CN207958175U - A kind of catalytic hydrogenation device of solvent recovery - Google Patents
A kind of catalytic hydrogenation device of solvent recovery Download PDFInfo
- Publication number
- CN207958175U CN207958175U CN201721898413.1U CN201721898413U CN207958175U CN 207958175 U CN207958175 U CN 207958175U CN 201721898413 U CN201721898413 U CN 201721898413U CN 207958175 U CN207958175 U CN 207958175U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- kettle
- tank
- connect
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 24
- 238000009903 catalytic hydrogenation reaction Methods 0.000 title claims abstract description 10
- 238000011084 recovery Methods 0.000 title abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 54
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 238000004821 distillation Methods 0.000 claims abstract description 17
- 238000004090 dissolution Methods 0.000 claims abstract description 8
- 238000002425 crystallisation Methods 0.000 claims abstract description 7
- 230000008025 crystallization Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000975 dye Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000002828 nitro derivatives Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of catalytic hydrogenation device of solvent recovery, by hydrogen-holder, dissolution kettle, catalyst tank, add hydrogen kettle, distillation still, connecting pipeline, valve and control device composition, the present apparatus further includes catalyst sedimentation tank, catalyst sedimentation tank top input terminal is by carrying pump valve manifold and hydrogen kettle being added to connect, it is described connection catalyst sedimentation tank and plus hydrogen kettle line ports from add hydrogen kettle top portion enter, and it is inserted into the bottom for adding hydrogen kettle, the catalyst sedimentation pot bottom output end is connect by carrying pump valve manifold with catalyst tank, distillation still is connect by solvent recovery pipeline with solvent tank, the discharge port of distillation still is connect with crystallization kettle.
Description
Technical field
The utility model is related to a kind of processing unit (plant) field of dyestuff intermediate, specially a kind of catalysis of solvent recovery adds
Hydrogen production device.
Background technology
The catalytic hydrogenation device capital equipment of dyestuff intermediate is for hydrogen-holder, dissolution kettle, catalyst tank plus hydrogen at present
Kettle, distillation still, crystallization kettle and connecting pipeline, valve and control system composition, the main technological process of production are；Molten
It solves in kettle to nitro compounds through the dissolving of solvent, adds and catalyst is added in hydrogen kettle into line replacement, heating cooling processing, product enters
It is distilled in distillation still, crystallization kettle is entered after distillation, handles to obtain relevant product by centrifugal drying.Between production process is at present
Hydrogen kettle is added to carry out emptying operation when formula of having a rest production, the wherein recycling of catalyst, catalyst is that tank bottom recycles, and there are removal process
Middle catalyst from air causes the reduction of catalyst purity, the rate of recovery to be not high to problem, the existing equipment when catalyst recycles
Pan feeding work cannot be carried out at the same time, the production capacity of equipment is restricted, existing equipment because not to intermediate products and
The online recycling reusing device of catalyst, the waste for causing raw material increase the pollution of production cost and environment.
Utility model content
The utility model aim：The utility model provides a kind of catalytic hydrogenation dress of solvent recovery in order to solve the above problem
It sets.
The content of the utility model：A kind of catalytic hydrogenation device of solvent recovery, by hydrogen-holder, dissolution kettle, catalyst
Tank plus hydrogen kettle, distillation still, connecting pipeline, valve and control device composition, the present apparatus further includes catalyst sedimentation tank, described
Catalyst sedimentation tank top input terminal is by carrying pump valve manifold and hydrogen kettle being added to connect, the connection catalyst sedimentation tank and plus hydrogen
The line ports of kettle from add hydrogen kettle top portion enter, and be inserted into plus hydrogen kettle bottom, the catalyst sedimentation pot bottom output end
It is connect with catalyst tank by carrying pump valve manifold, distillation still is connect by solvent recovery pipeline with solvent tank, and distillation still goes out
Material mouth is connect with crystallization kettle.
Further preferred catalyst tank is provided with material level transmitter, the material level transmitter control port with urge
Control port of the bottom output end of agent settling tank with pump valve is connect by signal wire with control device.
Further preferred control device is DCS control devices.
Advantageous effect of the present invention：Catalyst sedimentation and retracting device are increased, catalyst is met and is filled in obturator
Divide using recycling, realizes under band pressure condition plus hydrogen kettle pan feeding improves work efficiency, solvent recycles again, reduces
Production cost reduces environmental pollution.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Wherein：1 hydrogen-holder, 2 dissolution kettles, 3 plus hydrogen kettle, 4 catalyst sedimentation tanks, 5 catalyst tanks, 6 distillation stills, 7 catalysis
Agent recovery line, 8 catalyst sedimentation pipelines, 9 catalyst line valve uniies, 10 crystallization kettles, 11 solvent recovery pipelines, 12 solvents
Tank.
Specific implementation mode
A kind of catalytic hydrogenation device of solvent recovery, byHydrogen stores upTank 1, dissolution kettle 2, catalyst tank 5 plus hydrogen kettle 3, distillation
Kettle 6, connecting pipeline, valve and control device composition, the present apparatus further includes catalyst sedimentation tank 4, the catalyst sedimentation tank 4
Top input terminal is by carrying pump valve manifold 8 and hydrogen kettle 3 being added to connect, the connection catalyst sedimentation tank 4 and the pipeline for adding hydrogen kettle 3
Port is inserted into plus the bottom of hydrogen kettle 3,4 bottom output end of the catalyst sedimentation tank pass through band from adding the top of hydrogen kettle 3 to enter
There is pump valve manifold to be connect with catalyst tank, distillation still 6 is connect by solvent recovery pipeline 11 with solvent tank 12, and distillation still 6 goes out
It is the dissolving in dissolution kettle 2 to nitro compounds by solvent that material mouth, which connect the present apparatus course of work with crystallization kettle 10, by pump valve
Pipeline is into hydrogen kettle 3 is added, and by pipeline connection plus hydrogen kettle 3, catalyst tank 5 is added catalyst by pipeline to be added hydrogen-holder 1
Hydrogen kettle 3, catalytic temperature are increased to set point of temperature and are reacted, cooled down after reaction, open the pump valve of catalyst sedimentation pipeline 8
Structure makes catalyst enter catalyst sedimentation tank 4, catalyst tank 5 from insertion plus 3 bottom catalyst sedimentation pipeline of hydrogen kettle, 8 entrance
Upper arranging thing material level transmitter, control signal is by signal wire, and into DCS control systems, control system controls valve unit
9, so that the catalyst line valve unit 9 that catalyst of the catalyst sedimentation tank 4 by sedimentation passes through in catalyst recovery line 7 is returned
Catalyst tank is returned to, is realized under closed band pressure condition, the solvent of the recycling of catalyst, distillation still 6 passes through solvent recovery
Pipeline 11 is recycled into solvent tank 12 as the solvent of dissolution kettle 2 again, reduces production cost.
Claims (3)
1. a kind of catalytic hydrogenation device of dyestuff intermediate, by hydrogen-holder, dissolution kettle, catalyst tank plus hydrogen kettle, distillation still,
Connecting pipeline, valve and control device composition, it is characterized in that the present apparatus further includes catalyst sedimentation tank, the catalyst sedimentation
Tank top input terminal is by carrying pump valve manifold and hydrogen kettle being added to connect, the connection catalyst sedimentation tank and the pipeline end for adding hydrogen kettle
Mouthful from add hydrogen kettle top portion enter, and be inserted into plus hydrogen kettle bottom, the bottom output end of the catalyst sedimentation tank is by carrying
Pump valve manifold is connect with catalyst tank, and the distillation still solvent output end is connect by pipeline with solvent tank, the product of distillation still
Output end is connect by pipeline with crystallization kettle.
2. the catalytic hydrogenation device of a kind of dyestuff intermediate according to claim 1, characterized in that catalyst tank is provided with object
Expect that level transmitter, the material level transmitter control port carry the control of pump valve with the bottom output end of catalyst sedimentation tank
Port processed is connect by signal wire with control device.
3. the catalytic hydrogenation device of a kind of dyestuff intermediate according to claim 1 or claim 2, it is characterized in that the control device is
DCS control devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721898413.1U CN207958175U (en) | 2017-12-29 | 2017-12-29 | A kind of catalytic hydrogenation device of solvent recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721898413.1U CN207958175U (en) | 2017-12-29 | 2017-12-29 | A kind of catalytic hydrogenation device of solvent recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207958175U true CN207958175U (en) | 2018-10-12 |
Family
ID=63730971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721898413.1U Expired - Fee Related CN207958175U (en) | 2017-12-29 | 2017-12-29 | A kind of catalytic hydrogenation device of solvent recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207958175U (en) |
-
2017
- 2017-12-29 CN CN201721898413.1U patent/CN207958175U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |