CN107098789A - A kind of propylene water scavenging system - Google Patents
A kind of propylene water scavenging system Download PDFInfo
- Publication number
- CN107098789A CN107098789A CN201710265250.1A CN201710265250A CN107098789A CN 107098789 A CN107098789 A CN 107098789A CN 201710265250 A CN201710265250 A CN 201710265250A CN 107098789 A CN107098789 A CN 107098789A
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- CN
- China
- Prior art keywords
- propylene
- tank
- pipeline
- level
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
- C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
Abstract
The present invention relates to chloropropene production equipment field, more particularly to a kind of propylene water scavenging system.Including propylene feedstocks tank, it is characterised in that：The propylene feedstocks tank is connected by pipeline with water washing tank；Propylene enters first-level buffer tank after washing by pipeline；The first-level buffer tank is connected by pipeline with stage compressor；Propylene enters one-level cooling driers after the stage compressor and removed water；The one-level cooling driers connect level 2 buffering tank by pipeline；The level 2 buffering tank is connected with split-compressor by pipeline, and split-compressor is connected by pipeline with two grades of cooling driers；Propylene is stored in propylene tank after two grades of cooling driers water removal, and the propylene tank is connected with molecular sieve drying system；The molecular sieve drying system is connected with dry propylene tank.The present invention can effectively remove the moisture in propylene, it is therefore prevented that the corrosion of consersion unit；And the convenient maintenance of the complete equipment, processing propylene effect height.
Description
（One）Technical field
The present invention relates to chloropropene production equipment field, more particularly to a kind of propylene water scavenging system.
（Two）Background technology
Chloropropene, chemicals, colourless liquid is a kind of organic synthesis raw material.Can be as production epoxychloropropane, propenyl, sweet
The intermediate of oil etc., the solvent as special reaction is also the raw material of agricultural chemicals, medicine, spices, coating.For organic synthesis and
Pharmaceuticals industry, chlorallylene also known as allyl chloride, are a kind of organic synthesis raw materials, and synthetic insecticide list, desinsection are used on agricultural chemicals
Double and cartap intermediate N, N- dimethyl propylene amine and pyrethroid intermediate propylene alcohol ketone, are also medicine in addition, close
The important source material of resin, coating, spices etc..
Raw material in the preparation process of chloropropene includes propylene, and preparation method has a high-temperature chlorination, propylene process for oxychlorination and
Propenyl chloridising；And in high-temperature chlorination production, propylene must be dried, because with the water lacked in propylene feedstocks
Point, on the one hand influence reaction process reduces reaction yield, and another aspect moisture is mixed with chlorine to produce corrosion to equipment.
（Three）The content of the invention
There is provided a kind of propylene water scavenging system in order to make up the deficiencies in the prior art by the present invention.
The present invention is achieved through the following technical solutions：
A kind of propylene water scavenging system, including propylene feedstocks tank, it is characterised in that：The propylene feedstocks tank passes through pipeline and water washing tank
Connection；Propylene enters first-level buffer tank after washing by pipeline；The first-level buffer tank passes through pipeline and stage compressor
Connection；Propylene enters one-level cooling driers after the stage compressor and removed water；The one-level cooling driers connect two by pipeline
Level surge tank；The level 2 buffering tank is connected with split-compressor by pipeline, and split-compressor is cold dry by pipeline and two grades
Machine is connected；Propylene is stored in propylene tank after two grades of cooling driers water removal, and the propylene tank is connected with molecular sieve drying
System；The molecular sieve drying system is connected with dry propylene tank.
Preferably, the water washing tank is connected with propylene recovery tank by pipeline.
Preferably, the level 2 buffering tank is connected with stage compressor by pipeline, for cyclic water outlet.
Preferably, two grades of cooling driers are connected by pipeline with condenser, condenser is connected by pipeline with propylene tank.
Preferably, being equipped with magnetic valve on above-mentioned pipeline.
The propylene in propylene feedstocks tank is stored in after washing by first-level buffer tank, the propylene gas band after washing
Go out steam into first-level buffer tank, enter level 2 buffering tank after stage compressor and the water removal of one-level cooling driers；Two grades of control
Propylene water content in surge tank is less than 100ppm；When the propylene water content in level 2 buffering tank is higher than 100ppm, circulation third
Alkene to stage compressor and one-level cooling driers is removed water；When the propylene water content in level 2 buffering tank is less than 100ppm, pass through two
Level compressor and two grades of cooling driers enter the storage of propylene tank after removing water again；Now the propylene water content in propylene tank is less than
20ppm；When needing production to need, the propylene in propylene tank is stored in dry third after molecular sieve drying system further water removal
Alkene tank is used for production and application；And the propylene warp that the propylene reclaimed after production is stored in propylene recovery tank, propylene recovery tank
Crossing after above-mentioned processing to reuse.
The beneficial effects of the invention are as follows：The present invention can effectively remove the moisture in propylene, have by processing in propylene
Water content be less than 3ppm, it is therefore prevented that the corrosion of consersion unit；And the convenient maintenance of the complete equipment, processing propylene effect height.
（Four）Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the invention；
In figure, 1 propylene feedstocks tank, 2 water washing tanks, 3 first-level buffer tanks, 4 stage compressors, 5 one-level cooling driers, 6 level 2 buffering tanks,
7 split-compressors, 8 two grades of cooling driers, 9 propylene tanks, 10 molecular sieve drying systems, 11 dry propylene tanks, 12 propylene recovery tanks, 13 is cold
Condenser.
（Five）Embodiment
Accompanying drawing is a kind of specific embodiment of the invention.The embodiment includes propylene feedstocks tank 1, and propylene feedstocks tank 1 passes through pipeline
It is connected with water washing tank 2；Propylene enters first-level buffer tank 3 after washing by pipeline；The first-level buffer tank 3 by pipeline with
Stage compressor 4 is connected；Propylene is removed water after the stage compressor 4 into one-level cooling driers 5；The one-level cooling driers 5
Level 2 buffering tank 6 is connected by pipeline；The level 2 buffering tank 6 is connected with split-compressor 7, split-compressor 7 by pipeline
It is connected by pipeline with two grades of cooling driers 8；Propylene is stored in propylene tank 9 after two grades of cooling driers 8 water removal, and described third
Alkene tank 9 is connected with molecular sieve drying system 10；The molecular sieve drying system 10 is connected with dry propylene tank 11.The water washing tank 2
It is connected with propylene recovery tank 12 by pipeline.The level 2 buffering tank 6 is connected with stage compressor 4 by pipeline, for circulating
Water outlet.Magnetic valve is equipped with above-mentioned pipeline.Condenser 13 is also equipped between two grades of cooling driers 8 and propylene tank 9.
The propylene in propylene feedstocks tank 1 is stored in after washing by first-level buffer tank 3, the propylene gas after washing
Steam is taken out of into first-level buffer tank 3, enters level 2 buffering tank 6 after stage compressor 4 and one-level cooling driers 5 are removed water；Control
Propylene water content in level 2 buffering tank 6 processed is less than 100ppm；When the propylene water content in level 2 buffering tank 6 is higher than 100ppm
When, circulation propylene to stage compressor 4 and one-level cooling driers 5 is removed water；When the propylene water content in level 2 buffering tank 6 is less than
Enter propylene tank during 100ppm, after removing water again by split-compressor and two grades of cooling driers to store；Now third in propylene tank 9
Alkene water content is less than 20ppm；When needing production to need, the propylene in propylene tank 9 is further by molecular sieve drying system 10
Dry propylene tank 11 is stored in after water removal is used for production and application；And the propylene reclaimed after production is stored in propylene recovery tank 12,
Propylene in propylene recovery tank 12 can be reused after above-mentioned processing.
The present invention is described by way of example above, but the invention is not restricted to above-mentioned specific embodiment, it is all to be based on
Any change or modification that the present invention is done belong to the scope of protection of present invention.
Claims (5)
1. a kind of propylene water scavenging system, including propylene feedstocks tank, it is characterised in that：The propylene feedstocks tank passes through pipeline and washing
Tank is connected；Propylene enters first-level buffer tank after washing by pipeline；The first-level buffer tank passes through pipeline and one stage of compression
Machine is connected；Propylene enters one-level cooling driers after the stage compressor and removed water；The one-level cooling driers are connected by pipeline
Level 2 buffering tank；The level 2 buffering tank is connected with split-compressor by pipeline, and split-compressor is cold by pipeline and two grades
Dry machine connection；Propylene is stored in propylene tank after two grades of cooling driers water removal, and the propylene tank is connected with molecular sieve and done
Drying system；The molecular sieve drying system is connected with dry propylene tank.
2. propylene water scavenging system according to claim 1, it is characterised in that：The water washing tank passes through pipe with propylene recovery tank
Road is connected.
3. propylene water scavenging system according to claim 1, it is characterised in that：The level 2 buffering tank is connected with by pipeline
Stage compressor, for cyclic water outlet.
4. propylene water scavenging system according to claim 1, it is characterised in that：Two grades of cooling driers pass through pipeline and condensation
Device is connected, and condenser is connected by pipeline with propylene tank.
5. the propylene water scavenging system according to claim 1-4, it is characterised in that：Magnetic valve is equipped with the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265250.1A CN107098789A (en) | 2017-04-21 | 2017-04-21 | A kind of propylene water scavenging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265250.1A CN107098789A (en) | 2017-04-21 | 2017-04-21 | A kind of propylene water scavenging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107098789A true CN107098789A (en) | 2017-08-29 |
Family
ID=59657767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265250.1A Pending CN107098789A (en) | 2017-04-21 | 2017-04-21 | A kind of propylene water scavenging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107098789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777485A (en) * | 2020-07-23 | 2020-10-16 | 山东海益化工科技有限公司 | Propylene gas freeze drying process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724155A (en) * | 2013-12-19 | 2014-04-16 | 山东海益化工科技有限公司 | Chloropropene production process |
| CN104860789A (en) * | 2015-05-21 | 2015-08-26 | 山东海益化工科技有限公司 | Method for recovering propylene in preparation process of chloropropene |
| CN104876792A (en) * | 2015-05-21 | 2015-09-02 | 山东海益化工科技有限公司 | Method for producing high-purity chloropropene |
| CN105967973A (en) * | 2016-05-17 | 2016-09-28 | 山东海益化工科技有限公司 | Production process of chloropropene |
-
2017
- 2017-04-21 CN CN201710265250.1A patent/CN107098789A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724155A (en) * | 2013-12-19 | 2014-04-16 | 山东海益化工科技有限公司 | Chloropropene production process |
| CN104860789A (en) * | 2015-05-21 | 2015-08-26 | 山东海益化工科技有限公司 | Method for recovering propylene in preparation process of chloropropene |
| CN104876792A (en) * | 2015-05-21 | 2015-09-02 | 山东海益化工科技有限公司 | Method for producing high-purity chloropropene |
| CN105967973A (en) * | 2016-05-17 | 2016-09-28 | 山东海益化工科技有限公司 | Production process of chloropropene |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777485A (en) * | 2020-07-23 | 2020-10-16 | 山东海益化工科技有限公司 | Propylene gas freeze drying process |
| WO2022016632A1 (en) * | 2020-07-23 | 2022-01-27 | 山东海益化工科技有限公司 | Propylene gas freeze drying process |
| CN111777485B (en) * | 2020-07-23 | 2022-11-11 | 山东海益化工科技有限公司 | Propylene gas freeze drying process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |