CN217856060U - Dicyclopentadiene hydrogenation process reaction device - Google Patents
Dicyclopentadiene hydrogenation process reaction device Download PDFInfo
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- CN217856060U CN217856060U CN202221725437.8U CN202221725437U CN217856060U CN 217856060 U CN217856060 U CN 217856060U CN 202221725437 U CN202221725437 U CN 202221725437U CN 217856060 U CN217856060 U CN 217856060U
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- Prior art keywords
- pipe
- reaction kettle
- pipeline
- tank
- dicyclopentadiene
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 97
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 title claims abstract description 33
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000001257 hydrogen Substances 0.000 claims abstract description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000007710 freezing Methods 0.000 claims abstract description 11
- 230000008014 freezing Effects 0.000 claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 238000006317 isomerization reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- LPSXSORODABQKT-UHFFFAOYSA-N tetrahydrodicyclopentadiene Chemical compound C1C2CCC1C1C2CCC1 LPSXSORODABQKT-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000000273 veterinary drug Substances 0.000 description 1
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Abstract
The utility model relates to a dicyclopentadiene hydrogenation technology reaction unit. The technical scheme is as follows: the upper ends of the first elevated tank and the second elevated tank are respectively connected to the dicyclopentadiene buffer tank and the hydrogen storage tank through pipelines, and the lower ends of the first elevated tank and the second elevated tank are respectively connected to the tops of more than one reaction kettle through pipelines; the hydrogen storage tank is respectively connected to the inner cavities of more than one reaction kettle through pipelines, the upper cover of each reaction kettle is connected to the material output pipe through a pipeline, a stirrer and a heating coil are arranged inside each reaction kettle, the outer wall of each reaction kettle is provided with a jacket, the water inlet of each jacket is connected to the circulating water inlet pipe and the freezing water pipe through pipelines, and the water outlet of each jacket is connected to the circulating water return pipe through a pipeline; the water inlet of the heating coil is connected with the low-pressure steam main pipe through a pipeline. The beneficial effects are that: the device has the advantages of continuous production, high preparation efficiency, safety, reliability, effective treatment of tail gas, reduction of energy consumption and production cost.
Description
Technical Field
The utility model relates to a dicyclopentadiene hydrogenation process units, in particular to dicyclopentadiene hydrogenation process reaction unit.
Background
The existing method for preparing bridge type tetrahydro dicyclopentadiene adopts a dicyclopentadiene hydrogenation process, bridge type tetrahydro dicyclopentadiene is taken as an important chemical intermediate, can be used for the fields of producing and synthesizing medical intermediates, pesticide intermediates, veterinary drug intermediates and the like, and has large market demand, but the prior art has the problems that: the efficiency of industrial production is low, and the tail gas is discharged outside and cannot meet the requirement of environmental protection; in addition, the energy is not recycled, so that the energy consumption is high and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dicyclopentadiene hydrogenation process reaction unit to the above-mentioned defect that prior art exists, production efficiency is high, and tail gas obtains effectual processing, reaches the environmental protection requirement, has reduced the energy consumption moreover, has reduced manufacturing cost.
The utility model provides a dicyclopentadiene hydrogenation technology reaction unit, its technical scheme is: the device comprises a first elevated tank (V1101A), a second elevated tank (V1101B), reaction kettles, a stirrer (M), a hydrogen storage tank (2), a dicyclopentadiene buffer tank (3), a low-pressure steam main pipe (4), a circulating water return pipe (5), a circulating water inlet pipe (6), chilled water (7) and a material output pipe (11), wherein the upper ends of the first elevated tank (V1101A) and the second elevated tank (V1101B) are respectively connected to the dicyclopentadiene buffer tank (3) and the hydrogen storage tank (2) through pipelines, and the lower ends of the first elevated tank (V1101A) and the second elevated tank (V1101B) are respectively connected to the tops of more than one reaction kettles through pipelines; the hydrogen storage tank (2) is respectively connected to the inner cavities of more than one reaction kettle through pipelines, the upper cover of each reaction kettle is connected to the material output pipe (11) through a pipeline, a stirrer (M) and a heating coil (R2) are arranged inside each reaction kettle, a jacket (R1) is arranged on the outer wall of each reaction kettle, a water inlet of the jacket (R1) is connected to the circulating water inlet pipe (6) and the freezing water pipe (7) through pipelines, and a water outlet of each jacket is connected to the circulating water return pipe (5) through a pipeline; the water inlet of the heating coil (R2) is connected with the low-pressure steam main pipe (4) through a pipeline.
