CN106467889A - A kind of biomass anaerobic fermentation tank pneumatic agitation system - Google Patents
A kind of biomass anaerobic fermentation tank pneumatic agitation system Download PDFInfo
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- CN106467889A CN106467889A CN201510512089.4A CN201510512089A CN106467889A CN 106467889 A CN106467889 A CN 106467889A CN 201510512089 A CN201510512089 A CN 201510512089A CN 106467889 A CN106467889 A CN 106467889A
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- anaerobic fermentation
- carbon dioxide
- serosity
- pneumatic agitation
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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
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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
- 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
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
- C12M27/04—Stirrer or mobile mixing elements with introduction of gas through the stirrer or mixing element
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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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses a kind of biomass anaerobic fermentation tank pneumatic agitation system approach, belong to biomass anaerobic fermentation technical field.It is passed through film decarbonation appliance after the biogas dehydration equipment that produces anaerobic fermentation, desulfurizing and purifying equipment are processed, the methane being on the one hand purified, the tail gas carbon dioxide of another aspect is as obtaining pneumatic agitation power source system in the present invention；After Methane decarbonization, tail gas carbon dioxide is stimulated the menstrual flow and enter CO 2 high pressure air accumulator after compressor compresses；High-pressure carbon dioxide gas after compression is passed through anaerobic fermentation tank stirring high concentration anaerobic fermentation serosity through stirring breather.The present invention is stirred using high-pressure carbon dioxide gas, has the characteristics that anaerobic fermentation efficiency high has that stirring efficiency is high, simple to operate, safety and environmental protection.
Description
Technical field
The present invention relates to biomass anaerobic fermentation technical field, particularly to a kind of a kind of biomass anaerobic fermentation tank pneumatic agitation system high-concentration raw material anaerobic fermentation pneumatic agitation method.
Background technology
With national policy, reclaiming organic waste is utilized with the support of producing methane through anaerobic fermentation project, intensive large-sized biogas engineering presents good development momentum in China, and government increases Technical investment and financial support to biomass energy and recycling.
Organic waste producing methane through anaerobic fermentation technology, can reduce solid waste and the disposal of pollutants of gas, reduce greenhouse effect, improve resource utilization rate.Therefore, biomass anaerobic fermentation technology is increasingly paid attention to by row those skilled in the art and expert, progressively will improve biomass ferment rate as one of primary study direction.
Biomass anaerobic fermentation refers to utilize microorganism, under appropriate conditions, raw material is converted into the process of the product of human needs through specific metabolic pathway.Biomass anaerobic fermentation produces process of methane needs several stages such as experience hydrolysis, acidifying, methane phase, fermentation raw material species, fermentation solid content, fermentation temperature, fermentation pH value, stirring etc. are all the factors of impact anaerobic fermentation efficiency, are also the factor directly affecting system stable operation.
Biomass anaerobic fermentation technology, according to the form of raw material, is divided into wet type fermentation and dry fermentation at present.Wet type fermentation materials are in working fluid, are easy to pipeline and are conveyed by material., in material, there is not flowable liquid in dry fermentation high concentration anaerobic fermented liquid as mentioned.Either wet type fermentation or dry fermentation, stirring is all the key factor affecting its factor of created gase.In order to improve its volume yield rate, need fermented feed liquid is carried out periodic agitation, the mass transport process of forced fermentation raw material, improve reaction rate.
In anaerobic fermentation engineering, common alr mode has mechanical agitation, liquid agitation and the stirring of strength body at present.Mechanical agitation is to use machinery, makes material reach admixture by mechanical movement, this mode can produce powerful shear action, and mixed effect preferably, but is not suitable for high gravity fermentation；Liquid agitation completes the stirring to material using liquid flowing produced by pump operating, and mechanical rotating machinery in tank is easy to maintenance, simple, but is not also suitable for high gravity fermentation.The stirring of strength body is that the stirring to material is realized in the motion in material by bubble.Mechanical agitation and liquid agitation are required to be equipped with special power-equipment, and frequent keying easily causes fault.Gas Stirring pneumatic agitation refers mainly to biogas recirculation stirring at present, and has High-pressure Marsh Gas circulation stirring high concentration anaerobic fermented liquid abroad, but biogas is explosive, and thick biogas condensed fluid is easily to equipment and pipeline corrosion.
Content of the invention
The problem existing for stirring technique during existing biomass anaerobic fermentation, it is an object of the invention to provide a kind of anaerobic fermentation efficiency high, simple to operate, safe high gravity fermentation liquid stirring system method.
The method that a kind of a kind of utilization carbon dioxide of biomass anaerobic fermentation tank pneumatic agitation system of the present invention stirs pneumatic agitation high concentration anaerobic fermentation serosity, the biogas that anaerobic fermentation is produced is dehydrated, desulfurizing and purifying is passed through film decarbonation appliance system after processing, after Methane decarbonization, tail gas carbon dioxide is passed through compressor compresses, and be stored in CO 2 high pressure air accumulator, the spray-nozzle type sprinkler head stirring anaerobic fermentation serosity that the carbon dioxide after compressing is passed through anaerobic fermentation pot bottom by setting program is stirred according to technique.
Described anaerobic fermentation serosity solid content concentration is 20-30%.
After described film decarburization, offgas outlet pressure carbon dioxide is 80-100KPa.
After described carbon dioxide compression, pressure is 5-6 kilogram.
Described shower nozzle is evenly arranged in whole anaerobic fermentation pot bottom, adjacent shower nozzle（9）Distance be 300 ~ 600mm, shower nozzle aerofluxuss aperture 10 ~ 25mm.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below, the accompanying drawing of required use is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Accompanying drawing 1 is the process flow diagram that a kind of a kind of utilization carbon dioxide of biomass anaerobic fermentation tank pneumatic agitation system stirs pneumatic agitation high concentration anaerobic fermented liquid
Accompanying drawing 1 includes：By, 1, thick biogas air inlet pipe 1,2, film decarbonation appliance 2,3, methane gas escape pipe 3,4, tail gas carbon dioxide escape pipe 4,5, compressor 5,6, CO 2 high pressure air accumulator 6,7, stirring breather 7,8, anaerobic fermentation tank 8,9, spray-nozzle type sprinkler head 9, dehydration and, desulfurizing and purifying device systems 10, a few part composition.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The invention provides a kind of a kind of stirring means of high concentration anaerobic fermented liquid of biomass anaerobic fermentation tank pneumatic agitation system, its concrete grammar is as follows：
By anaerobic fermentation tank（8）Anaerobic fermentation produce biogas through dehydration and, desulfurizing and purifying device systems（10）It is passed through film decarbonation appliance after process（2）, after Methane decarbonization, tail gas carbon dioxide is passed through compressor（5）Compress and be cached in CO 2 high pressure air accumulator（7）, the carbon dioxide after compression is passed through spray-nozzle type sprinkler head (9) the stirring anaerobic fermentation serosity of anaerobic fermentation pot bottom.
Here biogas dehydration, desulfurizing and purifying enter the thick biogas air inlet pipe before film decarbonization system after processing（1）12-15 kilogram of biogas pressure, below 3 degree of dew point, below hydrogen sulfide content 5ppm, oil content 0.01mg/m3,0.1 micron of solid particulate matter maximum gauge.
Above-mentioned biogas offgas outlet (4) carbon dioxide content after the process of film decarbonation appliance is 92-97%.
After described film decarburization, offgas outlet (4) pressure carbon dioxide is 80-100KPa.
After described carbon dioxide compression, pressure is 5-6 kilogram.
Described shower nozzle is evenly arranged in whole anaerobic fermentation pot bottom, adjacent shower nozzle（9）Apart from 400mm, shower nozzle aerofluxuss aperture 18mm.
Carbon dioxide after compression is temporarily stored into CO 2 high pressure air accumulator (7), every venting stirring in 3 hours once.
In a word, the foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of biomass anaerobic fermentation tank pneumatic agitation system is a kind of stirs the method for high concentration anaerobic fermentation serosity it is characterised in that comprising the steps using carbon dioxide：
Step A, the thick biogas producing anaerobic fermentation are through thick biogas air inlet pipe（1）Through dehydration and, desulfurizing and purifying device systems（10）After be passed through film decarbonation appliance（2）System, the methane gas being on the one hand purified（3）, another aspect tail gas carbon dioxide is as pneumatic agitation power source；
After step B, Methane decarbonization, tail gas carbon dioxide is passed through compressor（5）Compress and be stored in CO 2 high pressure air accumulator（6）；
Step C, by compression after the agitated breather of carbon dioxide（7）It is passed through anaerobic fermentation tank（8）, shower nozzle mouth through bottom（9）Spray, stirring carries out pneumatic agitation to anaerobic fermentation serosity.
2. a kind of anaerobic fermentation serosity strength according to claim 1 moves stirring means it is characterised in that anaerobic fermentation serosity solid content concentration is 20-30%.
3. a kind of anaerobic fermentation serosity strength according to claim 1 moves stirring means it is characterised in that film decarbonation appliance（3）Outlet offgas outlet pressure carbon dioxide is 80-100KPa afterwards.
4. a kind of anaerobic fermentation serosity strength according to claim 1 moves stirring means it is characterised in that pressure is 5-6 kilogram after carbon dioxide compression.
5. a kind of anaerobic fermentation serosity pneumatic agitation method according to claim 1 is it is characterised in that shower nozzle（9）It is evenly arranged in whole anaerobic fermentation pot bottom, adjacent shower nozzle（9）Distance in 300 ~ 600mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210370247.7A CN114591821A (en) | 2015-08-20 | 2015-08-20 | Pneumatic stirring system of biomass anaerobic fermentation tank |
| CN201510512089.4A CN106467889A (en) | 2015-08-20 | 2015-08-20 | A kind of biomass anaerobic fermentation tank pneumatic agitation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510512089.4A CN106467889A (en) | 2015-08-20 | 2015-08-20 | A kind of biomass anaerobic fermentation tank pneumatic agitation system |
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| CN202210370247.7A Division CN114591821A (en) | 2015-08-20 | 2015-08-20 | Pneumatic stirring system of biomass anaerobic fermentation tank |
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| CN106467889A true CN106467889A (en) | 2017-03-01 |
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| CN201510512089.4A Pending CN106467889A (en) | 2015-08-20 | 2015-08-20 | A kind of biomass anaerobic fermentation tank pneumatic agitation system |
| CN202210370247.7A Pending CN114591821A (en) | 2015-08-20 | 2015-08-20 | Pneumatic stirring system of biomass anaerobic fermentation tank |
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| CN202210370247.7A Pending CN114591821A (en) | 2015-08-20 | 2015-08-20 | Pneumatic stirring system of biomass anaerobic fermentation tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906128A (en) * | 2017-05-08 | 2017-06-30 | 西南交通大学 | A kind of diphasic anaerobic fermentation system of application dynamic hydraulic combined stirring |
| CN108623116A (en) * | 2018-05-28 | 2018-10-09 | 黑龙江省农业科学院农村能源研究所 | A kind of gas circulation stirring pulling flow type anaerobic fermentation reaction unit |
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|---|---|---|---|---|
| US6180396B1 (en) * | 1998-03-13 | 2001-01-30 | Research Institute Of Innovative Technology For The Earth | Carbon producing apparatus utilizing biomass |
| CN101265447A (en) * | 2008-05-04 | 2008-09-17 | 东北农业大学 | Firedamp biphasic anaerobic fermentation gas stirring system |
| CN201634679U (en) * | 2010-02-08 | 2010-11-17 | 张华� | Anaerobic fermentation biogas stirring device |
| CN102559316A (en) * | 2011-12-31 | 2012-07-11 | 浙江工业大学 | Methane purifying method and equipment thereof |
| CN202322831U (en) * | 2011-11-24 | 2012-07-11 | 新奥科技发展有限公司 | Methane and landfill gas utilization system |
| CN102876567A (en) * | 2012-10-30 | 2013-01-16 | 南京通用电气装备有限公司 | Biomass anaerobic fermentation tank stirring and heating method and biomass anaerobic fermentation tank stirring and heating system |
| CN103930538A (en) * | 2011-06-30 | 2014-07-16 | 伊内奥斯生物股份公司 | Method and apparatus for syngas fermentation with high CO mass transfer coefficient |
| CN104804790A (en) * | 2015-04-13 | 2015-07-29 | 天紫环保投资控股有限公司 | Resourceful treatment system adopting straw to produce biogas and having efficient desulphurization and decarbonization functions |
-
2015
- 2015-08-20 CN CN201510512089.4A patent/CN106467889A/en active Pending
- 2015-08-20 CN CN202210370247.7A patent/CN114591821A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180396B1 (en) * | 1998-03-13 | 2001-01-30 | Research Institute Of Innovative Technology For The Earth | Carbon producing apparatus utilizing biomass |
| CN101265447A (en) * | 2008-05-04 | 2008-09-17 | 东北农业大学 | Firedamp biphasic anaerobic fermentation gas stirring system |
| CN201634679U (en) * | 2010-02-08 | 2010-11-17 | 张华� | Anaerobic fermentation biogas stirring device |
| CN103930538A (en) * | 2011-06-30 | 2014-07-16 | 伊内奥斯生物股份公司 | Method and apparatus for syngas fermentation with high CO mass transfer coefficient |
| CN202322831U (en) * | 2011-11-24 | 2012-07-11 | 新奥科技发展有限公司 | Methane and landfill gas utilization system |
| CN102559316A (en) * | 2011-12-31 | 2012-07-11 | 浙江工业大学 | Methane purifying method and equipment thereof |
| CN102876567A (en) * | 2012-10-30 | 2013-01-16 | 南京通用电气装备有限公司 | Biomass anaerobic fermentation tank stirring and heating method and biomass anaerobic fermentation tank stirring and heating system |
| CN104804790A (en) * | 2015-04-13 | 2015-07-29 | 天紫环保投资控股有限公司 | Resourceful treatment system adopting straw to produce biogas and having efficient desulphurization and decarbonization functions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906128A (en) * | 2017-05-08 | 2017-06-30 | 西南交通大学 | A kind of diphasic anaerobic fermentation system of application dynamic hydraulic combined stirring |
| CN108623116A (en) * | 2018-05-28 | 2018-10-09 | 黑龙江省农业科学院农村能源研究所 | A kind of gas circulation stirring pulling flow type anaerobic fermentation reaction unit |
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| Publication number | Publication date |
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| CN114591821A (en) | 2022-06-07 |
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