CN102010768A - Biogas anaerobe desulfuration device and method thereof - Google Patents
Biogas anaerobe desulfuration device and method thereof Download PDFInfo
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- CN102010768A CN102010768A CN2010105845400A CN201010584540A CN102010768A CN 102010768 A CN102010768 A CN 102010768A CN 2010105845400 A CN2010105845400 A CN 2010105845400A CN 201010584540 A CN201010584540 A CN 201010584540A CN 102010768 A CN102010768 A CN 102010768A
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- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
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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
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Abstract
A biogas anaerobe desulfuration device and method thereof relate to a biogas biological desulfurization device and method. In the invention, the problem that after sulfur microparticles are generated in the desulfuration process of photoautotroph microbe, the light transmittance is reduced and the desulfuration efficiency is affected is solved. In the desulfuration device, an organic glass reaction column or an inorganic glass reaction column are used as the reaction column; a humidifier is arranged on a biogas inlet pipe; a liquid discharge pipe is communicated with a gas-liquid separator; a ventilated baffle plate is arranged in the reaction column; filler is placed on the ventilated baffle plate; and a fill light is arranged on the outside of the reaction column. The desulfuration method in the invention comprises the following steps: biogas is humidified and atomized by the humidifier and then enters the reaction column to form a descending flow and flow through filler; photoautotroph bacteria utilizes CO2 to synthetize cellular material while converting S<2-> to elemental sulfur to release outside the cells, the elemental sulfur is separated from the filler and then discharged; and the biogas liquid without CO2 and H2S flows out of the liquid discharge pipe and is separated by the gas-liquid separator. The device in the invention is especially suitable for the small-sized biogas treatment engineering and the home desulphurization treatment.
Description
Technical field
The present invention relates to a kind of methane bio-desulfurization Apparatus and method for, be specifically related to a kind of biogas anaerobe sweetener and method.
Background technology
Along with the widespread use of agriculture and industry waste Anaerobic Microbiological Treatment Technology, biogas is as a kind of reproducible biomass energy, in fossil energy deficient day by day today, more and more is subjected to people's attention and attention.Under the standard state, the main component of biogas is methane (50% to 70%) and carbonic acid gas (30% to 40%), and contains a spot of carbon monoxide, hydrogen, hydrogen sulfide, oxygen and nitrogen etc.Hydrogen sulfide in the biogas results from the degradation process of protein and other sulfocompounds. so concentration of hydrogen sulfide depends on the charging situation of biogas generator. and between 0.1% and 2%, change.Concentration of hydrogen sulfide is too high, and to be biogas use one of maximum limiting factor as combustion gas because hydrogen sulfide has very strong corrosive nature to combustion powered equipment and metallic conduit, thereby and can cause the wearing and tearing of the rotten boost engine of lubricating oil; In addition, biogas is after the process burning, and hydrogen sulfide can be converted into sulfur oxide (SO
X) and be discharged in the air, cause topsoil.Therefore, before the biogas burning utilizes, must remove hydrogen sulfide wherein.
Biogas desulfurization mode commonly used has chemical method and biological process.The method that chemical desulfurization adopts dry oxidation iron to absorb is usually passed through sweetening agent bed, the H in the biogas with biogas at normal temperatures
2S contacts with activated ferric oxide, generates ironic sulfide, and the sweetening agent that contains sulfide then contacts with airborne oxygen, and when water existed, the sulfide of iron was converted into ferric oxide and elemental sulfur again.This desulfurization regeneration process is capable of circulation carries out repeatedly, is covered by sulphur or other impurity and till losing activity until most of space on ferric oxide desulfurizer surface.Chemical desulfurization need use sweetening agent, and when hydrogen sulfide in methane content was higher, sweetening agent was changed frequent, not only increases cost, and the comparison difficulty that operates.The sweetening agent of inactivation if improper conduct oneself well to put easily cause secondary pollution.
Biological desulphurization is a kind of new technology of instead of chemical desulfurization, and it can overcome the deficiency of chemical desulfurization aspect a lot.In the biological desulphurization process, relate to two big quasi-microorganism, i.e. photosynthetic autotrophs microorganism and chemosynthetic autotroph microorganisms.
In recent years, many for utilizing the chemosynthetic autotroph Study on microbial desulfurization both at home and abroad, the most sophisticated to represent bacterium be T.f bacterium (thiobacillus ferrooxidant).States such as Holland, Germany, Japan, the U.S. have obtained some successes in this respect, and several biological desulphurization patents are also arranged.Have: " process for desulfurizing gas " of (1) Dutch Paques company exploitation can be converted into the hydrogen sulfide in the air-flow elementary sulfur with " biology is deviate from the method for sulfide " and separate, thus desulfurization; (2) " the methane bio-desulfurization system " of invention such as Ri Ben KATO REIHO contacts by nitrification liquid and biogas are reverse, the hydrogen sulfide in absorption, the oxidation biogas; (3) " sulfur method and the desulfurization setting " of exploitation such as Ri Ben Suzuki Tsuneo natural pond liquid is imported in the biological desulphurization tower, thereby and put into the fixedly hydrogen sulfide of thiobacterium removal biogas of carrier; (4) " bio-desulfurization device " of Ike Take exploitation sprays into aerobic aeration mud in the thionizer and the reverse contact desulfuriation of sulfurous gas, and desulfurization mud passes back into and carries out regeneration activating in the aeration tank; (5) " the bio-oxidation catalytic desulfurization device " of the invention of Qingdao School of Architecture ﹠ Civil Engineering utilizes bio-packing apparatus desulfurization, sulfur-containing liquid to enter aeration activation in the other regeneration activating device.
Aspect the hydrogen sulfide in photosynthetic autotrophs microbial technique removal biogas, the photosynthetic autotrophs bacterium is a kind of comparatively ideal microorganism, because it can utilize inorganic carbon source, and the desulfuration efficiency height of this microorganism simultaneously, and the meta-bolites elemental sulfur is released in outside, relatively separate easily.
The photosynthetic autotrophs bacterium can be an elemental sulfur with sulfide oxidation, and its growth is only to light, C0
2With the inorganic nutrients thing requirement is arranged, and will keep strict anaerobic environment.The photosynthetic autotrophs bacterium can not be moved. and at born of the same parents' external sediment elemental sulfur.The photosynthetic autotrophs bacterium is with C0
2Be reduced to carbohydrate and with S
2-Be oxidized to S
0Total photochemical reaction suc as formula
The live body photoabsorption spectral range of photosynthetic autotrophs bacterium performance light absorptive 350 and 850mm between, and peak value appears when 760mm.
But, because after in reaction process, generating the microparticle of sulphur, transmittance will reduce greatly, make at present in the world the development about the device of photosynthetic autotrophs microbiological treatment hydrogen sulfide almost be in blank thereby influence reason such as desulfuration efficiency, the separation problem that the insider also generally believes the control intensity of illumination and solves elemental sulfur is the key of its desulfurization.
Summary of the invention
The objective of the invention is for after solving the microparticle that generates sulphur in the existing photosynthetic autotrophs microbial desulfurization process, transmittance reduces, thereby influences the problem of desulfuration efficiency, and then a kind of biogas anaerobe sweetener and method are provided.
Technical scheme of the present invention is: biogas anaerobe sweetener comprises that light filling lamp, reaction column, biogas enter pipe, shore pipe, drain pipe, gas-liquid separator, biogas outlet pipe and liquid discharge pipe; Biogas anaerobe sweetener also comprises the filler that is attached with the photosynthetic autotrophs bacterium, ventilative dividing plate and humidifier, described reaction column is synthetic glass reaction column or unorganic glass reaction column, the top of reaction column has the biogas import, biogas enters pipe and is installed in biogas ingress, described biogas enters humidifier is installed on the pipe, the bottom of reaction column has mud discharging mouth, one end of shore pipe passes mud discharging mouth and places in the reaction column, and extend to the end of reaction column, the other end of shore pipe places the outside of reaction column, the bottom of described reaction column is a liquid segment, the bottom of described reaction column has liquid outlet, one end of drain pipe is installed in the liquid outlet place, the other end of drain pipe is communicated with gas-liquid separator, the upper end of gas-liquid separator is connected with the biogas outlet pipe, the lower end of gas-liquid separator is connected with liquid discharge pipe, described ventilative dividing plate is installed in the reaction column, and be positioned at the top of drain pipe, be provided with the filler that is attached with the photosynthetic autotrophs bacterium in the reaction column, the filler that is attached with the photosynthetic autotrophs bacterium is placed on the ventilative dividing plate, described light filling lamp is arranged on the outside of reaction column, and the distance between light filling lamp and the reaction column is 50mm-60mm.
Technical scheme of the present invention is: the detailed process of biogas anaerobe sulfur method is: biogas enters pipe from biogas and enters the reaction column after the atomizing of humidifier humidification, form katabatic drainage and flow through and be attached with the filler of photosynthetic autotrophs bacterium, the photosynthetic autotrophs bacterium utilizes CO
2The synthetic cell material is simultaneously with S
2-Be converted into elemental sulfur and be released in outside, under the effect of katabatic drainage, elemental sulfur separates from the filler that is attached with the photosynthetic autotrophs bacterium, and is deposited to the bottom of reaction column gradually, outside shore pipe is discharged reaction column, has realized removing CO
2And H
2The methane liquid of S flow to the bottom of reaction column, flows out from drain pipe, and through gas-liquid separator separates, the biogas after the processing is discharged from the biogas outlet pipe, and in the reaction column operational process, the light filling lamp provides light source for the photosynthetic autotrophs bacterial growth.
The present invention compared with prior art has following effect: 1. device is simple, small and exquisite, and automatic mud removing is easy to carrying, especially is fit to the small-sized methane treatment project and as family's sweetener.2. adopt photosynthetic autotrophs bacterial eliminating hydrogen sulfide, system flow is simple, non-secondary pollution, and hydrogen sulfide in methane almost all changes sulphur simple substance, no coupling product, recyclable elemental sulfur into.3. formation katabatic drainage has solved the photosynthetic autotrophs bacterium and has been applied in the desulfurization sulphur simple substance and assembles a difficult problem that influences transmittance.4. treatment effect is good, and when the content of hydrogen sulfide in methane was 300-1500mg/L, desulfuration efficiency can reach more than 90%.
Description of drawings
Fig. 1 is an one-piece construction front view of the present invention, and Fig. 2 is the structural representation of ventilative dividing plate 10.
Embodiment
Embodiment one: in conjunction with Fig. 1-2 present embodiment is described, the biogas anaerobe sweetener of present embodiment comprises that light filling lamp 1, reaction column 2, biogas enter pipe 4, shore pipe 5, drain pipe 6, gas-liquid separator 7, biogas outlet pipe 8 and liquid discharge pipe 9; Biogas anaerobe sweetener also comprises the filler 3 that is attached with the photosynthetic autotrophs bacterium, ventilative dividing plate 10 and humidifier 11, described reaction column 2 is synthetic glass reaction column or unorganic glass reaction column, the top of reaction column 2 has biogas import 2-1, biogas enters pipe 4 and is installed in biogas import 2-1 place, described biogas enters on the pipe 4 humidifier 11 is installed, the bottom of reaction column 2 has mud discharging mouth 2-2, one end of shore pipe 5 passes mud discharging mouth 2-2 and places in the reaction column 2, and extend to the end of reaction column 2, the other end of shore pipe 5 places the outside of reaction column 2, the bottom of described reaction column 2 is a liquid segment, the bottom of described reaction column 2 has liquid outlet 2-3, one end of drain pipe 6 is installed in liquid outlet 2-3 place, the other end of drain pipe 6 is communicated with gas-liquid separator 7, the upper end of gas-liquid separator 7 is connected with biogas outlet pipe 8, the lower end of gas-liquid separator 7 is connected with liquid discharge pipe 9, described ventilative dividing plate 10 is installed in the reaction column 2, and be positioned at the top of drain pipe 6, be provided with the filler 3 that is attached with the photosynthetic autotrophs bacterium in the reaction column 2, the filler 3 that is attached with the photosynthetic autotrophs bacterium is placed on the ventilative dividing plate 10, described light filling lamp 1 is arranged on the outside of reaction column 2, and the distance between light filling lamp 1 and the reaction column 2 is 50mm-60mm.
Ventilative dividing plate 10 in the present embodiment is for having the plate of water distributing pore.
Adopt in the present embodiment to enter pipe 4 at biogas humidifier 11 is set, water enters and forms katabatic drainage through humidifier 11 atomizing backs together with biogas, and the easier elemental sulfur that makes generation precipitates and separates.
Light filling lamp 1 in the present embodiment has improved light efficiency effectively, for microorganism growth has been created suitable condition.
Gas-liquid separator 7 is set on drain pipe 6 in the present embodiment, makes biogas and liquid separation after the processing.
In the bottom of reaction column 2 shore pipe 5 is set in the present embodiment, utilizes the hydrostaticpressure of liquid segment in the reaction column 2 to make the sulfur granules of microorganisms discharge system.
The biogas anaerobe sweetener of present embodiment can work alone in practical application, also can a plurality of associating parallel runnings.
Adopt the hydrogen sulfide in the photosynthetic autotrophs bacterial treatment biogas in the present embodiment.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the diameter of the reaction column 2 of present embodiment is 80-100mm, and reaction column 2 height are 1000mm.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the filler that is attached with the photosynthetic autotrophs bacterium 3 of present embodiment is for being attached with the polyethylene filler of photosynthetic autotrophs bacterium.So be provided with, eliminated or obviously alleviated sulphur simple substance accumulating problem.Other composition and annexation are identical with embodiment one or two.
Embodiment four: the photosynthetic autotrophs bacterium of present embodiment is a green sulfur bacteria.Green sulfur bacteria is a kind of photosynthetic autotrophs microorganism of strictly anaerobic.System does not need to add nutritive substance, and under the situation of illumination and inorganic nutrient substance existence, green sulfur bacteria can utilize CO
2The synthetic cell material is simultaneously with S
2-Be converted into elemental sulfur and be released in outside, these characteristics make the photosynthetic autotrophs bacterium be fit to very much biological desulphurization, reach simultaneously and remove CO in the biogas
2Purpose.Other composition and annexation are identical with embodiment one, two or three.
Embodiment five: in conjunction with Fig. 1 present embodiment is described, the light filling lamp 1 and the reaction column 2 of present embodiment are parallel to each other.So be provided with, more effectively improved light efficiency, for microorganism growth has been created condition preferably.Other composition and annexation are identical with embodiment one, two, three or four.
Embodiment six: present embodiment is described in conjunction with Fig. 1, the detailed process of the biogas anaerobe sulfur method of present embodiment is: biogas enters pipe 4 from biogas and enters the reaction column 2 after the atomizing of humidifier 11 humidifications, the filler 3 that forms katabatic drainage and flow through and be attached with the photosynthetic autotrophs bacterium, the photosynthetic autotrophs bacterium utilizes CO
2The synthetic cell material is simultaneously with S
2-Be converted into elemental sulfur and be released in outside, under the effect of katabatic drainage, elemental sulfur separates from the filler 3 that is attached with the photosynthetic autotrophs bacterium, and is deposited to the bottom of reaction column 2 gradually, discharges outside the reaction column 2 through shore pipe 5, has realized removing CO
2And H
2The methane liquid of S flow to the bottom of reaction column 2, flows out from drain pipe 6, separates through gas-liquid separator 7, and the biogas after the processing is discharged from biogas outlet pipe 8, and in reaction column 2 operational processs, light filling lamp 1 provides light source for the photosynthetic autotrophs bacterial growth.The desulfurizer that adopts in the present embodiment is the biogas anaerobe sweetener described in embodiment one, two, three, four or five.
Claims (6)
1. biogas anaerobe sweetener, it comprises that light filling lamp (1), reaction column (2), biogas enter pipe (4), shore pipe (5), drain pipe (6), gas-liquid separator (7), biogas outlet pipe (8) and liquid discharge pipe (9); It is characterized in that: biogas anaerobe sweetener also comprises the filler (3) that is attached with the photosynthetic autotrophs bacterium, ventilative dividing plate (10) and humidifier (11), described reaction column (2) is synthetic glass reaction column or unorganic glass reaction column, the top of reaction column (2) has biogas import (2-1), biogas enters pipe (4) and is installed in biogas import (2-1) and locates, described biogas enters humidifier (11) is installed on the pipe (4), the bottom of reaction column (2) has spoil disposal (2-2), one end of shore pipe (5) passes spoil disposal (2-2) and places in the reaction column (2), and extend to the end of reaction column (2), the other end of shore pipe (5) places the outside of reaction column (2), the bottom of described reaction column (2) is a liquid segment, the bottom of described reaction column (2) has fluid (2-3), one end of drain pipe (6) is installed in fluid (2-3) and locates, the other end of drain pipe (6) is communicated with gas-liquid separator (7), the upper end of gas-liquid separator (7) is connected with biogas outlet pipe (8), the lower end of gas-liquid separator (7) is connected with liquid discharge pipe (9), described ventilative dividing plate (10) is installed in the reaction column (2), and be positioned at the top of drain pipe (6), be provided with the filler (3) that is attached with the photosynthetic autotrophs bacterium in the reaction column (2), the filler (3) that is attached with the photosynthetic autotrophs bacterium is placed on the ventilative dividing plate (10), described light filling lamp (1) is arranged on the outside of reaction column (2), and the distance between light filling lamp (1) and the reaction column (2) is 50mm-60mm.
2. biogas anaerobe sweetener according to claim 1 is characterized in that: the diameter of reaction column (2) is 80-100mm, and reaction column (2) height is 1000mm.
3. biogas anaerobe sweetener according to claim 1 and 2 is characterized in that: the filler (3) that is attached with the photosynthetic autotrophs bacterium is for being attached with the polyethylene filler of photosynthetic autotrophs bacterium.
4. biogas anaerobe sweetener according to claim 3 is characterized in that: the photosynthetic autotrophs bacterium is a green sulfur bacteria.
5. according to claim 1,2 or 4 described biogas anaerobe sweeteners, it is characterized in that: light filling lamp (1) is arranged in parallel with reaction column (2).
6. the method for utilizing the described biogas anaerobe of claim 1 sweetener to carry out desulfurization, it is characterized in that: the detailed process of biogas anaerobe sulfur method is: biogas enters pipe (4) from biogas and enters the reaction column (2) after the atomizing of humidifier (11) humidification, the filler (3) that forms katabatic drainage and flow through and be attached with the photosynthetic autotrophs bacterium, the photosynthetic autotrophs bacterium utilizes CO
2The synthetic cell material is simultaneously with S
2-Be converted into elemental sulfur and be released in outside, under the effect of katabatic drainage, elemental sulfur separates from the filler (3) that is attached with the photosynthetic autotrophs bacterium, and the be deposited to reaction column gradually bottom of (2), outside shore pipe (5) is discharged reaction column (2), realized removing CO
2And H
2The methane liquid of S flow to the bottom of reaction column (2), flow out from drain pipe (6), separate through gas-liquid separator (7), the biogas after the processing is discharged from biogas outlet pipe (8), in reaction column (2) operational process, light filling lamp (1) provides light source for the photosynthetic autotrophs bacterial growth.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618341A (en) * | 2012-04-06 | 2012-08-01 | 张武军 | Application of biogas in baking of glass products |
| WO2014009575A1 (en) * | 2012-07-09 | 2014-01-16 | Un!Versidad De Valladolid | Microaerobic system for controlling the concentration of hydrogen sulfide in biomethanation reactors |
| CN103961998A (en) * | 2013-11-25 | 2014-08-06 | 段国秀 | Biogasbiological desulfurization treatment system |
| CN106378005A (en) * | 2016-10-26 | 2017-02-08 | 苏州依斯倍环保装备科技有限公司 | Device of treating hydrogen sulfide in biogas by green sulfur bacteria |
| CN110240331A (en) * | 2019-06-12 | 2019-09-17 | 山东民和生物科技股份有限公司 | The method and system of biogas desulfurization are carried out using electrolysis and air-flotation process biogas slurry |
| CN112546985A (en) * | 2020-12-01 | 2021-03-26 | 安徽工程大学 | In-situ biogas desulfurization device and method |
| RU209379U1 (en) * | 2021-07-06 | 2022-03-15 | Баир Цыдыпович Санжимитупов | biogas plant |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618341A (en) * | 2012-04-06 | 2012-08-01 | 张武军 | Application of biogas in baking of glass products |
| WO2014009575A1 (en) * | 2012-07-09 | 2014-01-16 | Un!Versidad De Valladolid | Microaerobic system for controlling the concentration of hydrogen sulfide in biomethanation reactors |
| ES2442244A1 (en) * | 2012-07-09 | 2014-02-10 | Universidad De Valladolid | Microaerobic system for controlling the concentration of hydrogen sulfide in biomethanation reactors |
| CN103961998A (en) * | 2013-11-25 | 2014-08-06 | 段国秀 | Biogasbiological desulfurization treatment system |
| CN106378005A (en) * | 2016-10-26 | 2017-02-08 | 苏州依斯倍环保装备科技有限公司 | Device of treating hydrogen sulfide in biogas by green sulfur bacteria |
| CN110240331A (en) * | 2019-06-12 | 2019-09-17 | 山东民和生物科技股份有限公司 | The method and system of biogas desulfurization are carried out using electrolysis and air-flotation process biogas slurry |
| CN110240331B (en) * | 2019-06-12 | 2020-01-07 | 山东民和生物科技股份有限公司 | Method and system for performing biogas desulfurization by using electrolysis and air flotation to treat biogas slurry |
| CN112546985A (en) * | 2020-12-01 | 2021-03-26 | 安徽工程大学 | In-situ biogas desulfurization device and method |
| RU209379U1 (en) * | 2021-07-06 | 2022-03-15 | Баир Цыдыпович Санжимитупов | biogas plant |
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Application publication date: 20110413 |