Preferably, the upper cover of the reaction kettle is connected with the high-pressure tail gas main pipe (9) and the vacuum gas main pipe (10) through pipelines.
Preferably, the upper cover of the reaction kettle is connected with a nitrogen storage tank (1) through a pipeline.
Preferably, the tops of the first high-level tank (V1101A) and the second high-level tank (V1101B) are connected to a constant-pressure tail gas pipe (8) through pipelines, respectively.
Preferably, the inner cavities of the first high-level tank (V1101A) and the second high-level tank (V1101B) are provided with coils, the inlets of the coils are connected with a low-pressure steam pipeline (LS), and the outlets of the coils are connected with a steam condensation water return pipeline (SC).
Preferably, valves are respectively arranged on the circulating water inlet pipe (6) and the freezing water pipe (7), and the circulating water inlet pipe (6) and the freezing water pipe (7) are connected in parallel and then connected to the jacket (R1) on the outer wall.
Preferably, the pipeline of the water outlet of the jacket (R1) is connected with the pipeline of the water outlet of the heating coil (R2) in parallel and then is connected to the circulating water return pipe (5).
Preferably, the reaction vessel includes a first reaction vessel (R1101A), a second reaction vessel (R1101B) and a third reaction vessel (R1101C).
The utility model has the advantages that: the utility model is characterized in that dicyclopentadiene as a raw material is sent into a head tank, the dicyclopentadiene is added into a plurality of reaction kettles by utilizing pressure difference, then the supported nickel-based catalyst is sent into the reaction kettles, nitrogen is introduced into the reaction kettles to replace the reaction kettles, then a low-pressure steam flow is opened, steam is introduced into a reaction kettle jacket and a heating coil for heating, a stirrer of the reaction kettles is opened, and the temperature of materials in the reaction kettles is uniformly increased; when the reaction requirement is met, the hydrogen supply flow of the reaction kettle is opened, the hydrogen regulating valve is slowly opened to start feeding hydrogen, when the reaction temperature rises to 120 ℃, the temperature is reduced to control the reaction temperature to be below 115 ℃ until the reaction is completed, and the generated bridge type tetrahydro dicyclopentadiene is fed into a subsequent isomerization process.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the upper drawing: the system comprises a first elevated tank V1101A, a second elevated tank V1101B, a first reaction kettle R1101A, a second reaction kettle R1101B, a third reaction kettle R1101C, a stirrer M, a nitrogen storage tank 1, a hydrogen storage tank 2, a dicyclopentadiene buffer tank 3, a low-pressure steam main pipe 4, a circulating water return pipe 5, a circulating water inlet pipe 6, a chilled water pipe 7, a normal-pressure tail gas pipe 8, a high-pressure tail gas main pipe 9, a vacuum gas main pipe 10, a material output pipe 11, a low-pressure steam pipeline LS and a steam condensation return pipeline SC.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1, referring to fig. 1, the technical scheme of the reaction device for dicyclopentadiene hydrogenation process of the present invention is as follows: the device comprises a first elevated tank V1101A, a second elevated tank V1101B, a reaction kettle, a stirrer M, a hydrogen storage tank 2, a dicyclopentadiene buffer tank 3, a low-pressure steam main pipe 4, a circulating water return pipe 5, a circulating water inlet pipe 6, chilled water 7 and a material output pipe 11, wherein the upper ends of the first elevated tank V1101A and the second elevated tank V1101B are respectively connected to the dicyclopentadiene buffer tank 3 and the hydrogen storage tank 2 through pipelines, and the lower ends of the first elevated tank V1101A and the second elevated tank V1101B are respectively connected to the tops of more than one reaction kettle through pipelines; the hydrogen storage tank 2 is respectively connected to the inner cavities of more than one reaction kettle through pipelines, the upper cover of each reaction kettle is connected to the material output pipe 11 through a pipeline, a stirrer M and a heating coil R2 are arranged inside each reaction kettle, a jacket R1 is arranged on the outer wall of each reaction kettle, the water inlet of the jacket R1 is connected to the circulating water inlet pipe 6 and the freezing water pipe 7 through pipelines, and the water outlet of each jacket R1 is connected to the circulating water return pipe 5 through pipelines; and the water inlet of the heating coil R2 is connected with a low-pressure steam main pipe 4 through a pipeline.
