action of gravity, and the principle is simple and easy to implement.
As shown in fig. 1, the bottom of the settling tank 2 is in an inverted cone shape, and the discharge port 202 is arranged at the tip of the inverted cone shape. The inverted conical shape is more favorable for settling of large-particle catalyst at the bottom and forming a larger pressure difference, which facilitates the flow of the reaction liquid in the discharge port 202 to the return port 102.
Further, the top of the reactor 1 is provided with a first gas phase balance port 103, the top of the settling tank 2 is provided with a second gas phase balance port 203, and the first gas phase balance port 103 is communicated with the second gas phase balance port 203 through a third pipeline 5. The purpose of the gas phase equalizing port is to equalize the pressure between the reactor 1 and the settling tank 2, and there is reason for the directional flow of the reaction liquid between the reactor 1 and the settling tank 2.
The utility model discloses in, the middle part of settling cask 2 is equipped with clear liquid export 204, and the position of clear liquid export 204 is less than feed inlet 201, is higher than discharge gate 202. In the continuous hydrogenation process, continuous stirring and reaction are required, the particle state of the catalyst changes, and some deactivated particles exist in the form of small particles or powder, so that the small particles can be suspended in the reaction liquid, and large particles can precipitate downwards, and based on the principle, layering can be formed in the settling tank 2, the lower layer has more large-particle catalysts, the upper layer has more low-activity or deactivated small-particle catalysts, and discharge treatment is required, so the settling speed and settling position of the catalyst in the settling tank 2 are considered for the arrangement of the clear liquid outlet 204. In a preferred embodiment, a filter screen may also be added at the position of the clear liquid outlet 204, the filter screen is arranged in the settling tank 2 to cover the clear liquid outlet 204, and the aperture of the filter screen is to avoid the outflow of large-particle catalyst to cause waste or blockage according to the filtering requirement.
Wherein, the first pipeline 3 and the second pipeline 4 are both straight pipes. The straight pipe can ensure that the reaction liquid between two communicated ports flows directly and smoothly, and silting is avoided. Generally, the straight tube material is selected according to the reaction liquid, such as a steel tube or a plastic tube.
In order to accelerate the hydrogenation reaction process in the reactor 1, a stirrer 104 is arranged in the inner cavity of the reactor 1, and blades of the stirrer 104 are positioned at the bottom of the inner cavity. It should be noted that the stirrer 104 maintains the same stirring direction during the operation, and the rotation of the stirrer 104 is more beneficial to the flow of the large-particle catalyst in the settling tank 2 to the reactor 1 because the stirrer 104 is located near the position of the return opening 102.
The reactor 1 further comprises a driving mechanism 105, the driving mechanism 105 is positioned above the reactor 1, and the output end of the driving mechanism 105 extends into the inner cavity and is connected to the stirrer 104. The utility model provides a actuating mechanism 105 configures to the motor, and the motor provides power for the agitator for agitator 104 can stir as required, the retrieval and utilization of going on and catalyst of catalytic hydrogenation reaction with higher speed.
In the continuous hydrogenation process, the reaction solution carries the catalyst from the overflow port 101 to the settling tank through the feed port 201 of the settling tank 2 under the action of mechanical stirring, large-particle heterogeneous catalyst (generally with high activity) is deposited at the bottom under the action of gravity, and the catalyst (basically with low activity or inactivation) generated due to the mechanical stirring floats on the surface of the reaction solution. The clear liquid carries the catalyst powder to enter the next working procedure through the clear liquid outlet 204, and the liquid flow generated by the mechanical stirring action in the reactor 1 and the flow speed difference generated by the liquid in the second pipeline 4 and the pressure difference jointly generated under the action of gravity between the discharge port 202 and the return port 102 cause the catalyst at the bottom of the settling tank 2 to flow back to the reactor 1 to continue to participate in the reaction, thereby achieving the effect of recycling the catalyst.
Compared with the traditional catalyst recycling device, the catalyst recycling device of the utility model realizes the online real-time separation and online recycling of the crushed catalyst (low activity or inactivation) and the large-particle catalyst (high activity), and avoids the loss of the energy and the resource brought by the unified settlement and recycling of the used catalyst in the process.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A catalyst recycling device in the continuous hydrogenation reaction process is characterized by comprising:
the upper part of the reactor (1) is provided with an overflow port (101), and the bottom of the reactor is provided with a return port (102);
the upper part of the settling tank (2) is provided with a feeding hole (201), the bottom of the settling tank is provided with a discharging hole (202), the feeding hole (201) is communicated with the overflow port (101) through a first pipeline (3), and the discharging hole (202) is communicated with the return port (102) through a second pipeline (4).
2. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein the position of the overflow port (101) is higher than the position of the feed port (201).
3. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein the position of the reflux opening (102) is lower than the discharge opening (202).
4. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein the bottom of the settling tank (2) is in an inverted cone shape, and the discharge port (202) is arranged at the tip of the inverted cone shape.
5. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein a first gas phase equilibrium port (103) is arranged at the top of the reactor (1), a second gas phase equilibrium port (203) is arranged at the top of the settling tank (2), and the first gas phase equilibrium port (103) is communicated with the second gas phase equilibrium port (203) through a third pipeline (5).
6. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein a clear liquid outlet (204) is provided in the middle of the settling tank (2), and the position of the clear liquid outlet (204) is lower than the feeding port (201) and higher than the discharging port (202).
7. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein the first pipeline (3) and the second pipeline (4) are both straight pipes.
8. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 1, wherein a stirrer (104) is arranged in the inner cavity of the reactor (1), and blades of the stirrer (104) are located at the bottom of the inner cavity.
9. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 8, wherein the reactor (1) further comprises a driving mechanism (105), the driving mechanism (105) is located above the reactor (1), and an output end of the driving mechanism (105) extends into the inner cavity and is connected to the stirrer (104).
10. The catalyst recycling device in the continuous hydrogenation reaction process according to claim 6, further comprising a filter screen disposed in the settling tank (2) covering the clear liquid outlet (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020571255.4U CN212142541U (en) | 2020-04-16 | 2020-04-16 | Catalyst recycling device in continuous hydrogenation reaction process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020571255.4U CN212142541U (en) | 2020-04-16 | 2020-04-16 | Catalyst recycling device in continuous hydrogenation reaction process |
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| Publication Number | Publication Date |
|---|---|
| CN212142541U true CN212142541U (en) | 2020-12-15 |
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|---|---|---|---|
| CN202020571255.4U Active CN212142541U (en) | 2020-04-16 | 2020-04-16 | Catalyst recycling device in continuous hydrogenation reaction process |
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| CN (1) | CN212142541U (en) |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211101 Address after: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee after: Guangdong Zhonggao Technology Co.,Ltd. Address before: No.28 Guanghua North Road, Maoming, Guangdong 525000 Patentee before: Guangdong Zhonghe Plastic Co.,Ltd. Patentee before: Guangdong Zhonggao Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee after: Guangdong Zhonghe High Tech Co.,Ltd. Country or region after: China Address before: 525000 No.1, South ethylene Road, Qijing Town, high tech Zone, Maoming City, Guangdong Province Patentee before: Guangdong Zhonggao Technology Co.,Ltd. Country or region before: China |
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