CN204816456U - Catalyst filling member - Google Patents
Catalyst filling member Download PDFInfo
- Publication number
- CN204816456U CN204816456U CN201520508723.2U CN201520508723U CN204816456U CN 204816456 U CN204816456 U CN 204816456U CN 201520508723 U CN201520508723 U CN 201520508723U CN 204816456 U CN204816456 U CN 204816456U
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- Prior art keywords
- breather pipe
- catalyst
- calotte
- packing component
- component according
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- 239000003054 catalyst Substances 0.000 title claims abstract description 90
- 230000003252 repetitive effect Effects 0.000 claims abstract description 15
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 31
- 230000003197 catalytic effect Effects 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 21
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 abstract description 10
- 238000006266 etherification reaction Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- -1 carbene hydrocarbon Chemical class 0.000 abstract description 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 18
- 239000012071 phase Substances 0.000 description 10
- 150000001336 alkenes Chemical group 0.000 description 7
- 239000008187 granular material Substances 0.000 description 7
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 7
- 238000004821 distillation Methods 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a catalyst loads component suitable for light petrol etherification catalyst rectification tower, should load the component and arrange in the catalyst rectification tower, including barrel and two at least column plates of setting in the barrel, be equipped with a plurality of column tray holes on the column tray, adjacent column tray constitutes the repetitive unit with the barrel, vertically be equipped with a plurality of breather pipes in the repetitive unit, the top setting of breather pipe is in the below of a column tray, its bottom is connected with another column tray, it forms porcelain ring layer and catalyst layer respectively to add porcelain ring and catalyst in proper order in the repetitive unit, the height that highly is less than the breather pipe on catalyst layer, the top of breather pipe is connected with the breather pipe cap, and the breather pipe top is opened along the junction with the breather pipe cap has a plurality of air vents. The utility model discloses catalyst filling member can improve tert carbene hydrocarbon conversion rate in the light petrol of etherification reaction process, realizes methyl tert butyl ether's effective separation, can effectively reduce the energy consumption.
Description
Technical field
The utility model relates to a kind of Catalyst packing component for catalytic rectifying tower, is specially a kind of Catalyst packing component being applicable to Etherification of Light FCC Gasoline catalytic rectifying tower.
Background technology
The key of catalytic rectification process is structural design and the installation of reacting section catalyst bed.In order to the basic demand of satisfied reaction and rectifying, the type of feed of catalyst in tower must meet the following conditions: 1. make the beds of conversion zone have enough free spaces, provide the flow channel of liquid phase, to carry out liquid phase reactor and vapour-liquid mass.2. there is enough surface areas, carry out catalytic reaction; 3. allow expansion and the contraction of catalyst granules, and do not damage catalyst.
US Patent No. 4471154 proposes catalyst granules to be seated on column plate.The upper lower section silk screen of tower tray separates, then with silk screen, tower tray is divided into several regions, then in the region that these several silk screens separate, loads a certain amount of catalyst.The advantage of this structure is catalyst is fluidized state in silk screen basket, and catalyst surface upgrades very fast, and catalyst utilization is higher, but tower tray pressure drop is comparatively large, and loaded catalyst is also limited.
US Patent No. 4215011 proposes and catalyst granules cloth parcel is rolled into bundle shape.Pocket is seamed into folding cloth, solid catalyst particle is loaded pocket, again pocket is sewed up, finally with another layer of ripple silk net or steel wire, the sack that catalyst is housed is rolled, form cylinder shape catalyst and tie up bag, the space that ripple silk net is created allow gas phase by and with liquid phase contact mass transfer, but catalyst bed layer resistance is larger.
US Patent No. 5454913 proposes catalyst granules to load in downspout.In tower, downspout adopts silk screen class material to make, and downspout directly leads to bottom from conversion zone top, medium design separation tray.At the foot tubing of downspout, numerous downspout is linked up, draw tower by loading hatch.This structure makes catalyst loading and unloading convenient, and the catalyst that bed is transferred is likely crushed.
US Patent No. 5449501 proposes the mentality of designing contrary with US Patent No. 5454913.Change downspout into gas phase channel, catalyst is directly filled up its complementary space of catalytic rectifying tower.The upper bottom surface of beds seals catalyst coated with screen cloth.
