CN107760401A - A kind of bio-desulfurization device - Google Patents
A kind of bio-desulfurization device Download PDFInfo
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- CN107760401A CN107760401A CN201610689467.0A CN201610689467A CN107760401A CN 107760401 A CN107760401 A CN 107760401A CN 201610689467 A CN201610689467 A CN 201610689467A CN 107760401 A CN107760401 A CN 107760401A
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- Prior art keywords
- desulfurizing tower
- desulfurization
- pipeline
- air
- outlet pipe
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a kind of bio-desulfurization device, including desulfurizing tower, desulfurization pipeline, air inlet pipeline, outlet pipe and nutrition liquid pipeline, the desulfurizing tower bottom passes through desulfurization pipeline connection to desulfurizing tower top, the desulfurization pipeline is provided with circulating pump and motor-driven valve, and one end that desulfurization pipeline is located at the top of desulfurizing tower is provided with shower nozzle；The desulfurizing tower bottom and top are also respectively connected with air inlet pipeline and outlet pipe, and the air intake management connects air intlet and biogas import simultaneously；Beneficial effect is caused by the present invention：The present invention is lower for a kind of operating cost it can be seen from above concrete technology, and desulphurizing ability is stronger, stable, safe biological desulfurization process；Air injects ratio and controls and adjust by PLC, frequency conversion fan, injection ratio can be according to system inlets concentration of hydrogen sulfide and outlet oxygen concentration adjustment, both demand of the sweetening process to oxygen had been can guarantee that, and can enough ensures that excessive air will not be injected unstripped gas by blower fan.
Description
Technical field
The present invention relates to a kind of biogas, biogas desulfurizer, specially a kind of bio-desulfurization device.
Background technology
Caused biogas, which can be used for generating electricity or purify, in anerobic sowage technique produces natural gas, but wherein hydrogen sulfide meeting
Heavy corrosion conveyance conduit and equipment, therefore hydrogen sulfide therein must be removed before using gas.
Bioanalysis is one with emerging sulfur removal technology, and more traditional dry and wet sulfur removal technology, its remarkable advantage is fortune
Row cost is very low, but biological desulphurization has that control condition requires harsh, desulfuration efficiency is unstable, biological sludge is not easy clearly
The problems such as reason, limit the popularization and application of the technique.
Patent CN101597529B discloses a kind of " methane bio-desulfurization device ", and its technological process approximation conventional wet takes off
Sulphur, it is more complicated comprising device, technological processes such as desulfurizing tower, lean liquid tank, rich solution groove, regeneration tank, subsiders.Desulfurization in the device
Liquid is alkalescent, and to prevent it to be acidified, it is necessary to which adding alkali lye adjusts pH, operating cost is of a relatively high.Patent CN201817453U
A kind of " outer aeration biological desulfuration device for marsh gas " is disclosed, its absorbing liquid is introduced into the reaction water tank outside desulfurizing tower, by gas explosion
Desulfurizing tower is reinjected after regeneration, but is regenerated using outer aeration mode, desulphurizing ability is limited, and desulfuration efficiency is unstable, system air inlet
Middle hydrogen sulfide content is limited to 200~5000ppm.And use clear water high as process water, operating cost in the device.
The content of the invention
The problem of existing for existing bio-desulfurization device, it is an object of the invention to provide a kind of operating cost is lower,
Desulphurizing ability is stronger, stable, safe bio-desulfurization device.
The technical solution adopted for the present invention to solve the technical problems is a kind of bio-desulfurization device, including desulfurizing tower, de-
Sulphur pipeline, air inlet pipeline, outlet pipe and nutrition liquid pipeline, the desulfurizing tower bottom pass through desulfurization pipeline connection to desulfurization tower top
Portion, the desulfurization pipeline are provided with circulating pump and motor-driven valve, and one end that desulfurization pipeline is located at the top of desulfurizing tower is provided with shower nozzle；It is described
Desulfurizing tower bottom and top are also respectively connected with air inlet pipeline and outlet pipe, and the air intake management connects air intlet and natural pond simultaneously
Gas import, frequency conversion fan and motor-driven valve is provided with the air intlet, the biogas entrance is provided with flowmeter；The escape pipe
Road is provided with oxygen concentration detector；The nutrition liquid pipeline is provided with moisturizing processing system, and the moisturizing processing system includes
Replenisher tank one and replenisher tank two；
The middle part and bottom of the desulfurizing tower further respectively have temperature sensor and liquid level gauge.
Use the present invention specific sulfur removal technology for：
Doctor solution is squeezed at the top of desulfurizing tower using circulating pump, doctor solution spray is arrived into filler surface through shower nozzle, to keep filler
Surface wettability；At desulfurizing tower air inlet, air proportion is injected into the raw material biogas containing hydrogen sulfide by frequency conversion fan, shape
Into mixed gas；Mixed gas is after packing layer, and the biomembrane on the filled surface of hydrogen sulfide therein absorbs, the gas after purification
Body is exported from desulfurizing tower and discharged, so as to complete desulfurization.
The filler can be divided into one layer or multilayer filling, packing support be got up using grid and section bar, so as to de-
Sulphur tower bottom forms space to store doctor solution；
The nutrient solution configured is added in desulfurizing tower by fluid infusion pump or overflow manner, is that the desulfurizing bacteria in doctor solution carries
Water supply point and nutritional ingredient；And pass through motor-driven valve time opening, regular discharge doctor solution and Additional nutrient solution.
The nutrient solution dissolves the medicament configuration of nitrogenous phosphorus potassium element using lysate；
The lysate can be softened water；
The lysate can also be clear water, sedimentation basin water outlet either anaerobic digestion solution come substitute or part substitute softened water,
So as to reduce operating cost.
If the COD of the water quality such as clear water, sedimentation basin water outlet, anaerobic digestion solution, calcium ions and magnesium ions content, suspended contamination content compared with
Height, moisture and nutrition directly are provided for bacterium without processing, sulfate caused by bioprocesses can be anti-with above material
Sediment should be generated, so as to form a large amount of sludge in desulfurizing tower, causes stifled tower.To avoid stifled tower, moisturizing processing system need to be utilized
The liquid such as clear water, sedimentation basin water outlet, anaerobic digestion solution are pre-processed.Above liquid passes through at replenisher tank one and replenisher tank two
After reason, the content of its impurity reduces.
The air injection ratio, the addition for starting time and nutrient solution of circulating pump are all by PLC control completions, tool
Body numerical value is set after technology Calculation, both can guarantee that desulfotomaculum bacteria needs, and and can avoids excessively bringing waste.Desulfurizing tower gas
Outlet need to install oxygen concentration detector, and whether oxygen concentration is in safe range in detection outlet biogas.
Beneficial effect is caused by the present invention：The present invention is a kind of operating cost it can be seen from above concrete technology
Lower, desulphurizing ability is stronger, stable, safe biological desulfurization process；
Air injects ratio and controlled by PLC, frequency conversion fan and adjustment, injection ratio can according to system inlets concentration of hydrogen sulfide and
Oxygen concentration adjustment is exported, both can guarantee that demand of the sweetening process to oxygen, and can enough ensures that blower fan will not be by excessive air
Inject unstripped gas.
Brief description of the drawings
Fig. 1 is the process structure schematic diagram of the present invention
Fig. 2 is inventive desulfurization design sketch
In figure, 1, desulfurizing tower 2, circulating pump 3, motor-driven valve 4, temperature sensor 5, liquid level gauge 6, frequency conversion fan 7, flowmeter
8th, oxygen concentration detector 9, replenisher tank 1, replenisher tank two.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in figure 1, a kind of bio-desulfurization device, including desulfurizing tower 1, desulfurization pipeline, air inlet pipeline, outlet pipe and battalion
Nutrient solution pipeline, the bottom of desulfurizing tower 1 are provided with circulating pump by desulfurization pipeline connection to desulfurizing tower top, the desulfurization pipeline
2 and motor-driven valve 3, one end that desulfurization pipeline is located at the top of desulfurizing tower be provided with shower nozzle；The desulfurizing tower bottom and top also connect respectively
Air pipe and outlet pipe are tapped into, the air intake management connects air intlet and biogas import, set at the air intlet simultaneously
There are frequency conversion fan 6 and motor-driven valve 3, the biogas entrance is provided with flowmeter 7；The outlet pipe detects provided with oxygen concentration
Device 8；The nutrition liquid pipeline is provided with moisturizing processing system, and the moisturizing processing system includes replenisher tank 1 and replenisher tank two
10；
The middle part and bottom of the desulfurizing tower further respectively have temperature sensor 4 and liquid level gauge 5.
Using the sulfur removal technology of the present invention, doctor solution is squeezed into the top of desulfurizing tower 1 using circulating pump 2, through shower nozzle by desulfurization
Liquid spray arrives filler surface, to keep filler surface wettability；The tank body material of desulfurizing tower 1 is using fiberglass or containing interior corrosion-resistant steel
Material is made；At the air inlet of desulfurizing tower 1, air proportion is injected into the raw material biogas containing hydrogen sulfide by frequency conversion fan 6
In, form mixed gas；Mixed gas is after packing layer, and the biomembrane on the filled surface of hydrogen sulfide therein absorbs, purification
Gas afterwards is exported from desulfurizing tower 1 and discharged, so as to complete desulfurization.
The filler is blossom type filler, can be divided into one layer or multilayer filling, filler are supported by glass-fiber reinforced plastic grille
Come, supporting pillar is using glass fiber reinforced plastic shapes or containing outer corrosion-resistant shaped steel or steel pipe, so as to form space in the bottom of desulfurizing tower 1 to deposit
Doctor solution is stored up, and liquid level gauge 5 is set in desulfurization tower bottom, detects doctor solution liquid level；
The nutrient solution configured is added in desulfurizing tower 1 by fluid infusion pump or overflow manner, is the desulfurizing bacteria in doctor solution
Moisture and nutritional ingredient are provided；And pass through the time opening of motor-driven valve 3, regular discharge doctor solution and Additional nutrient solution.
The nutrient solution dissolves the medicament configuration of nitrogenous phosphorus potassium element using process water；
In the nutrient solution, nitrogen content is 4~16%, and phosphorus content is 0.4~4.8%, potassium content 0.1~3.9%.
The process water can be softened water；The process water can also be clear water, sedimentation basin water outlet or anaerobism
Digestive juice come substitute or part substitute softened water, so as to reduce operating cost.
If the COD of the water quality such as clear water, sedimentation basin water outlet, anaerobic digestion solution, calcium ions and magnesium ions content, suspended contamination content compared with
Height, moisture and nutrition directly are provided for bacterium without processing, sulfate caused by bioprocesses can be anti-with above material
Sediment should be generated, so as to form a large amount of sludge in desulfurizing tower 1, causes stifled tower.To avoid stifled tower, moisturizing processing system need to be utilized
The liquid such as clear water, sedimentation basin water outlet, anaerobic digestion solution are pre-processed, replenisher tank of the above liquid Jing Guo moisturizing processing system
One 9 and after replenisher tank 2 10 handles, the content of its impurity reduces.
The doctor solution temperature range is 28 DEG C~35 DEG C；Desulfurizing tower is provided with temperature sensor 4, is equipped with pipe-line system
Heat exchanger, heated when system temperature is less than setting value for doctor solution.
Doctor solution pH scopes：0.5~5.Using different process water, doctor solution pH is different, is specially：Using clear water or soft
Change water, doctor solution pH is 0.5~2, and during using sedimentation basin water outlet or anaerobic digestion solution, doctor solution pH is 2.5~5.5.
Air injection ratio, the startup time of circulating pump 2 and the addition of nutrient solution are all controlled by PLC and completed,
Detection air concrete numerical value is set after technology Calculation, both can guarantee that desulfotomaculum bacteria needs, and and can avoids excessively bringing waste.
The gas vent of desulfurizing tower 1 need to install oxygen concentration detector 8, and whether oxygen concentration is in safe range in detection outlet biogas；
The gas vent oxygen content of desulfurizing tower 1 is controlled 0.5~2.0%；
Raw material biogas porch is provided with flowmeter 7；
This sulfur removal technology is also equipped with filler Rapid Cleaning system.
When system is run for the first time, appropriate Thiobacillus strain mother liquor is added；When growth conditions is suitable, bacterium can be with every 2
The speed in 1 generation of breeding hour increases in geometry multiple, and the desulfuration efficiency of design requirement can be can reach in 1~2 day.
Certain paper mill uses this biological desulfurization process system, and design biogas tolerance is 820m3/ h, concentration of hydrogen sulfide are
12500ppm, it is placed in series using two desulfurizing towers, biogas passes through two desulfurizing towers successively, and hydrogen sulfide is down to 200ppm.
The system log is illustrated in figure 2, top square curve is biogas tolerance, and bottom trigonometric curve goes out for system
Mouth hydrogen sulfide content.Concentration of hydrogen sulfide in detecting system air inlet biogas is 12000ppm, and biogas tolerance maintains 580m3/h
~620m3/ h, the concentration of hydrogen sulfide of desulphurization system outlet can be stablized in below 200ppm, and desulfuration efficiency is up to more than 98%.
The present invention is not limited to the above-described embodiments, and anyone should learn the structure change institute made in the case where the present invention enlightens
The same or like technical scheme drawn, each falls within protection scope of the present invention.
The present invention be not described in detail technology, shape, construction part be known technology.
Claims (2)
1. a kind of bio-desulfurization device, it is characterised in that including desulfurizing tower, desulfurization pipeline, air inlet pipeline, outlet pipe and nutrition
Liquid pipeline, the desulfurizing tower bottom by desulfurization pipeline connection at the top of desulfurizing tower, the desulfurization pipeline be provided with circulating pump and
Motor-driven valve, one end that desulfurization pipeline is located at the top of desulfurizing tower are provided with shower nozzle；The desulfurizing tower bottom and top be also respectively connected with into
Air pipe and outlet pipe, the air intake management connect air intlet and biogas import, are provided with and become at the air intlet simultaneously
Frequency blower fan and motor-driven valve, the biogas entrance are provided with flowmeter；The outlet pipe is provided with oxygen concentration detector；It is described
Nutrition liquid pipeline is provided with moisturizing processing system, and the moisturizing processing system includes replenisher tank one and replenisher tank two.
2. bio-desulfurization device as claimed in claim 1, it is characterised in that the middle part and bottom of the desulfurizing tower are also set respectively
There are temperature sensor and liquid level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610689467.0A CN107760401A (en) | 2016-08-19 | 2016-08-19 | A kind of bio-desulfurization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610689467.0A CN107760401A (en) | 2016-08-19 | 2016-08-19 | A kind of bio-desulfurization device |
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| Publication Number | Publication Date |
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| CN107760401A true CN107760401A (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610689467.0A Pending CN107760401A (en) | 2016-08-19 | 2016-08-19 | A kind of bio-desulfurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421400A (en) * | 2018-05-18 | 2018-08-21 | 华夏碧水环保科技有限公司 | It is a kind of can on-line regeneration biogas dry desulfurization device and its sulfur method |
-
2016
- 2016-08-19 CN CN201610689467.0A patent/CN107760401A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421400A (en) * | 2018-05-18 | 2018-08-21 | 华夏碧水环保科技有限公司 | It is a kind of can on-line regeneration biogas dry desulfurization device and its sulfur method |
| CN108421400B (en) * | 2018-05-18 | 2020-11-20 | 华夏碧水环保科技有限公司 | Online-regeneration biogas dry-method desulfurization device and desulfurization method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |
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| WD01 | Invention patent application deemed withdrawn after publication |