CN208711303U - A kind of processing system of flashed vapour and system for methanol synthesis with it - Google Patents
A kind of processing system of flashed vapour and system for methanol synthesis with it Download PDFInfo
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- CN208711303U CN208711303U CN201821003113.7U CN201821003113U CN208711303U CN 208711303 U CN208711303 U CN 208711303U CN 201821003113 U CN201821003113 U CN 201821003113U CN 208711303 U CN208711303 U CN 208711303U
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Abstract
The utility model provides a kind of processing system of flashed vapour and the system for methanol synthesis with it.The processing system of the flashed vapour with flashed vapour feed-line for being connected to, and the processing system includes flash distillation gas wash tower, gas-liquid separator and the compressor being sequentially connected to, and flash distillation gas wash tower with the flashed vapour feed-line for being connected to.Flashed vapour is realized using above-mentioned processing system to be changed to recycle by emptying burning, and reduces carbon emission amount；Above-mentioned processing system investment is small, payoff period is short, implements simple and easy, and operation is easy to operate, and maintenance cost is low, and easy to implement, and operating cost is low, plant maintenance is simple and easy, is easily promoted and applied, exploitativeness is strong；After implementation, it can effectively avoid the ash content blockage problem and equipment etching problem that former design occurs, substantially increase the stability of device operation.
Description
Technical field
The utility model relates to coal chemical technologies, a kind of processing system in particular to flashed vapour and have its first
Alcohol synthesis system.
Background technique
The cleaning of coal with efficiently using being important technical project and state, China in current China's energy and environment protection field
One of the key technology of people's sustained economic development.
Coal gasification is to convert non-renewable energy to the main path of clean secondary energy sources, and domestic gasification installation is equal at present
It is made of more set gasification systems (being counted according to the coal feeding amount 1500t/d of typical every furnace), respectively corresponds more set flash distillation Hei Shuichu
Reason system, have during normal production 1 set or 2 sets it is spare, the tolerance for the flashed vapour that every set hp flash drum generates is about 800Nm3/
H (moisture), temperature are 70 DEG C, and pressure is 0.2MPa (G).Flashed vapour design originally is delivered to sulfur recovery facility processing, through sulphur
Chilling tower, absorption tower in sulphur recyclable device enter burning in sulfur recovery tail gas incinerator after absorbing.Due to containing in flashed vapour
There are a certain amount of ash content and moisture, following influence can be brought to sulfur recovery facility: 1) water content is higher, and a large amount of water is brought into
Steam generator forms acid water after mixing with hydrogen tail gas is added, and steam generator end socket is caused to corrode；2) coal is carried in flashed vapour secretly
Ash is more, and long-term operation will lead to amine liquid systemic contamination, and the chilling tower, absorption tower pressure difference in sulfur recovery facility go up, together
When sulfur dioxide in flue gas discharge amount also go up therewith, and then cause to discharge exceeded.
At present according to the real composition situation of flashed vapour, in order to avoid being caused in safety and environmental protection to follow-up system operation
It destroys.Flashed vapour all passes through control valve and is sent to high pressure hydrogen-rich torch burning, this kind of method of operation will cause the harm of environmental protection, together
When also have a certain impact to the safe and stable operation of flare system, and increase the risk of device.
Therefore, it is produced always with being able to maintain equipment normal table while mitigating environmental protection pressure, reducing loss of material
It is the target and urgent problem to be solved of those skilled in the art.
Utility model content
The main purpose of the utility model is to provide a kind of processing system of flashed vapour and there is its system for methanol synthesis,
To solve the problems, such as the security and stability, pollution environment and waste material that influence production in the prior art.
To achieve the goals above, one aspect according to the present utility model provides a kind of processing system of flashed vapour,
The processing system of flashed vapour for being connected to flashed vapour feed-line, processing system include the flash distillation gas wash tower being sequentially connected to,
Gas-liquid separator and compressor, flash distillation gas wash tower with flashed vapour feed-line for being connected to.
Further, processing system further includes pressure-regulating device, and pressure-regulating device is set to flashed vapour conveying
On pipeline.
Further, flash distillation gas wash tower is provided with washing water water inlet.
Further, processing system further includes demister, and demister is set to inside flash distillation gas wash tower.
Further, demister is wire mesh demister.
Further, desalted water water inlet is provided on demister.
Further, flash distillation gas wash tower has scrubbing tower first outlet and scrubbing tower second outlet, and scrubbing tower first goes out
Mouth is connected to the entrance of gas-liquid separator, and processing system further includes ash water recycling device, ash water recycling device and scrubbing tower second
Outlet.
Further, processing system further include: buck feed-line, respectively with ash water recycling device and washing water water inlet
Connection；Grey water pump is arranged on buck feed-line.
Further, processing system further includes the first fluid level control device, and the first fluid level control device is set to scrubbing tower
Between second outlet and ash water recycling device.
Further, gas-liquid separator has separator first outlet and separator second outlet, separator first outlet
It is communicated with compressor and separator second outlet is connected to ash water recycling device.
Further, processing system further includes the second fluid level control device, and the second Liquid level is set to separator second
Between outlet and ash water recycling device.
Another aspect according to the present utility model provides a kind of system for methanol synthesis, including transformation cooler, transformation are washed
Ammonia tower 5, deammoniation tower, low-temp methanol washing unit and synthesis unit, system for methanol synthesis further include the processing of above-mentioned flashed vapour
System, the compressor in the processing system of flashed vapour are connected to transformation cooler.
Using the technical solution of the utility model, a kind of processing system of flashed vapour is provided, which includes suitable
Flash distillation gas wash tower, gas-liquid separator and the compressor of secondary connection, flash distillation gas wash tower with flashed vapour feed-line for being connected to.
Flashed vapour is realized using above-mentioned processing system to be changed to recycle by emptying burning, and reduces carbon emission amount；Above-mentioned processing
System investments are small, payoff period is short, implement simple and easy, and operation is easy to operate, and maintenance cost is low, and easy to implement, operation
It is at low cost, plant maintenance is simple and easy, is easily promoted and applied, exploitativeness is strong；After implementation, former design can effectively avoid
The ash content blockage problem and equipment etching problem of appearance substantially increase the stability of device operation.
Detailed description of the invention
The Figure of description for constituting a part of the utility model is used to provide a further understanding of the present invention, this
The illustrative embodiments and their description of utility model do not constitute the improper limit to the utility model for explaining the utility model
It is fixed.In the accompanying drawings:
Fig. 1 shows a kind of connection relationship diagram of the processing system of flashed vapour provided by the utility model；
Fig. 2 shows a kind of local connection relationship diagrams of system for methanol synthesis provided by the utility model；And
Fig. 3 shows the local connection relationship diagram of another system for methanol synthesis provided by the utility model.
Wherein, the above drawings include the following reference numerals:
1, gas wash tower is flashed；2, gas-liquid separator；3, compressor；4, cooler is converted；5, Ammonic washing tower is converted；6, desalination
Water；7, low pressure buck；8, flashed vapour；9, flashed vapour is converted；10, conversion gas；11, ash water recycling device；12, low-temp methanol washs
Unit；13, deammoniation tower；24, desalination water heater；27, torch；28, sulfur recovery unit；30, fresh water；38, washing water.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.In addition, term " packet
Include " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps
Or the process, method, system, product or equipment of unit those of are not necessarily limited to be clearly listed step or unit, but can wrap
Include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As described in background technique, flashed vapour in the prior art there is a problem of in safety and environmental protection, and
There are loss of material.Available gas (CO+H in flashed vapour2) content is higher, it is high to recycle value.Through calculating, if by flashed vapour
It recycles, it is contemplated that recyclable available gas amount (according to 5 gasification furnace gauges) about 1600Nm3/ h is sent to methanol synthesizer energy
Enough production methanol about 0.73t/h are (according to 2200Nm3The equivalent 1 ton of methanol of/h synthesis gas calculates), economic benefit 760 can be increased within 1 year
Wan Yuan.
Flash gas in the prior art generally includes following component (V%):
The utility model is studied regarding to the issue above, proposes a kind of processing system of flashed vapour, the flashed vapour
Processing system with flashed vapour feed-line for being connected to, as shown in Figure 1, the processing system includes the flash distillation gas washing being sequentially connected to
Tower 1, gas-liquid separator 2 and compressor 3, flashed vapour feed-line, flash distillation gas wash tower 1, flash distillation gas wash tower 1 be used for it is above-mentioned
The connection of flashed vapour feed-line.
Flashed vapour is changed to recycle by the above-mentioned processing system of the utility model by emptying burning, reduces carbon emission
Amount, voluminous methanol reduce unit ton methanol unit consumption feed coal；After washing flashed vapour tangentially enter gas-liquid separator 2, it can be achieved that
Separation condensate liquid to greatest extent；It can effectively avoid the ash content blockage problem and equipment etching problem that former design occurs, mention significantly
The high stability of device operation.
In the above-mentioned processing system of the utility model, in order to be conducive to keep the safety in production, in a preferred embodiment,
Processing system is additionally provided with pressure-regulating device, and pressure-regulating device is set on flashed vapour feed-line.Preferably, it presses
Apparatus for adjusting force is pressure-regulating valve.Wherein, flashed vapour enters the bottom of flash distillation gas wash tower 1 via flashed vapour feed-line.
Flashed vapour can be the mixed gas of the flashed vapour 8 for carrying out self-gasifying device and the transformation flashed vapour 9 from converting means.It is preferred that
Ground, the transformation flashed vapour 9 from converting means also pass through pressure adjusting.
In the above-mentioned processing system of the utility model, in order to remove deentrainment liquid foam, it is preferable that processing system further includes removing
Foam device, the demister are set to inside flash distillation gas wash tower 1.Preferably, demister is wire mesh demister.Also, in order to clean
Wire mesh demister, it is highly preferred that being provided with desalted water water inlet on demister, for being passed through desalted water 6, as shown in Figure 1.This reality
Demister filler is rinsed using desalted water with novel middle scrubbing tower packing layer, which avoids demister filler
Dirt is stifled, it is ensured that the foam removal effect of flash distillation gas wash tower 1.
In a preferred embodiment, processing system is additionally provided with ash water recycling device 11.Preferably, ash water recycling
Device 11 is buck subsider.It is highly preferred that flash distillation gas wash tower 1 is provided with scrubbing tower first outlet and scrubbing tower second goes out
Mouthful, scrubbing tower first outlet is connected to gas-liquid separator 2 and scrubbing tower second outlet is connected to ash water recycling device 11.More
Preferably, gas-liquid separator 2 is provided with separator first outlet and separator second outlet, separator first outlet and compressor
3 connections and separator second outlet are connected to ash water recycling device 11.It is further preferred that processing system further includes buck
Feed-line and grey water pump, buck feed-line respectively with above-mentioned ash water recycling device 11 and flash gas wash tower 1 washing water
Water inlet connection, grey water pump are set on buck feed-line.The utility model makes full use of internal system water circulation use, not
Increase fresh water consume, has saved and used water.
In above-mentioned preferred embodiment, for the ease of internal water recycling, it is further preferable that processing system is additionally provided with
First fluid level control device, fluid level control device are set between scrubbing tower second outlet and ash water recycling device 11；Also, more
For preferably, processing system is additionally provided with the second fluid level control device, Liquid level is set to separator second outlet and buck
Between recyclable device 11.
The utility model also proposed a kind of system for methanol synthesis of processing system including flashed vapour, as shown in Fig. 2, should
System for methanol synthesis includes flashed vapour feed-line, transformation cooler 4, transformation Ammonic washing tower 5, low-temp methanol washing unit 12, takes off
Ammonia tower 13 and subsequent synthesis unit, and the system for methanol synthesis further includes the processing system of above-mentioned flashed vapour, flashed vapour
In processing system flash distillation gas wash tower 1, flashed vapour processing system in gas-liquid separator 2, flashed vapour processing system in
Compressor 3, transformation cooler 4 with transformation Ammonic washing tower 5 be sequentially connected to.
The utility model at home and abroad temporarily can not be substituted scheme at present.
The processing system of flashed vapour provided by the utility model is further illustrated below with reference to embodiment and with its first
Alcohol synthesis system.
Embodiment 1
As illustrated in fig. 1 and 2, the present embodiment provides a kind of system for methanol synthesis of processing system including flashed vapour, wherein
Gasification installation flashed vapour removes the flashed vapour 8 (50 DEG C, 0.4MPa (G)) of sulfur recovery unit general pipeline, and a branch pipe is connect before battery limit (BL) main valve,
It is the transformation flashed vapour 9 (70 DEG C, 0.7MPa (G)) that 0.3MPa (G) and converting means come through pressure-regulating valve pressure regulation, equally through pressing
(53 DEG C, 0.3Mpa (G)) enters flash distillation 1 bottom of gas wash tower and flash distillation after force regulating valve adjusts pressure to 0.3MPa (G) mixing
The low pressure buck 7 that 1 tower top of gas wash tower sprays into, is inversely contacted between tower tray, reduces temperature, and carried secretly in washing gas
Soot particle (coal dust).Flashed vapour after washing, purifying is through demister, and except being discharged after deentrainment liquid foam by tower top, then tangent line enters gas
Liquid/gas separator 2 carries out gas-liquid separation.Flashed vapour after separating moisture, is sent to transformation after compressor 3 is pressurized to 6.5Mpa (G) and washes
The inlet of transformation cooler 4 before ammonia tower 5.
It flashes low pressure buck used in 1 top of gas wash tower to be supplied by the grey water pump of ash water recycling device 11, without disappearing
Consume fresh water.Buck after washing is sent to by flash distillation 1 fluid level control valve of gas wash tower by the ash water recycling pipeline of tower bottom
Ash water recycling device 11；Desalted water water inlet, spray periodically or non-periodically are configured on the wire mesh demister of scrubber overhead
Enter desalted water 6 to cleaning web demister.
The condensate liquid that gas-liquid separator 2 is isolated imports the ash water recycling pipeline of flash distillation 1 tower bottom of gas wash tower, entirely
System water is all realized and is recycled.
Embodiment 2
As shown in Figures 2 and 3, the present embodiment provides a kind of system for methanol synthesis of processing system including flashed vapour, from gas
Disguise and flashed vapour 8 is introduced into flash distillation 1 bottom of gas wash tower with pipeline before setting flashed vapour general pipeline desulfuration recovery valve, by scrubbing tower
Rise after water-bath, inversely contacted with washing tower tray floor washing water, reduces temperature, and the soot particle (coal carried secretly in washing gas
Powder).Washing water is supplied by the fresh water that gasification installation flush water pump provides, and pressure is 1.3Mpa (G).Washing water after washing is logical
It crosses scrubbing tower fluid level control valve and is sent to ash water recycling device 11.
Flashed vapour after washed removal of impurities is pressurized to 6.5Mpa (G) by entering compressor 3 after the separation moisture of gas-liquid separator 2
It is sent to desalination water heater 24 and advances into conversion gas system, finally sent after deamination, desulfurization, decarburization to synthesis system and synthesize first
Alcohol.The condensate liquid isolated is sent to ash water recycling device 11 by fluid level control valve and recycles.
In Fig. 3, PT indicates pressure transmitter, i.e. pressure-regulating device；LT indicates that fluid level transmitter, i.e. Liquid level fill
It sets.
Wherein, the flashed vapour 8 from general pipeline enters before going torch 27 to burn and go sulfur recovery unit 28 via branch pipe
Flash the bottom of gas wash tower 1；Fresh water 30 from flush water pump sprays into flash distillation gas wash tower 1 from washing water inlet；Washing
Washing water afterwards is sent to ash water recycling device 11 by scrubbing tower fluid level control valve；Flashed vapour after washed removal of impurities is by gas-liquid point
Enter compressor 3 after separating moisture from device 2；The condensate liquid that gas-liquid separator 2 is isolated is sent to ash water recycling by fluid level control valve
Device 11；Desalination water heater 24 and transformation cooler 4 are sent to after pressurizeing via compressor 3 with conversion gas 10；Enter back into transformation
Ammonic washing tower 5, washing water 38 are sprayed into from transformation 5 top of Ammonic washing tower；Treated, and gas enters gas-liquid separator 2, and low-temperature conversion is cold
Lime set is sent to deammoniation tower 13.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
The embodiments of the present invention provide a kind of flash distillation gas processing system and the system for methanol synthesis with it, pass through
By gasification high pressure flash gas after wash, clean separation and compression pressure-raising recycling, then it is incorporated in Water gas shift/WGS device through low
Warm methanol is sent into follow-up system synthesizing methanol after washing desulfurization and decarburization, under the premise of not increasing feed coal investment, voluminous methanol, from
And reduce unit ton methanol unit consumption feed coal.Handling flashed vapour by the system can be reduced carbon emission amount, improve original
Expect utilization rate, is conducive to environmental protection, and effectively avoid ash content blockage problem and equipment etching problem, to improve production
Safety and stability.Scrubbing tower packing layer rushes demister filler using desalted water in the embodiments of the present invention
It washes, it is stifled which avoids demister filler dirt, it is ensured that the foam removal effect of scrubbing tower.In addition, the implementation of the utility model
Washing water used in example can come from the buck recycled, makes full use of internal system water circulation use, does not increase fresh
Water consume has saved and has used water.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (12)
1. a kind of processing system of flashed vapour, the processing system of the flashed vapour is special for being connected to flashed vapour feed-line
Sign is that the processing system includes the flash distillation gas wash tower (1), gas-liquid separator (2) and compressor (3) being sequentially connected to, institute
Flash distillation gas wash tower (1) is stated for being connected to the flashed vapour feed-line.
2. the processing system of flashed vapour according to claim 1, which is characterized in that the processing system further includes pressure tune
Regulating device, and the pressure-regulating device is set on the flashed vapour feed-line.
3. the processing system of flashed vapour according to claim 1, which is characterized in that flash distillation gas wash tower (1) setting
There is washing water water inlet.
4. the processing system of flashed vapour according to claim 1, which is characterized in that the processing system further includes foam removal
Device, it is internal that the demister is set to the flash distillation gas wash tower (1).
5. the processing system of flashed vapour according to claim 4, which is characterized in that the demister is wire mesh demister.
6. the processing system of flashed vapour according to claim 4, which is characterized in that be provided with desalted water on the demister
Water inlet.
7. the processing system of flashed vapour according to claim 3, which is characterized in that the flash distillation gas wash tower (1) has
Scrubbing tower first outlet and scrubbing tower second outlet, the entrance company of the scrubbing tower first outlet and the gas-liquid separator (2)
Logical, the processing system further includes ash water recycling device (11), and the ash water recycling device (11) goes out with the scrubbing tower second
Mouth connection.
8. the processing system of flashed vapour according to claim 7, which is characterized in that the processing system further include:
Buck feed-line is connected to the ash water recycling device (11) and the washing water water inlet respectively；
Grey water pump is arranged on the buck feed-line.
9. the processing system of flashed vapour according to claim 8, which is characterized in that the processing system further includes the first liquid
Level control device, first fluid level control device are set to the scrubbing tower second outlet and the ash water recycling device (11)
Between.
10. the processing system of flashed vapour according to claim 7, which is characterized in that the gas-liquid separator (2), which has, divides
From device first outlet and separator second outlet, the separator first outlet is connected to and described point with the compressor (3)
It is connected to from device second outlet with the ash water recycling device (11).
11. the processing system of flashed vapour according to claim 10, which is characterized in that the processing system further includes second
Fluid level control device, second Liquid level be set to the separator second outlet and the ash water recycling device (11) it
Between.
12. a kind of system for methanol synthesis, including transformation cooler (4), transformation Ammonic washing tower (5), deammoniation tower (13), low-temp methanol are washed
Wash unit (12) and synthesis unit, which is characterized in that the system for methanol synthesis further includes any one of claims 1 to 11 institute
The processing system for the flashed vapour stated, compressor (3) and the transformation cooler (4) company in the processing system of the flashed vapour
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821003113.7U CN208711303U (en) | 2018-06-27 | 2018-06-27 | A kind of processing system of flashed vapour and system for methanol synthesis with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821003113.7U CN208711303U (en) | 2018-06-27 | 2018-06-27 | A kind of processing system of flashed vapour and system for methanol synthesis with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208711303U true CN208711303U (en) | 2019-04-09 |
Family
ID=65972117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821003113.7U Active CN208711303U (en) | 2018-06-27 | 2018-06-27 | A kind of processing system of flashed vapour and system for methanol synthesis with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208711303U (en) |
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2018
- 2018-06-27 CN CN201821003113.7U patent/CN208711303U/en active Active
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Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: Guoneng Baotou Coal Chemical Co.,Ltd. Patentee after: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: SHENHUA BAOTOU COAL CHEMICAL Co.,Ltd. Patentee before: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |