CN202315861U - Isopropylbenzene continuous oxidation system with external heat transfer - Google Patents
Isopropylbenzene continuous oxidation system with external heat transfer Download PDFInfo
- Publication number
- CN202315861U CN202315861U CN2011204378872U CN201120437887U CN202315861U CN 202315861 U CN202315861 U CN 202315861U CN 2011204378872 U CN2011204378872 U CN 2011204378872U CN 201120437887 U CN201120437887 U CN 201120437887U CN 202315861 U CN202315861 U CN 202315861U
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- CN
- China
- Prior art keywords
- circulating pump
- oxidation
- isopropylbenzene
- heat transfer
- circulation cooler
- Prior art date
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses an isopropylbenzene continuous oxidation system with an external heat transfer function, which comprises an oxidation tower, an oxidation external circulation cooler and a circulating pump, wherein the oxidation tower is connected with the oxidation external circulation cooler and the circulating pump; and the oxidation external circulation cooler is connected with the circulating pump. The isopropylbenzene continuous oxidation system with the external heat transfer function has the beneficial effects that: 1, the heat transfer efficiency is high; 2, the productivity of the system can be changed through adjusting cooling water amount of the cooler; 3, the whole reaction temperature is effective reduced; 4, the controllability of the reaction temperature is better, and the adjusting efficiency is high; and 5, the reaction materials are in a flow state, the distribution is uniform, and the temperature deviation is small.
Description
Technical field
The utility model relates to a kind of oxidative system, specifically the continuous oxidative system of isopropylbenzene.
Background technology
Existing cumene oxidation system adopts the method for tower inner coil pipe heating and cooling to carry out oxidation reaction.Weak point has: 1. adopt the tower inner coil pipe to move heat, heat exchange area is little, and efficient is poor; 2. the flowability of material is poor, causes local temperature deviation easily; 3. reaction temperature is higher, exists security risk bigger; 4. the controllability of reaction temperature is relatively poor.
The utility model content
The purpose of the utility model is the deficiency that exists to prior art, provides that a kind of heat exchange area is big, efficient is high, temperature is even, the continuous oxidative system of hot isopropylbenzene is moved in outside safe, that controllability is good.
For realizing above-mentioned utility model purpose, the technical scheme that the utility model adopts is the continuous oxidative system of isopropylbenzene that heat is moved in a kind of outside, comprises oxidizing tower, oxidation outer circulation cooler, circulating pump; Said oxidizing tower joins with oxidation outer circulation cooler and circulating pump, and said oxidation outer circulation cooler and circulating pump join.
Said oxidizing tower is provided with three material inlets, a bottom discharge mouth, and said oxidation outer circulation cooler and three material inlets all join, and said circulating pump and bottom discharge mouth join.
Said circulating pump is two of parallel connection.
Said outlet of circulating pump is provided with the teletransmission thermometer.
Beneficial effect: 1. move thermal efficiency height; 2. can change system's production capacity through regulating the cooler cooling water inflow; 3. the W-response temperature is effectively descended; 4. the controllability of reaction temperature is better, regulates the efficient height; 5. make reaction mass be in flow regime, be evenly distributed, temperature deviation is little.
Description of drawings
Fig. 1 is the utility model structural representation.1. oxidizing tower, 2. oxidation outer circulation cooler, 3. circulating pump, 4. material inlet, 5. bottom discharge mouth, 6. teletransmission thermometer; 7. safety valve 8. inlet valves, 9. butterfly valve, 10. check-valves, 11. stop valves, 12. feed pipes; 13. discharge pipe, 14. gate valves, 15. air ducts, 16. exhaust pipes, 17. discharge conduits; 18. bypass duct, TI-teletransmission thermometer, TG-scene temperature meter, PI-teletransmission Pressure gauge, the on-the-spot Pressure gauge of PG-; LI-teletransmission liquid level gauge, the on-the-spot liquid level gauge of LG-, FI-remote control liquid flowmeter, HV-control valve, XV-stop valve.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the utility model, present embodiment is being to implement under the prerequisite with the utility model technical scheme, should understand these embodiment only be used to the utility model is described and be not used in the restriction the utility model scope.
As shown in Figure 1, the continuous oxidative system of hot isopropylbenzene is moved in a kind of outside, mainly comprises oxidizing tower 1, oxidation outer circulation cooler 2, circulating pump 3.Feed pipe 12 connects oxidizing tower 1; Air duct 15 is connected with oxidizing tower 1; Exhaust pipe 16 is connected with oxidizing tower 1; Be provided with air sparger, material distributor, chilled water distributor in the oxidizing tower 1; Be provided with multipoint temperature monitor, liquid level gauge, Pressure gauge; Be provided with the material inlet 4 of three differing heights, air intlet, bottom discharge mouth 5, two drains; Bottom discharge mouth 5 is connected with circulating pump 3, is provided with teletransmission thermometer 6 in the exit position of circulating pump 3.
Circulating pump 3 outlets connect discharge pipe 13, bypass duct 18 and oxidation outer circulation cooler 2; The outlet of oxidation outer circulation cooler 2 is connected with three charging apertures 4 of oxidizing tower 1 respectively.Oxidation outer circulation cooler 2, shell are provided with refrigerant system and heating agent system.Wherein the medium of refrigerant system is a water, and the medium of heating agent system is a steam.
Operation principle: be delivered to oxidizing tower inside to the isopropylbenzene raw material, mix with air, under certain temperature, pressure, reaction generates hydrogen phosphide cumene and tail gas.Mixed material in the oxidizing tower, part are through circulating pump and oxidation outer circulation cooler, and passing ratio is regulated, and are back to after the cooling to continue reaction in the oxidizing tower; The direct discharging of a part of in addition material.
The course of work: isopropylbenzene and air mix in oxidizing tower 1, and under 85～105 ℃ of temperature, pressure 0.27～0.3Mpa, reaction generates hydrogen phosphide cumene.Material is got by circulating pump in the oxidizing tower, and a part is a product, and a part refluxes.The material passing ratio that refluxes is regulated, and a part gets into oxidation outer circulation cooler 2, and through cooling, temperature is reduced to below 70 ℃, mixes with another part again, makes mixed temperature of charge be lower than temperature in the oxidizing tower, is back in the oxidizing tower at last.
Claims (4)
1. the hot continuous oxidative system of isopropylbenzene is moved in an outside, it is characterized in that: comprise oxidizing tower (1), oxidation outer circulation cooler (2), circulating pump (3); Said oxidizing tower (1) joins with oxidation outer circulation cooler (2) and circulating pump (3), and said oxidation outer circulation cooler (2) and circulating pump (3) join.
2. move the continuous oxidative system of isopropylbenzene of heat according to the said a kind of outside of claim 1; It is characterized in that: said oxidizing tower (1) is provided with three material inlets (4), a bottom discharge mouth (5); Said oxidation outer circulation cooler (2) all joins with three material inlets (4), and said circulating pump (3) joins with bottom discharge mouth (5).
3. move the continuous oxidative system of isopropylbenzene of heat according to the said a kind of outside of claim 1, it is characterized in that: said circulating pump (3) is two of parallel connection.
4. move the hot continuous oxidative system of isopropylbenzene according to claim 1 or 3 said a kind of outsides, it is characterized in that: the outlet of said circulating pump (3) is provided with teletransmission thermometer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378872U CN202315861U (en) | 2011-11-08 | 2011-11-08 | Isopropylbenzene continuous oxidation system with external heat transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378872U CN202315861U (en) | 2011-11-08 | 2011-11-08 | Isopropylbenzene continuous oxidation system with external heat transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315861U true CN202315861U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204378872U Expired - Fee Related CN202315861U (en) | 2011-11-08 | 2011-11-08 | Isopropylbenzene continuous oxidation system with external heat transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315861U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402843A (en) * | 2014-12-01 | 2015-03-11 | 中石化上海工程有限公司 | Method for reducing energy consumption of oxidation unit of epoxy propane device |
| CN104447629A (en) * | 2014-12-01 | 2015-03-25 | 中石化上海工程有限公司 | Method for by-producing steam from oxidation unit of epoxypropane device |
| CN104478775A (en) * | 2014-12-01 | 2015-04-01 | 中石化上海工程有限公司 | Method for reducing energy consumption of oxidizing reaction unit of phenol-acetone device |
-
2011
- 2011-11-08 CN CN2011204378872U patent/CN202315861U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402843A (en) * | 2014-12-01 | 2015-03-11 | 中石化上海工程有限公司 | Method for reducing energy consumption of oxidation unit of epoxy propane device |
| CN104447629A (en) * | 2014-12-01 | 2015-03-25 | 中石化上海工程有限公司 | Method for by-producing steam from oxidation unit of epoxypropane device |
| CN104478775A (en) * | 2014-12-01 | 2015-04-01 | 中石化上海工程有限公司 | Method for reducing energy consumption of oxidizing reaction unit of phenol-acetone device |
| CN104402843B (en) * | 2014-12-01 | 2016-09-07 | 中石化上海工程有限公司 | The method reducing propylene oxide unit oxidation unit energy consumption |
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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 |
Granted publication date: 20120711 Termination date: 20201108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |