CN205933692U - Cyclohexane oxidation device - Google Patents
Cyclohexane oxidation device Download PDFInfo
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- CN205933692U CN205933692U CN201620856109.XU CN201620856109U CN205933692U CN 205933692 U CN205933692 U CN 205933692U CN 201620856109 U CN201620856109 U CN 201620856109U CN 205933692 U CN205933692 U CN 205933692U
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- oxidizing chamber
- oxidation reactor
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Abstract
The utility model discloses a cyclohexane oxidation device, it includes horizontal multi -chambered oxidation reactor, charge heater, oxidation liquid circulating pump, a circulative cooling ware, oxidation reactor's both ends are equipped with reaction feed inlet and oxidation liquid discharge gate, the reaction feed inlet respectively with charge heater and circulative cooling ware are connected, does the inside division board for the reacting chamber of oxidation reactor split into 4 6 individual oxidizing chamber, every oxidizing chamber bottom is equipped with air distributor to every oxidizing chamber connects gradually through the pipeline oxidation liquid circulating pump and circulative cooling ware, simultaneously the bottom of the division board between every oxidizing chamber is opened and is had the intercommunicating pore, is equipped with the overflow weir between the oxidizing chamber of end and oxidation liquid discharge gate, and oxidation reactor's the ejection of compact flows to the discharge gate from the overflow weir top. The utility model discloses reduce connection pipeline and accessory between the oxidation reactor, reduced the possibility that the oxidation reaction device emergence was leaked, the security that has improved oxidation unit.
Description
Technical field
This utility model belongs to chemical technology field and in particular to a kind of Cyclohexane Oxidation Unit.
Background technology
Cyclohexane oxidation technique has or not catalytic oxidation technique and catalytic oxidation technique, due to being the high-temperature oxydation being passed through air
Process, is susceptible to explosion accident.So the safety of Cyclohexane Oxidation Unit needs to pay special attention to.
Oxidation reactor is the key equipment of cyclohexane oxidation process, its version mainly have autoclave stirred reactor and
Tower inner circulation reactor etc. is several.In order that the air being passed through uniformly can be mixed with hexamethylene liquid, therefore often in reactor
Installing agitator, forces Matter Transfer using machine power, to reach the purpose of good mixing.Inner circulation reactor is in reaction
Cause the differential static pressure in liquid in device using gas-liquid, thus producing liquid circulation motion, make material inner sleeve and reactor it
Between circulate, reach diffusion and mass transfer purpose.
The shortcoming of stirred-tank reactor is：（1）Many reactors in series of 4-6, connecting tube is susceptible to leak, and causes peace
Full accident；（2）Mechanical agitation, power consumption is big；（3）There is actuating device, structure is more complicated, high equipment cost；（4）Agitator axle
Envelope is easy to wear, once damaging the hexamethylene spilling can form blast air mass, there is severe compromise；（5）Agitator is fragile,
Troublesome maintenance, repairing of often need to stopping, impact produces.
The tower inner circulation reactor autoclave stirred reactor that compares has technical advantage in some aspects, but is also to adopt 4-
The mode of 6 reactors in series, whether adopts the stirring reactor of multi-floating bodies, or the interior circulation using multiple series connection
Tower reactor, the connecting tube between reactor is susceptible to leak, and causes security incident.
In the industrial production, stirring-type oxidation reactor and inner circulation reactor, typically all adopts 4-6 reactor string
Connection, series connection number is unfavorable for improving the selectivity of cyclohexane oxidation less than 3, and series connection number is too much although be conducive to improving choosing
Selecting property, but the investment of equipment can be increased.
Content of the invention
The purpose of this utility model is to provide a kind of Cyclohexane Oxidation Unit, to solve problems of the prior art.
This utility model adopts the technical scheme that：A kind of Cyclohexane Oxidation Unit, it includes a horizontal multicell oxidation
Reactor, feed heater, oxidation solution circulating pump, recirculation cooler, one end of described oxidation reactor is provided with reaction feed mouth,
The other end is provided with oxidation solution discharging opening, and described reaction feed mouth is connected with described feed heater and recirculation cooler respectively, institute
State the reative cell division board within oxidation reactor and be divided into 4-6 oxidizing chamber, each oxidizing chamber bottom is provided with air distribution
Device, and each oxidizing chamber is sequentially connected described oxidation solution circulating pump and recirculation cooler by pipeline, each oxidizing chamber simultaneously
Between division board bottom have intercommunicating pore, be provided with downflow weir between the oxidizing chamber in end and oxidation solution discharging opening, oxidation is anti-
The discharging answering device flows to discharging opening from downflow weir top.
Preferably, the reative cell division board within described oxidation reactor is divided into 5 oxidizing chambers.
The beneficial effects of the utility model are：
（1）This utility model passes through to complete cyclohexane oxidation in a Sealing Arrangement, decreases oxidation reaction
Connecting pipeline between device and accessory, reduce the probability that oxidation reaction apparatus occur leakage, improve the peace of oxidation unit
Quan Xing.
（2）The bottom design of each oxidizing chamber of oxidation reaction described in the utility model has circulation discharging, can be according to oxygen
Change conversion ratio and yield situation, adjust flow and the temperature of outer circulation oxidation solution, when controlling oxidation solution stop in the reactor
Between and oxidizing reaction temperature, to reach optimal oxidation process conditions.
Brief description
Fig. 1 is a kind of structural representation of Cyclohexane Oxidation Unit.
Fig. 2 is a kind of division board perforate figure of cyclohexane oxidation device.
In figure：1. oxidation reactor, 2. oxidation solution discharging opening, 3. downflow weir, 4. reative cell, 5. division board, 6. intercommunicating pore,
7. air sparger, 8. liquid level, 9. compressed air, 10. oxidation cycle liquid, 11. pressurized circulation liquid, 12. cold Posterior circle liquid, 13.
Cyclohexane feed, 14. reactor feed liquid, 15. oxidation solution circulating pumps, 16. recirculation coolers, 17. feed heaters, 18. is cold
But water, 19. steam.
Specific embodiment
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of Cyclohexane Oxidation Unit, it includes a horizontal multicell oxidation reactor 1, feed heater
17th, oxidation solution circulating pump 15, recirculation cooler 16, the two ends of described oxidation reactor 1 are provided with reaction feed mouth and oxidation solution goes out
Material mouth 2, described reaction feed mouth is connected with described feed heater 17 and recirculation cooler 16 respectively, described oxidation reactor 1
Internal reative cell 4 is divided into 4-6 oxidizing chamber with division board 5, and each oxidizing chamber bottom is provided with air sparger 7, and often
Individual oxidizing chamber is sequentially connected described oxidation solution circulating pump 15 and recirculation cooler 16 by pipeline, simultaneously between each oxidizing chamber
Division board 5 bottom has intercommunicating pore 6, is provided with downflow weir 3, oxidation reaction between the oxidizing chamber in end and oxidation solution discharging opening 2
The discharging of device flows to discharging opening from downflow weir 3 top, prevents out material strip gas.
As preferred embodiment, the reative cell division board 5 within generally described oxidation reactor 1 is divided into 5
Oxidizing chamber.Each oxidizing chamber bottom design has oxidation air distributor；Division board bottom between each oxidizing chamber has UNICOM
Hole；In the other end of import, exit is designed with downflow weir 3 to oxidation solution discharging opening 2, and the discharging of oxidation reactor 1 is from downflow weir 3
Top flows to discharging opening.Cyclohexane Oxidation Unit is provided with outer circulation pump and outer circulation cooler, the oxidation solution of each oxidizing chamber
Outer circulation pump 15 can be passed through, Returning reactor charging aperture after outer circulation cooler 16 cooling, to control oxidation solution in reaction
The time of staying of device and oxygenation efficiency.
Work process of the present utility model is：After hexamethylene material liquid heats through feed heater 17, with oxidation cycle liquid
Cocurrent enters in reactor.Reactor division board 5 is divided into 5 oxidizing chambers, and division board 5 bottom between each oxidizing chamber is opened
There is intercommunicating pore.Each oxidizing chamber bottom is also devised with oxidation air distributor 7, and compressed air is entered respectively by air sparger 7
Hexamethylene in oxidizing chamber, with feeding liquid carries out oxidation reaction.Reacted oxidation solution outlet is in the other end of import, exit
It is designed with downflow weir 3, the discharging of oxidation reactor flows to discharging opening from downflow weir 3 top.
In addition, for controlling oxidation solution in time of staying of reaction unit and oxygenation efficiency, Cyclohexane Oxidation Unit is additionally provided with outer
Circulating pump and outer circulation cooler, the oxidation solution of each oxidizing chamber can pass through outer circulation pump, after the cooling of outer circulation cooler, then
Returning reactor import.
Detailed process is：Hexamethylene 13 to be oxidized is passed through feed heater 17, after being heated to 160-180 DEG C, enters oxygen
Change the 1# oxidizing chamber of reactor 1, mix with hexamethylene after the allocated device of air 7 bubbling being passed through 1# room, part hexamethylene quilt
Oxidation, the material of 1# room passes through the intercommunicating pore 6 of dividing plate bottom, enters 2# room, and the air that 2# room blasts divides also by 2# room air
Cloth device bubbling, air is mixed with material, continues oxidizing process.3# and 4# oxidizing chamber adopts same course of reaction successively, to 5#
During room, the oxidation solution after oxidation enters left side separation chamber, the gas in removing liquid from overflow plate 3 jacking.Oxidation solution is by reactor
The mouth of pipe 2 of bottom flows out, and completes course of reaction.
There is a discharging opening in each oxidizing chamber bottom, discharging oxidized liquid circulating pump 15 pressurized circulation, with cooling water 18
Homoiothermic, because cyclohexane oxidation is an exothermic reaction, is removed after partial reaction heat with recirculation cooler 16, Matter Transfer returns
Charging aperture.
Of the present utility model ultimate principle, principal character and advantage have been shown and described above.The ordinary skill of this area
Personnel are not it should be appreciated that above-described embodiment limits protection domain of the present utility model, all employing equivalents etc. in any form
The technical scheme that mode is obtained, all falls within protection domain of the present utility model.
This utility model is not directed to partly all same as the prior art or can be realized using prior art.
Claims (2)
1. a kind of Cyclohexane Oxidation Unit it is characterised in that：Including a horizontal multicell oxidation reactor（1）, feed heater
（17）, oxidation solution circulating pump（15）, recirculation cooler（16）, described oxidation reactor（1）One end be provided with reaction feed mouth, separately
One end is provided with oxidation solution discharging opening（2）, described reaction feed mouth respectively with described feed heater（17）And recirculation cooler
（16）Connect, described oxidation reactor（1）Internal reative cell（4）Use division board（5）It is divided into 4-6 oxidizing chamber, each oxygen
Change room bottom and be provided with air sparger（7）, and each oxidizing chamber is sequentially connected described oxidation solution circulating pump by pipeline（15）
And recirculation cooler（16）, the division board between each oxidizing chamber simultaneously（5）Bottom has intercommunicating pore（6）, in the oxidation of end
Room and oxidation solution discharging opening（2）Between be provided with downflow weir（3）, the discharging of oxidation reactor is from downflow weir（3）Top flows to discharging
Mouthful.
2. a kind of Cyclohexane Oxidation Unit according to claim 1 it is characterised in that：Described oxidation reactor（1）Internal
Reative cell division board（5）It is divided into 5 oxidizing chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856109.XU CN205933692U (en) | 2016-08-10 | 2016-08-10 | Cyclohexane oxidation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856109.XU CN205933692U (en) | 2016-08-10 | 2016-08-10 | Cyclohexane oxidation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205933692U true CN205933692U (en) | 2017-02-08 |
Family
ID=57922173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620856109.XU Active CN205933692U (en) | 2016-08-10 | 2016-08-10 | Cyclohexane oxidation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205933692U (en) |
-
2016
- 2016-08-10 CN CN201620856109.XU patent/CN205933692U/en active Active
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