CN208031945U - A kind of catalytic distillation module applied to etherification reaction - Google Patents
A kind of catalytic distillation module applied to etherification reaction Download PDFInfo
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- CN208031945U CN208031945U CN201721238424.7U CN201721238424U CN208031945U CN 208031945 U CN208031945 U CN 208031945U CN 201721238424 U CN201721238424 U CN 201721238424U CN 208031945 U CN208031945 U CN 208031945U
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- stainless steel
- catalytic distillation
- cylinder
- module
- catalyst
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Abstract
The utility model provides a kind of catalytic distillation module applied to etherification reaction, it has stainless steel wave card unit box, stainless steel catalyst container and stainless steel structured packing are intertwined and are filled in unit box, stainless steel random packing is loaded except stainless steel catalyst container and stainless steel structured packing between unit chamber interior wall, the stainless steel structured packing is Pall ring, the stainless steel catalyst container is the cylinder with size with stainless steel structured packing, cylinder cylinder is uniformly provided with several open-works, in cylinder and its cylinder port is lined with stainless steel cloth, catalyst granules is loaded in stainless steel cloth space.The technical program has that circulation is big, pressure drop is small, has enough gas liquid interfacial areas, mass transfer characteristic excellent, and catalysis reaction transformation efficiency is high, product purity is high, simple installation in tower, the technological merit for being easy to technical scaleization application.
Description
Technical field
The utility model relates to catalytic rectifying towers, more particularly to the catalytic distillation being filled in catalytic rectifying tower
Module.
Background technology
Catalytic rectification process is a kind of chemical catalysis reaction technology developed in recent years in the application of engineering, principle
It is that Catalyst packing component is filled in a knockout tower, is a catalysis reaction and that separation function has both is novel compound anti-
Answer tower apparatus.Detached job in tower enhances chemical reaction, and reversible balanced reaction is made to become like single reaction.Therefore it urges
Changing distillation technology has that reaction mass high conversion rate, good product selectivity, product purity are high, low energy consumption, easy to operate, small investment
The advantages that.Catalytic rectification process succeeds in the commercial Application of methyl tertiary butyl ether(MTBE), also other field of chemical preparation by
It is gradually promoted, applies.
The key of catalytic rectification process is the composition of catalytic distillation component in catalytic rectifying tower.Occur being permitted in the prior art
The achievement in research of multipair catalytic distillation component.Scheme is disclosed in United States Patent (USP) US4443559：By catalyst granules loading glass
In the tiny pocket of glass fiber sewing, support is covered with the stainless steel cloth for having certain opening space, then be rolled into stainless with one layer
The bundle type cylinder of steel wire and one layer of tiny pocket equipped with catalyst constitutes catalytic distillation component.The advantages of this component
It is：Catalyst distribution is uniform, and gas-liquid-solid contacts, and is applied in the industrial production of the catalytic distillation of synthesis MTBE.But
The applicable elements of the technical solution are limited to the relatively general low small packed tower of voidage, and entire catalytic rectifying tower design structure
More complicated, technical matters requires the handling of high and filler pretty troublesome, and there are larger gaps between cylinder after installation, hence it is evident that
Gas-liquid distribution is affected, thus reduces the technique effect of catalytic distillation.
Chinese patent CN1042664A proposes catalytic rectifying tower conversion zone being divided into several catalyst beds, each bed
Direct loading catalyst, separation tray is arranged in space between two beds, also gives over to gas phase channel, and the gas of uplink is made to pass through bed
And separation tray.Though there is this catalytic distillation component catalyst loading and unloading convenient, reaction mass and catalyst can be in direct contact, can
The technological merit of the influence of diffusion couple reaction rate is reduced, but the structure is more suitable for loading large granular catalyst, and due to its knot
Structure makes gas-liquid two-phase be each passed through respective channel in conversion zone, is not susceptible to mass transfer between gas-liquid two-phase, therefore it is equal not to be suitable for air-liquid
Be reaction mass gas-liquid-solid reaction system in.
Invention content
The goal of the invention of the utility model is to provide a kind of new application in the catalytic distillation module of etherification reaction, this mould
Block can be such that catalyst is uniformly distributed in entire conversion zone, moreover it is possible to so that reaction bed is had sufficient voidage, meet gas-liquid
Needed for two-phase contact area, be conducive to reaction medium in gas phase and shifted into liquid phase, while also there is very strong separating capacity, promotees
Make reaction balance to generating product direction to move, also have handling flexibly, conveniently, catalyst abrasion is small, technology of effect stabilization
Advantage.
Catalytic distillation building block technique scheme provided by the utility model applied to etherification reaction, main technical content
It is：A kind of catalytic distillation module applied to etherification reaction has stainless steel wave card unit box, stainless steel catalyst container
It is intertwined and is filled in unit box with stainless steel structured packing, stainless steel catalyst container and stainless steel structured packing
Except between unit chamber interior wall load stainless steel random packing, the stainless steel structured packing be Pall ring, it is described not
Rust steel catalyst container is the cylinder with stainless steel structured packing with size, and cylinder cylinder is uniformly provided with several open-works, cylinder
Interior and its cylinder port is lined with stainless steel cloth, and catalyst granules is loaded in stainless steel cloth space.
In above-mentioned overall technical architecture, by area accounting, the percent opening of the stainless steel wave card unit box
For 30-40%.
In the above technical solution, the loadings of catalyst granules account for module total volume in each catalytic distillation module
5%-50%；Under conditions of reaching same technique effect, it is 10%-20% most preferably to fill out magnitude, not only has excellent skill
Art effect, and with the technological merit for saving catalyst amount.
In the above technical solution, stainless steel random packing is stainless steel ring.
A kind of catalytic distillation building block technique scheme applied to etherification reaction disclosed by the utility model is filled in catalysis essence
Tower is evaporated, it is more in line with fluid distrbution and mechanical characteristic in tower, has that circulation is big, pressure drop is small, has enough gas-liquid contacts
Area is conducive to gas phase reaction medium to this transfer of liquid, there is good liquid to collect excellent with gas separation effect, mass transfer characteristic
Technological merit good, that catalysis reaction transformation efficiency is high, product purity is high；Due to reaction efficiency height, it is easier to determine that catalyst is used
Amount controls the effective amount of fill of catalyst.The technical program also has that modular structure is simple, is not easy to leak, simple installation in tower,
It is easy to technical scale application.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is that the utility model is applied to the industrial technological process dress of the etherificate such as tertiary amylene in isobutene or light petrol
Figure is set, catalytic distillation tower therein can be whole tower, and inside includes rectifying section, the conversion zone at middle part and the stripping of lower part on top
Section, but actual column height degree is limited by factory, using the upper tower, conversion zone and stripping section one of rectifying section as shown in the figure
The lower tower of body.
Specific implementation mode
The catalytic distillation module applied to etherification reaction of the utility model, as shown in the picture, composition includes：Stainless steel
Corrugated plating unit box 1 is four square box, and wave crest and trough position are uniformly provided with babinet open-work, are not embodied in figure.In tower,
Wave crest, the trough of the adjacent boxes kiss that is staggered connect filling.
Stainless steel catalyst container 2 and stainless steel structured packing 3, which are intertwined, to be filled in unit box 1, attached
The wherein one filling layer arrangement architecture that figure provides.Preferably, the staggered structure further includes each interlayer
Staggered arrangement, i.e., the stainless steel catalyst container 2 between layers loaded in unit box 1 and stainless steel structured packing
3 also staggered arrangements.
Stainless steel is loaded between unit chamber interior wall dissipate heap except stainless steel catalyst container 2 and stainless steel structured packing 3
Filler 4, the stainless steel random packing 4 are stainless steel ring.
The stainless steel structured packing 3 is Pall ring.
The stainless steel catalyst container 2 is the cylinder with size with stainless steel structured packing 3, on cylinder cylinder uniformly
Several open-works are offered, the pore size of these open-works is preferably 3mm.It is urged not less than stainless steel in the aperture of the babinet open-work
The cylinder open-work of agent container 2 is not more than 4.5mm, and based on area accounting, the stainless steel wave card unit box 1
Percent opening is 30-40%.In the cylinder of stainless steel catalyst container 2 and its cylinder port is lined with stainless steel cloth, the stainless steel
Silk screen is double-layer structure, and inner layer net is close close higher than outer layer net, in the present embodiment, internal layer be aperture 0.122-0.125mm not
Become rusty steel wire, and outer layer is the stainless steel cloth of 0.18-0.2mm.Catalyst granules is loaded in stainless steel cloth space.Design makes every
One catalytic distillation mould catalyst granules loadings in the block account for the 5%-50% of module total volume, and most preferably value is 10%-20%.
Embodiment 1
By the catalytic distillation module application, in carbon four prepared by isobutene catalytic distillation methyl tertbutyl, catalysis
Actual diameter 700mm, the high 8000mm of rectifying column, a length of 400mm of unit box, width 400mm, the height of this catalytic distillation module
For 100mm, wherein the catalyst loaded is the II type spherical resin catalyst of D005- of Dandong Mingzhu Special Type Resin Co., Ltd..
Comparative example 1
By 4443559 preparation method of above-mentioned United States Patent (USP), identical catalyst is packed into the tiny pocket of glass fibre sewing
It is interior, support is covered with the stainless steel cloth for having certain opening space, then be involved in stainless steel cloth, is catalyzed in bundle type cylinder
Rectifying component.It is filled in the rectifying section of diameter 100mm, the lab scale tower that filling height is 1000mm.
Embodiment 1 and comparative example 1 are under identical experiment condition, obtained comparative experimental data such as the following table 1：
Table 1
Embodiment 2
The experiment of tertiary amylene catalytic distillation methyl tert-amyl of this catalytic distillation module application in light dydrocarbon.Catalytic distillation
The actual diameter of tower is 700mm, a height of 8000mm, a length of 400mm of unit box, width 400mm, the height of this catalytic distillation module
For 100mm, the catalyst of filling uses the II s type spherical resin catalyst of D005- of Dandong Mingzhu Special Type Resin Co., Ltd..
Comparative example 2
By 4443559 preparation method of above-mentioned United States Patent (USP), identical catalyst is packed into the tiny pocket of glass fibre sewing
It is interior, support is covered with the stainless steel cloth for having certain opening space, then be involved in stainless steel cloth, is catalyzed in bundle type cylinder
Rectifying component.It is filled in the rectifying section of diameter 100mm, the lab scale tower that filling height is 1000mm.
Embodiment 2 and comparative example 2 are under identical experiment condition, obtained comparative experimental data such as the following table 2：
Table 2
Embodiment 3
This catalytic distillation module application is in the catalytic distillation small test of Etherification of Light FCC Gasoline.The actual diameter of catalytic rectifying tower
For 700mm, a height of 8000mm, a length of 400mm of unit box, width 400mm, a height of 100mm of this catalytic distillation module are loaded
Catalyst use Dandong Mingzhu Special Type Resin Co., Ltd. II s type spherical resin catalyst of D005-.
Comparative example 3
By 4443559 preparation method of above-mentioned United States Patent (USP), identical catalyst is packed into the tiny pocket of glass fibre sewing
It is interior, support is covered with the stainless steel cloth for having certain opening space, then be involved in stainless steel cloth, is catalyzed in bundle type cylinder
Rectifying component.It is filled in the rectifying section of diameter 100mm, the lab scale tower that filling height is 1000mm.
Embodiment 3 and comparative example 3 are under identical experiment condition, obtained comparative experimental data such as the following table 3：
Table 3
| Title | Embodiment 3 | Comparative example 3 |
| Light dydrocarbon tertiary amylene conversion ratio, % can be etherified | 90.12 | 87.43 |
| Six tertiary hexene conversion ratio of carbon, % can be etherified | 40.08 | 33.55 |
Embodiment 4
For this catalytic distillation module application in the complete industrial production of Etherification of Light FCC Gasoline, technological process is as shown in Figure 2：Light vapour
1. 2. oil is measured respectively by metering pump P101, methanol by metering pump P102 is pumped to static mixer M101, by preheating after mixing
Device E101 is heated to 45 DEG C, 3. preheating material is pumped into methyltertiarvbutyl ether reactor R101 and carries out etherification reaction.Methyltertiarvbutyl ether reactor is fixed bed
Reactor, wherein being used as catalysts equipped with macropore sulfuric acid resin.Iso-amylene and dissident's alkene carry out ether with methanol in light petrol
Change reaction, 4. the material after reaction enters the conversion zone bottom of the lower tower D101-1 of catalytic rectifying tower, 9. supplement methanol enters urges
In the middle part of the conversion zone for changing the lower tower D101-1 of rectifying column, depth etherificate and product separation are carried out.Wherein upper tower D101-2 loads θ nets
The conversion zone of ring filler or tower tray, lower tower D101-1 loads the catalytic distillation module of this filling catalyst, and θ nets are loaded in stripping section
Ring filler or tower tray.In catalytic rectifying tower, unreacted light dydrocarbon and methanol azeotrope enter catalytic distillation tower conversion zone, are urging
Change the liquid phase material to flow downward in distillation column reactor Duan Yuta and carry out Mass and heat transfer, and is etherified under the effect of the catalyst
Reaction, makes isobutene obtain deep conversion.Unreacted light dydrocarbon and residual methanol enter catalytic distillation tower top by the top of tower and condense
Tower top on catalytic rectifying tower is sent into device E103, condensate liquid E103 output part reflux, and another part is discharged into collecting tank, bottom of tower
5. material is connected to storage tank as reaction product.
In the technological process, catalytic rectifying tower uses the catalytic distillation module of the application, is applied to Etherification of Light FCC Gasoline
Production, wherein the total conversion that can be etherified light dydrocarbon can reach 96.5% or more, the conversion ratio that can be etherified carbon six can reach 57% or more,
Illustrate that the technique effect of the catalytic distillation module of the utility model is not only verified in lab scale, in actual industrial production application
In its technique effect it is more notable.
Claims (7)
1. a kind of catalytic distillation module applied to etherification reaction has stainless steel wave card unit box, it is characterised in that no
Rust steel catalyst container and stainless steel structured packing be intertwined and be filled in unit box, stainless steel catalyst container and
Stainless steel random packing is loaded except stainless steel structured packing between unit chamber interior wall, the stainless steel structured packing is Bao
That ring, the stainless steel catalyst container is that the cylinder with size, cylinder cylinder are uniformly provided with stainless steel structured packing
Several open-works, cylinder is interior and its cylinder port is lined with stainless steel cloth, and catalyst granules is loaded in stainless steel cloth space.
2. the catalytic distillation module according to claim 1 applied to etherification reaction, it is characterised in that stainless steel dissipates landfill
Material is stainless steel ring.
3. the catalytic distillation module according to claim 1 or 2 applied to etherification reaction, it is characterised in that press area accounting
Meter, the stainless steel wave card unit box（1）Percent opening be 30-40%.
4. the catalytic distillation module according to claim 1 or 2 applied to etherification reaction, it is characterised in that each catalysis essence
The loadings for evaporating catalyst granules in module account for the 5%-50% of module total volume.
5. the catalytic distillation module according to claim 3 applied to etherification reaction, it is characterised in that each catalytic distillation
The loadings of catalyst granules account for the 5%-50% of module total volume in module.
6. the catalytic distillation module according to claim 4 applied to etherification reaction, it is characterised in that each catalytic distillation
The loadings of catalyst granules account for the 10%-20% of module total volume in module.
7. the catalytic distillation module according to claim 5 applied to etherification reaction, it is characterised in that each catalytic distillation
The loadings of catalyst granules account for the 10%-20% of module total volume in module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721238424.7U CN208031945U (en) | 2017-09-26 | 2017-09-26 | A kind of catalytic distillation module applied to etherification reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721238424.7U CN208031945U (en) | 2017-09-26 | 2017-09-26 | A kind of catalytic distillation module applied to etherification reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208031945U true CN208031945U (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721238424.7U Withdrawn - After Issue CN208031945U (en) | 2017-09-26 | 2017-09-26 | A kind of catalytic distillation module applied to etherification reaction |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107519657A (en) * | 2017-09-26 | 2017-12-29 | 丹东明珠特种树脂有限公司 | A kind of catalytic distillation module applied to etherification reaction |
-
2017
- 2017-09-26 CN CN201721238424.7U patent/CN208031945U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107519657A (en) * | 2017-09-26 | 2017-12-29 | 丹东明珠特种树脂有限公司 | A kind of catalytic distillation module applied to etherification reaction |
| CN107519657B (en) * | 2017-09-26 | 2022-11-29 | 丹东明珠特种树脂有限公司 | Catalytic rectification module applied to etherification reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181102 Effective date of abandoning: 20221129 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181102 Effective date of abandoning: 20221129 |