CN207012597U - Oxidized tail gas retracting device in hydrogen peroxide process - Google Patents
Oxidized tail gas retracting device in hydrogen peroxide process Download PDFInfo
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- CN207012597U CN207012597U CN201720951383.XU CN201720951383U CN207012597U CN 207012597 U CN207012597 U CN 207012597U CN 201720951383 U CN201720951383 U CN 201720951383U CN 207012597 U CN207012597 U CN 207012597U
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- aromatic hydrocarbons
- tail gas
- hydrogen peroxide
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- aromatics seperation
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Abstract
The utility model discloses a kind of hydrogen peroxide oxidation device for recovering tail gas, is related to the recycling field of tail gas in hydrogen peroxide process, it mainly includes groove, aromatics seperation device and aromatic hydrocarbons storage tank among aromatic hydrocarbons.In Hydrogen Peroxide Production after oxidized tail gas condensation, from groove among condensate liquid input channel input aromatic hydrocarbons, again after groove among aromatic hydrocarbons flows into aromatics seperation device, after aromatic hydrocarbons is separated from water out, water is discharged from aromatics seperation device bottom, aromatic hydrocarbons is input to aromatic hydrocarbons storage tank from the aromatic hydrocarbons outlet of its underpart side, and the high-purity for realizing aromatic hydrocarbons recycles.The utility model solves the problems, such as that aromatic hydrocarbons band water is serious in the prior art, and obtained aromatic hydrocarbons can return to production system recycling, saved cost, improved Commercial cultivation rate.
Description
Technical field
It the utility model is related to hydrogen peroxide preparation tail gas recycle and utilize field, specially a kind of hydrogen peroxide oxidation tail gas recycle
Device, suitable for it is anthraquinone prepare hydrogen peroxide when, the recycling of oxidized tail gas.
Background technology
At present, what hydrogen hydrogen peroxide technique was most widely used is anthraquinone palladium catalyst fixed bed hydrogenation technique, the method
Using heavy aromatics, trioctyl phosphate and 2- EAQs as raw material, hydrogenated, oxidation, extraction, cleaning procedure obtain concentration and are
27.5% hydrogen peroxide, and wherein oxidation operation can produce a large amount of tail gas, its main component is aromatic hydrocarbons and water, if without recovery
Environmental pollution will be caused.Existing processing method is to condense aromatic hydrocarbons and water therein with oxidized tail gas cooler, then is reclaimed, but
Obtained aromatic hydrocarbons band water is serious, and separating effect is bad；If these aromatic hydrocarbons, which directly return to process units, which to be recycled, can cause system
Band water is serious, not only influences product quality, also greatly increases the danger of production process.Therefore after needing a kind of oxidation operation
The device that aromatic hydrocarbons mixture in its tail gas is reclaimed and separated.
The content of the invention
After the utility model is in order to solve hydrogen peroxide oxidation process, caused tail gas directly recycle band water it is serious and
The problem of influenceing product quality, there is provided hydrogen peroxide oxidation device for recovering tail gas after one kind is improved.
The utility model is achieved by the following technical solution：A kind of hydrogen peroxide oxidation device for recovering tail gas, including
Groove, aromatics seperation device and aromatic hydrocarbons storage tank among aromatic hydrocarbons, aromatic hydrocarbons centre groove top is provided with tail gas condensing liquid entrance, described
Tail gas condensing liquid entrance connects condensate liquid input channel, is provided with condensate outlet by trench bottom among the aromatic hydrocarbons；The condensation
Liquid outlet is connected with aromatics seperation device top entry pipeline, the inlet duct is provided with stop valve I, at the top of the aromatics seperation device
Provided with emptying spark arrester, the aromatics seperation device bottom separates out mouth provided with moisture；The water separation exit, which is sequentially installed with, to be regarded
Mirror and draining valve, the aromatics seperation device lower half side export provided with aromatic hydrocarbons, and the aromatic hydrocarbons outlet passes through pipe with aromatic hydrocarbons storage tank
Stop valve II is installed in road connection, the pipeline.
The utility model is on the basis of existing technology, to the device for recovering tail gas after oxidation operation in Hydrogen Peroxide Production
Improved, by the condensed aromatic hydrocarbons of exhaust gas cooler and water, after groove, aromatics seperation device among aromatic hydrocarbons, separation
For water and aromatic hydrocarbons, aromatic hydrocarbons is smaller than the density of water and the two is immiscible, therefore after aromatics seperation device, water sedimentation is in bottom, virtue
Hydrocarbon is located at portion waterborne, and the two is discharged from different outlets, has just obtained aromatic hydrocarbons of the high-purity without water.Because among aromatic hydrocarbons by
Groove is operation with pressure, therefore groove must keep inside to have liquid among aromatic hydrocarbons, it is impossible to is vented, therefore does not allow directly to exist
Direct standing separation in groove, must increase thereafter another pressure vessel among aromatic hydrocarbons（That is aromatics seperation device）Divide to realize to stand
From.Specially the condensation by mixing liquid of aromatic hydrocarbons and water through subcooling condensate input channel from tail gas condensing liquid entrance enter aromatic hydrocarbons among by
Groove, aromatic hydrocarbons centre groove serve the effect for the condensation by mixing liquid for collecting aromatic hydrocarbons and water, when the amount being collected into is larger, open virtue
Stop valve I among hydrocarbon centre groove and aromatics seperation device, makes the condensation by mixing liquid among aromatic hydrocarbons in groove be flowed into by pipeline
Aromatics seperation device.Aromatic hydrocarbons is volatile and inflammable, therefore emptying spark arrester is provided with the top of aromatics seperation device.By aromatics seperation device
Sufficient standing after, aromatic hydrocarbons and water are layered completely, and water level is below aromatic hydrocarbons, therefore, at aromatics seperation device outlet at bottom set
There is a visor, open draining valve, begin to decline the interface of aromatic hydrocarbons and water, when observing that interface drops to visor by visor
After below nearby, draining valve is closed, at this moment the water in aromatics seperation device has drained, and opens aromatics seperation device lower half side virtue
The stop valve II of hydrocarbon outlet, makes aromatic hydrocarbons flow into aromatic hydrocarbons storage tank, is so achieved that the recycling of aromatic hydrocarbons in tail gas condensing liquid.
A kind of hydrogen peroxide oxidation device for recovering tail gas of improvement provided by the utility model, can fully reclaim oxidized tail gas
In aromatic hydrocarbons, the moisture in further aromatics separation, solve the problems, such as that aromatic hydrocarbons band water is serious in the prior art, obtained aromatic hydrocarbons can
To return to production system recycling, cost is saved, has improved Commercial cultivation rate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：Groove among 1- aromatic hydrocarbons, 2- aromatics seperation devices, 3- aromatic hydrocarbons storage tanks, 4- stop valves I, 5- stop valves II, 6- rows
Water valve, 7- visors, 8- emptying spark arresters, 9- condensate liquid input channels, 10- tail gas condensing liquid entrances, 11- condensate outlets, 12-
Moisture separates out mouth, the outlet of 13- aromatic hydrocarbons.
Embodiment
Specific embodiment of the utility model is illustrated below in conjunction with the accompanying drawings.
A kind of hydrogen peroxide oxidation device for recovering tail gas, as shown in Figure 1：Including groove 1, the and of aromatics seperation device 2 among aromatic hydrocarbons
Aromatic hydrocarbons storage tank 3, the aromatic hydrocarbons centre top of groove 1 are provided with tail gas condensing liquid entrance 10, and the tail gas condensing liquid entrance 10 connects
Condensate liquid input channel 9, the aromatic hydrocarbons centre bottom of groove 1 are provided with condensate outlet 11；The condensate outlet 11 and aromatic hydrocarbons
The connection of the top entry pipeline of separator 2, the inlet duct are provided with stop valve I 4, and the top of aromatics seperation device 2 is provided with emptying
Spark arrester 8, the bottom of aromatics seperation device 2 separate out mouth 12 provided with moisture；The moisture, which separates out, is sequentially installed with visor 7 at mouth 12
With draining valve 6；The lower half side of aromatics seperation device 2 is provided with aromatic hydrocarbons outlet 13, and the aromatic hydrocarbons outlet 13 and aromatic hydrocarbons storage tank 3 are logical
Stop valve II 5 is installed in piping connection, the pipeline.
In the present embodiment, it is cold that condensate liquid input channel 9 connects the tail gas condensing liquid entrance on groove 1, tail gas among aromatic hydrocarbons
Lime set inputs groove 1 among aromatic hydrocarbons from condensate liquid input channel 9；The condensate outlet 11 and aromatic hydrocarbons of the bottom of groove 1 among aromatic hydrocarbons
The pipeline of separator 2 connects, and is switched by the control pipeline of stop valve I 4, when the tail gas condensing liquid being collected into reaches a certain amount of,
Stop valve I 4 is opened, tail gas condensing liquid stream is entered aromatics seperation device 2, because aromatic hydrocarbons is volatile and inflammable, therefore pacifies at the top of it
Equipped with emptying spark arrester 8, have the function that fire preventing.Due to needing to observe the interface of aromatic hydrocarbons and water in aromatics seperation device 2,
Therefore separated out in moisture and visor 7 is installed at mouth 12；Draining valve 6 is opened, declines the interface of aromatic hydrocarbons and water, when passing through visor
After 7 observe that interface drops to below near visor, draining valve 6 is closed, at this moment the water in aromatics seperation device 2 is from its bottom
Portion drains.Remaining part is aromatic hydrocarbons in aromatics seperation device 2, aromatic hydrocarbons outlet 13 is provided with the lower half side of aromatics seperation device 2, this goes out
Stop valve II 5 is also equipped with mouthful, opens stop valve II 5, aromatic hydrocarbons is flowed into aromatic hydrocarbons storage tank 3 through piping from aromatic hydrocarbons outlet 13.
Now aromatic hydrocarbons, which is separated from water, finishes, and improves purity and purifying rate that aromatic recovery utilizes.
In the present embodiment, have selected preferred scheme, stop valve I 4, stop valve II 5 and draining valve 6 using parameter this
DN80, Class150,0Cr18Ni9 valve, DN80 refer to the pressure rating that internal diameter refers to American Standard for 80, Class, and 0Cr18Ni9 is
Austenitic stainless steel, what the parameter was known to the skilled person.
In the present embodiment, preferred scheme is also have selected, aromatic hydrocarbons centre groove 1, aromatics seperation device 2 and aromatic hydrocarbons storage tank 3 are equal
Using 30408 stainless steels.
In the present embodiment, visor 7 is straight-through sight glass, and remaining pipes visor is equally applicable.
The scope of the requires of the utility model protection is not limited to above embodiment, for those skilled in the art
Speech, the utility model can have a various deformation and change, it is all made within design of the present utility model with principle any repair
Change, improve and equivalent substitution all should be included in the scope of protection of the utility model within.
Claims (4)
- A kind of 1. hydrogen peroxide oxidation device for recovering tail gas, it is characterised in that：Including groove among aromatic hydrocarbons（1）, aromatics seperation device（2） With aromatic hydrocarbons storage tank（3）, aromatic hydrocarbons centre groove（1）Top is provided with tail gas condensing liquid entrance（10）, the tail gas condensing liquid enters Mouthful（10）Connect condensate liquid input channel（9）, aromatic hydrocarbons centre groove（1）Bottom is provided with condensate outlet（11）；It is described cold Condensate outlet（11）With aromatics seperation device（2）The connection of top entry pipeline, the inlet duct are provided with stop valve I（4）；The virtue Hydrocarbon separator（2）Top is provided with emptying spark arrester（8）, the aromatics seperation device（2）Bottom separates out mouth provided with moisture（12）；It is described Moisture separates out mouth（12）Place is sequentially installed with visor（7）And draining valve（6）；The aromatics seperation device（2）Lower half side is provided with Aromatic hydrocarbons exports（13）, the aromatic hydrocarbons outlet（13）With aromatic hydrocarbons storage tank（3）Connected by pipeline, stop valve II is installed on the pipeline （5）.
- 2. hydrogen peroxide oxidation device for recovering tail gas according to claim 1, it is characterised in that：The stop valve I（4）, cut Only valve II（5）And draining valve（6）Use valve of the parameter for DN80, Class150,0Cr18Ni9.
- 3. hydrogen peroxide oxidation device for recovering tail gas according to claim 1, it is characterised in that：Groove among the aromatic hydrocarbons （1）, aromatics seperation device（2）With aromatic hydrocarbons storage tank（3）Use 30408 stainless steels.
- 4. hydrogen peroxide oxidation device for recovering tail gas according to claim 1, it is characterised in that：The visor（7）It is straight-through Visor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951383.XU CN207012597U (en) | 2017-08-01 | 2017-08-01 | Oxidized tail gas retracting device in hydrogen peroxide process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951383.XU CN207012597U (en) | 2017-08-01 | 2017-08-01 | Oxidized tail gas retracting device in hydrogen peroxide process |
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| Publication Number | Publication Date |
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| CN207012597U true CN207012597U (en) | 2018-02-16 |
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| CN201720951383.XU Active CN207012597U (en) | 2017-08-01 | 2017-08-01 | Oxidized tail gas retracting device in hydrogen peroxide process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502554A (en) * | 2019-01-28 | 2019-03-22 | 安徽晋煤中能化工股份有限公司 | A kind of green energy conservation Hydrogen Peroxide Production oxidation unit |
-
2017
- 2017-08-01 CN CN201720951383.XU patent/CN207012597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502554A (en) * | 2019-01-28 | 2019-03-22 | 安徽晋煤中能化工股份有限公司 | A kind of green energy conservation Hydrogen Peroxide Production oxidation unit |
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