Wherein the upper cover of the reaction kettle is connected with a high-pressure tail gas main pipe 9 and a vacuum gas main pipe 10 through pipelines, and the pipelines are respectively provided with valves; the upper cover of the reaction kettle is connected with a nitrogen storage tank 1 through a pipeline, a valve is arranged on the pipeline, and the tops of the first elevated tank V1101A and the second elevated tank V1101B are respectively connected with a normal-pressure tail gas pipe 8 through pipelines.
In addition, the inner cavities of the first high-level groove V1101A and the second high-level groove V1101B are provided with coils, the inlets of the coils are connected with a low-pressure steam pipeline LS, and the outlets of the coils are connected with a steam condensation water return pipeline SC.
Valves are respectively arranged on the circulating water inlet pipe 6 and the freezing water pipe 7, and the circulating water inlet pipe 6 and the freezing water pipe 7 are connected in parallel and then connected to the jacket R1 on the outer wall.
And after being connected in parallel, the pipeline of the water outlet of the jacket R1 and the pipeline of the water outlet of the heating coil R2 are connected to a circulating water return pipe 5.
The working process of the utility model is as follows:
the raw material dicyclopentadiene is conveyed to a dicyclopentadiene buffer tank 3 from a tank area material-pumping pump, then conveyed to a first elevated tank V1101A and a second elevated tank V1101B, and added into a first reaction kettle R1101A, a second reaction kettle R1101B and a third reaction kettle R1101C by utilizing pressure difference. The supported nickel-based catalyst and dicyclopentadiene are prepared into mixed liquid which is pumped into a first reaction kettle R1101A, a second reaction kettle R1101B and a third reaction kettle R1101C. Introducing nitrogen into a reaction kettle, performing nitrogen replacement on the reaction kettle, opening a low-pressure steam flow, introducing steam into a reaction kettle jacket R2 and a heating coil R1, starting a stirrer M of the reaction kettle, uniformly heating materials in the reaction kettle, closing the low-pressure steam when the temperature in the reaction kettle rises to 95-100 ℃, opening a hydrogen supply flow of the reaction kettle, slowly opening a hydrogen regulating valve to start feeding hydrogen, opening a cooling water flow when the reaction temperature rises to 120 ℃, opening chilled water to introduce cooling water into the R2 of the reaction kettle and the heating coil R1, and strictly controlling the reaction temperature to be below 115 ℃. When the hydrogen flow is reduced, the pressure of the reaction kettle is increased and the reaction temperature is stable or slightly reduced, indicating that the reaction is finished, closing the hydrogen to stop the reaction, keeping the temperature and the pressure for three hours, reducing the temperature to 100-105 ℃, stopping stirring, slowly emptying the hydrogen in the reaction kettle through the high-pressure tail gas main pipe 9, and then feeding a part of nitrogen to put reactants to a subsequent isomerization process.
The difference from the embodiment 1 is that: the elevated tank and the reaction kettle can be provided with a plurality of groups according to the use requirements on the site, for example, the elevated tank can adopt three groups, and the reaction kettle adopts six groups, so that the required raw materials can be better provided for the subsequent isomerization process.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent changes made according to the technical solution of the present invention belong to the scope of the present invention as far as possible.
Claims (8)
1. A dicyclopentadiene hydrogenation process reaction device is characterized in that: the device comprises a first elevated tank (V1101A), a second elevated tank (V1101B), reaction kettles, a stirrer (M), a hydrogen storage tank (2), a dicyclopentadiene buffer tank (3), a low-pressure steam main pipe (4), a circulating water return pipe (5), a circulating water inlet pipe (6), a chilled water pipe (7) and a material output pipe (11), wherein the upper ends of the first elevated tank (V1101A) and the second elevated tank (V1101B) are respectively connected to the dicyclopentadiene buffer tank (3) and the hydrogen storage tank (2) through pipelines, and the lower ends of the first elevated tank (V1101A) and the second elevated tank (V1101B) are respectively connected to the tops of more than one reaction kettles through pipelines; the hydrogen storage tank (2) is respectively connected to the inner cavities of more than one reaction kettle through pipelines, the upper cover of each reaction kettle is connected to the material output pipe (11) through a pipeline, a stirrer (M) and a heating coil (R2) are arranged inside each reaction kettle, a jacket (R1) is arranged on the outer wall of each reaction kettle, a water inlet of the jacket (R1) is connected to the circulating water inlet pipe (6) and the freezing water pipe (7) through pipelines, and a water outlet of each jacket is connected to the circulating water return pipe (5) through a pipeline; the water inlet of the heating coil (R2) is connected with the low-pressure steam main pipe (4) through a pipeline.
2. The dicyclopentadiene hydrogenation process reaction device of claim 1, wherein: the upper cover of the reaction kettle is connected with a high-pressure tail gas main pipe (9) and a vacuum gas main pipe (10) through pipelines.
3. The dicyclopentadiene hydrogenation process reaction device of claim 2, wherein: the upper cover of the reaction kettle is connected with a nitrogen storage tank (1) through a pipeline.
4. The dicyclopentadiene hydrogenation process reaction device of claim 3, wherein: the tops of the first elevated tank (V1101A) and the second elevated tank (V1101B) are respectively connected with a normal pressure tail gas pipe (8) through pipelines.
5. The dicyclopentadiene hydrogenation process reaction device of claim 4, wherein: the inner cavities of the first elevated tank (V1101A) and the second elevated tank (V1101B) are provided with coils, the inlets of the coils are connected with a low-pressure steam pipeline (LS), and the outlets of the coils are connected with a steam condensation water return pipeline (SC).
6. The dicyclopentadiene hydrogenation process reaction device of claim 1, wherein: and valves are respectively arranged on the circulating water inlet pipe (6) and the freezing water pipe (7), and the circulating water inlet pipe (6) and the freezing water pipe (7) are connected in parallel and then connected to the jacket (R1) of the outer wall.
7. The dicyclopentadiene hydrogenation process reaction apparatus of claim 6, wherein: and after being connected in parallel, a pipeline of the water outlet of the jacket (R1) and a pipeline of the water outlet of the heating coil (R2) are connected to a circulating water return pipe (5).
8. The dicyclopentadiene hydrogenation process reaction apparatus of claim 5 or 7, wherein: the reaction kettle adopts a first reaction kettle (R1101A), a second reaction kettle (R1101B) and a third reaction kettle (R1101C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221725437.8U CN217856060U (en) | 2022-07-06 | 2022-07-06 | Dicyclopentadiene hydrogenation process reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221725437.8U CN217856060U (en) | 2022-07-06 | 2022-07-06 | Dicyclopentadiene hydrogenation process reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217856060U true CN217856060U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221725437.8U Active CN217856060U (en) | 2022-07-06 | 2022-07-06 | Dicyclopentadiene hydrogenation process reaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217856060U (en) |
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2022
- 2022-07-06 CN CN202221725437.8U patent/CN217856060U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reaction device for dicyclopentadiene hydrogenation process Effective date of registration: 20230329 Granted publication date: 20221122 Pledgee: Dongying Rural Commercial Bank Co.,Ltd. Pledgor: Dongying Kunbao New Material Co.,Ltd. Registration number: Y2023980036439 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20221122 Pledgee: Dongying Rural Commercial Bank Co.,Ltd. Pledgor: Dongying Kunbao New Material Co.,Ltd. Registration number: Y2023980036439 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |