CN208883804U - A kind of biogas in-line purification device - Google Patents
A kind of biogas in-line purification device Download PDFInfo
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- CN208883804U CN208883804U CN201821526958.4U CN201821526958U CN208883804U CN 208883804 U CN208883804 U CN 208883804U CN 201821526958 U CN201821526958 U CN 201821526958U CN 208883804 U CN208883804 U CN 208883804U
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- carbon dioxide
- biogas
- tower
- purification device
- line purification
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a kind of biogas in-line purification devices, it includes anaerobic reactor (1) and carbon dioxide tower (2), anaerobic reactor (1) lower part is connected to the top of the carbon dioxide tower (2) through inlet tube (3), the lower part of the carbon dioxide tower (2) is connected to the top of the anaerobic reactor (1) through outlet tube (4), the outlet tube (4) is equipped with circulating pump (5), the top of the carbon dioxide tower (2) is additionally provided with exhaust emission tube (8) so that the exhaust gas after desorbing carbon dioxide is discharged.Biogas in-line purification device provided by the utility model can remove the carbon dioxide generated during anaerobic reaction, improve the purity of biogas, while improving anaerobic reaction effluent quality.
Description
Technical field
The utility model relates to technical field of waste water processing, in particular to a kind of biogas in-line purification device.
Background technique
Now, energy conservation and environmental protection theory becomes more and more popular, and biogas is increasingly subject to as a kind of renewable, green energy resource
Everybody attention.A kind of product of the biogas as anaerobic fermentation, main component be methane, carbon dioxide, hydrogen sulfide, nitrogen,
Moisture etc., wherein methane accounting 55%~65%, the presence of carbon dioxide 30~40%, carbon dioxide reduce the heat of biogas
Value, reduces its use value.In the higher occasion of requirement, such as: marsh gas power generation, as natural gas etc. requires pair
Biogas carries out decarburization, improves methane content of bilogas to 85% or more.
Decarburization (carbon dioxide) is carried out to biogas at present, usually after anaerobic fermentation generates biogas, biogas is delivered to
Another place specially carries out decarburization using decarbonization device.The method of decarburization mainly has physics and chemical method.
Physical method mainly has pressure-variable adsorption, pressurization to wash, amine liquid washs and measures, the chemical methodes such as UF membrane are mainly
Using absorbent by carbon dioxide absorption.
Decarburization is carried out to biogas using physics or chemical method, has energy consumption high, operational administrative is complicated, and operating cost is high
The disadvantages of, and dystopy Methane decarbonization is carried out, the construction of biogas conveyance conduit and operating cost can be increased.
Utility model content
The utility model aim is to provide a kind of biogas in-line purification device, for removing generate in anaerobic reactor two
Carbonoxide improves biogas purity.
Based on the above issues, technical solution provided by the utility model is:
A kind of biogas in-line purification device comprising anaerobic reactor and carbon dioxide tower, the anaerobic reactor
Lower part is connected to the top of the carbon dioxide tower through inlet tube, and the lower part of the carbon dioxide tower connects through outlet tube
It is connected to the top of the anaerobic reactor, the outlet tube is equipped with circulating pump, and the top of the carbon dioxide tower is also set
There is exhaust emission tube so that the exhaust gas after desorption carbon dioxide is discharged.
In some embodiments wherein, the inlet tube is from 15~20 meters at the top of the anaerobic reactor, mixed liquor
It is flow in the carbon dioxide tower certainly through the inlet tube.
In some embodiments wherein, the lower part of the carbon dioxide tower is connected with air intake duct, described
Air intake duct is equipped with blower, with being passed through air in the previous carbon dioxide tower.
In some embodiments wherein, the outlet tube be equipped with oxidation-reduction potential monitor, to control into
Enter the air capacity of the carbon dioxide tower.
In some embodiments wherein, the lower part of the carbon dioxide tower is equipped with heat source import, with previous institute
It states in carbon dioxide tower and is passed through heat source.
In some embodiments wherein, the outlet tube is equipped with temperature monitor, to control heat source temperature.
In some embodiments wherein, the exhaust emission tube is equipped with emission-control equipment.
Compared with prior art, the utility model has the advantages that:
1, using the technical solution of the utility model, which can remove the carbon dioxide generated during anaerobic reaction,
Biogas purity is improved, the construction of biogas conveyance conduit and operating cost are reduced, while after Methane decarbonization, reduction is dissolved in dioxy in waste water
The amount for changing carbon improves the pH of waste water, increases reactor to impact resistance sour in water inlet, improves the steady of anaerobic reactor operation
It is qualitative；
2, using the technical solution of the utility model, while there is air lift, heating and decompression three kinds of effects of desorption, titanium dioxide
Carbon and hydrogen sulfide stripping rate are high；
3, using the technical solution of the utility model, anaerobic reactor is both biogas generator and carbon dioxide absorption
Tower does not add carbon dioxide absorption medicament, operating cost is low without additional mating absorption unit of dioxide carbon；
4, using the technical solution of the utility model, after carbon dioxide, first in the biogas of anaerobic reactor discharge
Alkane content is 85% or more, and calorific value is high, and hydrogen sulfide content is low, and biogas quality is high, can be directly used for marsh gas power generation or as low
Quality natural gas motorcar saves use cost；
5, using the technical solution of the utility model, the carbon dioxide in biogas is removed online, biogas can be saved
Conveyance conduit construction cost can also remove hydrogen sulfide while removing removing carbon dioxide, reduce anaerobic reactor and subsequent place
Manage the corrosion of equipment；
6, using the technical solution of the utility model, sludge removes the gas of its carrying through desorber in mixed liquor, close
Degree increases, and settling property improves, and anaerobic reactor water outlet carries sludge quantity and reduces, and effluent quality improves, the operation of simultaneous reactions device
Stability improves.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, and the drawings in the following description are merely some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structural schematic diagram of biogas in-line purification Installation practice of the utility model；
Wherein:
1, anaerobic reactor 2, carbon dioxide tower 3, inlet tube 4, outlet tube 5, circulating pump 6, oxidation-reduction potential prison
Survey instrument 7, temperature monitor 8, exhaust emission tube 9, air intake duct 10, blower 11, heat source import 12, emission-control equipment.
Specific embodiment
Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The utility model and be not limited to limitation the scope of the utility model.Implementation condition used in the examples can be according to specific producer
Condition do further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Referring to Fig. 1, it is the structural schematic diagram of the utility model embodiment, a kind of biogas in-line purification device is provided, including
Anaerobic reactor 1 and carbon dioxide tower 2,1 lower part of anaerobic reactor are connected to carbon dioxide tower 2 through inlet tube 3
The muddy water mixed solution on top, 1 lower part of anaerobic reactor is flow in carbon dioxide tower 2 certainly, the lower part of carbon dioxide tower 2
It is connected to the top of anaerobic reactor 1 through outlet tube 4, circulating pump 5 is equipped on outlet tube 4, passes through circulating pump 5 and outlet tube 4
Mixed liquor after desorbing carbon dioxide is back to anaerobic reactor 1, is discharged on the top of carbon dioxide tower 2 equipped with exhaust gas
Pipe 8 is to be discharged the exhaust gas after desorbing carbon dioxide.Mixed liquor is longer in 2 residence time of carbon dioxide tower, carbon dioxide de
Except effect is better, by adjusting the flow of circulating pump 5, residence time of the mixed liquor in desorber is adjusted.In this example, titanium dioxide
Carbon desorber 2 is the prior art, and the utility model repeats no more, and packed tower, bubble tower and sieve-plate tower etc. can be used.
In this example, inlet tube 3 apart from 15~20 meters of the top of anaerobic reactor 1, this height mixed liquor pressure bearing is 1.5~
2.0 kilograms of atmospheric pressure, at this pressure, the solubility of carbon dioxide in water are 1.5~2.0 times under normal pressure, from the height
It is back in normal pressure desorber, there is decompression desorption.
It is connected with air intake duct 9 in the lower part of carbon dioxide tower 2, air intake duct 9 is equipped with blower 10, to
It is passed through air in carbon dioxide tower 2, is passed through air in carbon dioxide tower 2, has the function of air lift desorption, gas
The air capacity of offer is bigger, and carbon dioxide eliminating effect is better.
For the ease of the oxygen content in control anaerobic reactor 1, oxidation-reduction potential monitor 6 is equipped on outlet tube 4,
When oxidation-reduction potential is more than certain value, 10 air quantity of blower is reduced.
In order to advanced optimize the implementation result of the utility model, the lower part of carbon dioxide tower 2 be equipped with heat source into
Mouth 11, with heat source, such as hot wind is passed through in previous carbon dioxide tower 2, is passed through heat source in carbon dioxide tower 2, has
There is heating desorption effect, temperature is higher, and carbon dioxide effect is better, and heat source import supplements certain heat, improves titanium dioxide
Carbon desorption effect, while can guarantee that the mixeding liquid temperature for being back to anaerobic reactor 1 does not reduce.
In order to control the temperature for being back to mixed liquor in anaerobic reactor 1, it is equipped with temperature monitor 7 on outlet tube 4, uses
To control heat source temperature, backflow mixed liquor is controlled at 35~39 DEG C.
In order to remove the exhaust gas after carbon dioxide, exhaust emission tube 8 is equipped with emission-control equipment 12, main to remove
The partial vulcanization hydrogen, ammonia, mercaptan etc. generated is desorbed, the devices such as absorption tower, adsorption tower can be used.Dissolution of the hydrogen sulfide in waste water
Therefore the solubility spent also above methane while carbon dioxide removal, can also remove partial vulcanization hydrogen.
After purification device processing, fire damp content is discharged 85% or more in anaerobic reactor 1.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personnel can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
It is all according to the spirit of the present invention substantially equivalent transformation that is done or modification, should all cover the protection scope of the utility model it
It is interior.
Claims (7)
1. a kind of biogas in-line purification device, it is characterised in that: including anaerobic reactor (1) and carbon dioxide tower (2), institute
State the top that anaerobic reactor (1) lower part is connected to the carbon dioxide tower (2) through inlet tube (3), the carbon dioxide
The lower part of desorber (2) is connected to the top of the anaerobic reactor (1) through outlet tube (4), and the outlet tube (4) is equipped with and follows
Ring pumps (5), after the top of the carbon dioxide tower (2) is additionally provided with exhaust emission tube (8) so that desorption carbon dioxide is discharged
Exhaust gas.
2. biogas in-line purification device according to claim 1, it is characterised in that: the inlet tube (3) is from the anaerobism
15~20 meters at the top of reactor (1), mixed liquor is flow in the carbon dioxide tower (2) certainly through the inlet tube (3).
3. biogas in-line purification device according to claim 1, it is characterised in that: the carbon dioxide tower (2)
Lower part is connected with air intake duct (9), and the air intake duct (9) is equipped with blower (10), with the previous carbon dioxide solution
It inhales in tower (2) and is passed through air.
4. biogas in-line purification device according to claim 3, it is characterised in that: the outlet tube (4) is equipped with oxidation
Reduction potential monitor (6), to control the air capacity into the carbon dioxide tower (2).
5. biogas in-line purification device according to claim 1, it is characterised in that: the carbon dioxide tower (2)
Lower part is equipped with heat source import (11), is passed through heat source with the previous carbon dioxide tower (2) is interior.
6. biogas in-line purification device according to claim 5, it is characterised in that: the outlet tube (4) is equipped with temperature
Monitor (7), to control heat source temperature.
7. biogas in-line purification device according to claim 1, it is characterised in that: the exhaust emission tube (8) is equipped with
Emission-control equipment (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821526958.4U CN208883804U (en) | 2018-09-18 | 2018-09-18 | A kind of biogas in-line purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821526958.4U CN208883804U (en) | 2018-09-18 | 2018-09-18 | A kind of biogas in-line purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208883804U true CN208883804U (en) | 2019-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821526958.4U Active CN208883804U (en) | 2018-09-18 | 2018-09-18 | A kind of biogas in-line purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208883804U (en) |
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2018
- 2018-09-18 CN CN201821526958.4U patent/CN208883804U/en active Active
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