CN202052525U - Hydrogenation reactor for gas-liquid-solid three-phase fixed bed - Google Patents
Hydrogenation reactor for gas-liquid-solid three-phase fixed bed Download PDFInfo
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- CN202052525U CN202052525U CN2011201276059U CN201120127605U CN202052525U CN 202052525 U CN202052525 U CN 202052525U CN 2011201276059 U CN2011201276059 U CN 2011201276059U CN 201120127605 U CN201120127605 U CN 201120127605U CN 202052525 U CN202052525 U CN 202052525U
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Abstract
The utility model discloses a hydrogenation reactor for a gas-liquid-solid three-phase fixed bed, which is high in capacity and production efficiency and less in equipment investment cost, solves the problem of heat and mass transfer and has an optimized structure. The hydrogenation reactor for the gas-liquid-solid three-phase fixed bed comprises a body container, a feeding port, a discharging port, a feeding pre-distributor, an upper seal head and a lower seal head, wherein the feeding pre-distributor is an arranged pipe type pre-distributor and mounted on the lower portion of the reactor, the upper seal head and the lower seal head are elliptical, and the feeding pre-distributor is changed from an original shower head type into an array pipe type, so that distribution is more even, mass transfer effect is better, and accordingly the size of the reactor can be enlarged.
Description
Technical field
The utility model relates to a kind of reactor, more specifically to a kind of gas-liquid-solid three-phase fixed-bed hydrogenation reactor, belongs to the chemical industry equipment field.
Background technology
At present, during chemical products were produced, fixed bed hydrogenation reactor generally all adopted the structure of awl end flat-top all steel, and distributor adopts common sprinkle nozzle distributor.For example p phenylenediamine type antioxidant 4020 and 4010NA be as the good versatility age resistor of best performance in the amines antioxidants, also is at present and in a very long time in the future, the main flow kind of international and domestic production automobile radial and the oblique tire of engineering.The diameter of the hydrogenation reactor that uses in the existing manufacturing technique is Φ 700, it also is the structure that adopts awl end flat-top all steel, distributor adopts common shower nozzle, reaction system efficient is low, energy consumption is high, product yield is low, investment is high, and its production capacity of such reactor every year is only about 2500 tons.In addition, former reactor size is little, the restriction of aspects such as production capacity is low, the production capacity of single covering device can not satisfy far away along with the fast development of China's automobile and tire industry to the demand that rubber chemicals market increases, also more and more can not satisfy the requirement that production is maximized to device.In sum, traditional age resistor 4020 and 4010NA hydrogenation reactor are little owing to being subjected to reactor size, the restriction that production capacity is low, and increasing output just must be by increasing reactor apparatus quantity, not only will increase investment, energy consumption, the maintenance cost of device greatly, production efficiency is reduced.Therefore need to develop a kind of fixed bed hydrogenation reactor capacious to be used for the large-scale production of Related products such as age resistor 4020 and 4010NA.
Summary of the invention
The utility model has solved above-mentioned problems of the prior art and deficiency, a kind of gas-liquid-solid three-phase fixed-bed hydrogenation reactor is provided, this fixed bed hydrogenation reactor not only capacity is big, also solved heat and moisture transfer problems, the production efficiency height has also been optimized structure simultaneously, has been reduced the cost of equipment investment.
The technical solution of the utility model is achieved as follows:
Gas-liquid-solid three-phase fixed-bed hydrogenation reactor of the present utility model, include main body container, charging aperture, discharging opening, the charging pre-distributor, upper cover and low head, wherein said charging pre-distributor is the calandria pre-distributor, be installed in reactor lower part, described upper cover is an ellipsoidal head, low head is an ellipsoidal head, the charging pre-distributor changes calandria into by former sprinkle nozzle, make distribution more even, mass transfer effect is better, thereby can strengthen the size of reactor, the upper cover ellipsoidal head has changed former upper cover bipyramid face apparatus for sealing flange and flat cover form, and the original structure form is the forging material, big and the poor sealing of the many sizes of materials, the dismounting flat cover is difficult for; The low head ellipsoidal head, the stressed bad local stress of end socket is bigger when having solved old-fashioned reactor low head and being conical head, the problem that the housing calculated wall thickness is bigger.
Gas-liquid-solid three-phase fixed-bed hydrogenation reactor of the present utility model, the catalyst layer bottom is provided with manhole on its described main body container, thus it is convenient that catalyst is changed.
Gas-liquid-solid three-phase fixed-bed hydrogenation reactor of the present utility model, the nozzle of its described calandria pre-distributor can make the material distribution more even down.
Reactor body of the present utility model in addition stainless steel clad plate instead of pure 316L corrosion resistant plate, cost is lower.
Compared with prior art the utlity model has following beneficial effect:
The charging pre-distributor changes calandria into by former sprinkle nozzle in the gas-liquid-solid three-phase fixed-bed hydrogenation reactor of the present utility model, makes distribution more even, and mass transfer effect is better, thereby can strengthen the size of reactor, and reactor diameter can reach more than the 1200MM; The upper cover ellipsoidal head has changed former upper cover bipyramid face apparatus for sealing flange and flat cover form, the few little and good airproof performance of size of materials, dismounting easily; The low head ellipsoidal head, end socket is stressed, and evenly local stress is less, and the housing calculated wall thickness is also less, and cost is low.The catalyst layer bottom is provided with manhole on main body container in addition, thereby it is convenient that catalyst is changed.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Part description among the figure: 1-drain, 2-low head, 3-charging pre-distributor, 4-manhole, 5-undersetting, 6-main body container (cylindrical shell), 7-temperature-measuring port, 8-catalyst, 9-upper bracket, 10-upper cover, 11-catalyst dress mouth, 12-discharging opening
The specific embodiment
As shown in Figure 1, it is cylindrical shell that gas-liquid-solid three-phase fixed-bed hydrogenation reactor of the present utility model includes main body container, discharging opening, drain, the charging pre-distributor, upper cover, low head, upper bracket, undersetting and temperature-measuring port, main body container is a cylinder, height 14.6m, diameter is 1200mm, wherein said charging pre-distributor is the calandria pre-distributor, be installed in reactor lower part and enclosed by the porcelain bag, the nozzle of described calandria pre-distributor down, described upper cover is an ellipsoidal head, low head is an ellipsoidal head, the catalyst layer bottom is provided with manhole on the main body container, thereby it is convenient that catalyst is changed, and reactor body stainless steel clad plate, this reactor are used for its annual production of production of 4020 and can reach more than 7500 tons.
During 4020 productions, raw material 4 aminodiphenylamines, hydrogen and methyl iso-butyl ketone (MIBK) are introduced into the static mixer preheating, and after the part material vaporization, above material enters reactor together by the calandria pre-distributor.Liquid material is full of reactor, and hydrogen is bubbling in liquid material, and progressively and raw material reaction, reacted material is by discharge hole for discharge, and reaction conversion ratio can reach more than 95%.
Claims (3)
1. gas-liquid-solid three-phase fixed-bed hydrogenation reactor, include main body container, discharging opening, drain, charging pre-distributor, upper cover, low head, upper bracket, undersetting and temperature-measuring port, it is characterized in that described charging pre-distributor is the calandria pre-distributor, the calandria pre-distributor is installed in the main body container bottom, described upper cover is an ellipsoidal head, and low head is an ellipsoidal head.
2. gas-liquid-solid three-phase fixed-bed hydrogenation reactor according to claim 1 is characterized in that the catalyst layer bottom is provided with manhole on the described main body container.
3. gas-liquid-solid three-phase fixed-bed hydrogenation reactor according to claim 1, the nozzle that it is characterized in that described calandria pre-distributor down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201276059U CN202052525U (en) | 2011-04-27 | 2011-04-27 | Hydrogenation reactor for gas-liquid-solid three-phase fixed bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201276059U CN202052525U (en) | 2011-04-27 | 2011-04-27 | Hydrogenation reactor for gas-liquid-solid three-phase fixed bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052525U true CN202052525U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201276059U Expired - Fee Related CN202052525U (en) | 2011-04-27 | 2011-04-27 | Hydrogenation reactor for gas-liquid-solid three-phase fixed bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN202052525U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395672A (en) * | 2018-12-06 | 2019-03-01 | 浙江工业大学 | A kind of fixed bed reactors for production of sugar polyol |
| CN109704975A (en) * | 2019-02-27 | 2019-05-03 | 青岛科技大学 | A kind of catalytic hydrogenation method preparing arylamine kind antioxidant |
| CN112546968A (en) * | 2020-12-02 | 2021-03-26 | 中国科学院广州能源研究所 | Three-phase reactor and method applied to hydrodeoxygenation refining of biological aviation oil |
-
2011
- 2011-04-27 CN CN2011201276059U patent/CN202052525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395672A (en) * | 2018-12-06 | 2019-03-01 | 浙江工业大学 | A kind of fixed bed reactors for production of sugar polyol |
| CN109704975A (en) * | 2019-02-27 | 2019-05-03 | 青岛科技大学 | A kind of catalytic hydrogenation method preparing arylamine kind antioxidant |
| CN112546968A (en) * | 2020-12-02 | 2021-03-26 | 中国科学院广州能源研究所 | Three-phase reactor and method applied to hydrodeoxygenation refining of biological aviation oil |
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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: 20111130 Termination date: 20160427 |