CN108795714A - A kind of biogas Preparation equipment and its method - Google Patents
A kind of biogas Preparation equipment and its method Download PDFInfo
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- CN108795714A CN108795714A CN201710301850.9A CN201710301850A CN108795714A CN 108795714 A CN108795714 A CN 108795714A CN 201710301850 A CN201710301850 A CN 201710301850A CN 108795714 A CN108795714 A CN 108795714A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 230000018044 dehydration Effects 0.000 claims abstract description 66
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 66
- 238000000855 fermentation Methods 0.000 claims abstract description 59
- 238000003860 storage Methods 0.000 claims abstract description 40
- 230000004151 fermentation Effects 0.000 claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 22
- 230000023556 desulfurization Effects 0.000 claims abstract description 22
- 238000005262 decarbonization Methods 0.000 claims abstract description 16
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000010792 warming Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000007789 gas Substances 0.000 claims description 49
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 44
- 238000001914 filtration Methods 0.000 claims description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 14
- 239000012670 alkaline solution Substances 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 9
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 7
- 238000011534 incubation Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 239000010842 industrial wastewater Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 210000000998 shell membrane Anatomy 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- 239000002904 solvent Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- 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
- B01D53/26—Drying gases or vapours
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- 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
- B01D53/75—Multi-step processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/58—Reaction vessels connected in series or in parallel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/05—Biogas
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- 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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Y02P20/59—Biological synthesis; Biological 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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Abstract
The present invention proposes a kind of biogas Preparation equipment and its method, including biogas fermentation device, desulfurizer, decarbonization device and dehydration device, biogas fermentation device is connected to level-one entrance separator, stage compressor is connected to level-one entrance separator, split-compressor is connected to stage compressor, secondary inlet separator is connected to split-compressor, desulfurizer is connected to secondary inlet separator, decarbonization device, dehydration device is sequentially communicated with decarbonization device, biogas fermentation device includes pretreatment warming tank, level-one anaerobic fermentation gas production tank and B grade anaerobic fermentation aerogenesis tank, enhance the activity of anaerobic bacteria, so that raw material and anaerobic bacteria are uniformly mixed, biogas output amount is high；Desulfurizer coordinates desulfurization using dry and wet, and desulfurizing agent is connect by storage vat with desulfurizing tower, and it is convenient to replace, using two level dehydration package so that dehydration is more thorough.
Description
Technical field
The invention belongs to field of renewable energy technology, a kind of biogas Preparation equipment and its method are particularly related to.
Background technology
Energy and environmental problem has become two big outstanding problem of today's society, non-renewable energy resources increasingly reduce and at
In the case of this is increasingly raised, large and medium-sized biogas engineering is to solve one of the important means of energy and environmental problem.
All contain more insoluble solid in fermentation raw material used in most biogas engineering.For detesting containing solid material
Oxygen digestion techniques mixs unevenness with anaerobic species from the point of view of practice there are still material, high energy consumption, be discharged carry secretly strain sludge compared with
The problems such as more, seriously restricts the treatment effeciency of such anaerobic reactor；Secondly there are big after methane pool reverse has been answered for waste water etc.
Amount sludge etc. is inconvenient to clear, and some biogas are blended in material mud and can not rule out, and have in turn resulted in the wave of biogas
Take.
The ingredient of biogas generally has methane (CH4), carbon dioxide (CO2), oxygen (O2), nitrogen (N2), carbon monoxide
(CO), hydrogen (H2), water (H2) and hydrogen sulfide (H O2Other gases compositions such as S).It is flammable that the purifying process of biogas mainly retains its
With combustion-supporting components methane (CH4), oxygen (O2), carbon monoxide (CO) and hydrogen (H2), to the H in biogas2S, H2O, CO2With it is other
Impurity is removed.
Desulfurization is in order to avoid hydrogen sulfide (H2S) etching apparatus and pipeline, hydrogen sulfide is in methane fuelled engine and internal combustion engine
Bearing and some matching surfaces can be made to corrode, make the deterioration of lubricant of engine, to accelerate engine scuffing；And leakage
H2S can cause to be poisoned, and burn the product SO released2、SO3It is the arch-criminal for causing acid rain, compares H2It endangers caused by S and also wants
Greatly.It is more traditional in biogas desulfurization method to have two class of dry desulfurization and wet desulphurization, the dry desulfurization in industrial applications
Easy to operate, equipment investment is small, and outstanding advantages are degree of purification height, and can remove a variety of organic sulfur compounds, are suitable for scale
Small, biogas desulfurization when sulfur content is relatively low application, otherwise desulfurizing agent replace frequent, it is difficult to solve that sulphur, which cannot effectively recycle problem,
Such as iron oxide process, activated carbon method, sieve method.Wet desulphurization is with specific solvent and feed gas, and removing is therein
Hydrogen sulfide, the method are generally used for that treatment scale is big, the high thick desulfurization of sulfur content, but its that there is also Sulfur capacity is low, purify low precision
Disadvantage does not remove organic sulfur generally, applicable to have pressurization WATER-WASHING METHOD, Alkali absorption method, ferrous solution absorption process, tannin extract (tannin)
Method etc..In addition, novel biogas desulfurization technique also has the methods of UF membrane desulfurization and biological desulphurization, but operation and maintenance cost
Height, difficulty are big, not yet industrially universal extensive use.And in large-sized biogas industrial applications there are no a kind of big ability,
Precision is high, technique for applying at low cost and can recycling Sulphur ressource to greatest extent.
Remove CO in biogas2It is because of CO2Energy density, calorific value, the burning velocity of biogas are reduced, and increases biogas
Firing temperature just must be to it if biogas used needs to reach Natural gas standard or is used as motor vehicle fuel
In CO2It is removed.Decarbonization method in biogas is mainly liquid absorption method and solid absorption method, and liquid absorption method is divided into two
Major class：One kind is Physical Absorption method, that is, utilizes CO2This characteristic that certain liquid can be dissolved in isolates it from mixture
Come, different solvent absorption CO2Ability it is different, the purification degrees being finally reached are also different, but general all than chemical absorbing
Purification degrees are low.Another kind of is chemical absorption method, according to CO2It is the characteristic of sour gas, utilizes alkaline absorbent and CO2Changed
Reaction is learned to remove.Chemical absorption method can be by the CO in gas under less high pressure2It is refined to very high degree.But work as
When with chemical absorbing, just no longer has after chemical absorbent has reacted completely and absorb CO2Characteristic, so chemical absorbent
Absorbability is limited.CO is being removed using alkaline solution method2Technique in, gas is typically directly passed through alkaline solution
In, there are CO2Gas cannot cause carbon-drop rate relatively low effectively fully with alkaline solution contact problems；Meanwhile alkaline solution and
CO2Reaction, can reduce the concentration of alkaline solution, to make absorption efficiency reduce.
Biogas from anaerobic ferment devices output when, carry a large amount of moisture, especially in medium temperature or hot fermentation, biogas
With higher humidity.When the biogas of higher levels of humidity flows in pipeline, since the variation dew point of temperature, pressure reduces, water steams
Air cooling is solidifying to increase the resistance that biogas flows in pipeline, and the presence of vapor also reduces the calorific value of biogas, therefore needs
Condensed water in biogas is removed, currently, common biogas dewatering is dehydrated for gravitational method, cold partition method, solvent
Absorption process and solid-state physics water suction method, gravitational method dehydration are removed the part vapor in biogas with biogas gas-water separator,
This biogas gas-water separator mainly installs horizontal strainer and vertical strainer respectively up and down in tower, and the water in biogas is promoted to steam
Gas and biogas separation, but this device cannot simply and easily collect condensed water, need to additionally increase water collector equipment, increase into
This；Cold partition method is to cause temperature change using pressure energy variation, the method for making vapor be condensed out from gas phase, such dress
Pressurization or decompression processing, complicated and energy consumption need to be carried out by setting；Solvent absorption be using dehydrated solvent such as calcium chloride, lithium chloride and
Glycols absorb vapor, this method brings the possibility of other impurities into having to biogas while absorbing vapor, simultaneously
Regularly replace dehydrated solvent；Solid-state physics water suction method, which is adsorbed under surface of solids force effect, to be generated, and adsorbent exists de-
It is the problem of cannot regenerating and need to regularly replacing after water, complicated for operation while of high cost.
Invention content
A kind of biogas Preparation equipment of present invention proposition and its method, solve material in marsh gas fermentation processes in the prior art
Unevenness, high energy consumption are mixed with anaerobic species, the problems such as strain sludge is more is carried in water outlet secretly；It is inconvenient that desulfurizing agent is replaced, and de-
Sulphur is not thorough；And carbon-drop rate and the lower defect of dehydration rate.
The technical proposal of the invention is realized in this way：
A kind of biogas Preparation equipment, including biogas fermentation device, desulfurizer, decarbonization device and dehydration device further include
Level-one entrance separator, stage compressor, split-compressor and secondary inlet separator, the stage compressor and the level-one
Entrance separator is connected to, and the split-compressor is connected to stage compressor, the secondary inlet separator and split-compressor
Connection, the biogas fermentation device are connected to level-one entrance separator, and the desulfurizer connects with the secondary inlet separator
Logical, the decarbonization device is connected to desulfurizer, and the dehydration device is connected to decarbonization device, the stage compressor and two level
First-level buffer tank is provided between compressor, the dehydration device connects level 2 buffering tank, the level 2 buffering tank and three-level pressure
Contracting machine connects, and the three-stage blower is connect with biogas storage device.
Further, the biogas fermentation device includes that pretreatment warming tank, level-one anaerobic fermentation gas production tank and two level are detested
Aerobe fermentation aerogenesis tank, the pretreatment warming tank, level-one anaerobic fermentation gas production tank and B grade anaerobic fermentation aerogenesis tank are sequentially connected,
Wherein, the level-one anaerobic fermentation gas production tank includes the first tank body, and hyperboloid guide shell, hyperboloid water conservancy diversion are equipped in the first tank body
The outside of cylinder constitutes a water outlet stabilizing feed well, the bottom company of the hyperboloid guide shell and the first tank body together with the first inner tank wall
It connects, by-pass filtration guard is provided in the open top of the hyperboloid guide shell, the first tank body lower part is equipped with water distributor, described
Water distributor is connected in hyperboloid guide shell, and sludge pipe is provided in the hyperboloid guide shell, and the top of the first tank body is equipped with
First biogas discharge pipe is provided with the first water outlet, first water outlet and secondary anaerobic on the water outlet stabilizing feed well side wall
Fermentation gas tank connects, and the B grade anaerobic fermentation aerogenesis tank includes the second tank body, and second tank base is provided with double spiral shells
Bar mixing plant, the twin-screw mixing plant include two opposite conveying augers of direction of rotation, two conveying augers and electricity
Machine connects, and is provided with the second biogas discharge pipe above second tank body, discharge outlet is provided with below second tank body,
The first biogas discharge pipe is connected to the second biogas discharge pipe and is connected to level-one entrance separator.
Further, the bottom of second tank body and first tank body is taper.
Further, it is provided with secondary filtration net on first water outlet.
Further, the pretreatment warming tank includes third tank body, and the third tank body is provided with guarantor on its external wall
Warm chamber is provided with the hot-water circulation pipe around tank skin setting in the incubation cavity, heat preservation is provided on the outer wall of the incubation cavity
Layer, the third tank body are provided with temperature sensor, the pre- solar thermal collector connection of hot-water circulation pipe, institute on its inner wall
Solar thermal collector is stated to connect with water butt.
It is provided with pretreatment warming tank, waste water etc. is first preheated to set temperature, is then added in fermentation tank, can be improved
The activity of anaerobic bacteria, improves the quantum of output of biogas, while being provided with level-one anaerobic fermentation gas production tank and B grade anaerobic fermentation aerogenesis
The bottom of tank, B grade anaerobic fermentation aerogenesis tank is provided with agitating device, while utilizing and fermenting in level-one anaerobic fermentation gas production tank
Residual temperature so that fermentation is more complete, and by by-pass filtration guard and secondary filtration net, can remove addition B grade anaerobic fermentation
Greasy dirt in aerogenesis tank and large granular impurity.
Further, the desulfurizer includes desulfurizing tower tower body and the spray chamber that is set in tower body, the spray chamber
Top be provided with atomizer, the atomizer is connect with input duct, the input duct, is set at the top of the tower body
It is equipped with the first gas outlet, the bottom of the tower body is provided with the first air inlet, the first air guide is provided on first gas outlet
Pipe, first gas-guide tube are connected to desulfurization oxidant layer, the desulfurization oxidant layer storage in storage device, the storage device it is upper
Lower section is respectively arranged with the second air inlet and the second gas outlet upwards, and the bore of second air inlet is more than the second gas outlet
Bore, the storage device are detachably connected with desulfurizing tower tower body.
Further, extend the cavity of a sealing on the side of the desulfurizing tower tower body, the storage device includes one
The opening of cylindrical storage vat and connector, the cylinder storage vat is provided with the first external screw thread, the connector it is outer
It is provided with the second external screw thread on surface, a cylindrical storage vat holding tank is provided in the cavity, it is corresponding, on cavity wall
It is provided with the opening being connected to holding tank, internal thread, the cylinder storage vat clamping and holding tank are provided in the opening
It is interior, when installation, cylindrical storage vat is filled in holding tank, and by connector connecting cylinder shape storage vat and cavity.
Further, the holding tank includes that two symmetrically arranged arcs are clamped pieces, the arc clamping piece and cavity
Inner wall is fixedly connected, and the two arc clamping pieces form the cylindrical reception groove of a upper and lower opening.
Further, it is provided with sealing ring between the outer wall and the inner wall of holding tank of the cylindrical storage vat.
Further, it is provided with mesh screen on second air inlet and the second gas outlet, prevents filler from falling.
Further, spray liquid is caustic lime slurries.
Further, the decarbonization device includes decarbonizing tank, alkaline solution tank, waste collection tank, the 4th air inlet and
Four gas outlets, set cylindrical guide shell in the decarbonizing tank, the top seal of the cylinder guide shell, bottom and decarbonizing tank
Bottom surface connects, and the 4th air inlet is connected in cylindrical guide shell, is arranged on the top side wall of the cylinder guide shell
There are several ventholes, the 4th gas outlet to be set to the top of decarbonizing tank, be provided on the top of the cylinder guide shell
Spray head, the spray head are connect by pipeline with alkaline solution tank, the bottom surface of the cylinder guide shell and waste collection tank
It connects, is additionally provided with except carbon film component above the cylinder guide shell.
Further, described except the filter assemblies being arranged in carbon film component are Polyimide Hollow Fiber silk.
Further, the dehydration device includes level-one dehydration package and two level dehydration package, the level-one dehydration package
It is connected with each other with two level dehydration package, the level-one dehydration package includes dehydration tank body, and the bottom of the dehydration tank body is provided with
5th air inlet is connected with filtering water suction guard in the drain sump body, rotating flow guidance is provided at the top of the dehydration tank body
Column, the rotating flow guidance column are placed in filtering water suction guard and are connect with motor, and deflector is provided on the rotating flow guidance column,
It is provided with the 5th gas outlet on the top of the dehydration tank body, the 5th gas outlet is connect with two level dehydration package, and described two
Grade dehydration package includes two gas-guide tubes, and drier is filled in two gas-guide tubes, is connected between two gas-guide tubes and partly leads
Body heater.
Further, the section of the filtering water suction guard is U-shaped.
Further, the S-shaped arrangement of the gas-guide tube.
Further, the deflector is twist arranged.
Further, the bottom of the dehydration tank body is provided with water outlet, and the water outlet is connect with catch basin.
Further, the two level dehydration package connects wind turbine.
Further, the control system connects alarm device, and alarm is sent out when gas componant exception.
A kind of preparation of marsh-gas, includes the following steps：
S1：Industrial wastewater is introduced into fermentation in biogas fermentation device and generates biogas；
S2：Biogas in step 1 is introduced into level-one entrance separator, the graininess in the biogas that removing biogas source generates
Solid matter and moisture form the first purifying marsh gas；
S3：First purifying marsh gas, which is compressed, by stage compressor forms the first compressed biogas；
S4：First compressed biogas, which is compressed, by split-compressor forms the second compressed biogas；
S5：Solids in second compressed biogas are removed by secondary inlet separator and moisture is formed
Second purifying marsh gas；
S6：Second purifying marsh gas is introduced into desulfurizer and carries out desulfurization by desulfurization, and the concentration of hydrogen sulfide in biogas is made to reduce
To 300ppm or less；
S7：Carbon dioxide removal, purified biogas enter dehydration procedure；
S9：Compressed filling is carried out after the completion of dehydration.
In conclusion the advantage of the invention is that：Biogas fermentation device includes pretreatment warming tank, the production of level-one anaerobic fermentation
Gas tank and B grade anaerobic fermentation aerogenesis tank, enhance the activity of anaerobic bacteria so that raw material and anaerobic bacteria are uniformly mixed, biogas output amount
It is high；Desulfurizer coordinates desulfurization using dry and wet, and desulfurizing agent is connect by storage vat with desulfurizing tower, and it is convenient to replace, using two level
Dehydration package so that dehydration is more thorough.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of biogas Preparation equipment structural schematic diagram of the present invention；
Fig. 2 is desulfurizer structural schematic diagram in Fig. 1；
Fig. 3 is that warming tank structural schematic diagram is pre-processed in Fig. 1；
Fig. 4 is dehydration device structural schematic diagram in Fig. 1；
Fig. 5 is decarbonization device structural schematic diagram in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-5, a kind of biogas Preparation equipment, including it is biogas fermentation device 1, desulfurizer 2, decarbonization device 9, de-
Water installations 3, further include level-one entrance separator 5, stage compressor 6, split-compressor 7 and secondary inlet separator 8, and described one
Grade compressor 6 is connected to the level-one entrance separator 5, and the split-compressor 7 is connected to stage compressor 6, the two level
Entrance separator 8 is connected to split-compressor 7, and the biogas fermentation device 1 is connected to level-one entrance separator 5, the desulfurization
Device 2 is connected to the secondary inlet separator 8, and the decarbonization device 9 is connected to desulfurizer 2, the dehydration device 3 with it is de-
Carbon device 9 is connected to, and first-level buffer tank is provided between the stage compressor 6 and split-compressor 7, and the dehydration device 3 connects
Level 2 buffering tank is connect, the level 2 buffering tank is connect with three-stage blower 10, the three-stage blower 10 and biogas storage device
11 connections, the biogas fermentation device 1 include pretreatment warming tank 12, level-one anaerobic fermentation gas production tank 13 and B grade anaerobic fermentation
Aerogenesis tank 14, the pretreatment warming tank 12, level-one anaerobic fermentation gas production tank 13 and B grade anaerobic fermentation aerogenesis tank 14 connect successively
It connects, wherein the level-one anaerobic fermentation gas production tank 13 includes the first tank body, and hyperboloid guide shell 15 is equipped in the first tank body, double
The outside of curved surface guide shell 15 constitutes a water outlet stabilizing feed well, the hyperboloid guide shell 15 and first together with the first inner tank wall
The bottom of tank body connects, and is provided with by-pass filtration guard 16 in the open top of the hyperboloid guide shell 15, under the first tank body
Portion is equipped with water distributor, and the water distributor is connected in hyperboloid guide shell 15, and spoil disposal is provided in the hyperboloid guide shell 15
The top of pipe, the first tank body is equipped with the first biogas discharge pipe 18, and the first water outlet, institute are provided on the water outlet stabilizing feed well side wall
The first water outlet to be stated to connect with B grade anaerobic fermentation aerogenesis tank 14, the B grade anaerobic fermentation aerogenesis tank 14 includes the second tank body,
Second tank base is provided with twin-screw mixing plant 17, and the twin-screw mixing plant 17 includes that direction of rotation is opposite
Two conveying augers, two conveying augers are connect with motor, and the second biogas discharge pipe 19 is provided with above second tank body,
Be provided with discharge outlet below second tank body, the second biogas discharge pipe 19 be connected to the first biogas discharge pipe 18 and with
Level-one entrance separator 5 is connected to, and the bottom of second tank body and first tank body is taper, is set on first water outlet
It is equipped with secondary filtration net, the pretreatment warming tank 12 includes third tank body, and the third tank body is provided with guarantor on its external wall
Warm chamber 20 is provided with the hot-water circulation pipe 21 around tank skin setting in the incubation cavity 20, is set on the outer wall of the incubation cavity 20
It is equipped with insulating layer, the third tank body is provided with temperature sensor, the hot-water circulation pipe 21 and solar energy collection on its inner wall
Hot device connection, the solar thermal collector are connect with water butt, are provided with level-one anaerobic fermentation gas production tank 13 and secondary anaerobic hair
The bottom of ferment aerogenesis tank 14, B grade anaerobic fermentation aerogenesis tank 14 is provided with agitating device, while being produced using in level-one anaerobic fermentation
The residual temperature fermented in gas tank 13 so that fermentation is more complete, and by by-pass filtration guard 16 and secondary filtration net, can remove and add
Enter the greasy dirt and large granular impurity in B grade anaerobic fermentation aerogenesis tank 14, the desulfurizer 2 includes desulfurizing tower tower body, setting
Atomizer is provided at the top of the spray chamber in tower body, the spray chamber, the atomizer is connect with input duct, institute
Input duct to be stated, the first gas outlet 24 is provided at the top of the tower body, the bottom of the tower body is provided with the first air inlet 23,
The first gas-guide tube is provided on first gas outlet 24, first gas-guide tube is connected to desulfurization oxidant layer, the desulfurization oxidant layer
Storage is respectively arranged with the second air inlet and the second outlet in storage device 25 in the upper and lower directions of the storage device 25
Mouthful, the bore of second air inlet is more than the bore of the second gas outlet, and the storage device 25 and desulfurizing tower tower body are detachable
It connects, extends the cavity of a sealing on the side of the desulfurizing tower tower body, the storage device 25 includes a cylindrical storing
The opening of bucket and connector 26, the cylinder storage vat is provided with the first external screw thread, on the outer surface of the connector 26
It is provided with the second external screw thread, a cylindrical storage vat holding tank is provided in the cavity, it is corresponding, it is provided on cavity wall
The opening being connected to holding tank, is provided with internal thread in the opening, the cylinder storage vat clamping in holding tank, installation
When, cylindrical storage vat is filled in holding tank, and by 26 connecting cylinder shape storage vat of connector and cavity, the receiving
Slot includes that two symmetrically arranged arcs are clamped piece, and the arc clamping piece is fixedly connected with the inner wall of cavity, the two arc cards
Contact pin forms the cylindrical reception groove of a upper and lower opening, is arranged between the outer wall and the inner wall of holding tank of the cylinder storage vat
There is sealing ring, is provided with mesh screen on second air inlet and the second gas outlet, prevents filler from falling, spray liquid is caustic lime
Slurries, the decarbonization device 9 include decarbonizing tank, alkaline solution tank 27, waste collection tank, the 4th air inlet 28 and the 4th gas outlet
29, set cylindrical guide shell in the decarbonizing tank, the bottom surface of the top seal of the cylinder guide shell, bottom and decarbonizing tank connects
It connects, the 4th air inlet 28 is connected in cylindrical guide shell, if being provided on the top side wall of the cylinder guide shell
Stomata is done, the 4th gas outlet 29 is set to the top of decarbonizing tank, spray is provided on the top of the cylinder guide shell
Head is drenched, the spray head is connect by pipeline with alkaline solution tank 27, the bottom surface of the cylinder guide shell and waste collection tank
It connects, is additionally provided with above the cylinder guide shell except carbon film component 30, it is described except the filtering being arranged in carbon film component 30
Component be Polyimide Hollow Fiber silk, the dehydration device 3 include level-one dehydration package and two level dehydration package, described one
Grade dehydration package and two level dehydration package are connected with each other, and the level-one dehydration package includes dehydration tank body 31, the dehydration tank body
31 bottom is provided with the 5th air inlet 32, and filtering water suction guard 33, the dehydration tank body are connected in the dehydration tank body 31
31 top is provided with rotating flow guidance column, and the rotating flow guidance column is placed in filtering water suction guard 33 and is connect with motor, described
It is provided with deflector on rotating flow guidance column, is provided with the 5th gas outlet 34 on the top of the dehydration tank body 31, the described 5th goes out
Gas port 34 is connect with two level dehydration package, and the two level dehydration package includes two gas-guide tubes 35, is filled in two gas-guide tubes 35
There is drier, semiconductor heat booster is connected between two gas-guide tubes 35, the section of the filtering water suction guard 33 is U-shaped,
35 S-shaped arrangement of the gas-guide tube, the deflector are twist arranged, and the bottom of the dehydration tank body 31 is provided with water outlet
Mouthful, the water outlet is connect with catch basin, and the two level dehydration package connects wind turbine.
A kind of preparation of marsh-gas, includes the following steps：
S1：Industrial wastewater is introduced into fermentation in biogas fermentation device 1 and generates biogas；
S2：Biogas in step 1 is introduced into level-one entrance separator 5, the particle in the biogas that removing biogas source generates
Shape solid matter and moisture form the first purifying marsh gas；
S3：First purifying marsh gas, which is compressed, by stage compressor 6 forms the first compressed biogas；
S4：First compressed biogas, which is compressed, by split-compressor 7 forms the second compressed biogas；
S5：The solids and moisture shape in second compressed biogas are removed by secondary inlet separator 8
At the second purifying marsh gas；
S6：Second purifying marsh gas is introduced into desulfurizer 2 and carries out desulfurization by desulfurization, and the concentration of hydrogen sulfide in biogas is made to drop
As low as 300ppm or less；
S7：Carbon dioxide removal, purified biogas enter dehydration procedure；
S9：Compressed filling is carried out after the completion of dehydration.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of biogas Preparation equipment, it is characterised in that：Including biogas fermentation device, desulfurizer, decarbonization device and dehydration dress
It sets, further includes level-one entrance separator, stage compressor, split-compressor and secondary inlet separator, the stage compressor
Be connected to the level-one entrance separator, the split-compressor is connected to stage compressor, the secondary inlet separator with
Split-compressor is connected to, and the biogas fermentation device is connected to level-one entrance separator, and the desulfurizer enters with the two level
Mouth separator connection, the decarbonization device are connected to desulfurizer, and the dehydration device is connected to decarbonization device, the level-one pressure
First-level buffer tank is provided between contracting machine and split-compressor, the dehydration device connects level 2 buffering tank, the level 2 buffering
Tank is connect with three-stage blower, and the three-stage blower is connect with biogas storage device.
2. a kind of biogas Preparation equipment according to claim 1, it is characterised in that：The biogas fermentation device includes pre- place
Manage warming tank, level-one anaerobic fermentation gas production tank and B grade anaerobic fermentation aerogenesis tank, the pretreatment warming tank, level-one anaerobic fermentation
Aerogenesis tank and B grade anaerobic fermentation aerogenesis tank are sequentially connected, wherein and the level-one anaerobic fermentation gas production tank includes the first tank body, the
Hyperboloid guide shell is equipped in one tank body, the outside of hyperboloid guide shell constitutes a water outlet current stabilization together with the first inner tank wall
Cylinder, the hyperboloid guide shell are connect with the bottom of the first tank body, and one is provided in the open top of the hyperboloid guide shell
Grade filtering screen, the first tank body lower part are equipped with water distributor, and the water distributor is connected in hyperboloid guide shell, and the hyperboloid is led
Sludge pipe is provided in flow cartridge, the top of the first tank body is equipped with the first biogas discharge pipe, is arranged on the water outlet stabilizing feed well side wall
There are the first water outlet, first water outlet to be connect with B grade anaerobic fermentation aerogenesis tank, the B grade anaerobic fermentation aerogenesis tank packet
The second tank body is included, second tank base is provided with twin-screw mixing plant, and the twin-screw mixing plant includes rotation side
To two opposite conveying augers, two conveying augers are connect with motor, and the second biogas is provided with above second tank body
Discharge pipe is provided with discharge outlet below second tank body, and the first biogas discharge pipe is connected to the second biogas discharge pipe
And be connected to level-one entrance separator, the bottom of second tank body and first tank body is taper, first water outlet
On be provided with secondary filtration net.
3. a kind of biogas Preparation equipment according to claim 2, it is characterised in that：The pretreatment warming tank includes third
Tank body, the third tank body are provided with incubation cavity on its external wall, and the hot water around tank skin setting is provided in the incubation cavity
Circulation pipe is provided with insulating layer on the outer wall of the incubation cavity, and the third tank body is provided with temperature sensor on its inner wall,
The pre- solar thermal collector connection of hot-water circulation pipe, the solar thermal collector are connect with water butt.
4. a kind of biogas Preparation equipment according to claim 1, it is characterised in that：The desulfurizer includes desulfurizing tower tower
Body and the spray chamber being set in tower body are provided with atomizer, the atomizer and inlet tube at the top of the spray chamber
Road connects, the input duct, is provided with the first gas outlet at the top of the tower body, the bottom of the tower body be provided with first into
Gas port is provided with the first gas-guide tube on first gas outlet, and first gas-guide tube is connected to desulfurization oxidant layer, the desulfurizing agent
Layer storage is respectively arranged with the second air inlet and the second gas outlet in storage device in the upper and lower directions of the storage device,
The bore of second air inlet is more than the bore of the second gas outlet, and the storage device is detachably connected with desulfurizing tower tower body.
5. a kind of biogas Preparation equipment according to claim 4, it is characterised in that：Prolong on the side of the desulfurizing tower tower body
The cavity of a sealing is stretched out, the storage device includes that a cylindrical storage vat and connector, the cylinder storage vat are opened
It is provided with the first external screw thread at mouthful, the second external screw thread is provided on the outer surface of the connector, one is provided in the cavity
Cylindrical storage vat holding tank, it is corresponding, it is provided with the opening being connected to holding tank on cavity wall, is provided in the opening
When installation, cylindrical storage vat is filled in holding tank, and is led to in holding tank for internal thread, the cylinder storage vat clamping
Connector connecting cylinder shape storage vat is crossed on cavity, the holding tank includes that two symmetrically arranged arcs are clamped piece, the arc
Shape clamping piece is fixedly connected with the inner wall of cavity, and the two arc clamping pieces form the cylindrical reception groove of a upper and lower opening, institute
It states and is provided with sealing ring between the outer wall of cylindrical storage vat and the inner wall of holding tank, second air inlet and the second gas outlet
On be provided with mesh screen.
6. a kind of biogas Preparation equipment according to claim 1, it is characterised in that：The decarbonization device include decarbonizing tank,
Alkaline solution tank, waste collection tank, the 4th air inlet and the 4th gas outlet set cylindrical guide shell in the decarbonizing tank, described
The bottom surface of the top seal of cylindrical guide shell, bottom and decarbonizing tank connects, and the 4th air inlet is connected to cylindrical water conservancy diversion
In cylinder, several ventholes are provided on the top side wall of the cylinder guide shell, the 4th gas outlet is set to decarbonizing tank
Top, be provided with spray head on the top of the cylinder guide shell, the spray head passes through pipeline and connects with alkaline solution tank
It connects, the bottom surface of the cylinder guide shell is connect with waste collection tank, is additionally provided with except carbon above the cylinder guide shell
Membrane module.
7. a kind of biogas Preparation equipment according to claim 1, it is characterised in that：The dehydration device includes level-one dehydration
Component and two level dehydration package, the level-one dehydration package and two level dehydration package are connected with each other, the level-one dehydration package packet
Dehydration tank body is included, the bottom of the dehydration tank body is provided with the 5th air inlet, filtering water absorbent net is connected in the drain sump body
Cover, is provided with rotating flow guidance column at the top of the dehydration tank body, the rotating flow guidance column be placed in filtering water suction guard it is interior and with electricity
Machine connects, and deflector is provided on the rotating flow guidance column, the 5th gas outlet is provided on the top of the dehydration tank body, described
5th gas outlet is connect with two level dehydration package, and the two level dehydration package includes two gas-guide tubes, is filled in two gas-guide tubes
There is drier, semiconductor heat booster is connected between two gas-guide tubes, the bottom of the dehydration tank body is provided with water outlet, institute
It states water outlet to connect with catch basin, the two level dehydration package connects wind turbine.
8. a kind of preparation of marsh-gas, it is characterised in that：Described method includes following steps：
S1：Industrial wastewater is introduced into fermentation in biogas fermentation device and generates biogas；
S2：Biogas in step 1 is introduced into level-one entrance separator, the granular solids in the biogas that removing biogas source generates
Substance and moisture form the first purifying marsh gas；
S3：First purifying marsh gas, which is compressed, by stage compressor forms the first compressed biogas；
S4：First compressed biogas, which is compressed, by split-compressor forms the second compressed biogas；
S5：Solids and the moisture formation second in second compressed biogas are removed by secondary inlet separator
Purifying marsh gas；
S6：Second purifying marsh gas is introduced into desulfurizer and carries out desulfurization by desulfurization, and the concentration of hydrogen sulfide in biogas is made to be reduced to
300ppm or less；
S7：Carbon dioxide removal, purified biogas enter dehydration procedure；
S9：Compressed filling is carried out after the completion of dehydration.
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| CN201710301850.9A CN108795714A (en) | 2017-05-02 | 2017-05-02 | A kind of biogas Preparation equipment and its method |
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| US20160166980A1 (en) * | 2013-06-24 | 2016-06-16 | Beijing Helee Bio-Energy Ltd. | Container-type biogas purification film method purification system |
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| CN202193660U (en) * | 2010-12-23 | 2012-04-18 | 河南天冠工业沼气有限公司 | Powerless self-circulation perfectly-stirred anaerobic reactor |
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Application publication date: 20181113 |