CN200995074Y - Rectifying filler structure - Google Patents
Rectifying filler structure Download PDFInfo
- Publication number
- CN200995074Y CN200995074Y CN 200720103306 CN200720103306U CN200995074Y CN 200995074 Y CN200995074 Y CN 200995074Y CN 200720103306 CN200720103306 CN 200720103306 CN 200720103306 U CN200720103306 U CN 200720103306U CN 200995074 Y CN200995074 Y CN 200995074Y
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- fractional distillation
- filling
- packing
- distillation
- distillation filling
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Abstract
The utility model relates to a distillation feeding structure, which comprises two or more than two distillation packing layers (1). The utility model is characterized in that the two or more than two distillation packing layers (1) comprises a bale packings (2), the bale packings (2) are of parallel distribution and cuboid shaped and are formed in a reticular bag composed of catalyzer and adsorbent granules arranged on the wall of the layers, and a structured packing (4) composed of two vertical metal corrugated sheets (3) between the neighboring bale packings (2), The bale packings (2) between the neighboring two or more than two distillation packing layers (1) are vertical mutually distributed, and the two vertical metal corrugated sheets (3) between the neighboring two or more than two distillation packing layers (1) are vertical mutually distributed.
Description
Technical field
The utility model belongs to chemical industry distillation technology field, and particularly catalytic distillation (or absorption distillation) tower internal procedure is strengthened.
Background technology
The type of feed of catalyst (or adsorbent) member is one of key technology of catalytic distillation and absorption distillation.
U.S. Pat P 4,443,559 disclose a kind of catalyst filling structure that is used for catalytic distillation, and it places granular catalyst the middle catalyst bale packing that forms of packing material (as the braid of polyester, nylon yarn etc., the silk screen of materials such as aluminium, stainless steel etc.) of band mesh.This catalyst bale packing is rolled to link to each other with elastic component again and is formed the wider catalyst structure of application with rectifying and catalysis complex function.The shortcoming of this filling structure is that vapor liquid maldistribution is even in the tower, influences the coupling of rectifying and reaction, and significant enlarge-effect is arranged.
Application number is that 92222666.0 and 92103803.8 Chinese patent discloses a kind of catalyst filling structure that is used for catalytic distillation, be the structure that is become with catalyst combination by the corrugated shell, the corrugated shell is to make the corrugated face with porous or netted inert material; Narrow side; Bottom surface and last end face constitute, in the corrugated shell catalyst is housed, be combined into the high-efficient packing for catalytic rectification element, be seated in by the high-efficient packing for catalytic rectification of a plurality of thickness homogeneous and form the high-efficient packing for catalytic rectification layer in the tower, should arranged vertical with the packing component on one deck, make the ripple incline direction on adjacent two packing components opposite again, between the corrugated face, form a series of cross one another triangle runners, the direction of ripple and tower is angle of inclination beta from axle on the while packing component, close efficient catalytic rectifying layer in composition dish external diameter and the tower, the orientation of the corrugated surface of element constitutes 90 ° in the adjacent two layers.In use, catalyst granules is put into the interlayer of wavy metal silk screen and dull and stereotyped silk screen or the interlayer of two ripple silk nets, form the catalyst structure of a sealing.Though this type of feed has been utilized the separating power of structured packing, shortcoming is to make complexity, rectification zone and reaction zone proportion to be difficult for regulating.
Two kinds of above-mentioned types of feed all are not suitable for absorption distillation.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of catalyst (or adsorbent) bale packing to make, and rectification zone and reaction (absorption) district proportion is easily transferred, and both has been applicable to catalytic distillation, can be used for the fractional distillation filling-material structure of absorption distillation again.
The utility model comprises a plurality of fractional distillation filling-material layers 1, it is characterized in that: fractional distillation filling-material layer 1 comprise placement parallel to each other, place wall to be the bale packing that is cuboid 2 that bag constituted of mesh-like by catalyst or absorbent particles, between adjacent bale packing 2, by the structured packing 4 that wavy metal sheet 3 perpendicular to each other is formed, the bale packing permutation inter of adjacent fractional distillation filling-material layer 1 is perpendicular.
Two adjacent fractional distillation filling-material layers are connected to form a unit, can a plurality of unit of stacked placement in the rectifying column.
The material of silk screen can be polyester, nylon, aluminium or stainless steel etc.
Bale packing 2 interior zones are reaction zone (or adsorption zone), and the zone of the structured packing of being made up of wavy metal sheet 44 is a rectification zone.
Because the bag binding mechanism surface smoothing of cuboid, relative ripple struction wants much simple when making, thereby realizes easily.Another advantage of cuboid bale packing is the easier control of volume, and when adjusting rectification zone and reaction (absorption) district ratio, it is more convenient to operate, and precision is also higher.
Fractional distillation filling-material structure described in the utility model also can be applicable to absorption distillation except that can be used for catalytic distillation, be 92222666.0 and 92103803.8 Chinese patent with respect to application number, and the range of application of structure obtains enlarging.
Description of drawings
Accompanying drawing 1, the vertical view of fractional distillation filling-material layer 1;
Accompanying drawing 2, the side sectional view of fractional distillation filling-material layer 1;
Accompanying drawing 3, the vertical view of upper strata fractional distillation filling-material layer 1;
Accompanying drawing 4, the vertical view of lower floor's fractional distillation filling-material layer 1;
The specific embodiment
The given specific embodiment is a preferred embodiment of the present utility model, but should be not limited to given embodiment in actual applications.
With the accessory substance mixed c 4 that removes the preparing ethylene by steam cracking process behind the butadiene is raw material, and it is example that isobutene direct hydration catalytic distillation is produced the tert-butyl alcohol.Fractional distillation filling-material layer 1 comprises the catalyst bale packing 2 that is cuboid that bag placement parallel to each other, that place the woven wire material to make by catalyst granules constitutes, the structured packing of forming between adjacent bale packing 2, by wavy metal sheet 3 perpendicular to each other 4.Used catalyst is that granularity is the strong-acid ion exchange resin of 0.3～1.2mm.The woven wire material also can be replaced by the web material that polyester or nylon are made.In carbon four, isobutene content is 25.52wt%, adds surfactant in the water, and addition is 0.1wt%.
Catalytic rectifying tower is formed (from top to bottom) by three sections: rectifying section (0.6m), conversion zone (1.0m), stripping section (0.6m).The fractional distillation filling-material structure that filling the present invention proposes in the conversion zone, six fractional distillation filling-material layers 1 have been used altogether, per from top to bottom two adjacent fractional distillation filling-material layers 1 constitute a filler unit (having three unit), and the bundle of two adjacent fractional distillation filling-material layers 1 is embraced 90 ° of right angles of the perpendicular one-tenth of 2 permutation inter up and down; Wavy metal sheet 3 directions are also orthogonal.Water is added by the conversion zone top, and the C 4 mixture that contains isobutene is added by the conversion zone bottom.Operating pressure is 0.7MPa, and reflux ratio is between the 1.0-3.0.Tower top temperature 50-60 ℃, 130-150 ℃ of tower still temperature, conversion for isobutene is greater than 10%.
The experimental result explanation, the fractional distillation filling-material structure that the utility model proposes can be used for the catalytic distillation process intensification.
Mixture with separating alcohol and water is an example.The content of ethanol is 58.72wt% in the mixture, and the content of water is 41.28wt%, is added by the tower still.The fractional distillation filling-material structure that filling the present invention proposes in the adsorptive rectification tower, packing layer is made of a plurality of fractional distillation filling-material layers 1 proposed by the invention, height 2.2m.Wherein, fractional distillation filling-material layer 1 comprise placement parallel to each other, be the adsorbent bale packing 2 that is cuboid that bag that the 3 sieve particles of 4～6mm place the woven wire material to make constitutes by granularity, the structured packing of between adjacent bale packing 2, by wavy metal sheet 3 perpendicular to each other, forming 4.The woven wire material also can be replaced by the web material that polyester or nylon are made.
Operating pressure is a normal pressure, and reflux ratio is between the 1.0-3.0.80～85 ℃ of tower top temperatures, 80～90 ℃ of tower still temperature, the content of cat head ethanol is 96.36wt%, the content of water is 3.64wt%.
The experimental result explanation, the fractional distillation filling-material structure that the utility model proposes also can be used for the absorption distillation process intensification.
In the foregoing description 1 and embodiment 2, owing to use the bale packing 2 that is cuboid, make simplified control, improved bale packing efficient; When adjusting rectification zone and reaction (absorption) district ratio, directly adjust the width of cuboid bale packing 2 and can realize, use the bale packing of ripple struction relatively in the prior art, simple to operate, volume is easy to control, can improve control accuracy.
Claims (2)
1. fractional distillation filling-material structure, comprise two or more fractional distillation filling-material layers (1), it is characterized in that: fractional distillation filling-material layer (1) comprise placement parallel to each other, place wall to be the bale packing that is cuboid (2) that bag constituted of mesh-like by catalyst or absorbent particles, structured packing (4) between adjacent bale packing (2), that form by wavy metal sheet perpendicular to each other (3), the permutation inter of the bale packing (2) between adjacent fractional distillation filling-material layer (1) is perpendicular, and the permutation inter of the wavy metal sheet (3) between adjacent fractional distillation filling-material layer (1) is perpendicular.
2. fractional distillation filling-material structure according to claim 1 is characterized in that: two are faced fractional distillation filling-material layer (1) mutually and connect into a unit, and the rectifying column inner stacks is placed two or more unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720103306 CN200995074Y (en) | 2007-01-23 | 2007-01-23 | Rectifying filler structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720103306 CN200995074Y (en) | 2007-01-23 | 2007-01-23 | Rectifying filler structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200995074Y true CN200995074Y (en) | 2007-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720103306 Expired - Lifetime CN200995074Y (en) | 2007-01-23 | 2007-01-23 | Rectifying filler structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200995074Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100528336C (en) * | 2007-01-23 | 2009-08-19 | 北京化工大学 | Fractional distillation filling-material structure |
| CN111659149A (en) * | 2020-06-16 | 2020-09-15 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
-
2007
- 2007-01-23 CN CN 200720103306 patent/CN200995074Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100528336C (en) * | 2007-01-23 | 2009-08-19 | 北京化工大学 | Fractional distillation filling-material structure |
| CN111659149A (en) * | 2020-06-16 | 2020-09-15 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
| CN111659149B (en) * | 2020-06-16 | 2021-10-08 | 上海化工研究院有限公司 | Rectifying tower, rectifying system and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070123 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |