CN206172978U - High temperature contains sulphur waste gas preparation liquid sulfur dioxide device - Google Patents
High temperature contains sulphur waste gas preparation liquid sulfur dioxide device Download PDFInfo
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- CN206172978U CN206172978U CN201621057818.8U CN201621057818U CN206172978U CN 206172978 U CN206172978 U CN 206172978U CN 201621057818 U CN201621057818 U CN 201621057818U CN 206172978 U CN206172978 U CN 206172978U
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- sulfur dioxide
- high temperature
- condenser
- exhaust gas
- containing exhaust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a high temperature contains sulphur waste gas preparation liquid sulfur dioxide device, including filter (1), reboiler (2), phase transition condenser (3), absorption tower (4), poor / rich solution heat exchanger (7), desorber (8), desicator (9), gasification condenser (10), compressor (11) and liquid sulfur dioxide storage tank (12). The utility model discloses make full use of contains the high temperature attribute of sulphur waste gas, through adjusting the commodity circulation order of connection, reaches energy optimal configuration's purpose, vapor through being rich in in the desorption waste gas in advance to the mode that sulfur dioxide taked " a densification " to add " second absorption ", effectively dwindles the absorption equipment size, strengthens mass transfer efficiency, realizes energy saving and consumption reduction's target, make full use of common resources reaches current technology simultaneously to the comprehensive efficiency of improvement system.
Description
Technical field
The utility model is environmental protection and field of chemical engineering, is related to industrial waste gas high value added utilization, is particularly well-suited to height
Warm sulphur-containing exhaust gas prepare liquid sulfur dioxide field.
Background technology
Sulfur dioxide is Air Pollutants, and adsorbent dry desulfurization such as active coke desulphurizing etc. is scrubbing CO_2 weight
Want means.To control cost, adsorbent generally needs regeneration cycle to use, and wherein desorption under high temperature is the conventional regeneration side of adsorbent
Method.Industry typically employ nitrogen as hot recycling when carrier gas, due to generate stripping gas in sulfur dioxide concentration it is relatively low, therefore
It is usually used in preparing dilute sulfuric acid.But due to dilute sulfuric acid products application narrow range, it is low as the added value of desulfuration byproduct.
Compared with dilute sulfuric acid, liquid sulfur dioxide is widely used in food service industry and textile industry, with being widely used, valency
The high advantage of value.Therefore, the Sulphur Dioxide in stripping gas can effectively be alleviated into environmental protection pressure for sulfur dioxide liquid, and
The high value added utilization of industrial waste gas can be realized.
At present, the method for industrial mass production liquid sulfur dioxide mainly has absorption process, pure oxygen combustion sulphur method, sulfur trioxide
Reducing process, sulfuric acid decomposition method etc..The difference of various methods is mainly concentrated in obtaining the sulfur dioxide gas aspect of high concentration.
After high-concentration sulfur dioxide gas is obtained, typically all using pressurization or cooling method, or adopt what is pressurizeed and cool down
Method is producing sulfur dioxide liquid.
By the hot recycling mode for improving desulfurizing agent, using vapor as carrier come Desorption desulphurization agent, because vapor it is easily cold
It is solidifying, can be by separating vapor to stripping gas cooling condensation, so as to enrichment sulfur dioxide, gained gas is prepared again by absorption process
Liquid sulfur dioxide.From desulfurizing agent hot recycling when the stripping gas that generates in recovery prepare sulfur dioxide liquid, because sulfur dioxide comes
Source is stable and cheap, has on production cost and has great advantage.
Conventional suction method prepares sulfur dioxide liquid technology, after generally flue gas elder generation removing dust is lowered the temperature, then is passed through absorption tower
Absorb.Which is not reclaimed and using the energy of flue gas, therefore the generally low waste gas of suitable treatment heat quality.Meanwhile, pass
The sulfur dioxide in flue gas content that system absorption pattern is processed is typically relatively low, causes that desulphurization plant is bulky, doctor solution consumption is big
And height is lost, increase system total energy consumption, so as to further increase the cost of product.
During sulfur dioxide liquid is prepared by high temperature sulphur-containing exhaust gas, the temperature difference of each stream stock and reaction unit compared with
Greatly, by rational arrangement, it is possible to achieve the Optimum utilization of energy.
Utility model content
To solve the above problems, the utility model prepares liquid sulfur dioxide device there is provided a kind of high temperature sulphur-containing exhaust gas,
The high temperature properties of sulphur-containing exhaust gas are made full use of, by adjusting the logistics order of connection, the purpose of energy-optimised configuration is reached；By pre-
The vapor being rich in waste gas is first removed, takes sulfur dioxide " enrichment " to add the mode of " double absorption ", effectively reduced
Absorption equipment size, strengthens mass-transfer efficiency, realizes energy-saving target；Simultaneously public resource and existing process are made full use of,
To improve the overall efficiency of system, concrete technical scheme is as follows：
A kind of high temperature sulphur-containing exhaust gas prepare liquid sulfur dioxide device, including filter, reboiler, phase-change condenser, suction
Tower, lean/rich liquid heat exchanger, desorber, drier, gasification condenser, compressor and sulfur dioxide liquid storage tank are received,
The filter, reboiler, phase-change condenser, absorption tower, lean/rich liquid heat exchanger, desorber, drier, gas
Change condenser, compressor and sulfur dioxide liquid storage tank to be sequentially connected；Absorption tower and lean/rich liquid heat exchanger pass through rich solution pipeline
It is connected with lean liquid pipeline；Reboiler is connected respectively with lean/rich liquid heat exchanger and desorber.
Further, including circulating pump and absorbing liquid storage tank, circulating pump and absorbing liquid storage tank are sequentially connected and installed in absorption
In the rich solution path and lean solution path of tower and lean/rich liquid heat exchanger.
Further, including the multistage absorption tower being sequentially connected, absorption tower outlet content of sulfur dioxide is less than 20mg/Nm3。
Further, the temperature in the filter is 350-450 DEG C.
Further, the reboiler adopts coiled indirectly heat, pipe endogenous pyrogen to be high temperature sulphur-containing exhaust gas and supplement steam,
Two thermals source are independent each other, and coil pipe is arranged using alternating expression.
Further, the phase-change condenser is plate-type condenser or shell-and-tube heat exchanger, phase-change condenser using it is multistage simultaneously
Connection, phase-change condenser outlet temperature is 70-90 DEG C.
Further, using solid acid drier or the concentrated sulfuric acid, drier is using filling for the drier in the drier
Bed form filling.
Further, refrigerant used is liquefied ammonia in the gasification condenser, and chilling temperature is -15 DEG C.
Further, the compressor adopts non lubricant oil structure.
The beneficial effects of the utility model are：
The utility model makes full use of the high temperature properties of sulphur-containing exhaust gas, by adjusting the logistics order of connection, reaches energy excellent
Change the purpose of configuration；By the vapor being rich in removing waste gas in advance, " enrichment " is taken sulfur dioxide to add " secondary suction
The mode of receipts ", effectively reduces absorption equipment size, strengthens mass-transfer efficiency, realizes energy-saving target；Make full use of public affairs simultaneously
Common resource and existing process, to improve the overall efficiency of system.
The technique device main advantage：(1) the stripping gas outlet temperature that the hot recycling process of desulfurizing agent is produced is higher than 400
DEG C, and the solution of sulfur dioxide absorbs and needs to carry out under cryogenic, high-temperature gradient is utilized beneficial to the multiple-effect of energy；(2)
Using high-temperature dust removing device, when solid dust and oiliness impurity is removed, it is to avoid the particle agglomeration caused because of cryogenic condensation and pipe
Road blocks；(3) the mode water vapor removing condensed using phase transformation, is realized " enrichment " of SO 2 in waste gas；(4) utilize
Sulfur dioxide absorbing liquid orients sulfur dioxide absorption, realizes efficiently separating for sulfur dioxide；(5) two are freezed using liquid ammonia gasification
Sulfur oxide, makes full use of public resource and reaches energy-conservation purpose.
The technology is significant for the higher value application of energy-saving and emission-reduction, energy cascade recovery and industrial waste gas.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the utility model multistage absorption embodiment schematic diagram.
Specific embodiment
The principle and feature of utility model are described below in conjunction with accompanying drawing, example is served only for explaining that this practicality is new
Type, is not intended to limit scope of the present utility model.
Embodiment 1：
A kind of such as Fig. 1, high temperature sulphur-containing exhaust gas prepare liquid sulfur dioxide device, including efficient ceramic filter 1, reboiler
2nd, phase-change condenser 3, absorption tower 4, circulating pump, absorbing liquid storage tank, lean/rich liquid heat exchanger 7, desorber 8, drier 9, gasification
Condenser 10, compressor 11 and sulfur dioxide liquid storage tank 12.
Filter 1, reboiler 2, phase-change condenser 3, absorption tower 4 are sequentially connected, and form high temperature sour gas path.Absorption tower
4th, absorbing liquid storage tank 6, circulating pump 5, lean/rich liquid heat exchanger 7, desorber 8 are sequentially connected to form rich solution path.Desorber 8, again
Boiling device 2, high temperature circulation pump 51, lean/rich liquid heat exchanger 7, absorbing liquid storage tank 61, circulating pump 52, absorption tower 4 are sequentially connected to be formed
Lean solution path.Desorber 8, drier 9, gasification condenser 10, compressor 11 and sulfur dioxide liquid storage tank 12 are sequentially connected shape
Into sulfur dioxide path.
High temperature gas stream containing hydrogen sulphide to：The dedusting removal of impurities of high temperature sulphur-containing exhaust gas Jing efficient ceramic filters 1, the temperature in filter 1
For 350-450 DEG C.The heating desorption tower bottoms of reboiler 2 is entered consequently as thermal source, low temperature sulphur-containing exhaust gas are through phase-change condenser 3
Removing water vapour, i.e. steam condensate are discharged from phase-change condenser 3, and phase-change condenser 3 is that plate-type condenser or shell-and-tube are changed
Hot device, phase-change condenser 3 is in parallel using one or more levels, and the outlet temperature of phase-change condenser 3 is 70-90 DEG C.Then on absorption tower 4
It is interior with sulfur dioxide absorbing liquid counter-current absorption, after be emitted into flue.
Lean/rich liquid flow direction：Sulfur dioxide absorbing liquid (rich solution) in absorption tower 4 is in lean/rich liquid heat exchanger 7 and from again
The high-temperature barren liquor heat exchange of device 2 is boiled, reboiler 2 adopts coiled indirectly heat, pipe endogenous pyrogen to be high temperature sulphur-containing exhaust gas and supplement steaming
Vapour, two thermals source are independent each other, and coil pipe is arranged using alternating expression.Desorber 8 is entered afterwards.Sulfur dioxide absorbing liquid (rich solution) and height
Temperature steam counter current contacting, in the bottom of desorber 8 absorbing liquid (lean solution) is changed into, and generates high-temperature steam in reboiler 2 afterwards.
High temperature absorbing liquid (lean solution) from Jing high temperature circulations pump 51 in reboiler 2, in lean/rich liquid heat exchanger 7 with sulfur dioxide absorbing liquid
(rich solution) indirect heat exchange, the absorbing liquid (lean solution) after cooling enters absorbing liquid storage tank 61, and delivers to absorption tower 4 by circulating pump 52 and push up
Portion.
Sulfur dioxide is flowed to：The high-temperature steam generated from reboiler 2 is inhaled with the sulfur dioxide entered from the top of desorber 8
Receive liquid (rich solution) adverse current to desorb, stripping gas is entered in drier 9 and is dehydrated, and the drier in drier 9 is dried using solid acid
Agent or the concentrated sulfuric acid, drier is filled using packed bed form.Then cooled down indirectly by liquefied ammonia in gasification condenser 10, gasified cold
Refrigerant used is liquefied ammonia in condenser 10, and chilling temperature is -15 DEG C.Ammonia after gasification enters SCR workshop sections, and low temperature sulfur dioxide enters
Enter and further liquefied after compressor 11, then pass to be stored in sulfur dioxide liquid storage tank 12.Compressor 11 adopts non lubricant oil
Structure.
Embodiment 2：
As shown in Fig. 2 absorption tower is connected using two-stage series connection structure, i.e. absorption tower 4 and absorption tower 41.Two absorption towers point
Not Lian Jie an absorbing liquid storage tank 6, lean/rich liquid heat exchanger 7 is connected by circulating pump 5, the connection solution of lean/rich liquid heat exchanger 7
Inhale tower 8 and constitute rich solution path.Reboiler 2 connects lean/rich liquid heat exchanger 7 by circulating pump 51, and lean/rich liquid heat exchanger 7 connects
Connect absorbing liquid storage tank 61 and connect absorption tower 4 and absorption tower 41 by two circulating pumps (circulating pump 52 and circulating pump 53) respectively.Tail
Content of sulfur dioxide is less than 20mg/Nm in gas3.Remaining structure is with embodiment 1.
Embodiment 3：
In embodiment 1 the ammonia from gasification condenser 10 out returns freezing workshop section liquefaction Posterior circle and uses.Remaining knot
Structure is with embodiment 1.
The foregoing is only preferable combination implementation example of the present utility model, not to limit the utility model, it is all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc. should be included in this practicality new
Within the protection domain of type.
Claims (9)
1. a kind of high temperature sulphur-containing exhaust gas prepare liquid sulfur dioxide device, it is characterised in that including filter (1), reboiler
(2), phase-change condenser (3), absorption tower (4), lean/rich liquid heat exchanger (7), desorber (8), drier (9), gasification condenser
(10), compressor (11) and sulfur dioxide liquid storage tank (12),
The filter (1), reboiler (2), phase-change condenser (3), absorption tower (4), lean/rich liquid heat exchanger (7), desorber
(8), drier (9), gasification condenser (10), compressor (11) and sulfur dioxide liquid storage tank (12) are sequentially connected；Absorption tower
(4) it is connected with lean liquid pipeline by rich solution pipeline with lean/rich liquid heat exchanger (7)；Reboiler (2) is handed over respectively with lean/rich liquid heat
Parallel operation (7) and desorber (8) connect.
2. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that including circulating pump
With absorbing liquid storage tank, circulating pump and absorbing liquid storage tank are sequentially connected and installed in absorption tower (4) and lean/rich liquid heat exchanger (7)
Rich solution path and lean solution path in.
3. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that including phase successively
Multistage absorption tower (4) even, absorption tower (4) outlet content of sulfur dioxide is less than 20mg/Nm3。
4. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the filter
(1) temperature in is 350-450 DEG C.
5. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the reboiler
(2) using coiled indirectly heat, pipe endogenous pyrogen is high temperature sulphur-containing exhaust gas and supplements steam, and two thermals source are independent each other, and coil pipe is adopted
Arranged with alternating expression.
6. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the phase turns cold
Condenser (3) is plate-type condenser or shell-and-tube heat exchanger, and phase-change condenser (3) adopts plural parallel stage, phase-change condenser (3) outlet
Temperature is 70-90 DEG C.
7. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the drier
(9) drier in is filled using solid acid drier or the concentrated sulfuric acid, drier using packed bed form.
8. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the gasification is cold
Refrigerant used is liquefied ammonia in condenser (10), and chilling temperature is -15 DEG C.
9. high temperature sulphur-containing exhaust gas as claimed in claim 1 prepare liquid sulfur dioxide device, it is characterised in that the compressor
(11) using non lubricant oil structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057818.8U CN206172978U (en) | 2016-09-14 | 2016-09-14 | High temperature contains sulphur waste gas preparation liquid sulfur dioxide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057818.8U CN206172978U (en) | 2016-09-14 | 2016-09-14 | High temperature contains sulphur waste gas preparation liquid sulfur dioxide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206172978U true CN206172978U (en) | 2017-05-17 |
Family
ID=58676710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057818.8U Withdrawn - After Issue CN206172978U (en) | 2016-09-14 | 2016-09-14 | High temperature contains sulphur waste gas preparation liquid sulfur dioxide device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206172978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276812A (en) * | 2016-09-14 | 2017-01-04 | 北京清新环境技术股份有限公司 | A kind of high temperature sulphur-containing exhaust gas prepares liquid sulfur dioxide device |
-
2016
- 2016-09-14 CN CN201621057818.8U patent/CN206172978U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276812A (en) * | 2016-09-14 | 2017-01-04 | 北京清新环境技术股份有限公司 | A kind of high temperature sulphur-containing exhaust gas prepares liquid sulfur dioxide device |
| CN106276812B (en) * | 2016-09-14 | 2019-07-12 | 北京清新环境技术股份有限公司 | A kind of high temperature sulphur-containing exhaust gas prepares liquid sulfur dioxide device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20190712 |
|
| AV01 | Patent right actively abandoned |