CN205760498U - Separating methanol after-treatment system - Google Patents
Separating methanol after-treatment system Download PDFInfo
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- CN205760498U CN205760498U CN201620661478.3U CN201620661478U CN205760498U CN 205760498 U CN205760498 U CN 205760498U CN 201620661478 U CN201620661478 U CN 201620661478U CN 205760498 U CN205760498 U CN 205760498U
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- periodic
- gases
- cleaning mixture
- scrubbing tower
- desalted water
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Abstract
This utility model provides a kind of separating methanol after-treatment system, including periodic off-gases scrubbing tower (1) and flash steam scrubbing tower (2)；Also drawing periodic off-gases cleaning mixture conveying arm (4) from described periodic off-gases cleaning mixture conveyance conduit (3), the port of export of described periodic off-gases cleaning mixture conveying arm (4) is connected to the described desalted water pipeline near entrance point；It is also equipped with periodic off-gases cleaning mixture at described periodic off-gases cleaning mixture conveying arm (4) and controls valve (7).Have the advantage that periodic off-gases cleaning mixture is drawn a pipeline to after flashed vapour desalination water valve by (1) in Liquid level adjusting valve position, as flashed vapour cleaning mixture, take full advantage of methanol and can be dissolved in the principle of water, reduce crude carbinol concentration, the target of steam saving, improves the quality of methanol simultaneously.(2) can realize desalted water and periodic off-gases cleaning mixture mutually switches into the effect of flashed vapour scrubbing tower, flexible and convenient to use.
Description
Technical field
This utility model belongs to chemical technology field, is specifically related to a kind of separating methanol after-treatment system.
Background technology
In methanol synthesizing process, from the isolated methanol liquid of methanol separator, often contain a large amount of dissolved gas,
This is partly dissolved gas and can flash off from methanol with the reduction of methanol pressure, obtains flash steam, and, flash steam can carry
There is part methanol.
In traditional handicraft, for reducing the loss of methanol, flash steam is sent in flash steam scrubbing tower, uses desalted water to dodge
Methanol washing and recycling in steam is returned, and obtains containing methanol cleaning mixture, then is sent in crude carbinol rectifier unit.
The subject matter that above-mentioned technique exists is: during simple employing desalted water washing flash steam, methanol concentration in cleaning mixture
Relatively low, water content is higher, adds the steam consumption of crude carbinol rectifier unit.
Utility model content
The defect existed for prior art, this utility model provides a kind of separating methanol after-treatment system, can efficient solution
Certainly the problems referred to above.
The technical solution adopted in the utility model is as follows:
This utility model provides a kind of separating methanol after-treatment system, washs including periodic off-gases scrubbing tower (1) and flash steam
Tower (2)；
Wherein, described periodic off-gases scrubbing tower (1) is configured with periodic off-gases cleaning mixture outlet (1.1), described periodic off-gases cleaning mixture
Outlet (1.1) is communicated to the entrance of rectifier unit by periodic off-gases cleaning mixture conveyance conduit (3)；
Described flash steam scrubbing tower (2) is configured with the 1st desalted water import (2.1), and described 1st desalted water import (2.1) is even
It is connected with desalted water inlet pipeline (5), described desalted water inlet pipeline (5), desalination water control valve (6) is installed；Described desalination
Water control valve (6) is referred to as the desalination near entrance point to the desalted water inlet pipeline between described 1st desalted water import (2.1)
Waterpipe；
It addition, also draw a periodic off-gases cleaning mixture conveying arm from described periodic off-gases cleaning mixture conveyance conduit (3)
(4), the port of export of described periodic off-gases cleaning mixture conveying arm (4) is connected to the described desalted water pipeline near entrance point；Institute
State periodic off-gases cleaning mixture conveying arm (4) and be also equipped with periodic off-gases cleaning mixture control valve (7).
Preferably, the middle part sidewall of described periodic off-gases scrubbing tower (1) is configured with periodic off-gases import (1.2)；Described periodic off-gases
The top of scrubbing tower (1) is configured with periodic off-gases outlet (1.3), and the described periodic off-gases scrubbing tower (1) sidewall near top is configured with
2nd desalted water import (1.4)；Described periodic off-gases cleaning mixture outlet (1.1) is configured at the bottom of described periodic off-gases scrubbing tower (1)；
The top of described flash steam scrubbing tower (2) is configured with flash steam outlet (2.2), described flash steam scrubbing tower (2)
Middle part sidewall is configured with flash steam import (2.3), and the bottom of described flash steam scrubbing tower (2) is configured with and exports containing methanol cleaning mixture
(2.4)；Described 1st desalted water import (2.1) is arranged at the described flash steam scrubbing tower (2) sidewall near top.
Preferably, described 2nd desalted water import (1.4) and described 1st desalted water import (2.1) are communicated to same desalination
Waterpipe.
The separating methanol after-treatment system that this utility model provides has the advantage that
(1) periodic off-gases cleaning mixture is drawn a pipeline to after flashed vapour desalination water valve in Liquid level adjusting valve position, as flashed vapour
Cleaning mixture, takes full advantage of methanol and can be dissolved in the principle of water, reduce crude carbinol concentration, the target of steam saving, with
Time improve the quality of methanol.
(2) can realize desalted water and periodic off-gases cleaning mixture mutually switches into the effect of flashed vapour scrubbing tower, use
Flexibly and easily.
Accompanying drawing explanation
The structural representation of the separating methanol after-treatment system that Fig. 1 provides for this utility model.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer, below
In conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
This utility model provides a kind of separating methanol after-treatment system, including periodic off-gases scrubbing tower 1 and flash steam scrubbing tower
2。
(1) periodic off-gases scrubbing tower
Acting as of periodic off-gases scrubbing tower: in methanol-fueled CLC, noble gas the most constantly accumulates, and noble gas contains
When amount increases, while affecting methanol-fueled CLC, will also result in the rising of power consumption.Therefore, it is provided with after methanol separator and speeds
Bleed air exhaust mouth, but, owing to the periodic off-gases of discharge can be containing a small amount of methanol, it is unfavorable to run hydrogen recovery unit below, because of
This, be transported to periodic off-gases scrubbing tower by periodic off-gases, and periodic off-gases scrubbing tower is with desalted water as washing medium, and desalted water absorbs periodic off-gases
In methanol, form cleaning mixture, and be sent in methanol distilling apparatus；And periodic off-gases scrubbed after be sent to hydrogen recovery unit, carry out
Hydrogen reclaims.
Concrete, the middle part sidewall of periodic off-gases scrubbing tower 1 is configured with periodic off-gases import 1.2；The top of periodic off-gases scrubbing tower 1
Being configured with periodic off-gases outlet 1.3, the periodic off-gases scrubbing tower 1 sidewall near top is configured with the 2nd desalted water import 1.4；Periodic off-gases
Cleaning mixture outlet 1.1 is configured at the bottom of periodic off-gases scrubbing tower 1.Periodic off-gases scrubbing tower 1 has periodic off-gases cleaning mixture outlet 1.1,
Periodic off-gases cleaning mixture outlet 1.1 is passed through periodic off-gases cleaning mixture conveyance conduit 3 and is communicated to the entrance of rectifier unit, for containing methanol
Periodic off-gases cleaning mixture be transported to rectifier unit.
(2) flash steam scrubbing tower
Flash steam contains methanol, so being provided with flash steam scrubbing tower, uses desalted water to be washed by the methanol in flash steam
Recovery is returned.
Its structure is: the top of flash steam scrubbing tower 2 is configured with flash steam outlet 2.2, the medial side of flash steam scrubbing tower 2
Wall is configured with flash steam import 2.3, and the bottom of flash steam scrubbing tower 2 is configured with and exports 2.4 containing methanol cleaning mixture；Flash steam washs
Tower 2 is configured with the 1st desalted water import 2.1, and the 1st desalted water import 2.1 is communicated with desalted water inlet pipeline 5, in desalted water import
Pipeline 5 is provided with desalination water control valve 6；Desalination water control valve 6 is to the desalted water import between the 1st desalted water import 2.1
Pipeline is referred to as the desalted water pipeline near entrance point.
This utility model innovation is: also draws one from the periodic off-gases cleaning mixture conveyance conduit 3 of periodic off-gases scrubbing tower and speeds
Venting cleaning mixture conveying arm 4, the port of export of periodic off-gases cleaning mixture conveying arm 4 is connected to the desalting pipe near entrance point
Road；It is also equipped with periodic off-gases cleaning mixture at periodic off-gases cleaning mixture conveying arm 4 and controls valve 7.
Its principle is: the methanol concentration that periodic off-gases cleaning mixture contains is about 10%, by the conveying of periodic off-gases cleaning mixture
Pipe, can be incorporated into flash steam scrubbing tower, carry out the washing of flashed vapour, utilizes the principle that first alcohol and water dissolves each other, and periodic off-gases washs
Methanol in flashed vapour can be washed 0.1% from 5%-10% by liquid, improves the washing and recycling rate of methanol in flashed vapour；With
Time, in the cleaning mixture that flash steam scrubbing tower is discharged, methanol concentration also brings up to 20%, and water content is relatively low, decreases rectifier unit
Water content, beneficially rectifier unit steam saving, simultaneously can preferably allow methanol be suitable for the needs of MTO level methanol.Simultaneously
Also save the use of desalted water.
It addition, in this utility model, be also equipped with periodic off-gases cleaning mixture at periodic off-gases cleaning mixture conveying arm 4 and control valve
7, therefore, it is manipulated by valve, both can maintain former pipeline performance, it is possible to switch to new pipeline, in actual application, can be spaced
Open control valve, it is achieved former pipeline and the mutual switching of new pipeline, better.
This patent is mainly periodic off-gases washing pipe arrangement line to after the washing desalination water valve of flashed vapour, thus realize desalted water with
Periodic off-gases cleaning mixture is changeable enters into flashed vapour scrubbing tower.Have the advantage that
First, take full advantage of methanol and can be dissolved in the principle of water, reduce crude carbinol concentration, the mesh of steam saving
Mark, improves the quality of methanol simultaneously.
Second, periodic off-gases cleaning mixture is mainly drawn a pipeline to flashed vapour desalination water valve by the application in Liquid level adjusting valve position
After, as flashed vapour cleaning mixture, desalted water can be realized simultaneously and periodic off-gases cleaning mixture mutually switches into flashed vapour washing
Tower.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should regard protection domain of the present utility model.
Claims (3)
1. a separating methanol after-treatment system, it is characterised in that include periodic off-gases scrubbing tower (1) and flash steam scrubbing tower (2)；
Wherein, described periodic off-gases scrubbing tower (1) is configured with periodic off-gases cleaning mixture outlet (1.1), and described periodic off-gases cleaning mixture exports
(1.1) entrance of rectifier unit it is communicated to by periodic off-gases cleaning mixture conveyance conduit (3)；
Described flash steam scrubbing tower (2) is configured with the 1st desalted water import (2.1), and described 1st desalted water import (2.1) is communicated with
Desalted water inlet pipeline (5), is provided with desalination water control valve (6) described desalted water inlet pipeline (5)；Described desalination water control
Valve processed (6) is referred to as the desalting pipe near entrance point to the desalted water inlet pipeline between described 1st desalted water import (2.1)
Road；
It addition, also draw periodic off-gases cleaning mixture conveying arm (4), institute from described periodic off-gases cleaning mixture conveyance conduit (3)
The port of export stating periodic off-gases cleaning mixture conveying arm (4) is connected to the described desalted water pipeline near entrance point；Put described speeding
Gas washing liquid conveying arm (4) is also equipped with periodic off-gases cleaning mixture and controls valve (7).
Separating methanol after-treatment system the most according to claim 1, it is characterised in that described periodic off-gases scrubbing tower (1)
Middle part sidewall is configured with periodic off-gases import (1.2)；The top of described periodic off-gases scrubbing tower (1) is configured with periodic off-gases outlet (1.3),
The described periodic off-gases scrubbing tower (1) sidewall near top is configured with the 2nd desalted water import (1.4)；Described periodic off-gases cleaning mixture goes out
Mouth (1.1) is configured at the bottom of described periodic off-gases scrubbing tower (1)；
The top of described flash steam scrubbing tower (2) is configured with flash steam outlet (2.2), the middle part of described flash steam scrubbing tower (2)
Sidewall is configured with flash steam import (2.3), and the bottom of described flash steam scrubbing tower (2) is configured with and exports containing methanol cleaning mixture
(2.4)；Described 1st desalted water import (2.1) is arranged at the described flash steam scrubbing tower (2) sidewall near top.
Separating methanol after-treatment system the most according to claim 2, it is characterised in that described 2nd desalted water import (1.4)
It is communicated to same desalted water pipeline with described 1st desalted water import (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620661478.3U CN205760498U (en) | 2016-06-29 | 2016-06-29 | Separating methanol after-treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620661478.3U CN205760498U (en) | 2016-06-29 | 2016-06-29 | Separating methanol after-treatment system |
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| Publication Number | Publication Date |
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| CN205760498U true CN205760498U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620661478.3U Active CN205760498U (en) | 2016-06-29 | 2016-06-29 | Separating methanol after-treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329192A (en) * | 2018-01-13 | 2018-07-27 | 安徽金禾实业股份有限公司 | In a kind of methanol production in gas recovery crude carbinol method and device |
-
2016
- 2016-06-29 CN CN201620661478.3U patent/CN205760498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329192A (en) * | 2018-01-13 | 2018-07-27 | 安徽金禾实业股份有限公司 | In a kind of methanol production in gas recovery crude carbinol method and device |
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