CN204107486U - A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane - Google Patents
A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane Download PDFInfo
- Publication number
- CN204107486U CN204107486U CN201420598433.7U CN201420598433U CN204107486U CN 204107486 U CN204107486 U CN 204107486U CN 201420598433 U CN201420598433 U CN 201420598433U CN 204107486 U CN204107486 U CN 204107486U
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- Prior art keywords
- reactor
- metal film
- film filter
- separator
- heat exchanger
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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.)
- Expired - Lifetime
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 33
- 239000001294 propane Substances 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims description 17
- 239000000047 product Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 5
- 230000004941 influx Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 2
- 238000005886 esterification reaction Methods 0.000 claims description 2
- 238000006068 polycondensation reaction Methods 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000001282 iso-butane Substances 0.000 description 2
- 235000013847 iso-butane Nutrition 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 241001292396 Cirrhitidae Species 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model relate to a kind of utilize hydrogen peroxide to prepare expoxy propane reaction and separator.Comprise reactor, material distributor, agitator, metal film filter is provided with in reactor, reactor outer wall is provided with chuck or external coiled pipe type heat exchanger, the material outlet of reactor bottom is connected with circulating pump, first-class heat exchanger, reinforced mixing reactor, secondary heat exchanger, static mixer by pipeline successively, and static mixer is connected with recycle stock import by pipeline.Metal film filter is arranged with double-deck or individual layer membrane stack mode in reactor, and every layer has 1 ~ 10 group of membrane stack to be evenly distributed in reactor in same plane, and in metal film filter, the filtering accuracy of metal film is 0.05 ~ 5 μm.The utility model adopts paste state bed reactor, and raw material adds from the reinforced mixing reactor of reactor outside, and hydrogen peroxide conversion ratio is high, improves the efficiency that expoxy propane is selective and react, stable reaction safety.
Description
Technical field
The utility model relates to a kind of chemical reaction equipment, and particularly reaction and the separator of expoxy propane prepared by a kind of hydrogen peroxide, belongs to technical field of chemical engineering.
Background technology
Expoxy propane is the third-largest acryloyl derivative except polypropylene and acrylonitrile, is important basic organic chemical industry synthesis material, mainly for the production of polyethers, propane diols etc., is the third-largest propylene analog derivative that output is only second to polypropylene and acrylonitrile.In prior art, the method preparing expoxy propane mainly contains chlorohydrination, conjugated oxidation and peroxide passivation.Chlorohydrination method is reacted by hypochlorous acid and propylene and is generated chloropropyl alcohol, chloropropyl alcohol and calcium hydroxide emulsion generation saponification thus generate expoxy propane.Conjugated oxidation is also known as Halcon method, comprise iso-butane conjugated oxidation and ethylbenzene conjugated oxidation 2 kinds, carry out cooxidation reaction by iso-butane or ethylbenzene and propylene respectively, generate the tert-butyl alcohol or styrene, the expoxy propane of coproduction simultaneously, but technological process is long, harsh to the requirement of reaction condition and equipment, while construction capital is high, only have the coproduction product that a kind of output is less, and sewage is also higher containing COD, disposal cost accounts for 10% of gross investment.Hydrogen peroxide oxidation method is a kind of novel propylene oxide production process, only generates expoxy propane and water in this art production process, and technological process is simple, and product yield is high, does not have other joint product, substantially pollution-free, belongs to eco-friendly clean-production system.
The equipment of traditional mode of production expoxy propane is fixed bed reactors, be also called packed bed reactor, by catalyst TS-1 uniform particles is deposited in reactor beds, form one deck catalytic bed, bed maintains static, after material enters reactor, under the catalysis of catalyst being deposited in reactor inner surface, carry out reaction and generate expoxy propane.Although fixed bed reactors are simple to operate, catalyst is not easy to wear, but due to beds transfixion, also there will be some defects accordingly, as reaction temperature is wayward, especially for exothermic reaction, often there is the existence of " focus " and " temperature runaway ", the while of hurtful to equipment, cause reaction not carry out smoothly, also have the time of contact of material and catalyst and area little, the low conversion rate of hydrogen peroxide, simultaneously the granularity of catalyst and regeneration issues, equally restrict the use of fixed bed reactors.For this reason, existing production of propylene oxide device is improved, there is positive effect.
Summary of the invention
The reaction that the purpose of this utility model is to provide a kind of hydrogen peroxide to prepare expoxy propane and separator, be applicable to the improving technique that peroxide passivation prepares expoxy propane.
The technical scheme in the invention for solving the technical problem is such.A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane, comprise reactor, agitator is provided with in reactor, reactor internal upper part is provided with material distributor, in reactor, bottom is provided with metal film filter, metal film filter is arranged in same plane in membrane stack mode, reactor following side is provided with product expoxy propane purified liquor outlet, expoxy propane purified liquor outlet is connected with metal film filter, Polycondensation Reactor and Esterification Reactor end is provided with recycle stock outlet, reactor top is provided with material inlet, catalyst inlet, reactor outer wall is provided with chuck or coil exchanger, the material outlet of reactor bottom connects circulating pump successively by pipeline, first-class heat exchanger, reinforced mixing reactor, secondary heat exchanger, static mixer, static mixer is connected by the material inlet of pipeline with reactor top.
The use of the secondary heat exchanger above reinforced mixing reactor can avoid reaction to produce temperature runaway, makes course of reaction stability and safety.
In the utility model, reactor adopts slurry reactor still.
In the utility model, agitator adopts variable frequency regulating speed control rotating speed, and the range of speeds is 0 ~ 150rpm, preferred 130 rpm.
In the utility model, material distributor adopts circle shaped tube type, and circulating line has distribution hole.
Metal film filter in reactor can divide two-layer or mono-layer fashion layout, every layer has 1 ~ 10 group of membrane stack to be evenly distributed in same plane, membrane stack is supported fixing by the gripper shoe fixing with reactor inwall, each membrane stack is made up of several metal films, the per-meate side of each metal film forms clear liquid pipeline by pipe influx together, clear liquid pipeline is connected with the product expoxy propane purified liquor outlet of reactor lower wall, and metal film filter filtering accuracy is 0.05 ~ 5 μm.
Reinforced mixing reactor is provided with three charge doors, and be respectively used to add propylene, hydrogen peroxide and methyl alcohol, the charge door that raw material is corresponding is optional, also can transformation feeding mouth mutually.
The beneficial effect that the utility model obtains is: adopt paste state bed reactor, and greatly, fully, hydrogen peroxide conversion ratio is high, the selective height of expoxy propane in contact for catalyst and contact raw area.Adopt external charging hybrid reaction, raw material adds from the reinforced mixing reactor of reactor outside, makes it just mix before entering reactor, shortens the incorporation time of raw material in reactor, adds the reaction time of raw material, improve the efficiency of reaction.Adopt circular response device and catalyst regularly to add, avoid the periodic replacement of catalyst, improve the utilization rate of catalyst, thus improve production efficiency.Heat exchanger on chuck on reactor outer wall or external coiled pipe type heat exchanger and reactor external pipe achieves the recycling of reaction heat, controls the temperature of reaction, makes stable reaction safety, avoid " temperature runaway " infringement to reactor simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that in reactor, metal film filter stacks top view.
Number in the figure implication is as follows:
1, reactor 2, chuck or coil exchanger 3, metal film filter 4, product purified liquor outlet 5, agitator 6, recycle stock outlet 7, circulating pump 8, heat exchanger 9, reinforced mixing reactor 10,11,12, charge door 13, secondary heat exchanger 14, static mixer 15, recycle stock import 16, material distributor 17, catalyst inlet.
Detailed description of the invention
The specific embodiment provided below in conjunction with accompanying drawing and accompanying drawing is further described the utility model.
As shown in Figure 1, a kind of hydrogen peroxide prepares reaction and the separator of expoxy propane, comprise reactor 1, reactor 1 adopts paste state bed reactor, reactor 1 outer wall is provided with coil exchanger 2, is provided with agitator 5 in reactor 1, and agitator adopts variable frequency regulating speed control rotating speed, the range of speeds is 0 ~ 150rpm, and general rotating speed controls at about 130 rpm.Reactor 1 internal upper part is fixed with circle shaped tube type material distributor 16 by support, and material distributor circulating line has distribution hole, and vertical feed pipe lower end communicates with the material distributor circulating line of level.In reactor 1, bottom is provided with metal film filter 3, metal film filter 3 is two-layer layout, every one deck to be evenly distributed in still in same plane by 4 groups of membrane stacks, metal film filter membrane stack is supported fixing by the gripper shoe fixing with reactor inwall, each membrane stack is made up of several metal films, the per-meate side of each metal film forms clear liquid pipeline by pipe influx together, and clear liquid pipeline communicates with the product purified liquor outlet 4 of reactor 1 lower wall (see figure 2).Metal film filter 3 filtering accuracy is 0.05 ~ 5 μm, and general filtering accuracy is 3 μm can meet technique needs.Recycle stock outlet 6 is provided with bottom reactor, reactor top is provided with recycle stock import 15, catalyst inlet 17, the material outlet 6 of reactor 1 bottom connects circulating pump 7, first-class heat exchanger 8, reinforced mixing reactor 9, secondary heat exchanger 13, static mixer 14 successively by pipeline, and static mixer 14 is connected by the recycle stock import 15 of pipeline with reactor 1 top.Reinforced mixing reactor top is provided with secondary heat exchanger, and the use of secondary heat exchanger can avoid reaction to produce temperature runaway, makes course of reaction stability and safety.Reinforced mixing reactor 9 is provided with 3 charge doors 10,11 and 12, and add propylene, hydrogen peroxide and methyl alcohol respectively, according to technological design, three charge doors and three kinds of raw materials can exchange.
In the utility model, circulating pump 7, heat exchanger 8 and 13, static mixer 14, metal film filter 3 etc. can be buied from market, are known features.
Operation principle of the present utility model is such: in reactor 1, add catalyst TS-1 molecular sieve, hydrogen peroxide, propylene and methyl alcohol, set up circulation, the pressure controlled in reactor 1 is 0.3 ~ 2.0Mpa, temperature is 40 ~ 60 DEG C, turn on agitator 5 and circulating pump 7, the rotating speed controlling agitator 5 is 0 ~ 150rpm, catalyst TS-1 molecular sieve is regularly added in reactor 1, propylene is added continuously in reinforced mixing reactor 9, hydrogen peroxide and methyl alcohol, in reinforced mixing reactor 9, hydrogen peroxide and propylene react under solvent methanol and catalyst exist, the first half in reactor 1, reaction terminates, obtain target product expoxy propane, wherein the conversion ratio of hydrogen peroxide is >=96%, expoxy propane selective >=95%.Lower Half in reactor 1, under pressure, mixture after filtration precision is the metal film filter separation of 0.05 ~ 5 μm, the expoxy propane clear liquid oozed out oozes out by exporting 4, catalyst is trapped within reactor 1, enter in reinforced mixing reactor 9 via the recycle stock outlet 6 bottom reactor 1, circulating pump 7, first-class heat exchanger 8, mix with the propylene, hydrogen peroxide and the methyl alcohol that add continuously in reinforced mixing reactor 9, turn back in reactor 1 by secondary heat exchanger 13, static mixer 14 and pipeline and realize circular response and carry out continuously with being separated.
Claims (4)
1. reaction and the separator of expoxy propane prepared by a hydrogen peroxide, comprise reactor (1), reactor (1) outer wall is provided with chuck or coil exchanger (2), agitator (5) is provided with in reactor (1), reactor (1) internal upper part is fixed with material distributor (16) by support, it is characterized in that: reactor (1) interior bottom is provided with metal film filter (3), metal film filter (3) is evenly distributed in same plane in membrane stack mode, metal film filter membrane stack is supported fixing by the gripper shoe fixing with reactor inwall, reactor (1) following side is provided with product purified liquor outlet (4), product purified liquor outlet (4) is communicated with metal film filter (3), Polycondensation Reactor and Esterification Reactor end is provided with recycle stock outlet (6), reactor top is provided with recycle stock import (15), catalyst inlet (17), the material outlet (6) of reactor (1) bottom connects circulating pump (7) successively by pipeline, first-class heat exchanger (8), reinforced mixing reactor (9), secondary heat exchanger (13), static mixer (14), static mixer (14) is connected with the recycle stock import (15) at reactor (1) top by pipeline, reinforced mixing reactor (9) is provided with charge door (10), and (12) (11).
2. reaction according to claim 1 and separator, is characterized in that agitator (5) is for variable frequency regulating speed control rotating speed, the range of speeds 0 ~ 150rpm.
3. reaction according to claim 1 and separator, is characterized in that material distributor (16) is circle shaped tube type, circulating line has distribution hole.
4. reaction according to claim 1 and separator, it is characterized in that the metal film filter (3) in reactor (1) is two-layer or mono-layer fashion layout, every layer has 1 ~ 10 group of membrane stack to be evenly distributed in same plane, each membrane stack is made up of several metal films, and the per-meate side of each metal film forms clear liquid pipeline by pipe influx together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598433.7U CN204107486U (en) | 2014-10-16 | 2014-10-16 | A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598433.7U CN204107486U (en) | 2014-10-16 | 2014-10-16 | A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204107486U true CN204107486U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420598433.7U Expired - Lifetime CN204107486U (en) | 2014-10-16 | 2014-10-16 | A kind of hydrogen peroxide prepares reaction and the separator of expoxy propane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204107486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033107A (en) * | 2017-04-20 | 2017-08-11 | 河北美邦工程科技股份有限公司 | A kind of method for preparing epoxychloropropane |
| CN113828255A (en) * | 2021-10-22 | 2021-12-24 | 上海华谊（集团）公司 | Gas-liquid-solid three-phase catalytic oxidation reaction kettle and application thereof |
-
2014
- 2014-10-16 CN CN201420598433.7U patent/CN204107486U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033107A (en) * | 2017-04-20 | 2017-08-11 | 河北美邦工程科技股份有限公司 | A kind of method for preparing epoxychloropropane |
| CN113828255A (en) * | 2021-10-22 | 2021-12-24 | 上海华谊（集团）公司 | Gas-liquid-solid three-phase catalytic oxidation reaction kettle and application thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 12, building 050035, Yee Yee building, 98 the Yellow River Avenue, Hebei, Shijiazhuang Patentee after: HEBEI MEIBANG ENGINEERING TECHNOLOGY CO.,LTD. Address before: 050035 Shijiazhuang, Shijiazhuang, Changjiang Road, building No. 9, high-tech international A-17L Patentee before: HEBEI MBET ENGINEERING TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20150121 |