CN206680415U - Isopropyl benzene hydroperoxide normal pressure tubular reactor - Google Patents
Isopropyl benzene hydroperoxide normal pressure tubular reactor Download PDFInfo
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- CN206680415U CN206680415U CN201720418084.XU CN201720418084U CN206680415U CN 206680415 U CN206680415 U CN 206680415U CN 201720418084 U CN201720418084 U CN 201720418084U CN 206680415 U CN206680415 U CN 206680415U
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Abstract
Isopropyl benzene hydroperoxide normal pressure tubular reactor, belongs to organic peroxide oxidation unit technical field, and the reactor includes reactor, spiral tube exchanger, condenser, connecting line, it is characterised in that described reactor（11）>=2, reactor group is interconnected to form with flange, reactor group >=4, charging aperture is formed with the tube wall of left first reactor group of number, discharging opening is formed with the tube wall of right first reactor group of number, reactor group one end after connection is connected by reactor connecting tube and condenser connecting tube with condenser, the tube wall of the other end is built with air distributor, it is connected by air inlet pipe connected pipe flange with air inlet pipe connected pipe, air inlet pipe connected pipe is connected with air inlet pipe, air inlet pipe is connected with air compressor machine, and reactor is built with spiral tube exchanger.Structure of reactor of the present utility model is simple, cheap, easy to use, and production efficiency is high, and product purity can reach 95% or so, and the security of equipment significantly improves.
Description
Technical field
The utility model belongs to organic peroxide oxidation unit technical field, and in particular to one kind is using isopropylbenzene and sky
Gas oxidation reaction generates the normal pressure tubular reactor of isopropyl benzene hydroperoxide.
Background technology
Air-oxidation reaction generation isopropyl benzene hydroperoxide（Abbreviation CHP), it is that cumene method production peroxidating is different
Propyl benzene（DCP first step reaction), and most important reaction.Existing cumene oxidation reaction is influenceed very big by pH value.If
Acidity is big in reaction system, that is, pH value is low, then very unfavorable to oxidation reaction.Because acidic materials can promote CHP to decompose, and
And the phenol product that acid decomposes further suppresses the progress reacted.So need by pH value control in certain scope, one
As industrial control ph be 3~7.Acidic materials in reaction system are mainly the formic acid and benzene first for aoxidizing side reaction generation
Acid.Sometimes the carbon dioxide content in air increases, atmosphere pollution, or carries some acidic materials in charging isopropylbenzene.
In cumene oxidation production, in order to neutralize acidic materials, in oxidizing process intermediate gap or continue through intermittent into oxidizing tower
Manually add the aqueous solution or basic salt of the alkali of certain volume low-concentration in ground（Such as sodium carbonate）The aqueous solution solve.Alkali between artificial
Liquid, control hysteresis be present, it is big into the fluctuation of oxidative system alkali concn, add alkali regular poor, can not accurately control oxidation reaction oxygen
Change liquid pH value the problems such as, while DCP condensation production technology use acidic catalyst, when oxidation solution in neutrality or meta-alkalescence, also
Condensation reaction can be caused to slow, do not reacted even.
At present, equipment mainly has two kinds used by air-oxidation reaction generation isopropyl benzene hydroperoxide, one kind
It is the multi-tower type oxidation reactor that Helcles companies of the U.S. use.Another kind is the big volume that UOP uses
Slot type oxidation reactor.The acidic materials generated in oxidation reaction process all can not be excluded reactor in time by two kinds of reactors.
The accumulation of acidic materials reduces pH value, is suppressed the oxidation reaction of isopropylbenzene and air, thus the reactant generated is dense
Degree at most can only achieve 20% or so.Second, because CHP is unstable, thermally decomposed, at 80 DEG C, thermal decomposition is more serious, temperature
When degree raises again, thermal decomposition is more violent, in the case where upgrading system has acid, often therefore explodes, therefore,
Oxidation solution can not be concentrated with air-distillation, and the security of two kinds of devices needs further to be improved.3rd, above two reactor returns
Mixed serious, by-product yields are more, account for 10% of purpose product or so, selectivity is bad.4th, air residence time is short, oxygen profit
It is low with rate.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, and cheap, production efficiency is high, and security is good, normal pressure
The lower isopropyl benzene hydroperoxide oxidation reactor used.
The purpose of this utility model is achieved through the following technical solutions：Isopropyl benzene hydroperoxide normal pressure pipe reaction
Device, including reactor, spiral tube exchanger, condenser, connecting line, described reactor, spiral tube exchanger, condenser lead to
Cross connecting line connection, it is characterised in that described reactor >=2, reactor group, reactor are interconnected to form with flange
Group >=4, charging aperture is formed with the tube wall of left first reactor group of number, is formed with out on the tube wall of right first reactor group of number
Material mouth, reactor group one end after connection are connected by reactor connecting tube and condenser connecting tube with condenser, the other end
Tube wall is connected, air inlet pipe connected pipe is with entering built with air distributor by air inlet pipe connected pipe flange with air inlet pipe connected pipe
Tracheae is connected, and air inlet pipe is connected with air compressor machine, and the top of described condenser is equipped with reaction gas outlet, and reactor is built with spiral shell
Coil heat exchanger.
Further, it is characterised in that second reactor group pipe of tube wall and right number of described second reactor group of left number
Reaction mass delivery pipe is connected between wall, flowmeter is housed on described air inlet pipe connected pipe.
Further, it is characterised in that be equably formed with hole on described air distributor.
The production technology of the utility model isopropyl benzene hydroperoxide normal pressure tubular reactor, it is characterised in that：
(1) reaction mass is pumped into reactor by with feed pump by charging aperture；
(2) air is pressed into air inlet pipe and air inlet pipe connected pipe by air compressor machines, after air distributor evenly distributes air
Into reactor；
(3) in reactor, heat transferring medium is heated by spiral tube heat exchanger, and temperature control is at 70-90 DEG C, reaction
Material is sufficiently mixed with air, carries out oxidation reaction at ambient pressure；
(4) the sour gas of oxidation reaction generation is discharged after cooler cools down by reaction gas outlet；
(5) after is by reaction of high order, the reactant of generation is discharged from discharging opening.
The utility model realizes following beneficial effect：
1. isopropyl benzene hydroperoxide normal pressure tubular reactor of the present utility model is simple in construction, cheap, easy to use；
2. because equipment can exclude the sour gas that is generated in oxidation reaction process in real time, course of reaction will not be pressed down
System, therefore the production efficiency of equipment is high, the concentration of oxidation reaction product can reach more than 40%, be improved than existing equipment
100%；
3. the crude product that successive reaction is sent out obtains alkaline hydrogen peroxide isopropylbenzene purity after concentrate, alkali cleaning to be reached
95% or so, about improve 20% than existing equipment；
4. due to the reaction temperature that oxidation reactor can be precisely controlled by the heat exchanger and cooler of reactor, therefore
The security of equipment significantly improves；
5. almost there is no air-teturning mixed phenomenon in reactor, therefore CHP purity is high, impurity is few.
Brief description of the drawings
Fig. 1 is the diagram of isopropyl benzene hydroperoxide normal pressure tubular reactor of the present invention.
Fig. 2 is the air distributor top view of isopropyl benzene hydroperoxide normal pressure tubular reactor of the present invention.
In figure：1- air compressor machines, 2- flowmeters, 3- air distributors, 4- spiral tube exchangers, 5- condensers, 6-
Reactor connecting tube, 7- air inlet pipe, 8- charging apertures, 9- discharging openings, 10- reaction mass delivery pipes, 11- reactors, 12-
Reaction gas outlet, 13- condenser connecting tubes, 14- air inlet pipe connected pipes, 15- air inlet pipe connected pipe flanges, 16- air
Dispensing orifice.
Illustrate embodiment of the present utility model below in conjunction with the accompanying drawings.
Embodiment
Embodiment 1
Isopropyl benzene hydroperoxide normal pressure tubular reactor of the present utility model, including reactor 11, spiral tube exchanger 4,
Condenser 5, connecting line.Described reactor 11, spiral tube exchanger 4, condenser 5 are connected by connecting line.Described
Reactor 11 be 5, reactor group is interconnected to form by flange, the reactor group one end formed after connection by flange with
Reactor connecting tube 6 connects.The other end of reactor connecting tube 6 is connected by flange with condenser connecting tube 13.Condenser connects
Adapter 13 is connected with condenser 5, and the top of condenser 5 is equipped with reaction gas outlet 12, for excluding the acid of oxidation reaction generation
Property gas.The pipeline of the described reactor group other end is equably formed with sky built with air distributor 3 on air distributor 3
Qi leel distribution 16.The pipeline of the reactor group other end is connected by air inlet pipe connected pipe flange 15 with air inlet pipe connected pipe 14.Enter
Tracheae connecting tube 14 is connected with air inlet pipe 7, and described air inlet pipe 7 is connected with air compressor machine 1.Air distributor 3 is a metallic plate,
It is made up of ferrous materials.Equably be formed with metallic plate can by the hole of gas, what the hole made can input air compressor machine 1
Air is evenly distributed in tubular reactor group.Reactor 11 is built with spiral tube exchanger 4, spiral tube exchanger 4 and warm
Source connects.Charging aperture 8 is formed with the tube wall of left first reactor group of number, described reactor group is 4.Right number first is anti-
Answer and discharging opening 9 is formed with the tube wall of device group, the tube wall of left second reactor group of number and the tube wall of right second reactor group of number
Between be connected with reaction mass delivery pipe 10.Flowmeter 2 is housed on described air inlet pipe connected pipe 14, connected for determining air inlet pipe
Air mass flow in adapter 14.
Processing step during isopropyl benzene hydroperoxide normal pressure tubular reactor produced of the present utility model is：Led to feed pump
Cross charging aperture 8 and reaction mass is pumped into reactor 11；Air is pressed into air inlet pipe 7 and air inlet pipe connected pipe 14 by air compressor machine 1, through sky
Qi leel orchestration 3 enters reactor 11 after air is evenly distributed；In reactor 11, heat transferring medium passes through spiral tube exchanger 4
Heating, at 80 DEG C, reaction mass is sufficiently mixed temperature control with air, carries out oxidation reaction at ambient pressure；Oxidation reaction generates
Sour gas discharged after the cooling of cooler 5 by reacting gas outlet；After reaction of high order, the reactant of generation
Discharged from discharging opening 9.
Embodiment 2
The reactor 11 of isopropyl benzene hydroperoxide normal pressure tubular reactor of the present utility model is 6, and reactor group is 8
Individual, the remaining part and connected mode of isopropyl benzene hydroperoxide normal pressure tubular reactor are same as Example 1.
Technique during isopropyl benzene hydroperoxide normal pressure tubular reactor produced of the present utility model is in reactor 11, is changed
Thermal medium is heated by spiral tube exchanger 4, and at 70 DEG C, reaction mass is sufficiently mixed temperature control with air, is entered at ambient pressure
Row oxidation reaction, remaining technique are same as Example 1.
Embodiment 3
The reactor 11 of isopropyl benzene hydroperoxide normal pressure tubular reactor of the present utility model is 7, and reactor group is 12
Individual, the remaining part and connected mode of isopropyl benzene hydroperoxide normal pressure tubular reactor are same as Example 1.
Technique during isopropyl benzene hydroperoxide normal pressure tubular reactor produced of the present utility model is in reactor 11, is changed
Thermal medium is heated by spiral tube exchanger 4, and at 90 DEG C, reaction mass is sufficiently mixed temperature control with air, is entered at ambient pressure
Row oxidation reaction, remaining technique are same as Example 1.
Claims (3)
1. isopropyl benzene hydroperoxide normal pressure tubular reactor, including reactor (11), spiral tube exchanger（4）, condenser（5）,
Connecting line, described reactor (11), spiral tube exchanger（4）, condenser（5）Connected by connecting line, its feature exists
In described reactor（11）>=2, reactor group is interconnected to form with flange, reactor group >=4, left number first is instead
Answer and be formed with charging aperture on the tube wall of device group（8）, discharging opening is formed with the tube wall of right first reactor group of number（9）, after connection
Reactor group one end passes through reactor connecting tube（6）With condenser connecting tube（13）With condenser（5）Connection, the tube wall of the other end
Built with air distributor（3）, pass through air inlet pipe connected pipe flange（15）With air inlet pipe connected pipe（14）Connection, air inlet pipe connection
Pipe（14）With air inlet pipe（7）Connection, air inlet pipe（7）With air compressor machine（1）Connection, described condenser（5）Top equipped with reaction
Gas outlet（12）, reactor（11）Built with spiral tube exchanger（4）.
2. such as described isopropyl benzene hydroperoxide normal pressure tubular reactor in claim 1, it is characterised in that described left number the
Reaction mass delivery pipe is connected between second reactor group tube wall of tube wall and right number of two reactor groups（10）, it is described
Air inlet pipe connected pipe（14）It is upper that flowmeter is housed（2）.
3. such as isopropyl benzene hydroperoxide normal pressure tubular reactor described in claim 1 or 2, it is characterised in that described air
Distributor（3）On be equably formed with hole（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720418084.XU CN206680415U (en) | 2017-04-20 | 2017-04-20 | Isopropyl benzene hydroperoxide normal pressure tubular reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720418084.XU CN206680415U (en) | 2017-04-20 | 2017-04-20 | Isopropyl benzene hydroperoxide normal pressure tubular reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206680415U true CN206680415U (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720418084.XU Active CN206680415U (en) | 2017-04-20 | 2017-04-20 | Isopropyl benzene hydroperoxide normal pressure tubular reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905211A (en) * | 2017-04-20 | 2017-06-30 | 辽宁抚清助剂有限公司 | Isopropyl benzene hydroperoxide normal pressure tubular reactor and production technology |
| WO2022202128A1 (en) * | 2021-03-24 | 2022-09-29 | 住友化学株式会社 | Production equipment and production method for cumene hydroperoxide |
-
2017
- 2017-04-20 CN CN201720418084.XU patent/CN206680415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905211A (en) * | 2017-04-20 | 2017-06-30 | 辽宁抚清助剂有限公司 | Isopropyl benzene hydroperoxide normal pressure tubular reactor and production technology |
| WO2022202128A1 (en) * | 2021-03-24 | 2022-09-29 | 住友化学株式会社 | Production equipment and production method for cumene hydroperoxide |
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