CN204911453U - Metal film reaction piece -rate system in cauldron - Google Patents
Metal film reaction piece -rate system in cauldron Download PDFInfo
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- CN204911453U CN204911453U CN201520666400.6U CN201520666400U CN204911453U CN 204911453 U CN204911453 U CN 204911453U CN 201520666400 U CN201520666400 U CN 201520666400U CN 204911453 U CN204911453 U CN 204911453U
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Abstract
The utility model relates to a metal film reaction piece -rate system in cauldron. Retrieving the jar by metal film reaction separator, catalyst in catalyst batching jar, the cauldron and constituteing, the three passes through the pipeline and links to each other. Metal film reaction separator includes the reation kettle jar body in the cauldron, and a jar body top is equipped with liquid phase feed inlet, catalyst import, gas outlet, and a jar side portion is equipped with the gaseous phase import, the cooling is imported and exported with the coil pipe, and a jar body bottom is equipped with the catalyst export. Be equipped with agitator, gaseous phase coil pipe distributor, cooling coil, metal film separator in the reation kettle, the metal film separator is the membrane stack by many metal film nests of tubes one -tenth, and the membrane stack is equipped with upper and lower head, and is fixed by fixed card. Be applicable to gas among chemical industry, the petrochemical, liquid, solid three -phase catalysis exothermal reaction piece -rate system, the filtrating quality is good, and separation efficiency is high, can realize catalytic reaction disengaging process continuous operation, reaction safety and stability, extension metal film pipe life.
Description
Technical field
The utility model relates to a kind of Reaction Separation system, particularly metal film Reaction Separation system in a kind of reactor being applicable to gas, liquid, solid three-phase catalytic exothermic reaction in chemical industry, petrochemical industry.
Background technology
In chemical industry, technical field of petrochemical industry, gas-liquid-solid three phase catalytic reaction process, comprise catalytic reaction and product and catalyst separation two processes, generally catalytic reaction is carried out in reactor, separation process is carried out outside reactor, need reaction mass to be transported to outside reactor, cause that energy consumption increases, occupation area of equipment is large, invest the problems such as high, material leaks.Or catalytic reaction process and separation process are all carried out in reactor, the employing bag filter that wherein separation process has is separated, due to bag filter durability and antipollution degree poor, life cycle is shorter, general some months just needs to stop to change, have a strong impact on continuous production, cause production cost to increase; Some employing metal films are separated, and often because of the pollution problem of film, cause and frequently wash film or more renew film, and impact is produced and increased production cost.In addition, catalyst is through longtime running, and activity decrease, frequent stopping production changes decaying catalyst, is also comparatively stubborn problem in producing.
Summary of the invention
The purpose of this utility model is to provide metal film Reaction Separation system in a kind of still, to solve the catalysqt deactivation existed in the exothermic reaction of gas, liquid, solid three-phase catalytic, frequent replacing film pipe and metal film pollution problem, realizes producing continuous and steady operation.
The technical scheme in the invention for solving the technical problem is such: metal film Reaction Separation system in a kind of still, be made up of metal film reaction separating device, catalyst dosing tank, catalyst recovery tank in still, catalyst dosing tank is connected with the catalyst inlet of metal film reaction separating device in still by pipeline, and in still, the catalyst outlet of metal film reaction separating device is connected with catalyst recovery tank by pipeline.In still, metal film reaction separating device comprises reactor, reactor tank body top is provided with charging aperture, catalyst inlet, gas vent, metal film separator hoisting port, reactor tank body following side is provided with gas phase import, catalyst outlet is provided with outside reactor tank base, reactor inside bottom is provided with agitator, gas phase coil pipe distributor is provided with above agitator, be connected with the gas phase import outside tank body, gas phase coil pipe distributor has venthole, in reactor tank body, middle part is provided with cooling coil, metal film separator in reactor tank body is fixedly connected with reactor by support, purified liquor outlet and the recoil mouth of metal film separator are located at outside reactor tank base, agitator is provided with in catalyst dosing tank and catalyst recovery tank.
Inwardly be uniformly distributed 1 ~ 4 circle metal film separator successively in the form of a ring along inwall in reactor tank body, the quantity of metal film separator designs according to the unit interval treating capacity of product and the flux of metal film.
The membrane stack that described metal film separator is made up of branched metal film pipe vertical array, often prop up between metal film pipe and leave gap, membrane stack top is provided with membrane stack upper cover, bottom is provided with membrane stack low head, metal film pipe is by fixing card and membrane stack, low head is fixedly connected with, the upper end of metal film pipe is connected with membrane stack upper cover, the lower end of metal film pipe is connected with membrane stack low head, in metal film pipe passage, flowing is clear liquid, what metal film pipe external series gap flowed is dope, often prop up metal film pipe clear liquid and be pooled to membrane stack low head, membrane stack low head is provided with purified liquor outlet and recoil mouth, the purified liquor outlet of all metal film separators extends to reactor outside makes product be collected.
The metal tube of 1 ~ 3, both ends open, parallel arranged identical with metal film pipe length is provided with in metal film separator, metal tube two ends are connected with the upper and lower end socket of metal film separator membrane stack respectively, as the passage of clear liquid, especially when metal film separator recoils, metal film separator can be made evenly to recoil, guarantee repercussion effect.
The utility model is applicable to the exothermic reaction of gas-liquid-solid three-phase, the course of reaction such as to be specially adapted in caprolactam production epoxidation of propylene workshop section in oximes workshop section, production of propylene oxide, Isosorbide-5-Nitrae butanediol to produce in Zhong Que aldehyde reaction workshop section, anthraquinone synthesis hydrogen peroxide hydrogenation workshop section (fluid bed) and catalyst and reactant liquor separation process.
Operation principle of the present utility model is as follows: gas phase enters the gas phase coil pipe distributor in reactor tank body from the gas phase import of reactor following side, and enter in reactor by the venthole on distributor, liquid phase enters reactor by the charging aperture at reactor tank body top, catalyst enters in reactor through delivery pump and pipeline by the catalyst inlet at reactor tank body top after catalyst dosing tank prepares, turn on agitator, gas phase and liquid phase reactor reaction of formation product, product is separated by metal film separator with catalyst, product after separation is delivered to reactor outside by purified liquor outlet and is collected, catalyst is trapped within reactor inside to be continued to participate in catalytic reaction, the heat produced in course of reaction is removed by the cooling coil of reactor inside, simultaneously in course of reaction, unreacted gas phase is overflowed from the gas vent at reactor tank body top, play the effect of stirring slurry and taking away partial reaction heat, in the process of Reaction Separation, timing recoil, during recoil, from recoiling, mouth is reverse enters membrane stack low head to clear liquid, and recoil strength, by the conduction of clear liquid in metal tube, makes clear liquid uniform force in metal film pipe, it is recoiled, to remove the catalyst cake layer on metal film pipe surface, ensure separative efficiency, realization response and the stable operation be separated of metal film separator.Simultaneously, when because of catalysqt deactivation, conversion ratio does not reach production target, catalyst recovery tank is delivered to through pipeline from the agent of the catalyst outlet of reactor tank base continuous extraction partially catalyzed, afterwards, catalyst is added continuously through the catalyst feeds at delivery pump, pipeline, reactor tank body top again from catalyst dosing tank, the catalyst quality of extraction is equal with the catalyst quality added, thus make the catalyst activity of reaction system keep stable, ensure continuous, even running that catalytic reaction is separated.
The beneficial effect that the utility model obtains is:
(1) this system response product clear liquid steady quality is utilized, quality better; (2) by timing, metal film separator is recoiled, remove the cake layer on metal film pipe surface, ensure the separative efficiency of product clear liquid, extend the time between overhauls(TBO); (3) catalyst continuous extraction with add, that guarantees that catalytic reaction is separated carries out continuously; (4) cooling coil and unreacted gas phase take away reaction heat, solve reaction heat and shift out, and guarantee to react safety and stability; (5) metal film pipe long service life, without the need to frequent replacing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of metal film reaction separating device in still.
Fig. 3 is the top view of metal film reaction separating device in still.
Fig. 4 is the longitudinal sectional view of metal film separator.
Fig. 5 is the transverse sectional view of metal film separator.
Fig. 6 is the transverse sectional view of single metal film pipe.
Number in the figure implication is as follows:
Metal film reaction separating device C, catalyst recovery tank in A, catalyst dosing tank B, still
1, reactor tank body 2, reactor upper cover 3, charging aperture 4, catalyst inlet 5, gas vent 6, metal film separator hoisting port 7, cooling coil 8, manhole 9, metal film separator 10, purified liquor outlet 11, recoil mouth 12, metal film separator support 13, agitator installing port 14, agitator 15, catalyst outlet 16, gas phase coil pipe distributor 17, reactor low head 18, gas phase import 19, 20, cooling coil imports and exports 21, upper fixing card 22, membrane stack upper cover 23, membrane stack low head 24, lower fixing card 25, middle fixing card 26, metal tube 27, clear liquid 28, metal film pipe.
Detailed description of the invention
The specific embodiment provided below in conjunction with accompanying drawing and accompanying drawing is further described the utility model.
Embodiment
Produce Isosorbide-5-Nitrae-butynediols for acetylene and formolite reaction and structure of the present utility model and application are described.
As shown in Figure 1, one is applicable to production 1, metal film Reaction Separation system in 4-butynediols still, catalyst dosing tank A is connected with the catalyst inlet 4 of metal film reaction separating device B in still by pipeline, in still, the catalyst outlet 15 of metal film reaction separating device B is connected with catalyst recovery tank C by pipeline, is provided with agitator in catalyst dosing tank A and catalyst recovery tank C.See Fig. 2, in still, metal film reaction separating device B comprises reactor tank body 1, reactor tank 1 is the hollow circular cylinder being provided with upper cover 2, low head 17, and reactor tank body 1 following side is provided with acetylene in gas phase import 18, manhole 8, and middle part is provided with cooling coil pipe and imports and exports 19,20; Upper cover 2 is provided with successively liquid phase formaldehyde charging aperture 3, catalyst inlet 4, gas vent 5, metal film separator hoisting port 6, low head 17 is provided with catalyst outlet 15, bottom side is provided with agitator installing port 13, in reactor, lower curtate is provided with agitator 14, gas phase coil pipe distributor 16 is provided with above agitator 14, distributor is evenly equipped with venthole, and in reactor, middle part is provided with cooling coil 7.See Fig. 3, inwardly 2 circle metal film separators 9 are evenly distributed with in the form of a ring successively along inwall in reactor tank body, metal film separator 9 is fixedly connected with reactor by metal film separator support 12, and Isosorbide-5-Nitrae-butynediols purified liquor outlet 10 and recoil mouth 11 are in reactor low head outside.See Fig. 4, Fig. 5, metal film separator 9 is the membrane stack formed of vertically arranging by the metal film pipe 28 of 16 both ends opens, membrane stack top is provided with membrane stack upper cover 22, bottom is provided with ring membrane stack low head 23, metal film pipe 28 is connected with membrane stack upper cover 22 by upper fixing card 21, be connected with membrane stack low head 23 by lower fixing card 24, gap is left between every root metal film pipe 28, middle fixing card 25 is provided with the impact resistance of reinforcement metal membrane separator 9 in the middle of metal film pipe, be clear liquid side in the pipe of metal film pipe 28, it is dope between film pipe, often prop up metal film pipe clear liquid and be pooled to membrane stack low head 23, membrane stack low head 23 and 1, 4-butynediols purified liquor outlet 10 is connected, 1 of all metal film separators 9, 4-butynediols purified liquor outlet 10 extends to reactor outside makes product collect.Be provided with in each metal film separator 93 with the metal tube 26 of metal film pipe 28 equal length, metal tube 26 both ends open, be communicated with low head on metal film separator membrane stack, as 1, the passage of 4-butynediols clear liquid, especially, when metal film separator 9 recoils, metal film separator 9 can be made evenly to recoil, guarantee repercussion effect.
Its operation principle is as follows: gas phase acetylene enters the gas phase coil pipe distributor 16 in reactor from reactor following side gas phase import 18, enter in reactor by the venthole on distributor, liquid phase formaldehyde enters reactor by the charging aperture 3 on reactor upper cover 2, after catalyst dosing tank A prepares, by delivery pump and pipeline, the catalyst inlet 4 on reactor upper cover 2 enters in reactor catalyst, turn on agitator 14, under catalyst action, gas phase acetylene and liquid phase formaldehyde react generation 1 in the presence of a catalyst, 4-butynediols, product 1, 4-butynediols is separated by metal film separator 9 with catalyst, product 1 after separation, 4-butynediols is by 1, 4-butynediols purified liquor outlet 10 is delivered to reactor outside and is collected, catalyst is trapped within reactor inside to be continued to participate in catalytic reaction, the heat part produced in course of reaction is removed by the cooling coil 7 of reactor inside, simultaneously in course of reaction, unreacted gas phase acetylene is overflowed from the gas vent 5 of reactor upper cover 2, play the effect of stirring slurry and taking away partial reaction heat.In the process of Reaction Separation, timing recoil, during recoil, from recoiling, mouth is reverse enters membrane stack low head to Isosorbide-5-Nitrae-butynediols clear liquid, recoil strength is by the conduction of clear liquid in metal tube, make clear liquid uniform force in metal film pipe, it is recoiled, to remove the catalyst cake layer on metal film pipe 28 surface, ensure separative efficiency, realization response and the stable operation be separated of metal film separator 9.Simultaneously, when because of catalysqt deactivation, conversion ratio does not reach production target, catalyst recovery tank C is delivered to through pipeline from the continuous extraction partially catalyzed agent of the catalyst outlet 15 reactor low head 17, afterwards, the catalyst equal with extraction catalyst quality is added continuously through the catalyst inlet 4 of delivery pump, pipeline, reactor upper cover 2 again from catalyst dosing tank A, make the catalyst activity of reaction system keep stable, ensure continuous, even running that catalytic reaction is separated.
The utility model may be used for reacting to produce cyclohexanone oxime and react with propylene and hydrogen peroxide with cyclohexanone and gas ammonia, hydrogen peroxide producing expoxy propane equally.
Claims (4)
1. metal film Reaction Separation system in a still, comprise metal film reaction separating device B in still, it is characterized in that catalyst dosing tank A is connected with the catalyst inlet of metal film reaction separating device in still by pipeline, in still, the catalyst outlet of metal film reaction separating device is connected with catalyst recovery tank C by pipeline, in still, metal film reaction separating device comprises reactor tank body, reactor tank body top is provided with charging aperture, catalyst inlet, gas vent, metal film separator hoisting port, reactor tank body following side is provided with gas phase import, catalyst outlet is provided with outside reactor tank base, reactor tank body inside bottom is provided with agitator, gas phase coil pipe distributor is provided with above agitator, gas phase coil pipe distributor has venthole, in reactor tank body, middle part is provided with cooling coil, metal film separator in reactor tank body is fixedly connected with reactor by support, purified liquor outlet and the recoil mouth of metal film separator are located at outside reactor tank base.
2. metal film Reaction Separation system in still according to claim 1, is characterized in that inwardly being uniformly distributed 1 ~ 4 circle metal film separator (9) in the form of a ring successively along inwall in reactor tank body.
3. metal film Reaction Separation system in still according to claim 1, it is characterized in that the membrane stack that metal film separator (9) is made up of branched metal film pipe (28) vertical array, often prop up between metal film pipe and leave gap, membrane stack top is provided with membrane stack upper cover, membrane stack low head is provided with bottom membrane stack, metal film pipe is fixedly connected with membrane stack by fixing card, the upper end of metal film pipe is connected with membrane stack upper cover, the lower end of metal film pipe is connected with membrane stack low head, and membrane stack low head is provided with purified liquor outlet and recoil mouth.
4. metal film Reaction Separation system in still according to claim 3, it is characterized in that being provided with in each metal film separator the metal tube of 1 ~ 3, both ends open, parallel arranged identical with metal film pipe length, metal tube two ends are connected with the upper and lower end socket of metal film separator membrane stack respectively.
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| CN201520666400.6U CN204911453U (en) | 2015-08-31 | 2015-08-31 | Metal film reaction piece -rate system in cauldron |
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| CN201520666400.6U CN204911453U (en) | 2015-08-31 | 2015-08-31 | Metal film reaction piece -rate system in cauldron |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230818 Address after: 201899, Room 101, Building 6, No. 2222 Huancheng Road, Juyuan New District, Jiading District, Shanghai JT5049 Patentee after: SHANGHAI XIANYAO INDUSTRIAL CO.,LTD. Address before: No. 1-1201, Aoyi Building, No. 98 Huanghe Avenue, High tech Zone, Shijiazhuang City, Hebei Province, 050035 Patentee before: HEBEI MEIBANG ENGINEERING TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |