CN206793412U - A kind of desulfurization regeneration system - Google Patents
A kind of desulfurization regeneration system Download PDFInfo
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- CN206793412U CN206793412U CN201720515653.2U CN201720515653U CN206793412U CN 206793412 U CN206793412 U CN 206793412U CN 201720515653 U CN201720515653 U CN 201720515653U CN 206793412 U CN206793412 U CN 206793412U
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Abstract
It the utility model is related to desulfurization regeneration field.A kind of desulfurization regeneration system, including desulfurizing tower, lean liquid tank, rich solution groove, foam tank, regeneration tank, hydraulic pressure chamber-type press filter and solid-liquid separator；Desulfurizing tower uses wet chemical sulfur removal technology, chemical reaction removal of hydrogen sulfide occurs with the hydrogen sulfide in biogas by being sent into doctor solution toward desulfurizing tower, reacted doctor solution flows into rich solution groove from desulfurizing tower, doctor solution is converted into sulphur foam and regenerated liquid by regeneration tank using chemical regeneration method, sulphur foam flows into foam tank, and regenerated liquid inflow hydraulic pressure chamber-type press filter is converted into regenerative sulfur binding liquid stream and enters lean liquid tank；Foam tank is communicated in solid-liquid separator, and sulphur foamed filter is obtained sulphur cream by solid-liquid separator, and the filtrate of solid-liquid separator flows into lean liquid tank and mixed with regenerative sulfur binding liquid, and regenerative sulfur binding liquid flows into desulfurizing tower from lean liquid tank and re-starts desulfurization.This kind of desulfurization regeneration system can carry out regeneration treatment to reacted doctor solution, improve the utilization rate of doctor solution, reduce the cost of enterprise.
Description
【Technical field】
Methane purification field of purification is the utility model is related to, more particularly to a kind of desulfurization regeneration system.
【Background technology】
Technique, equipment, environment will all be made in application process containing sulfurous gas, these gases such as hydrogen sulfide in biogas
Into certain influence.Hydrogen sulfide in biogas is a kind of flammable colourless gas, is the colourless gas for having rotten egg smell under normal temperature
Body, there is severe toxicity, density ratio air is big, and it is hydrosulphuric acid to be dissolved in the aqueous solution after water, and hydrosulphuric acid has larger corrosiveness to steel,
There is considerable influence to the conveyance conduit contacted and using the service life of machinery；And hydrogen sulfide produces in combustion
Harm of the raw sulfur dioxide to the body and environment of people is larger.Therefore during biogas is used as secondary energy sources, it is necessary to
Desulfurization is carried out to biogas.
At present, the technique of methane purification has the purifying techniques such as dry desulfurization, chemical desulfurization, pressure swing adsorption method, liquid absorption.
When purifying waste water passes through biogas caused by Anaerobic Treatment, the concentration of hydrogen sulfide is all higher than in general biogas in biogas, passes
The methane purification system of system does not recycle after carrying out desulfurization to biogas to doctor solution, adds enterprise's purchase doctor solution
Cost, waste resource, do not meet the theory of environmental protection and saving.
【Utility model content】
To solve the above problems, the utility model provides a kind of desulfurization regeneration system, the system is with de- after desulfurization
Sulphur liquid is raw material, produces to obtain regenerative sulfur binding liquid by chemical regeneration technique, so as to improve the utilization rate of doctor solution, alleviates enterprise
The cost of industry.
Technical solution adopted in the utility model is：A kind of desulfurization regeneration system, including desulfurizing tower, lean liquid tank, richness
Liquid bath, foam tank, regeneration tank, hydraulic pressure chamber-type press filter and solid-liquid separator；Desulfurizing tower uses wet chemical sulfur removal technology, passes through
Doctor solution being sent into toward desulfurizing tower chemical reaction removal of hydrogen sulfide occurring with the hydrogen sulfide in biogas, desulfurizing tower is provided with doctor solution entrance
Exported with doctor solution, reacted doctor solution exports through doctor solution and flows into rich solution groove, and rich solution groove is communicated in regeneration tank；Regeneration tank is set
There are sulphur foam outlet and regenerated liquid outlet, the doctor solution flowed into from rich solution groove is converted into sulphur bubble by regeneration tank using chemical regeneration method
Foam and regenerated liquid, sulphur foam flow into foam tank through sulphur foam outlet, and regenerated liquid outlet connects with hydraulic pressure chamber-type press filter, regenerated liquid
Regenerative sulfur binding liquid is converted into by press filtration be delivered to lean liquid tank after inflow hydraulic pressure chamber filter press；Foam tank is communicated in separation of solid and liquid
Device, solid-liquid separator is provided with filtrate port and screening exports, and sulphur foamed filter is obtained sulphur cream by solid-liquid separator, solid-liquid separator
Filtrate flows into lean liquid tank through filtrate port and mixed with regenerative sulfur binding liquid, and lean liquid tank is communicated in doctor solution entrance, and regenerative sulfur binding liquid is through de-
Sulphur liquid entrance flows into desulfurizing tower and carries out desulfurization process to biogas again.
In the above-mentioned technical solutions, this kind of desulfurization regeneration system also includes lye tank (vat), contains in lye tank (vat) without using
Doctor solution, lye tank (vat) connects with the doctor solution entrance of desulfurizing tower, when the concentration of the doctor solution of regeneration be not enough to desulfurization occurs it is anti-
At once desulfurizing tower will be delivered to without the doctor solution used automatically.
In the above-mentioned technical solutions, this kind of desulfurization regeneration system also includes sulfur melting kettle, and sulfur melting kettle is located at solid-liquid separator
Screening outlet, the sulphur cream that solid-liquid separator is isolated carries out melting and obtains sulphur.
In the above-mentioned technical solutions, this kind of desulfurization regeneration system also includes gas-liquid separator, and gas-liquid separator is located at de-
The gas outlet of sulphur tower, so that processing is dried to the biogas after desulfurization.
In the above-mentioned technical solutions, this kind of desulfurization regeneration system also includes the true of the travelling speed for accelerating doctor solution
Empty pump, between rich solution groove and regeneration tank, between regeneration tank and foam tank, between regeneration tank and hydraulic pressure chamber-type press filter and lean solution
Vavuum pump is equipped between groove, lye tank (vat) and regeneration tank.
The beneficial effects of the utility model are：This kind of desulfurization regeneration system is using chemical regeneration technique to reacted de-
Sulphur liquid carries out regeneration treatment.Have the advantage that：
(1) avoid, using excessive new doctor solution, improving the utilization rate of doctor solution.
(2) it is better using the desulfurization regeneration effect of chemical regeneration method.
(3) sulphur can be obtained by carrying out melting to sulphur cream by sulfur melting kettle.
(4) cost of enterprise is reduced, promotion effect is played to the theory of environmental protection and saving.
【Brief description of the drawings】
Fig. 1 is a kind of desulfurization regeneration system schematic of the present utility model；
Fig. 2 is the utility model and a kind of methane purification system combination schematic diagram.
Reference is：Desulfurizing tower 1, rich solution groove 101, rich solution pump 102, regeneration tank 110, foam tank 120, foam pump 121,
Sulfur melting kettle 122, solid-liquid separator 123, lean liquid tank 130, filter pump 131, hydraulic pressure chamber-type press filter 132, lye tank (vat) 140, alkali lye
Pump 141, gas-liquid separator 150, storage gas tank 2, booster fan 201, the valve 202 that reduces internal heat, gas-liquid separator 250, thick desulfurizing tower
30th, fine de-sulfur tower 311, deduster 301, Marsh gas compression machine 302, temperature-exchanger 303, unstripped gas surge tank 401, accurate filter
402nd, the first decarburization mechanism 40, the second decarburization mechanism 41, product gas surge tank 403, odorization machine 501 and gas distributing system 5.
【Embodiment】
The utility model is described in further detail below in conjunction with the accompanying drawings.
This kind of desulfurization regeneration system includes desulfurizing tower 1, rich solution groove 101, rich solution pump 102, regeneration tank 110, foam tank
120th, foam pump 121, sulfur melting kettle 122, solid-liquid separator 123, lean liquid tank 130, filter pump 131, hydraulic pressure chamber-type press filter 132,
Lye tank (vat) 140, lye pump 141, gas-liquid separator 150；The bottom of desulfurizing tower 1 is provided with doctor solution outlet and doctor solution entrance, desulfurization
Liquid outlet exports through doctor solution by reacted doctor solution in rich solution groove 101 and flows into rich solution groove 101, rich solution groove 101 is used
Doctor solution after desulfurization is stored, rich solution groove 101 are communicated in regeneration tank 110 by rich solution pump 102, and rich solution pump 102 is by rich solution groove
101 doctor solution is pumped into regeneration tank 110.
Regeneration tank 110 is regenerated (2NaHS+O using chemical regeneration method to doctor solution2=2S+2NaOH and NaOH+
NaHCO3=Na2CO3+H2O), regeneration tank 110 is that progress chemical regeneration reaction, regeneration tank 110 are provided with the presence of catalyst
Sulphur foam outlet and regenerated liquid outlet；By regenerated liquid caused by regenerative response hydraulic pressure van-type press filtration is flowed into by regenerated liquid outlet
Machine 132, regenerated liquid outlet are communicated in hydraulic pressure chamber-type press filter 132 by filter pump 131, and hydraulic pressure chamber-type press filter 132 may filter that again
Solid particulate matter in raw liquid, obtains pure regenerative sulfur binding liquid, is then recycled to lean liquid tank 130.
On float on the sulphur foam of regeneration tank 110 and flow to foam tank 120 through sulphur foam outlet.Foam tank 120 be used for store from
The sulphur foam that regeneration tank 110 flows out, foam pump 121 are located at foam tank 120, and sulfur foam pressurization is transported into solid-liquid separator
123.Solid-liquid separator 123 is provided with screening outlet and filtrate port, and the liquid that solid-liquid separator 123 mixes sulphur with sulphur is carried out
Separation draws sulphur cream and filtrate, and solid-liquid separator 123 connects with sulfur melting kettle 122, and sulphur cream enters sulfur melting kettle 122 from screening outlet and melted
Refining obtains sulphur, and the filtrate isolated is recycled to lean liquid tank 130 from filtrate port.
The delivery outlet of lean liquid tank 130 is communicated in the bottom of desulfurizing tower 1, and the doctor solution after regeneration flows into by lye pump 141
Desulfurization is re-started to desulfurizing tower 1.Lye tank (vat) 140 is located between lean liquid tank 130 and desulfurizing tower 1, and lye tank (vat) 140 contains not once
The new doctor solution of desulfurization is crossed, when the regenerative sulfur binding liquid concentration in lean liquid tank 130 is not enough to carry out desulfurization, lye tank (vat) 140 passes through
New doctor solution is sent into the doctor solution entrance of desulfurizing tower 1 by lye pump 141, and new doctor solution is carried out together with regenerative sulfur binding liquid to biogas
Desulfurization process.
Fig. 2 methane purification system combines a kind of desulfurization regeneration system of the present utility model, the methane purification system
Including storage gas tank 2, booster fan 201, the valve 202 that reduces internal heat, gas-liquid separator 250, thick desulfurizing tower 30, fine de-sulfur tower 31, remove
Dirt device 301, Marsh gas compression machine 302, temperature-exchanger 303, unstripped gas surge tank 401, accurate filter 402, the first decarburization mechanism 40,
Second decarburization mechanism 41, product gas surge tank 403, odorization machine 501 and gas distributing system 5；Biogas after Anaerobic Treatment leads to
Piping is delivered to storage gas tank 2 and stored, and storage gas tank 2 is communicated in thick desulfurizing tower 30, and booster fan 101 is located at storage gas
The gas outlet of tank 2, the tolerance conveying of booster fan 201 and gas is controlled to move towards using the volume and outlet pressure for storing gas tank 2
To thick desulfurizing tower 30；The valve 202 that reduces internal heat is located at the delivery outlet of booster fan 201, when biogas pressure is less than or more than certain in pipeline
Startup is reduced internal heat after one numerical value and valve 202 and then biogas is subjected to torch burning, ensures system safety.
Thick desulfurizing tower 30 divide for the thick desulfurizing tower of one-level and the thick desulfurizing tower of two level, the thick desulfurizing tower of one-level and the thick desulfurizing tower of two level it is equal
Using wet chemical sulfur removal technology, by being sent into doctor solution (alkali lye) and the hydrogen sulfide in biogas toward thick desulfurizing tower 30
Learn reaction removal of hydrogen sulfide (H2S+Na2CO3=NaHS+NaHCO3), biogas is sent into first grade desulfurizing by the pressurization of booster fan 201
Tower bottom, two-grade desulfurizing tower bottom is discharged into after contacting and reacting with doctor solution from first grade desulfurizing column overhead, and gas exists
Contacted again with doctor solution in the middle part of two-grade desulfurizing tower react further removing hydrogen sulfide to after below 100ppm from tower top row
Go out to enter gas-liquid separator 250.Gas-liquid separator 250 is separated the biogas after thick desulfurization with carrying liquid therein secretly, is allowed
Biogas after thick desulfurization becomes to be discharged into fine de-sulfur tower 31 after drying, to meet requirement of the fine de-sulfur tower 31 to biogas moisture.Essence is de-
Sulphur tower 31 uses iron oxide dry desulfurizing process, will be gaseous sulfiding in biogas by adding solid desulfurating agent in fine de-sulfur tower
Thing is converted into solid sulfide；Biogas enters the bottom of fine de-sulfur tower 31, is occurred by hydrogen sulfide during desulfurizing agent bed and desulfurizing agent
Reaction, so as to remove the hydrogen sulfide in sulphur gas to below 10ppm；Fine de-sulfur tower 31 is provided with one-level fine de-sulfur tower and two level essence is de-
Sulphur tower, it can connect also in parallel；It can work independently, can also work together.Deduster 301 is located at the gas outlet of fine de-sulfur tower 31,
Unstripped gas after fine de-sulfur enters deduster 301 and separates bulky grain solid impurity.
The outlet of deduster 301 is provided with 3 Marsh gas compression machines altogether in Marsh gas compression machine 302, methane purification system
302, set up more Marsh gas compression machines 302 and be compressed and be forced into 0.8MPa, natural pond should be made to improve the phenomenon of biogas pressure deficiency
Gas burning is more abundant, and firepower is bigger；0.8MPa be adapted to methane decarbonization system of the present utility model decarburization pressure, Marsh gas compression
The gas outlet of machine 302 is communicated in temperature-exchanger 303, and the unstripped gas after compression is carried out cooling processing by temperature-exchanger 303, after cooling processing
Unstripped gas enter unstripped gas surge tank 401, unstripped gas 401 can accurate filter 402, accurate filter 402 is provided with multiple filters
Core, multiple filter cores can filter out different types of minute impurities, and the gas outlet of accurate filter 402 is connected on decarburization mechanism, warp
Gas outlet of the unstripped gas crossed after secondary filter impurity through accurate filter 402 flows into decarburization mechanism.Decarburization mechanism uses transformation
(PSA) technique is adsorbed, decarburization mechanism includes the first decarbonization system 40 and the system of the second decarbonization system 41, and the first decarburization mechanism 40 is set
Have several unstripped gas decarbonizing towers, using decarbonizing tower selective absorption gas with various principle and adsorb measurer at various pressures
The principle for having larger difference is operated, and each unstripped gas decarbonizing tower is sequentially communicated, and the unstripped gas that Marsh gas compression machine 302 is discharged enters
Enter the first decarburization mechanism 40 and carry out thick decarburization, unstripped gas decarbonizing tower adsorbs the carbon dioxide in a large amount of biogas；Second decarburization mechanism
41 are provided with several semi-finished product gas decarbonization towers, and each semi-finished product gas decarbonization tower is sequentially communicated, and biogas is from the bottom of unstripped gas decarbonizing tower
Portion enters the second decarburization mechanism 41 and carries out fine decarbonization, and semi-finished product gas decarbonization tower adsorbs remaining carbon dioxide in biogas, by essence
Natural gas after de- tower flows into odorization machine 501 from the gas outlet of the second decarburization mechanism.Natural gas not to be adsorbed flows into odorization machine
501, odorization machine 501 is located at the air inlet of gas distributing system 5, and odorization machine 501 has penetrating odor containing fragrant wait of tetrahydrochysene three
Safe gas, with pure natural gas is added it is volatilizable go out stink gas, remind the leakage of user's combustion gas.
Embodiment above simply indicates that rather than limited the utility model, therefore all according to the utility model patent application
The equivalent change or modification that method described in scope is done, it is included in the utility model patent application range.
Claims (6)
- A kind of 1. desulfurization regeneration system, it is characterised in that：This kind of desulfurization regeneration system includes desulfurizing tower, lean liquid tank, rich solution Groove, foam tank, regeneration tank, hydraulic pressure chamber-type press filter and solid-liquid separator；Desulfurizing tower, rich solution groove and regeneration tank are sequentially communicated；Again Raw groove connects with foam tank and hydraulic pressure chamber-type press filter respectively, and hydraulic pressure chamber-type press filter connects with lean liquid tank；Foam tank is communicated in Solid-liquid separator, solid-liquid separator is provided with filtrate port and screening exports, and the filtrate port of solid-liquid separator is communicated in lean liquid tank, lean solution Groove is communicated in regeneration tank.
- A kind of 2. desulfurization regeneration system according to claim 1, it is characterised in that：This kind of desulfurization regeneration system is also wrapped The lye tank (vat) containing the doctor solution without using is included, lye tank (vat) connects with desulfurizing tower.
- A kind of 3. desulfurization regeneration system according to claim 1, it is characterised in that：This kind of desulfurization regeneration system is also wrapped Sulfur melting kettle is included, sulfur melting kettle exports located at the screening of solid-liquid separator.
- A kind of 4. desulfurization regeneration system according to claim 1, it is characterised in that：This kind of desulfurization regeneration system is also wrapped Gas-liquid separator is included, gas-liquid separator is located at the gas outlet of desulfurizing tower.
- A kind of 5. desulfurization regeneration system according to claim 1, it is characterised in that：The richness of this kind of desulfurization regeneration system Between liquid bath and regeneration tank, between regeneration tank and foam tank, between regeneration tank and hydraulic pressure chamber-type press filter and lean liquid tank and regeneration Vavuum pump is equipped between groove.
- A kind of 6. desulfurization regeneration system according to claim 2, it is characterised in that：The alkali of this kind of desulfurization regeneration system Vavuum pump is provided between liquid bath and regeneration tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720515653.2U CN206793412U (en) | 2017-05-10 | 2017-05-10 | A kind of desulfurization regeneration system |
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| CN201720515653.2U CN206793412U (en) | 2017-05-10 | 2017-05-10 | A kind of desulfurization regeneration system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211750A (en) * | 2018-03-28 | 2018-06-29 | 昆山金宏二氧化碳有限公司 | The desulfurizer and method of a kind of purifying carbon dioxide |
| CN109777545A (en) * | 2019-03-21 | 2019-05-21 | 青岛中海环境工程有限公司 | A kind of biogas desulfurization system and sulfur method |
| CN111001294A (en) * | 2019-12-17 | 2020-04-14 | 西安润川环保科技有限公司 | Energy-saving regeneration process method used in wet oxidation desulfurization process |
| CN114292672A (en) * | 2021-12-27 | 2022-04-08 | 湖南金牛化工有限公司 | Variable-pressure wet desulphurization process for high-sulfur-content gas |
| CN114643230A (en) * | 2022-04-25 | 2022-06-21 | 宝武集团鄂城钢铁有限公司 | Method for cleaning cofferdam of desulfurization regeneration tower |
-
2017
- 2017-05-10 CN CN201720515653.2U patent/CN206793412U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211750A (en) * | 2018-03-28 | 2018-06-29 | 昆山金宏二氧化碳有限公司 | The desulfurizer and method of a kind of purifying carbon dioxide |
| CN109777545A (en) * | 2019-03-21 | 2019-05-21 | 青岛中海环境工程有限公司 | A kind of biogas desulfurization system and sulfur method |
| CN111001294A (en) * | 2019-12-17 | 2020-04-14 | 西安润川环保科技有限公司 | Energy-saving regeneration process method used in wet oxidation desulfurization process |
| CN114292672A (en) * | 2021-12-27 | 2022-04-08 | 湖南金牛化工有限公司 | Variable-pressure wet desulphurization process for high-sulfur-content gas |
| CN114643230A (en) * | 2022-04-25 | 2022-06-21 | 宝武集团鄂城钢铁有限公司 | Method for cleaning cofferdam of desulfurization regeneration tower |
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