The particle with central duct made by catalyst by Chinese patent CN99124796.5, with a kind of connector, catalyst granules connected bunchiness, it put into equably the gas of structured packing, liquid clear passage, forms catalytic distillation structure.This catalytic distillation structure has the advantages that to use all even bed space of catalyst distribution large simultaneously, make the advantages such as catalyst utilization is high, tower pressure drop is less, but loaded catalyst is little, and complex manufacturing.
Chinese patent CN03265855.9 proposes and is loaded in a kind of mesh bag by catalyst granules, and mesh bag is placed in the trough of structured packing.This kind of Catalyst packing component both can realize the use of catalyst particle, catalytic distillation conversion zone bed can also be made to have larger porosity, and make catalyst be evenly distributed in whole bed, simultaneously not high to the requirement of strength of catalyst, but loaded catalyst is less.
What Chinese patent CN200810052268.4 proposed that a kind of catalyst net box makes at silk screen and level bridge is provided with catalyst granules with in the closed net box of anti-overflow baffle plate, Catalyst packing component is that catalyst layer levels is staggered in tower, and the catalyst net box of adjacent layer does not overlap on the same axis.Be characterized in rationally and effectively by catalyst distribution in tower, coordinate the anti-overflow baffle plate above catalyst net box, utilize the gravitional force of liquid itself to make liquid flow uniformly across flowing from top to down at beds, avoid and make catalyst surface upgrade problem slowly because liquid diffuses laterally into catalyst surface; And between catalyst net box, there is certain distance, be namely provided with a large amount of gas phase channels, in gas phase channel, place mass transfer original paper, but there is the shortcoming that catalyst bed layer resistance is large, catalytic rectifying tower treating capacity is little.
Utility model content
The purpose of this utility model, there is provided a kind of filling component of catalytic rectifying tower inner catalyst, this filling component is applicable to the catalytic rectifying tower of Etherification of Light FCC Gasoline methyl tertiary butyl ether(MTBE).Adopt Catalyst packing component described in the utility model, Tertiary olefin conversion ratio in light petrol can be improved, realize effective separation of methyl tertiary butyl ether(MTBE), effectively can reduce energy consumption.
Catalyst packing component described in the utility model, be placed in catalytic rectifying tower, comprise cylindrical shell and be arranged at least two column plates in cylindrical shell, column plate is provided with some column plate holes, adjacent tray and cylindrical shell form repetitive, longitudinally some breather pipes are provided with in repetitive, the top of breather pipe is arranged on the below of a column plate, be connected with another column plate bottom it, porcelain ring is added successively and catalyst forms porcelain circular layer and catalyst layer respectively in repetitive, the height of catalyst layer is lower than the height of breather pipe, the top of breather pipe is connected with breather pipe calotte, and breather pipe top has some passages along the junction with breather pipe calotte.
The top of described breather pipe is zigzag or waveform.
Described passage number is 4 ~ 10, and in course of reaction, from then on gas overflow, and effectively can increase mass-transfer efficiency.
Described breather pipe calotte is umbrella shape, and the diameter of described breather pipe calotte is greater than the diameter of breather pipe, and the surrounding that breather pipe calotte exceeds breather pipe has calotte hole.
Percent opening on described breather pipe calotte is 10% ~ 80%.
Percent opening on described breather pipe calotte is 40% ~ 60%.
The sidewall of described breather pipe has through hole, is conducive to reacting the gas produced and is overflowed by this through hole, increase the mass transfer between gas-liquid two-phase.
Described breather pipe diameter is 0.05 ~ 0.2 of tray diameter.
Described breather pipe is arranged 1 ~ 12 on every layer of column plate.
Described breather pipe is arranged 4 ~ 8 on every layer of column plate.
The advantage of catalytic distillation filling component described in the utility model is:
1, in Catalyst packing component described in the utility model, due to some breather pipes that distributes, the gas upwards flowed can be made to pass beds along gas phase channel, smoothly by contacting with liquid phase above Catalyst packing layer after the passage on breather pipe top; Because breather pipe sidewall has through hole, partial gas phase can directly be contacted with the liquid phase in catalyst layer by through hole, and both actings in conjunction effectively can carry out gas-liquid mass transfer.On the one hand, avoid wearing and tearing that catalyst causes because gas upwards flows with broken, on the other hand, reduce bed pressure drop, strengthen gas-liquid mass transfer ability, effective separation of methyl tertiary butyl ether(MTBE) can be realized, effectively can reduce energy consumption.
2, in the utility model Catalyst packing component, column plate is dispersed with perpendicular breather pipe, same filling component is divided into liquid-solid reaction district and gas-liquid reaction zone by the gas phase channel of breather pipe, the liquid flowed down in the column plate of upper strata is by self gravitation, by the column plate hole on column plate, and can uniformly across beds after gas transfer from bottom to top.Increase the liquid time of staying on a catalyst, facilitate the carrying out of reaction, Tertiary olefin conversion ratio in light petrol can be improved.
3, in the utility model Catalyst packing component, breather pipe calotte is dispersed with the calotte hole that the uniform liquid that upper strata column plate can be made to flow down passes through, calotte hole can effective dispersing liquid, promotes that reaction is carried out, improves the conversion ratio of Tertiary olefin in light petrol.
Accompanying drawing illustrates:
The cross-sectional view of Fig. 1 the utility model repetitive;
The plan structure schematic diagram of Fig. 2 the utility model column plate;
The plan structure schematic diagram of Fig. 3 the utility model Catalyst packing component;
The cross-sectional view of Fig. 4 the utility model breather pipe;
The cross-sectional view of Fig. 5 the utility model filling component;
In figure, 1. cylindrical shell, 2. column plate, 3. porcelain circular layer, 4. catalyst layer, 5. breather pipe, 6. passage, 7. breather pipe calotte, 8. calotte hole, 9. through hole, 10. column plate hole, 11. repetitives.
Detailed description of the invention
By the following examples the utility model is described in further detail, but these embodiments should not thought to restriction of the present utility model.
Below in conjunction with accompanying drawing, the utility model is described in further details.
Embodiment 1
See shown in Fig. 1 to Fig. 5, a kind of Catalyst packing component, be placed in catalytic rectifying tower, comprise cylindrical shell 1 and be arranged at least two column plates 2 in cylindrical shell 1, adjacent tray 2 and cylindrical shell 1 form repetitive 11, longitudinally some breather pipes 5 are provided with in repetitive 11, the top of breather pipe 5 is arranged on the below of a column plate 2, be connected with another column plate 2 bottom it, porcelain ring is added successively and catalyst forms porcelain circular layer 3 and catalyst layer 4 respectively in repetitive 11, the height of catalyst layer 4 is lower than the height of breather pipe 5, the top of breather pipe 5 is connected with breather pipe calotte 7, and breather pipe 5 top has some passages 6 along the junction with breather pipe calotte 7, passage 6 number is 4, 6, 8 or 10, the top of breather pipe 5 is zigzag or waveform, the sidewall of breather pipe 5 has through hole 9.
Described column plate 2 is provided with some column plate holes 10, and in tower, gas phase can be passed through from column plate hole 10.Column plate 2 can be the steel plate with holes of 10% ~ 80% by 20 ~ 150 object stainless steel cloths, percent opening, the carborundum of porous ceramics or porous is made.
Described breather pipe calotte is umbrella shape, the diameter of described breather pipe calotte 7 is greater than the diameter of breather pipe 5, and the surrounding that breather pipe calotte 7 exceeds breather pipe 5 has calotte hole 8, percent opening on breather pipe calotte 7 is 10%, 40%, 60% or 80%, breather pipe 5 diameter is 0.05 ~ 0.2 of column plate 2 diameter, and breather pipe 5 is arranged 1,4,6,8 or 12 on every layer of column plate 2.
Described breather pipe calotte 7 in umbrella shape, and exceeds breather pipe diameter parts and is the outer eaves of circular horizontal and percent opening is 10% ~ 80%; The top seal of breather pipe calotte can effectively prevent overlying catalyst from falling in breather pipe, exceeds breather pipe diameter parts and is the outer eaves of circular horizontal and has perforate, the liquid under the upper stream that can evenly effectively distribute, improve mass-transfer efficiency.
Described catalytic rectifying tower internal diameter is 60mm, the structured packing of the rectifying section filling 300mm of tower, and the structured packing of the stripping section filling 1000mm of tower, structured packing is
ring, loading using macropore polystyrene strong acid positive resin as catalyst for etherification and diameter 2mm, height in reactor is the porcelain ring of 4mm.The parameters of the Catalyst packing component adopted is shown in Table 1.
Table 1
Light petrol raw material enters catalytic rectifying tower charging aperture from rectifying column charging aperture, carries out the reaction of catalytic light gasoline etherificate catalytic distillation.Inlet temperature is 60 DEG C, and operating pressure is 0.2MPaG.C5 Tertiary olefin conversion ratio is 84.18%, C6 Tertiary olefin conversion ratio is 53.90%, and total Tertiary olefin conversion ratio is 73.48%, and the total ether compound content of catalytic rectifying tower tower kettle product is 48.02w%.
