CN203598807U - Device for producing epoxypropane by chlorohydrination - Google Patents
Device for producing epoxypropane by chlorohydrination Download PDFInfo
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- CN203598807U CN203598807U CN201320771675.7U CN201320771675U CN203598807U CN 203598807 U CN203598807 U CN 203598807U CN 201320771675 U CN201320771675 U CN 201320771675U CN 203598807 U CN203598807 U CN 203598807U
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Abstract
The utility model belongs to the field of chemical engineering, and specifically relates to a device for producing epoxypropane by chlorohydrination. The device comprises a propylene reaction tower which is sequentially connected with a chlorohydrination tower, a soaping tower, a rectifying tower and a refining tower through pipelines, wherein a first distributor and a second distributor are respectively arranged in the middle and lower parts inside the tower body of the propylene reaction tower, and a propylene inlet and a chlorine inlet are respectively arranged in positions on the wall of the tower body of the propylene reaction tower corresponding to the first and second distributors; the first and second distributors are cylindrical, the inner sides are hollow, and inner distribution layers, middle distribution layers and outer distribution layers are sequentially arranged on the outer sides from inside to outside. Holes are respectively formed in the inner distribution layers, middle distribution layers and outer distribution layers. A water inlet is arranged on the lower part of the tower body of the propylene reaction tower. The device provided by the utility model is good in distribution effect, so that chlorine and propylene are fully reacted in a water medium to reduce consumption of raw materials, and the resistance of the distribution pipe is reduced, so that the production requirement is satisfied, the service cycle is prolonged, and the requirement of improving the load of the device is satisfied.
Description
Technical field
The utility model belongs to chemical field, is specifically related to a kind of producing epoxypropane by chlorohydrination device.
Background technology
Expoxy propane is a kind of important Organic Chemicals, and producing propylene oxide by chlorohydrination method is because technique is simple, technology maturation receives much concern at present.Wherein propylene reaction tower is the important device in production process, and propylene feed and chlorine feed adopt distributor pipe, air inlet are uniformly distributed, the solute effect having reached.The distributor pipe using in prior art adopts micropore ceramics, although it is effective to distribute, in use earthenware easily stops up and breaks, and life cycle, at 3-4 month, usually causes device load down because distribution effect is bad.
Summary of the invention
The purpose of this utility model is to provide a kind of producing epoxypropane by chlorohydrination device, meets charging requirement, and life cycle can extend again, reduces investment, meets the requirement that device load improves.
Producing epoxypropane by chlorohydrination device described in the utility model, comprise propylene reaction tower, propylene reaction tower connects chlorohydrination tower, saponification column, rectifying column and treating column successively by pipeline, the middle part of propylene reaction tower tower body inside and bottom arrange respectively the first distributor and the second distributor, on the wall of propylene reaction tower tower body, on the position of corresponding the first distributor and the second distributor, propylene import and chlorine inlet are set respectively; Wherein the first distributor and the second distributor are cylinder type, inner hollow, and outside is provided with interior distribution layer, middle distribution layer and outer distribution layer from inside to outside successively, on interior distribution layer, middle distribution layer and outer distribution layer, is respectively equipped with hole.The bottom of propylene reaction tower tower body arranges water inlet.
The diameter in hole is 0.9-1.1mm.Interior distribution layer, middle distribution layer and the every layer thickness of outer distribution layer are 4-6mm.Hole on every layer of interior distribution layer, middle distribution layer and outer distribution layer is in staggered distribution.Between every layer of interior distribution layer, middle distribution layer and outer distribution layer, be spaced apart 2-3mm.On interior distribution layer, middle distribution layer and outer distribution layer, every layer of number that is respectively equipped with hole is 10-300.Interior distribution layer, middle distribution layer and outer distribution layer material are preferably polytetrafluoroethylene (PTFE), and the life-span is long.By improving, reduce the resistance of the distributor pipe of chlorine, propylene feed, meet production requirement, extend life cycle, meet the requirement that device load improves.
When use, chlorine enters from chlorine inlet, distribute through the second distributor, first the interior distribution layer that enters the second distributor distributes, enter again middle distribution layer and distribute, finally enter outer distribution layer and distribute, because the hole on every layer is in staggered distribution, reach good distribution effect, then entered propylene reaction tower from the second distributor pipe; Propylene enters from propylene import, distribute through the first distributor, first the interior distribution layer that enters the first distributor distributes, entering middle distribution layer distributes again, finally entering outer distribution layer distributes, because the hole on every layer is in staggered distribution, reach good distribution effect, then enter propylene reaction tower from the first distributor pipe.Fresh water (FW) enters propylene reaction tower from water inlet, after entering, water also constantly rises with the chlorine confluent lysis distributing, again with distribute after propylene generation chlorohydrin action, reaction generates chloropropyl alcohol solution and a small amount of accessory substance, then enters chlorohydrination tower, then enters saponification column through pipeline, obtains crude propene oxide through lime stone saponification, then enter rectifying column and treating column, crude propene oxide, through refining, is removed high-boiling components and low-boiling-point substance, obtains purity and is greater than more than 99.9% expoxy propane.
In sum, the utlity model has following advantage:
(1) the utility model distribution is effective, makes the fully reaction in the medium of water of chlorine, propylene, can cut down the consumption of raw materials more than 10%.
(2) the utility model has reduced the resistance of the distributor pipe of chlorine, propylene feed, has met production requirement, has extended life cycle, meets the requirement that device load improves, and life cycle can reach more than 3 years.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional view of distributor.
In figure: 1-chlorohydrination tower, 2-saponification column, 3-rectifying column, 4-treating column, 5-1-the first distributor, 5-2-the second distributor, 6-water inlet, 7-chlorine inlet, the import of 8-propylene, 9-propylene reaction tower,, distribution layer in 10-, distribution layer in 11-, the outer distribution layer of 12-, 13-hole.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described further.
Embodiment
As shown in Figure 1, comprise propylene reaction tower 9, propylene reaction tower 9 is follow-up connects chlorohydrination tower 1, saponification column 2, rectifying column 3 and treating column 4 successively by pipeline, the middle part of propylene reaction tower 9 tower body inside and bottom arrange respectively the first distributor 5-1 and the second distributor 5-2, on the wall of propylene reaction tower 9 tower bodies, on the position of corresponding the first distributor 5-1 and the second distributor 5-2, propylene import 8 and chlorine inlet 7 are set respectively; Wherein the first distributor 5-1 and the second distributor 5-2 are cylinder type, inner hollow, as shown in Figure 2, outside is provided with interior distribution layer 10, middle distribution layer 11 and outer distribution layer 12 from inside to outside successively, on interior distribution layer 10, middle distribution layer 11 and outer distribution layer 12, is respectively equipped with hole 13.The bottom of propylene reaction tower 9 tower bodies arranges water inlet 6.The diameter in hole 13 is 1mm.Interior distribution layer 10, middle distribution layer 11 and the every layer thickness of outer distribution layer 12 are 5mm.The hole 13 of interior distribution layer 10, middle distribution layer 11 and outer distribution layer 12 on every layer is in staggered distribution.Interior distribution layer 10, middle distribution layer 11 and outer distribution layer 12 is spaced apart 3mm between every layer.
When use, chlorine enters from chlorine inlet 7, distribute through the second distributor 5-2, first the interior distribution layer 10 that enters the second distributor 5-2 distributes, enter again middle distribution layer 11 and distribute, finally enter outer distribution layer 12 and distribute, because the hole on every layer 13 is in staggered distribution, reach good distribution effect, then entered propylene reaction tower 9 from the second distributor pipe 5-2; Propylene enters from propylene import 8, distribute through the first distributor 5-1, first the interior distribution layer 10 that enters the first distributor 5-1 distributes, entering middle distribution layer 11 distributes again, finally entering outer distribution layer 12 distributes, because the hole on every layer 13 is in staggered distribution, reach good distribution effect, then enter propylene reaction tower 9 from the first distributor pipe 5-1.Fresh water (FW) enters propylene reaction tower 9 from water inlet 6, after entering, water also constantly rises with the chlorine confluent lysis distributing, again with distribute after propylene generation chlorohydrin action, reaction generates chloropropyl alcohol solution and a small amount of accessory substance, then enters chlorohydrination tower 1, then enter saponification column 2 through pipeline, obtain crude propene oxide through lime stone saponification, then enter rectifying column 3 and treating column 4, crude propene oxide is through refining, remove high-boiling components and low-boiling-point substance, obtain purity and be greater than more than 99.9% expoxy propane.
Claims (7)
1. a producing epoxypropane by chlorohydrination device, it is characterized in that: comprise propylene reaction tower (9), propylene reaction tower (9) connects chlorohydrination tower (1), saponification column (2), rectifying column (3) and treating column (4) successively by pipeline, the middle part of propylene reaction tower (9) tower body inside and bottom arrange respectively the first distributor (5-1) and the second distributor (5-2), and propylene import (8) and chlorine inlet (7) are set respectively on the position of corresponding the first distributor (5-1) and the second distributor (5-2) on the wall of propylene reaction tower (9) tower body; Wherein the first distributor (5-1) and the second distributor (5-2) are cylinder type, inner hollow, outside is provided with interior distribution layer (10), middle distribution layer (11) and outer distribution layer (12) from inside to outside successively, on interior distribution layer (10), middle distribution layer (11) and outer distribution layer (12), is respectively equipped with hole (13).
2. producing epoxypropane by chlorohydrination device according to claim 1, is characterized in that: the bottom of propylene reaction tower (9) tower body arranges water inlet (6).
3. producing epoxypropane by chlorohydrination device according to claim 1, is characterized in that: the diameter of hole (12) is 0.9-1.1mm.
4. producing epoxypropane by chlorohydrination device according to claim 1, is characterized in that: interior distribution layer (10), middle distribution layer (11) and the every layer thickness of outer distribution layer (12) are 4-6mm.
5. according to the producing epoxypropane by chlorohydrination device described in claim 1 or 3, it is characterized in that: the hole (13) on every layer of interior distribution layer (10), middle distribution layer (11) and outer distribution layer (12) is in staggered distribution.
6. producing epoxypropane by chlorohydrination device according to claim 1, is characterized in that: between every layer of interior distribution layer (10), middle distribution layer (11) and outer distribution layer (12), be spaced apart 2-3mm.
7. producing epoxypropane by chlorohydrination device according to claim 1, is characterized in that: the upper every layer of number that is respectively equipped with hole (13) of interior distribution layer (10), middle distribution layer (11) and outer distribution layer (12) is 10-300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771675.7U CN203598807U (en) | 2013-11-28 | 2013-11-28 | Device for producing epoxypropane by chlorohydrination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320771675.7U CN203598807U (en) | 2013-11-28 | 2013-11-28 | Device for producing epoxypropane by chlorohydrination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203598807U true CN203598807U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320771675.7U Expired - Fee Related CN203598807U (en) | 2013-11-28 | 2013-11-28 | Device for producing epoxypropane by chlorohydrination |
Country Status (1)
| Country | Link |
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| CN (1) | CN203598807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152577A (en) * | 2019-06-26 | 2019-08-23 | 天津大沽化工股份有限公司 | A kind of device and method removing propylene tar-like substance |
| CN113750937A (en) * | 2021-08-18 | 2021-12-07 | 江媛媛 | Purification system of epoxypropane |
-
2013
- 2013-11-28 CN CN201320771675.7U patent/CN203598807U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152577A (en) * | 2019-06-26 | 2019-08-23 | 天津大沽化工股份有限公司 | A kind of device and method removing propylene tar-like substance |
| CN110152577B (en) * | 2019-06-26 | 2023-08-29 | 天津大沽化工股份有限公司 | Device and method for removing propylene tar matters |
| CN113750937A (en) * | 2021-08-18 | 2021-12-07 | 江媛媛 | Purification system of epoxypropane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140521 Termination date: 20171128 |