CN201106029Y - Four-stage series chlorohydrination reaction device - Google Patents
Four-stage series chlorohydrination reaction device Download PDFInfo
- Publication number
- CN201106029Y CN201106029Y CNU2007200971561U CN200720097156U CN201106029Y CN 201106029 Y CN201106029 Y CN 201106029Y CN U2007200971561 U CNU2007200971561 U CN U2007200971561U CN 200720097156 U CN200720097156 U CN 200720097156U CN 201106029 Y CN201106029 Y CN 201106029Y
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- propylene
- chlorine
- chlorohydrination
- liquid separator
- upcast
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Abstract
A four-stage independent chlorohydrination reaction device for producing propylene epoxide relates to a propylene epoxide production device and comprises four-stage independent chlorohydrination reactors which are communicated in series. The chlorohydrination reactor comprises a vapour liquid separator, a chlorine pre-dissolver, a downcomer and a propylene riser, wherein, the top part of the propylene riser is connected with the bottom part of the vapour liquid separator, the bottom part of the downcomer is connected with the side part of the propylene riser, and the top part of the downcomer is connected with the bottom part of the vapour liquid separator through the chlorine pre-dissolver; the bottom parts of the propylene riser and the chlorine pre-dissolver are respectively provided with a propylene inlet and a chlorine inlet which are respectively provided with a propylene distributor and a chlorine distributor. The four-stage independent chlorohydrination reaction device has the beneficial effects that the reaction device overcomes the shortages of low capacity, low propylene conversion ratio and more byproducts of the single-tower reactor.
Description
Affiliated technical field
The utility model relates to a kind of production of propylene oxide device, specially refers to the used chlorohydrination reactor of a kind of production of propylene oxide.
Background technology
Product propylene is the derived product of propylene, is very important Organic Chemicals, is mainly used in the production polyether glycol, produces urethane foam with it.At present, the production of propylene oxide at home, generally adopt the chlorohydrination production technology, be divided into the introduction of foreign technology and digest development technique voluntarily, introduce technology or independently developed technology no matter be, generally all adopt single tower reactor technology, its shortcoming is that throughput is low, the raw material consumption height, side reaction is many, and the special byproduct propylene dichloride environmental pollution that produces is very big, though some enterprises update device structure and technology, but effect is not satisfactory, has restricted the production-scale expansion of propylene oxide by chlorohydrination thus.
Summary of the invention
The utility model adopts level Four series connection chlorohydrination reactor, overcome single tower reactor, production capacity is little, propylene conversion is low, the shortcoming that by product is many, along with the increase of reactor progression, the effective transformation efficiency of throughput and propylene improves by the multiplying power of progression increase, and raw material consumption descends by the multiplying power of progression increase.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of level Four polyphone chlorohydrin action device, comprise level Four independence chlorohydrination reactor, described chlorohydrination reactor comprises vapour liquid separator, the pre-molten device of chlorine, downtake, propylene upcast, described chlorohydrination reactor also comprises propylene sparger and chlorine gas distributor, and described chlorohydrination reactor is that level Four is connected in series.
The utility model level Four polyphone chlorohydrin action device, the top of described propylene upcast links to each other with the vapour liquid separator bottom, the bottom of downtake links to each other with propylene upcast sidepiece, its top links to each other by the bottom of pre-molten device of chlorine and vapour liquid separator, and the pre-molten device of propylene upcast and chlorine bottom is respectively equipped with propylene inlet and chlorine inlet.
The utility model level Four polyphone chlorohydrin action device, described propylene sparger and chlorine gas distributor are located at propylene upcast and the pre-molten device bottom inlet of chlorine place respectively.
The beneficial effects of the utility model are, overcome single tower reactor, production capacity is little, propylene conversion is low, and the shortcoming that by product is many makes throughput increase with placed in-line progression and improves, raw material (propylene, chlorine) increase that consumes with placed in-line progression reduces, and throughput is improved, and has reached the purpose of this utility model.
Description of drawings
Fig. 1 is the utility model level Four polyphone chlorohydrin action device synoptic diagram.
Fig. 2 is a chlorohydrination reactor structural representation in the utility model.
1. vapour liquid separators among the figure; 2. the pre-molten device of chlorine; 3. downtake; 4. propylene upcast; 5. chlorine enters the mouth; 6. propylene enters the mouth; 7. water inlet; 8. propylene sparger; 9. chlorine gas distributor.
Embodiment
By accompanying drawing as can be known, the utility model comprises level Four independence chlorohydrination reactor, and parallel-series connects and connects.Described chlorohydrination reactor comprises vapour liquid separator 1, the pre-molten device 2 of chlorine, downtake 3, propylene upcast 4, wherein the top of propylene upcast 4 links to each other with vapour liquid separator 1 bottom, the bottom of downtake 3 links to each other with propylene upcast 4 sidepieces, its top links to each other by the bottom of pre-molten device 2 of chlorine and vapour liquid separator 1, the pre-molten device of propylene upcast 4 and chlorine 2 bottoms are respectively equipped with propylene inlet 6 and chlorine inlet 5, also are respectively equipped with propylene sparger 8 and chlorine gas distributor 9 at propylene upcast 4 and the pre-molten device of chlorine 2 bottom inlet places.
The utility model adopts level Four series connection chlorohydrination reactor, overcome single tower reactor, production capacity is little, propylene conversion is low, the shortcoming that by product is many, along with the increase of reactor progression, the effective transformation efficiency of throughput and propylene improves by the multiplying power of progression increase, and raw material consumption descends by the multiplying power of progression increase.Certain whole device is not to adopt the level Four series connection, increase with series connection progression, investment cost increases, flow process prolongs, and manipulation strength increases, and potential energy is installed is risen, raw material carries kinetic energy to increase, consider that from these several respects the increase of series connection progression is too much unsuitable, but from increasing throughput, improve feed stock conversion, cut down the consumption of raw materials, reduce aspect considerations such as side reaction, series connection progression is The more the better, factor has it both ways, the utility model has been considered the level Four tandem process, satisfies the requirement of above two aspects, reaches best joint.
The utility model level Four polyphone chlorohydrin action device, raw water feeds the pre-molten device 2 of chlorine earlier, propylene feeds from propylene upcast 4, chlorine feeds from the bottom of the pre-molten device 2 of chlorine, the propylene chlorohydrin (producing the intermediates of propylene oxide) that generates through chlorohydrin action enters vapour liquid separator 1, there is most of propylene chlorohydrin reaction solution to do internal recycling to propylene upcast 4 from downtake 3, some propylene chlorohydrin reaction solution, enter next chlorohydrination reactor continuously, after level Four is reacted successively, finally obtain producing the intermediates chloro-propanol aqueous solution of propylene oxide.
Claims (3)
1, a kind of level Four polyphone chlorohydrin action device, comprise level Four independence chlorohydrination reactor, it is characterized in that: described chlorohydrination reactor comprises vapour liquid separator (1), the pre-molten device of chlorine (2), downtake (3), propylene upcast (4), described chlorohydrination reactor also comprises propylene sparger (8) and chlorine gas distributor (9), and described chlorohydrination reactor is that level Four is connected in series.
2, according to the described level Four polyphone of claim 1 chlorohydrin action device, it is characterized in that: the top of described propylene upcast (4) links to each other with vapour liquid separator (1) bottom, the bottom of downtake (3) links to each other with propylene upcast (4) sidepiece, its top links to each other by the bottom of pre-molten device of chlorine (2) and vapour liquid separator (1), and the pre-molten device of propylene upcast (4) and chlorine (2) bottom is respectively equipped with propylene inlet (6) and chlorine inlet (5).
3, according to the described level Four polyphone of claim 1 chlorohydrin action device, it is characterized in that: described propylene sparger (8) and chlorine gas distributor (9) are located at propylene upcast (4) and the pre-molten device of chlorine (2) bottom inlet place respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200971561U CN201106029Y (en) | 2007-08-22 | 2007-08-22 | Four-stage series chlorohydrination reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200971561U CN201106029Y (en) | 2007-08-22 | 2007-08-22 | Four-stage series chlorohydrination reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106029Y true CN201106029Y (en) | 2008-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200971561U Expired - Fee Related CN201106029Y (en) | 2007-08-22 | 2007-08-22 | Four-stage series chlorohydrination reaction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201106029Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992967A (en) * | 2012-11-20 | 2013-03-27 | 于加全 | Method for improving concentration of chlorohydrination reaction chlorophydrin by circular reaction |
| CN103059286A (en) * | 2013-01-05 | 2013-04-24 | 扬州晨化科技集团有限公司 | Continuous hydrogenation ammoniation/amination reaction device |
-
2007
- 2007-08-22 CN CNU2007200971561U patent/CN201106029Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992967A (en) * | 2012-11-20 | 2013-03-27 | 于加全 | Method for improving concentration of chlorohydrination reaction chlorophydrin by circular reaction |
| CN103059286A (en) * | 2013-01-05 | 2013-04-24 | 扬州晨化科技集团有限公司 | Continuous hydrogenation ammoniation/amination reaction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20100822 |