Catalyst packing component of the present utility model, repetitive is divided into liquid-solid reaction district and gas-liquid reaction zone by the gas phase channel of breather pipe, the liquid that upper strata tower internals flows down is by self gravitation, by the column plate hole on column plate, with can uniformly across beds after gas transfer from bottom to top, the wearing and tearing that can effectively avoid catalyst to cause because gas upwards flows are with broken, and bed pressure drop is reduced, gas-liquid mass transfer ability is strengthened, simultaneously can effective distributes liquid, promote that reaction is carried out, improve Tertiary olefin conversion ratio in light petrol.This Catalyst packing component, in etherification reaction process, can realize effective separation of methyl tertiary butyl ether(MTBE), effectively can reduce energy consumption.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.
Claims (10)
1. a Catalyst packing component, be placed in catalytic rectifying tower, it is characterized in that, comprise cylindrical shell and be arranged at least two column plates in cylindrical shell, described column plate is provided with some column plate holes, adjacent tray and cylindrical shell form repetitive, longitudinally some breather pipes are provided with in described repetitive, the top of described breather pipe is arranged on the below of a column plate, be connected with another column plate bottom it, porcelain ring is added successively and catalyst forms porcelain circular layer and catalyst layer respectively in repetitive, the height of described catalyst layer is lower than the height of breather pipe, the top of described breather pipe is connected with breather pipe calotte, and breather pipe top has some passages along the junction with breather pipe calotte.
2. Catalyst packing component according to claim 1, is characterized in that, the top of described breather pipe is zigzag or waveform.
3. Catalyst packing component according to claim 1 and 2, is characterized in that, described passage number is 4 ~ 10.
4. Catalyst packing component according to claim 1, is characterized in that, described breather pipe calotte is umbrella shape, and the diameter of described breather pipe calotte is greater than the diameter of breather pipe, and the surrounding that breather pipe calotte exceeds breather pipe has calotte hole.
5. Catalyst packing component according to claim 4, is characterized in that, the percent opening on described breather pipe calotte is 10% ~ 80%.
6. Catalyst packing component according to claim 5, is characterized in that, the percent opening on described breather pipe calotte is 40% ~ 60%.
7. Catalyst packing component according to claim 1, is characterized in that, the sidewall of described breather pipe has through hole.
8. Catalyst packing component according to claim 1, is characterized in that, described breather pipe diameter is 0.05 ~ 0.2 of tray diameter.
9. Catalyst packing component according to claim 1, is characterized in that, described breather pipe is arranged 1 ~ 12 on every layer of column plate.
10. Catalyst packing component according to claim 9, is characterized in that, described breather pipe is arranged 4 ~ 8 on every layer of column plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508723.2U CN204816456U (en) | 2015-07-14 | 2015-07-14 | Catalyst filling member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508723.2U CN204816456U (en) | 2015-07-14 | 2015-07-14 | Catalyst filling member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204816456U true CN204816456U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520508723.2U Active CN204816456U (en) | 2015-07-14 | 2015-07-14 | Catalyst filling member |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496160A (en) * | 2016-10-20 | 2017-03-15 | 安庆市长虹化工有限公司 | A kind of synthesis technique of N methyl nafoxidine |
| CN112334223A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
| CN112973580A (en) * | 2021-02-08 | 2021-06-18 | 湖北昌发容器制造有限公司 | Acid-resistant high-temperature-resistant mercury-free catalyst catalytic vinyl chloride converter |
| CN114713145A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Filling method of graded catalyst |
-
2015
- 2015-07-14 CN CN201520508723.2U patent/CN204816456U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106496160A (en) * | 2016-10-20 | 2017-03-15 | 安庆市长虹化工有限公司 | A kind of synthesis technique of N methyl nafoxidine |
| CN112334223A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
| CN112334223B (en) * | 2018-07-11 | 2022-11-08 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224B (en) * | 2018-07-11 | 2022-11-22 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
| CN114713145A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Filling method of graded catalyst |
| CN112973580A (en) * | 2021-02-08 | 2021-06-18 | 湖北昌发容器制造有限公司 | Acid-resistant high-temperature-resistant mercury-free catalyst catalytic vinyl chloride converter |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |