CN105521623A - Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device - Google Patents
Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device Download PDFInfo
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- CN105521623A CN105521623A CN201410579275.5A CN201410579275A CN105521623A CN 105521623 A CN105521623 A CN 105521623A CN 201410579275 A CN201410579275 A CN 201410579275A CN 105521623 A CN105521623 A CN 105521623A
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Abstract
The invention discloses an adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device. The device comprises an adsorption tower and a multichannel solenoid valve. Each one of beds of the adsorption tower is connected to the multichannel solenoid valve. The multichannel solenoid valve is provided with an access path and one or more egress paths. The access path is connected to the root part of the bed. Each one of the paths is provided with a valve core for controlling communication or closing of the paths. Through use of the multichannel solenoid valve device for great reduction of an adsorption tower bed pipe volume, pipe volumes of beds are the same and a device treatment capability and a desired product yield are improved. The multichannel solenoid valve replaces a rotary valve in the traditional technology so that the volumes of bed pipes from each one multichannel solenoid valve to the adsorption tower are the same and smallest and adsorption tower load and yield are maximized.
Description
Technical field
The invention belongs to aromatics absorption separation field, relate generally to a kind of moving-bed adsorption separation equipment reducing adsorption tower bed line volume.
Background technology
In prior art, many patent documents all describe and utilize moving-bed adsorption separation method, the blending ingredients of the isomer little from boiling-point difference heteropole or different structure feature, isolate paraxylene, meta-xylene, the moving-bed adsorption separation equipment of n-alkane and method.
Typical moving-bed adsorption bed contains the adsorbent bed of any number, usually 8-24 bed is had, mainly comprise two bursts of chargings and two bursts of dischargings, absorption raw material (F) and strippant (D), Extract (E) and raffinate (R), in addition containing one or more strands of flushing material.The equipment controlling material turnover adsorption tower is rotary valve or a series of switch valve.In moving-bed adsorption separation process, multiply material common transfer pipeline is had to pass in and out adsorption tower, for the adsorbent of the turnover a certain bed position of adsorption tower, can successively by absorption raw material (F), Extract (E), strippant (D) and raffinate (R).In actual motion, the material that in bed pipeline, previous moment is walked with have notable difference now, the material of previous moment remnants can pollute the material flowing through now this pipeline, adverse influence is caused to adsorption separation process, thus can affect to some extent the purity of target product and yield, for eliminating this problem, industrial usually through increasing the mode of rinsing material.But rinse the impact of flow by bed line volume of material, under certain load, bed line volume is larger, for preventing the flushing liquor flow required for four bursts of main material cross pollutions also larger, if but the metering of these flushing liquors is inaccurate or the measuring and calculating of bed line volume is wrong, and the pollution of bed pipeline or adsorption tower bed material can be caused to depart from ideal position.Therefore, reducing bed line volume is reduce bed pipeline to pollute the most basic method.
The intersection back-mixing reducing each stock material in pipeline mainly through the mode increasing flushing liquor is being avoided in prior art or published document, but for reduction bed line volume and special installation aspect research deficiency, fail fundamentally to solve the excessive problem of back-mixing district volume.The method of the producing high pure para-xylene through adsorption separation that such as Chinese patent CN94116990.1 improves, this patented invention discloses a kind of method of moving-bed adsorption separation of produced paraxylene of improvement.In the prior art, the once flushing flow setting value in the method calculates with the longest bed line volume, and flushing flow rate is bigger than normal, limits the lifting of device load, have impact on the yield of paraxylene.The invention eliminates bed line volume, once flushing flow, only for rinsing adsorption tower inner grid and pipeline, reducing adsorption tower maximum region flow, decreasing the pollution to product purity to greatest extent.Compared with the present invention, it still has rotary valve and bed pipeline and also needs to rinse pipeline, does not improve unit capacity to greatest extent.Therefore solution is needed badly.
Summary of the invention
The object of this invention is to provide a kind of equipment reducing adsorption tower bed pipeline back-mixing volume, this equipment can reduce adsorption tower bed pipeline back-mixing volume, improve moving-bed adsorption separate targets product purity yield and adsorption separation efficiency, improve the disposal ability of adsorption separation device or improve the productive rate of target product.
To achieve these goals, the present invention is by the following technical solutions: a kind of moving-bed adsorption separation equipment reducing adsorption tower bed line volume, comprise: adsorption tower and multi-channel electromagnetic valve, every one deck bed of described adsorption tower connects a multi-channel electromagnetic valve, described multi-channel electromagnetic valve has an access passage, more than one picks out passage, the root of access expanding channels bed, and each passage is respectively arranged with the connection or closed of spool control channel.
Described pick out passage connect respectively head tank, strippant tank, extract out flow container, raffinate tank, once flushing liquid enters tank, once flushing liquid goes out tank, secondary flushing liquor enters tank.
Described multi-channel electromagnetic valve directly connects or by the bed of pipeline adsorption tower in succession.
Described multi-channel electromagnetic valve is directly connected with the bed of adsorption tower by flange.
The described connection or closed by conputer controlled picking out passage, it is be communicated with that the same time can only have one to pick out passage.
Described spool adopts 305 stainless steel materials to make.
The present invention is by adopting multi-channel electromagnetic valve directly to connect or by the bed of short pipeline adsorption tower in succession, adsorption tower bed line volume can be greatly reduced, ensure that each bed line volume is equal, device disposal ability and target product yield can be improved, this multi-channel electromagnetic valve instead of the rotary valve in traditional handicraft, and each multi-channel electromagnetic valve can be made minimum and equal to the bed line volume of adsorption tower.
Each stock process stream directly passes in and out each bed of adsorption tower through multi-channel electromagnetic valve, like this, the bed line volume of each bed greatly reduces, and the bed line volume of each bed needs flushing is all identical, and (bed line volume is very little, mainly rinse bed inner grid and distributing pipe), the setting of flushing flow rate (calculates according to actual volume, the flushing flow rate of each bed is all identical) more simple, thus farthest reduce flushing liquor flow, avoid the intersection back-mixing of each stock material.The present invention in implement device adsorbing separation simulation process, can improve target product purity, adsorption tower load and yield, reduces plant energy consumption simultaneously.In 450,000 tons/year of PX devices, relative rotary valve system, can reduce flushing flow rate about 69%, under the prerequisite ensureing equal PX purity, improves disposal ability 2%.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Detailed description of the invention
A kind of moving-bed adsorption separation equipment reducing adsorption tower bed line volume, comprise: adsorption tower and multi-channel electromagnetic valve, the root of every one deck bed of adsorption tower connects a multi-channel electromagnetic valve, and multi-channel electromagnetic valve directly connects or by the bed of short pipeline adsorption tower in succession.Multi-channel electromagnetic valve is directly connected with the bed of adsorption tower by flange.During by short pipeline in succession, pipeline is more short better in engineering design allowed band.
Multi-channel electromagnetic valve has an access passage, and more than one picks out passage, the root of access expanding channels bed, and each passage is respectively arranged with the connection or closed of spool control channel.Multi-channel electromagnetic valve as shown in Figure 1 has 7 and picks out passage, pick out that passage connects head tank, strippant tank respectively, extracts flow container, raffinate tank out, once flushing liquid enters tank, once flushing liquid goes out tank, secondary flushing liquor enters tank, control raw material, strippant, Extract, raffinate respectively, once flushing liquid enters, once flushing liquid goes out, secondary flushing liquor enters inputs or outputs.Pick out the connection or closed by conputer controlled of passage, it is be communicated with that the same time can only have one to pick out passage.Spool adopts 305 stainless steel materials to make.
Multi-channel electromagnetic valve can directly connect or by the bed of pipeline adsorption tower in succession, when connecting bed by pipeline, pipeline one end of different size is connected with the passage of its magnetic valve, the other end is directly connected with adsorption tower, thus instead of rotary valve, make adsorption tower bed line volume on the purity of product and the impact of output very little, and then the treating capacity of lifting device.
Multi-channel electromagnetic valve instead of the rotary valve in traditional handicraft, and each multi-channel electromagnetic valve can be made minimum and equal to the bed line volume of adsorption tower.The present invention can greatly reduce the multi-channel electromagnetic valve device of adsorption tower bed line volume by adopting, ensure that each bed line volume is equal, can improve device disposal ability and target product yield.
Although the present invention with preferred embodiment openly as above; but embodiment and accompanying drawing are not for limiting the present invention, being anyly familiar with this those skilled in the art, without departing from the spirit and scope of the invention; can make various changes or retouch from working as, but same within protection scope of the present invention.What therefore protection scope of the present invention should define with the claims of the application is as the criterion.
Claims (6)
1. one kind is reduced the moving-bed adsorption separation equipment of adsorption tower bed line volume, it is characterized in that comprising: adsorption tower and multi-channel electromagnetic valve, every one deck bed of described adsorption tower connects a multi-channel electromagnetic valve, described multi-channel electromagnetic valve has an access passage, more than one picks out passage, the root of access expanding channels bed, each passage is respectively arranged with the connection or closed of spool control channel.
2. the moving-bed adsorption separation equipment of minimizing adsorption tower bed line volume according to claim 1, is characterized in that: described in pick out passage connect respectively head tank, strippant tank, extract out flow container, raffinate tank, once flushing liquid enters tank, once flushing liquid goes out tank, secondary flushing liquor enters tank.
3. the moving-bed adsorption separation equipment of minimizing adsorption tower bed line volume according to claim 2, is characterized in that: described multi-channel electromagnetic valve directly connects or by the bed of pipeline adsorption tower in succession.
4. the moving-bed adsorption separation equipment of minimizing adsorption tower bed line volume according to claim 3, is characterized in that: described multi-channel electromagnetic valve is directly connected with the bed of adsorption tower by flange.
5. the moving-bed adsorption separation equipment of minimizing adsorption tower bed line volume according to claim 4, is characterized in that: described in pick out the connection or closed by conputer controlled of passage, it is be communicated with that the same time can only have one to pick out passage.
6. the moving-bed adsorption separation equipment of minimizing adsorption tower bed line volume according to claim 5, is characterized in that: described spool adopts 305 stainless steel materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579275.5A CN105521623A (en) | 2014-10-24 | 2014-10-24 | Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410579275.5A CN105521623A (en) | 2014-10-24 | 2014-10-24 | Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device |
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| CN105521623A true CN105521623A (en) | 2016-04-27 |
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| CN201410579275.5A Pending CN105521623A (en) | 2014-10-24 | 2014-10-24 | Adsorption tower bed pipe volume-reduction simulated moving bed adsorption separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546675A (en) * | 2020-12-28 | 2021-03-26 | 大连福佳·大化石油化工有限公司 | Improved steam stripping structure of adsorption tower for leaking agent from bed layer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201491A (en) * | 1962-09-05 | 1965-08-17 | Universal Oil Prod Co | Continuous sorption process with emphasis on product purity |
| US5750820A (en) * | 1995-09-15 | 1998-05-12 | Wei; Chiu N. | Multiple grade flush adsorption separation process |
| CN102895799A (en) * | 2011-07-28 | 2013-01-30 | 中国石油化工股份有限公司 | Simulated moving bed adsorption separation method and device with reduced number of controlling valves |
| CN102895800A (en) * | 2011-07-28 | 2013-01-30 | 中国石油化工股份有限公司 | Simulated moving bed adsorption separation method and device |
| CN106004518A (en) * | 2016-06-22 | 2016-10-12 | 江苏大学 | Electric vehicle energy management prediction control method based on IoV (Internet of Vehicle) |
-
2014
- 2014-10-24 CN CN201410579275.5A patent/CN105521623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3201491A (en) * | 1962-09-05 | 1965-08-17 | Universal Oil Prod Co | Continuous sorption process with emphasis on product purity |
| US5750820A (en) * | 1995-09-15 | 1998-05-12 | Wei; Chiu N. | Multiple grade flush adsorption separation process |
| CN102895799A (en) * | 2011-07-28 | 2013-01-30 | 中国石油化工股份有限公司 | Simulated moving bed adsorption separation method and device with reduced number of controlling valves |
| CN102895800A (en) * | 2011-07-28 | 2013-01-30 | 中国石油化工股份有限公司 | Simulated moving bed adsorption separation method and device |
| CN106004518A (en) * | 2016-06-22 | 2016-10-12 | 江苏大学 | Electric vehicle energy management prediction control method based on IoV (Internet of Vehicle) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546675A (en) * | 2020-12-28 | 2021-03-26 | 大连福佳·大化石油化工有限公司 | Improved steam stripping structure of adsorption tower for leaking agent from bed layer |
| CN112546675B (en) * | 2020-12-28 | 2023-10-13 | 大连福佳·大化石油化工有限公司 | Improved structure of adsorption tower stripping of bed leakage agent |
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Application publication date: 20160427 |