CN114230431A - Preparation method and preparation system of dicyclopentadiene - Google Patents
Preparation method and preparation system of dicyclopentadiene Download PDFInfo
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- CN114230431A CN114230431A CN202111648042.2A CN202111648042A CN114230431A CN 114230431 A CN114230431 A CN 114230431A CN 202111648042 A CN202111648042 A CN 202111648042A CN 114230431 A CN114230431 A CN 114230431A
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- dicyclopentadiene
- cyclopentadiene
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- cyclodiene
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- 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 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000006471 dimerization reaction Methods 0.000 claims abstract description 38
- 238000012691 depolymerization reaction Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000010992 reflux Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 1
- 238000004939 coking Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000969 carrier Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
- C07C2/50—Diels-Alder conversion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/30—Fractionating columns with movable parts or in which centrifugal movement is caused
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/22—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/48—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing ten carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of preparation of dicyclopentadiene, in particular to a preparation method and a preparation system of dicyclopentadiene, which comprises the steps of feeding a crude dicyclopentadiene raw material into a depolymerization reaction rectifying tower, feeding cyclopentadiene-containing components generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid; sending the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, obtaining a mixture of cyclopentadiene and dicyclopentadiene from the tower bottom, and discharging unpolymerized cyclopentadiene and impurities from the top of the tower; the mixture of cyclopentadiene and dicyclopentadiene obtained from the tower bottom of the dimerization reaction rectifying tower is sent into a dimerization reactor to react to obtain a dicyclopentadiene product, so that the problem of pipeline blockage caused by easy coking of a dicyclopentadiene manufacturing equipment method is solved.
Description
Technical Field
The invention relates to the technical field of preparation of dicyclopentadiene, in particular to a preparation method and a preparation system of dicyclopentadiene.
Background
Dicyclopentadiene is an important fine chemical raw material, can be used for synthesizing alicyclic petroleum resin for preparing adhesives, printing ink coatings and the like, can be used as an epoxy resin modifier with an ethylene-propylene copolymer, and can also be copolymerized with phenols to produce rubber, plastic antioxidants, spices, high-boiling-point solvents and the like
The existing equipment and method for manufacturing dicyclopentadiene adopt high-temperature carriers, dicyclopentadiene is depolymerized in the carriers, but polymers are gathered in the carriers, so that pipelines are easily blocked.
Disclosure of Invention
The invention aims to provide a preparation method and a preparation system of dicyclopentadiene, and aims to solve the problem that pipelines are blocked due to easy coking of dicyclopentadiene preparation equipment and method.
In order to achieve the above object, in a first aspect, the present invention provides a method for preparing cyclodiene, comprising the steps of:
feeding the crude dicyclopentadiene raw material into a depolymerization reaction rectifying tower, feeding the cyclopentadiene-containing component generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid;
sending the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, obtaining a mixture of cyclopentadiene and dicyclopentadiene from the tower bottom, and discharging unpolymerized cyclopentadiene and impurities from the top of the tower;
and (3) feeding the mixture of cyclopentadiene and dicyclopentadiene obtained from the tower bottom of the dimerization reaction rectifying tower into a dimerization reactor, and reacting to obtain a dicyclopentadiene product.
Wherein the mol content of dicyclopentadiene in the crude dicyclopentadiene raw material is 65-93%.
Wherein the number of theoretical plates of the depolymerization reaction rectifying tower is 20-40, the tower pressure is normal pressure, the tower kettle temperature is 170-240 ℃, and the reflux ratio is 2-8.
Wherein the temperature of the bottom of the depolymerization reaction rectifying tower is 185-220 ℃, and the reflux ratio is 2-6.
Wherein the number of theoretical plates of the dimerization reaction rectifying tower is 30-70, the tower pressure is normal pressure, the tower kettle temperature is 70-125 ℃, and the reflux ratio is 5-15.
Wherein the temperature of the bottom of the dimerization reaction rectifying tower is 85-110 ℃, and the reflux ratio is 8-12.
Wherein, the cyclopentadiene-containing component generated by depolymerization is cooled to 20-53 ℃ by a tower top condenser and then is discharged.
Wherein the temperature of the dimerization reactor is 75-85 ℃, and the absolute pressure is 0.1-0.2 Mpa.
Wherein the temperature of the dimerization reactor is 70-90 ℃, and the absolute pressure is 0.12-0.18MPa
In a second aspect, the invention provides a preparation system of dicyclopentadiene, wherein the depolymerization reaction rectifying tower comprises a tank body and a cleaning mechanism, and the cleaning mechanism is arranged on the inner side wall of the tank body;
the wiper mechanism includes supporting component, drive assembly, coupling assembling and a plurality of washing subassembly, the supporting component set up in the lateral wall of the jar body, drive assembly set up in jar body bottom, coupling assembling set up in the top of the jar body, it is a plurality of wash the subassembly and set up respectively in drive assembly's lateral wall.
The preparation method of the dicyclopentadiene comprises the steps of feeding a crude dicyclopentadiene raw material into a depolymerization reaction rectifying tower, feeding a cyclopentadiene-containing component generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid; sending the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, obtaining a mixture of cyclopentadiene and dicyclopentadiene from the tower bottom, and discharging unpolymerized cyclopentadiene and impurities from the top of the tower; feeding the mixture of cyclopentadiene and dicyclopentadiene obtained from the bottom of the dimerization reaction rectifying tower into a dimerization reactor, reacting to obtain a dicyclopentadiene product, and combining the depolymerization reaction rectifying tower, the dimerization reaction rectifying tower and the dimerization reactor to obtain high-purity and high-yield dicyclopentadiene; in addition, the temperature and reflux ratio of the tower bottom of the dimerization reaction rectifying tower are controlled, and the dimerization reactor is combined, so that the generation of high polymers can be effectively inhibited, and the purity and yield of dicyclopentadiene are improved, so that the problems of material coking and pipeline blockage are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a preparation method of a dicyclopentadiene provided by the invention.
FIG. 2 is a schematic structural diagram of a preparation system of a dicyclopentadiene provided by the invention.
FIG. 3 is a side view of a system for producing a dicyclopentadiene according to the present invention.
Fig. 4 is a cross-sectional view taken along plane a-a of fig. 3.
Fig. 5 is an enlarged view of detail B of fig. 4.
1-tank body, 2-cleaning mechanism, 3-supporting component, 4-driving component, 5-connecting component, 6-cleaning component, 7-connecting rod, 8-bottom plate, 9-mounting plate, 10-motor, 11-connecting pipe, 12-connecting head, 13-rotating plate, 14-partition plate, 15-rolling ball, 16-water spray pipe and 17-scraping plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, in a first aspect, the present invention provides a method for preparing dicyclopentadiene, comprising the steps of:
s1, feeding the raw material of the crude dicyclopentadiene into a depolymerization reaction rectifying tower, feeding the cyclopentadiene-containing component generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid;
specifically, the mole content of dicyclopentadiene in the crude dicyclopentadiene raw material is 65-93%.
S2, feeding the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, wherein a mixture of cyclopentadiene and dicyclopentadiene is obtained from the bottom of the tower, and unpolymerized cyclopentadiene and impurities are discharged from the top of the tower;
specifically, the theoretical plate number of the depolymerization reaction rectifying tower is 20-40, the tower pressure is normal pressure, the tower kettle temperature is 170-240 ℃, the reflux ratio is 2-8, the tower kettle temperature of the depolymerization reaction rectifying tower is 185-220 ℃, the reflux ratio is 2-6, and the cyclopentadiene-containing component generated by depolymerization is cooled to 20-53 ℃ by a tower top condenser and is sent out.
S3, feeding the mixture of cyclopentadiene and dicyclopentadiene obtained from the tower bottom of the dimerization reaction rectifying tower into a dimerization reactor, and reacting to obtain a dicyclopentadiene product.
Specifically, the number of theoretical plates of the dimerization reaction rectifying tower is 30-70, the tower pressure is normal pressure, the temperature of a tower kettle is 70-125 ℃, the reflux ratio is 5-15, the temperature of the tower kettle of the dimerization reaction rectifying tower is 85-110 ℃, the reflux ratio is 8-12, the temperature of the dimerization reactor is 75-85 ℃, the absolute pressure is 0.1-0.2MPa, the temperature of the dimerization reactor is 70-90 ℃, and the absolute pressure is 0.12-0.18 MPa.
The preparation method of the dicyclopentadiene comprises the steps of feeding a crude dicyclopentadiene raw material into a depolymerization reaction rectifying tower, feeding a cyclopentadiene-containing component generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid; sending the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, obtaining a mixture of cyclopentadiene and dicyclopentadiene from the tower bottom, and discharging unpolymerized cyclopentadiene and impurities from the top of the tower; feeding the mixture of cyclopentadiene and dicyclopentadiene obtained from the bottom of the dimerization reaction rectifying tower into a dimerization reactor, reacting to obtain a dicyclopentadiene product, and combining the depolymerization reaction rectifying tower, the dimerization reaction rectifying tower and the dimerization reactor to obtain high-purity and high-yield dicyclopentadiene; in addition, the temperature and reflux ratio of the tower bottom of the dimerization reaction rectifying tower are controlled, and the dimerization reactor is combined, so that the generation of high polymers can be effectively inhibited, and the purity and yield of dicyclopentadiene are improved, so that the problems of material coking and pipeline blockage are solved.
Referring to fig. 2 to 5, in a second aspect, the present invention provides a system for preparing dicyclopentadiene, including a tank 1 and a cleaning mechanism 2, wherein the cleaning mechanism 2 is disposed on an inner sidewall of the tank 1;
the wiper mechanism 2 includes supporting component 3, drive assembly 4, coupling assembling 5 and a plurality of washing subassembly 6, supporting component 3 set up in the lateral wall of the jar body 1, drive assembly 4 set up in jar body 1 bottom, coupling assembling 5 set up in the top of the jar body 1, it is a plurality of washing subassembly 6 sets up respectively in the lateral wall of drive assembly 4.
In this embodiment, the supporting component 3 supports the tank body 1, the tank body 1 provides an installation condition for the cleaning mechanism 2, when the tank body 1 needs to be cleaned, a water pipe is connected to the connecting component 5, the water pipe is opened, the driving component 4 is started, the driving component 4 works to drive the cleaning component 6 to rotate, water in the water pipe flows into the cleaning component 6 from the connecting component 5, the cleaning component 6 rotates in the tank body 1 to clean the inner wall of the tank body 1, after the cleaning is completed, a drain hole of the tank body 1 is opened, sewage in the tank body 1 is discharged, and then the cleaning of the tank body 1 can be completed, so that the problem that an existing preparation system does not have a cleaning function is solved.
Further, the supporting component 3 comprises two connecting rods 7 and a bottom plate 8, wherein the two connecting rods 7 are respectively rotatably connected with the tank body 1 and respectively positioned at two sides of the tank body 1, and the bottom plate 8 is fixedly connected with the two connecting rods 7 and positioned at one side of the tank body 1 far away from the connecting rods 7.
In this embodiment, two connecting rods 7 provide the installation condition for bottom plate 8, and two connecting rods 7 and bottom plate 8 support jar body 1, can rock jar body 1 when clearing up jar body 1, make jar body 1 abluent cleaner.
Further, drive assembly 4 includes mounting panel 9, motor 10 and connecting pipe 11, mounting panel 9 with jar body 1 fixed connection, and be located the bottom of jar body 1, motor 10 with mounting panel 9 fixed connection, and be located the top of mounting panel 9, connecting pipe 11 with motor 10 output end fixed connection.
In this embodiment, the mounting panel 9 does the motor 10 provides installation conditions, and is right when the jar body 1 clears up, starts the motor 10, motor 10 work drive connecting pipe 11 rotates, connecting pipe 11 drives wash subassembly 6 is in jar body 1 internal rotation, it is right jar body 1 washs.
Further, coupling assembling 5 includes connector 12, commentaries on classics board 13, baffle 14 and a plurality of ball 15, connector 12 and jar body 1 fixed connection, and be located the top of jar body 1, commentaries on classics board 13 with connecting pipe 11 fixed connection, and with connector 12 rotates and connects, baffle 14 with connector 12 fixed connection, and be located the inside wall of connector 12, it is a plurality of ball 15 respectively with baffle 14 with commentaries on classics board 13 roll connection, and be located baffle 14 with between the commentaries on classics board 13.
In this embodiment, when the connecting pipe 11 rotates, the ball 15 between the partition 14 and the rotating plate 13 is utilized to realize that the connecting pipe 11 rotates, and the connecting head 12 does not rotate along with the connecting pipe 11, so that the water can be brought into the connecting pipe 11 by the water supply pipe on the connecting head 12.
Further, the cleaning assembly 6 includes a spray pipe 16 and a scraper 17, the spray pipe 16 is fixedly connected to the connecting pipe 11 and is located on the outer side wall of the connecting pipe 11, and the scraper 17 is fixedly connected to the spray pipe 16 and is located on a side of the spray pipe 16 away from the connecting pipe 11.
In this embodiment, when cleaning the tank 1, the connecting pipe 11 drives the spray pipe 16 to rotate, and the scraper 17 scrapes off sticky substances on the inner wall of the tank 1, so that water flows from the connecting head 12 to the spray pipe 16 through the connecting pipe 11, and is sprayed out from the spray pipe 16 to clean the inner wall of the tank 1, and after cleaning, a drain hole is opened to drain sewage in the tank 1.
While the above disclosure is directed to the preferred embodiment of the method and system for preparing dicyclopentadiene according to the present invention, it is understood that the scope of the invention is not limited thereto, and that all or a portion of the process flow for implementing the embodiment described above may be modified by one of ordinary skill in the art, and all equivalent modifications and variations that are within the scope of the invention are encompassed by the present invention.
Claims (10)
1. The preparation method of the dicyclopentadiene is characterized by comprising the following steps:
feeding the crude dicyclopentadiene raw material into a depolymerization reaction rectifying tower, feeding the cyclopentadiene-containing component generated by depolymerization out of the tower top, and continuously discharging tower bottom liquid;
sending the cyclopentadiene-containing component obtained from the top of the depolymerization rectifying tower into a dimerization rectifying tower, obtaining a mixture of cyclopentadiene and dicyclopentadiene from the tower bottom, and discharging unpolymerized cyclopentadiene and impurities from the top of the tower;
and (3) feeding the mixture of cyclopentadiene and dicyclopentadiene obtained from the tower bottom of the dimerization reaction rectifying tower into a dimerization reactor, and reacting to obtain a dicyclopentadiene product.
2. The process for producing cyclodiene according to claim 1,
the mol content of dicyclopentadiene in the crude dicyclopentadiene raw material is 65-93%.
3. The process for producing cyclodiene according to claim 1,
the number of theoretical plates of the depolymerization reaction rectifying tower is 20-40, the tower pressure is normal pressure, the tower kettle temperature is 170-240 ℃, and the reflux ratio is 2-8.
4. The process for producing cyclodiene according to claim 3,
the temperature of the bottom of the depolymerization reaction rectifying tower is 185-220 ℃, and the reflux ratio is 2-6.
5. The process for producing cyclodiene according to claim 2,
the number of theoretical plates of the dimerization reaction rectifying tower is 30-70, the tower pressure is normal pressure, the tower kettle temperature is 70-125 ℃, and the reflux ratio is 5-15.
6. The process for producing cyclodiene according to claim 5,
the tower kettle temperature of the dimerization reaction rectifying tower is 85-110 ℃, and the reflux ratio is 8-12.
7. The process for producing cyclodiene according to claim 4,
and cooling the cyclopentadiene-containing component generated by depolymerization to 20-53 ℃ by an overhead condenser and discharging.
8. The process for producing cyclodiene according to claim 6,
the temperature of the dimerization reactor is 75-85 ℃, and the absolute pressure is 0.1-0.2 Mpa.
9. The process for producing cyclodiene according to claim 8,
the temperature of the dimerization reactor is 70-90 ℃, and the absolute pressure is 0.12-0.18 MPa.
10. A preparation system of the cyclodiene, which is applied to the preparation method of the cyclodiene according to any one of claims 1 to 9,
the depolymerization reaction rectifying tower comprises a tank body and a cleaning mechanism, and the cleaning mechanism is arranged on the inner side wall of the tank body;
the wiper mechanism includes supporting component, drive assembly, coupling assembling and a plurality of washing subassembly, the supporting component set up in the lateral wall of the jar body, drive assembly set up in jar body bottom, coupling assembling set up in the top of the jar body, it is a plurality of wash the subassembly and set up respectively in drive assembly's lateral wall.
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| CN202111648042.2A CN114230431A (en) | 2021-12-30 | 2021-12-30 | Preparation method and preparation system of dicyclopentadiene |
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| CN202111648042.2A CN114230431A (en) | 2021-12-30 | 2021-12-30 | Preparation method and preparation system of dicyclopentadiene |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204170519U (en) * | 2014-10-30 | 2015-02-25 | 湖州核宏机械有限公司 | A kind of filtering net cleaning device |
| CN205797940U (en) * | 2016-06-28 | 2016-12-14 | 天津康宏盛代实业有限公司 | Inner tank wall cleans device |
| CN109665930A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A method of high purity dicyclo pentylene is prepared by C5 fraction |
| CN109665934A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A method of preparing dicyclopentadiene |
| CN214181851U (en) * | 2020-09-18 | 2021-09-14 | 王永 | Chemical rectification tower |
-
2021
- 2021-12-30 CN CN202111648042.2A patent/CN114230431A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204170519U (en) * | 2014-10-30 | 2015-02-25 | 湖州核宏机械有限公司 | A kind of filtering net cleaning device |
| CN205797940U (en) * | 2016-06-28 | 2016-12-14 | 天津康宏盛代实业有限公司 | Inner tank wall cleans device |
| CN109665930A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A method of high purity dicyclo pentylene is prepared by C5 fraction |
| CN109665934A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A method of preparing dicyclopentadiene |
| CN214181851U (en) * | 2020-09-18 | 2021-09-14 | 王永 | Chemical rectification tower |
Non-Patent Citations (3)
| Title |
|---|
| 郭成宇主编: "《现代甜菜制糖工艺学》", 31 July 2015, 中国轻工业出版社, pages: 203 - 204 * |
| 高福成主编: "《食品分离重组工程技术》", 31 July 1998, 中国轻工业出版社, pages: 159 * |
| 黄伯琴主编: "《当代石油和石化工业技术普及读本 合成树脂》", 31 December 2000, 中国石化出版社, pages: 46 * |
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