CN207533211U - A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid - Google Patents
A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid Download PDFInfo
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- CN207533211U CN207533211U CN201721335637.1U CN201721335637U CN207533211U CN 207533211 U CN207533211 U CN 207533211U CN 201721335637 U CN201721335637 U CN 201721335637U CN 207533211 U CN207533211 U CN 207533211U
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- hydrogen
- reaction kettle
- pipe
- circulation fluid
- circulation
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid, including reaction kettle, discharge port, circulation fluid import, sampling nozzle, circulation fluid outlet, the outlet of vacuum nozzle, circulating hydrogen, feed inlet are respectively equipped on the reaction kettle, the circulation fluid outlet is connected after being sequentially connected in series heat exchanger and liquid circulation pump with circulation fluid import；The vacuum nozzle is equipped with nitrogen inlet duct mouth；Mist entrapment plate is equipped in the reaction kettle, mist entrapment plate lower end is equipped with load type palladium catalyst packing layer, load type palladium catalyst packing layer lower end is equipped with Hydrogen distribution pipe, the air inlet mouth of pipe that Hydrogen distribution pipe is placed on the outside of reaction kettle is connected with high pressure hydrogen pipeline, high pressure hydrogen pipeline is equipped with electromagnetic valve, and electromagnetic valve is connected through pressure indicating controller (PIC) with reaction kettle；Position on the high pressure hydrogen pipeline between electromagnetic valve and air inlet mouth of pipe exports after hydrogen circulation pipe is sequentially connected in series circulating hydrogen check (non-return) valve and hydrogen gas circulating pump with circulating hydrogen to be connected.The present apparatus has the advantages of easy to operate, efficient and safe.
Description
Technical field
The utility model is related to a kind of fixed bed hydrogenation reactors for being used to prepare isostearic acid.
Background technology
Generally using stirred tank reactor, Raney nickel particle floats on a liquid to be catalyzed traditional hydrogenation reactor
Hydrogenation.After reaction, catalyst and product are separated with filter device, but the nickel in filter cake easily generates spark, cause combustion
It burns or explodes, bring security risk.In addition, continually filling and filter operation not only increase the amount of labour, catalyst is also caused
Loss.
Based on the disadvantages mentioned above of traditional hydrogenation reactor, the utility model uses particulate supported type palladium catalyst, will urge
Agent piles fixed bed with catalytic hydrogenation.To improve mass transfer rate and controlling the temperature of reactant, hydrogen and liquids
Using pump, forced circulation, liquid material are reacted material outside reactor by exchanging heat with heat exchanger to control outside reactor
Temperature.
Utility model content
Its purpose of the utility model, which is that, provides a kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid, solves
Normal agitation kettle reactor needs frequent loading catalyst and adds filter operation, could carry out hydrogenation, not only operates and answers
It is miscellaneous, it is also inflammable there are catalyst and filter in loss amount it is big the problems such as.
It adopts the technical scheme that achieve the above object, a kind of fixed bed hydrogenation reaction for being used to prepare isostearic acid
Device including reaction kettle, is respectively equipped with discharge port, circulation fluid import, sampling nozzle, circulation fluid outlet, vacuum on the reaction kettle
Nozzle, circulating hydrogen outlet, feed inlet, circulation fluid outlet are sequentially connected in series after heat exchanger and liquid circulation pump and circulation fluid
Import is connected；The vacuum nozzle is equipped with nitrogen inlet duct mouth；Mist entrapment plate, mist entrapment plate are equipped in the reaction kettle
Lower end is equipped with load type palladium catalyst packing layer, and load type palladium catalyst packing layer lower end is equipped with Hydrogen distribution pipe, Hydrogen distribution
The air inlet mouth of pipe that pipe is placed on the outside of reaction kettle is connected with high pressure hydrogen pipeline, and high pressure hydrogen pipeline is equipped with electromagnetic valve, electromagnetism
Valve is connected through pressure indicating controller (PIC) with reaction kettle；On the high pressure hydrogen pipeline between electromagnetic valve and air inlet mouth of pipe
Position after hydrogen circulation pipe is sequentially connected in series circulating hydrogen check (non-return) valve and hydrogen gas circulating pump with circulating hydrogen export connect.
Advantageous effect
The utility model has the following advantages compared with prior art.
The utility model has the advantages that being fixed bed by Catalyst packing, filter element is not needed to recycle catalyst；
Hydrogen and the liquid material forced circulation outside reactor using pump, and be provided with heat exchanger in liquid circulation line, can be with
Substance delivery rate and controlling reaction temperature are improved, there is the advantages of easy to operate, efficient and safe.
Description of the drawings
Below in conjunction with attached drawing, the utility model is described in further detail.
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
The present apparatus includes reaction kettle 22, and discharge port 1, circulation fluid import 20, probe tube are respectively equipped on the reaction kettle 22
Mouth 21, circulation fluid outlet 16, vacuum nozzle 14, circulating hydrogen outlet 12, feed inlet 9, as shown in Figure 1, the circulation fluid exports
16 be sequentially connected in series heat exchanger 18 and liquid circulation pump 19 after be connected with circulation fluid import 20；The vacuum nozzle 14 is equipped with nitrogen
Gas air inlet mouth of pipe 15；Mist entrapment plate 13 is equipped in the reaction kettle 22,13 lower end of mist entrapment plate is catalyzed equipped with load type palladium
Agent packing layer 8,8 lower end of load type palladium catalyst packing layer are equipped with Hydrogen distribution pipe 2, and Hydrogen distribution pipe 2 is placed in outside reaction kettle 22
The air inlet mouth of pipe 3 of side is connected with high pressure hydrogen pipeline 4, and high pressure hydrogen pipeline 4 is equipped with electromagnetic valve 5, and electromagnetic valve 5 is through pressure
Instruction controller 6 is connected with reaction kettle 22；Position on the high pressure hydrogen pipeline 4 between electromagnetic valve 5 and air inlet mouth of pipe 3
It puts and is connect after hydrogen circulation pipe 10 is sequentially connected in series circulating hydrogen check (non-return) valve 7 and hydrogen gas circulating pump 11 with circulating hydrogen outlet 11.
The operation of the utility model is intermittently operated, and the concrete operations in one of them operation cycle are, before hydrogenation,
The control valve of other all nozzles on shutoff device from feed inlet 9 into liquid material to certain liquid level, is closed；Then
It opens the valve of control nitrogen inlet duct mouth 15, after nitrogen is replaced 30 minutes in device, closes nitrogen inlet duct mouth 15 and charging
The control valve of mouth 9；The control valve of vacuum nozzle 14 is opened, is vacuumized in device, after reaching defined vacuum degree, closes vacuum tube
Mouth 14；The aperture of electromagnetic valve 5 is automatically controlled by pressure indicating controller (PIC) 6, high pressure hydrogen, high pressure hydrogen are passed through into device
Hydrogen distribution pipe 2 is entered by Hydrogen distribution pipe air inlet mouth of pipe 3, is flowed up after being come out from the aperture of Hydrogen distribution pipe 2, works as stream
During overload type palladium catalyst packing layer 8, by Catalyst Adsorption, the hydrogen not adsorbed continues up flowing, arrives hydrogen partial
Gas-liquid separation after up to liquid level, hydrogen assembles gradual aggrandizement apparatus internal pressure in ullage, when pressure reaches hydrogenation in device
After pressure needed for reaction, start hydrogen gas circulating pump 11 and liquid circulation pump 19, making liquid and hydrogen, outer formed is forced in the device
Cycle；
After starting forced circulation, liquid is from 16 outflow of circulation fluid outlet, into liquid circulating pipe 17, subsequently into heat exchange
Device 18 after the circulation fluid come out from heat exchanger 18 is pressurizeed by liquid circulation pump, is reentered instead by circulation fluid import 20
Device is answered, into after reactor, circulation fluid flows up, and flows through load type palladium catalyst packing layer 8, liquid is formed inside and outside reactor
The cycle of body；In cyclic process, heat exchanger 18 is first passed through steam, after liquid in reactor is heated to reaction temperature, heat
Exchanger 18 changes logical cryogen soft water, and the heat that hydrogenation is released is removed, controls the constant temperature of reaction solution.
Start gas-liquid forced circulation after, the hydrogen of ullage starts to flow up, after meeting with mist entrapment plate 13 around
Cross mist entrapment plate 13, the drop in hydrogen is trapped by mist entrapment plate 13, from 12 bleeder of hydrogen loop exit, by hydrogen
After the pressurization of gas circulating pump, converge, and be again introduced by circulating hydrogen check (non-return) valve 7 and with the high pressure hydrogen of high pressure hydrogen pipeline 4
Reactor is recycled；After fluid temperature reaches reaction temperature, the hydrogen in catalyst surface is adsorbed in palladium activated centre shape
Into the transition state hydrogen atom of upper state, transition state hydrogen atom is reacted with unrighted acid, and addition reaction occurs；With hydrogen atom
Continuous consumption, circulating hydrogen constantly adsorbed and hydrogenation occurs.During forced circulation, gas-liquid is in reactor
It flows to identical, is all to flow from bottom to top, flow resistance is small, is conducive to improve gas-liquid flow velocity, fortification substance transmits, and improves reaction
Speed；Pressure indicating controller (PIC) 6 can automatically control the aperture of electromagnetic valve 5, so as to ensure that the pressure in reactor is constant.
Using in-line analyzer by isostearic acid purity in 21 real-time analytical equipment of sampling nozzle, when product purity reaches
After it is required that, all nozzles are closed, the control valve of vacuum nozzle 14 is only opened, the hydrogen in device is pumped；Reach certain vacuum
After degree, vacuum nozzle 14 is closed；The valve of control nitrogen inlet duct mouth 15 and discharge port 1 is opened, starts discharging, product is unsnatched
Afterwards, that is, an operation cycle is completed.
Claims (1)
1. a kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid, including reaction kettle（22）, the reaction kettle（22）On
It is respectively equipped with discharge port（1）, circulation fluid import（20）, sampling nozzle（21）, circulation fluid outlet（16）, vacuum nozzle（14）, follow
Ring hydrogen outlet（12）, feed inlet（9）, which is characterized in that the circulation fluid outlet（16）It is sequentially connected in series heat exchanger（18）With
Liquid circulation pump（19）Afterwards with circulation fluid import（20）It is connected；The vacuum nozzle（14）It is equipped with nitrogen inlet duct mouth（15）；
The reaction kettle（22）It is interior to be equipped with mist entrapment plate（13）, mist entrapment plate（13）Lower end is equipped with load type palladium catalyst packing layer
（8）, load type palladium catalyst packing layer（8）Lower end is equipped with Hydrogen distribution pipe（2）, Hydrogen distribution pipe（2）It is placed in reaction kettle（22）
The air inlet mouth of pipe in outside（3）With high pressure hydrogen pipeline（4）It is connected, high pressure hydrogen pipeline（4）It is equipped with electromagnetic valve（5）, electromagnetism
Valve（5）Through pressure indicating controller (PIC)（6）With reaction kettle（22）It is connected；The high pressure hydrogen pipeline（4）It is upper to be located at electromagnetic valve
（5）And air inlet mouth of pipe（3）Between position through hydrogen circulation pipe（10）It is sequentially connected in series circulating hydrogen check (non-return) valve（7）It is recycled with hydrogen
Pump（11）It is exported afterwards with circulating hydrogen（12）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721335637.1U CN207533211U (en) | 2017-10-17 | 2017-10-17 | A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721335637.1U CN207533211U (en) | 2017-10-17 | 2017-10-17 | A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207533211U true CN207533211U (en) | 2018-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721335637.1U Expired - Fee Related CN207533211U (en) | 2017-10-17 | 2017-10-17 | A kind of fixed bed hydrogenation reactor for being used to prepare isostearic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207533211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591483A (en) * | 2022-12-15 | 2023-01-13 | 东营市俊源石油技术开发有限公司（Cn） | Food-grade white oil hydrogenation preparation device |
-
2017
- 2017-10-17 CN CN201721335637.1U patent/CN207533211U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591483A (en) * | 2022-12-15 | 2023-01-13 | 东营市俊源石油技术开发有限公司（Cn） | Food-grade white oil hydrogenation preparation device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20181017 |