CN106967588A - Biological material forms methane device and generation method - Google Patents
Biological material forms methane device and generation method Download PDFInfo
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- CN106967588A CN106967588A CN201710181163.8A CN201710181163A CN106967588A CN 106967588 A CN106967588 A CN 106967588A CN 201710181163 A CN201710181163 A CN 201710181163A CN 106967588 A CN106967588 A CN 106967588A
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- 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
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
-
- 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
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
-
- 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
-
- 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
Formed methane device and generation method the present invention relates to a kind of biological material.Existing production biogas method pre-processing period is long, and biogas yield is low, it is necessary to add supplement N sources amount greatly, biogas cost is high, and pretreating effect is poor.Present invention composition includes：Anaerobic device（1）, oxidation unit（8）, described oxidation unit includes oxidation reactor（6）, described oxidation reactor respectively with heater（5）, heat exchanger（4）, catalyst circulating pump（7）Connected by pipeline, described heater is connected with described heat exchanger by pipeline, described heat exchanger respectively with pressurizer（3）, cooler（14）Connected by pipeline, described pressurizer and lignin separation device（2）Connected by pipeline, described lignin separation device is connected with described anaerobic device by pipeline.The present invention forms methane device and generation for biological material.
Description
Technical field：
Formed methane device and generation method the present invention relates to a kind of biological material.
Background technology：
China is large agricultural country, is one of stalk resource the abundantest country in the world, counts according to investigations, national straw in 2010
Stalk theoretical resources amount is 8.4 hundred million t, and collectable stock number is about 700,000,000 t, still, due to lacking effective processing mode, be there are about
2.47 hundred million t stalk goes out of use or directly burned, and not only pollutes environment, is even more the significant wastage to resource, stalk conduct
A kind of biomass energy of high-quality, alternative part fossil energy, straw methane fermentation energy utilization efficiency directly burns
1.2-1.9 times, while the accessory substance biogas residue and biogas liquid produced, because it is rich in nutrients such as nitrogen, phosphorus, is effectively applied to agriculture
Industry is produced, and improves crop yield, in recent years, and with the gradually maturation of stalk anaerobic fermentation technology, straw methane engineering is more next
More paid close attention to by people, the method for existing production biogas is all that the agricultural wastes such as stalk are entered into pretreatment after crushing
Pond, the regulation moisture that adds water to 60%, addition urea or sulphur ammonium supplement N sources stack retting enter pond, pre-process within closed 7-10 days, pre- place
Material delivers to methane-generating pit fermentation and biogas production after reason, and the method pre-processing period is long, and biogas yield is low, it is necessary to add supplement N
Source amount is larger, and biogas cost is high, and pretreating effect is poor, and biogas output is generally less than dry straw 270NM per ton3。
The content of the invention：
Formed methane device and generation method it is an object of the invention to provide a kind of biological material, improve biogas formation speed and
Ratio.
Above-mentioned purpose is realized by following technical scheme：
A kind of biological material forms methane device, and its composition includes：Anaerobic device, oxidation unit, described oxidation unit bag
Oxidation reactor is included, described oxidation reactor is connected with heater, heat exchanger, catalyst circulating pump by pipeline respectively,
Described heater is connected with described heat exchanger by pipeline, and described heat exchanger leads to pressurizer, cooler respectively
Pipeline connection is crossed, described pressurizer is connected with lignin separation device by pipeline, described lignin separation device and described
Anaerobic device is connected by pipeline.
Described biological material is formed methane device, and described cooler is connected with pressure reducer A by pipeline, described
Pressure reducer A is connected with milipore filter by pipeline, and described milipore filter is connected with pressure reducer B by pipeline, described pressure reducer B with
Degassing tank is connected by pipeline, and described degassing tank is connected with described anaerobic device by pipeline.
Described biological material is formed methane device, and described catalyst circulating pump is connected with counter-osmosis device by pipeline
Connect.
The method formed methane using the equipment described in one of claim 1-3 using biological material, it is characterized in that：Should
Method comprises the following steps：By pretreated animal wastes and stalk blending transportation to fermentation vat, the amount of animal wastes is straw
The 15%-20% of stalk, adds urea, and one kilogram of stalk adds 50g urea, and supplement nitrogen source is conducive to thalline to produce, with process water and
The regulation of fermentation vat material is arrived dry matter content 12% by alcohol waste mash, under conditions of 53-55 DEG C of temperature, by the feed liquid regulated
Anaerobic fermentation is carried out by being pumped into anaerobic device, anaerobic device includes mixed anaerobic reactor and UASB anaerobic reactions entirely
Device, the material by complete mixed anaerobic reactor initial breakdown enters UASB anaerobic reactors, and reaction temperature is 53-55 DEG C, two
Depth anaerobic fermentation acquisition biogas, biogas residue and biogas slurry, UASB anaerobic reactors natural pond must be carried out by planting stalk in reactor, animal wastes
The cellulose that liquid is effectively degraded by isolated lignin and failing, lignin and cellulose pass through oxidation unit, in oxidation
Temperature of reactor be 250-350 DEG C, pressure be 20-25mpa under conditions of, using potassium hydroxide as catalyst, catalyst
Addition is 5-the 10% of the lignin and cellulose total content entered in oxidation reactor, wherein reacting PH>7, use oxygen
Or hydrogen peroxide carries out chain rupture oxidation to the lignin such as stalk raw material as oxidant, the content of oxygen or hydrogen peroxide for 5%-10% its
Middle oxidation time is 2-5min, and above-mentioned material is carried out into chain rupture produces the dissolved organic matters such as aldehydic acid class, reenters and detests
Oxygen device produces substantial amounts of biogas through original methane backeria metabolism in tank, and the biogas that two kinds of anaerobic reactors are produced enters biogas gas
High-purity bio-natural gas supply down-stream enterprise is made through techniques such as desulfurization, dehydration, decarburizations in biogas in cabinet, gas holder, discharges UASB
The waste water of anaerobic reactor concentrate after UF UF membranes carries out reentering the progress of UASB anaerobic reactors after oxidative cleavage
Again anaerobic fermentation produces biogas, and UF membrane permeate is delivered to RO systems and is further processed, and RO permeate obtains process water
It is fed directly to Alcohol Plant and biogas power plant uses, it is day to be mainly N, P, K salt contained in stalk in RO films throttling concentrate
Right bio-feritlizer, carries out four-effect evaporation concentration, an effect temperature is 107 DEG C by the concentrate, and pressure is 0.105Mpa, two effect temperature
Spend for 97 DEG C, carried out under atmospheric pressure state, triple effect temperature is 82-85 DEG C, pressure is -0.03Mpa extremely -0.06Mpa, quadruple effect temperature
For 67-70 DEG C, pressure is -0.01Mpa to -0.1Mpa, and bio-feritlizer is obtained after being dried to moisture less than 10%.
Beneficial effect：
1. the present invention, which is a kind of biological material, to form methane device and generation method, eliminate stalk heap and irritate pretreatment, raising
Utilization rate, using waste water fermentation two-stage membrane filtration structure, system water can reuse save resource.
The present invention also produces the biomass fertilizers rich in N, P, k while degrading straw the like waste produces biogas, adopts
The further oxidative cleavage of conventional waste water biogas residue is generated into the dissolved organic matters such as aldehydic acid with oxidation unit and carries out depth degradation life
Biogas is produced, the yield ton stalk production biogas that biogas is greatly improved is more than 600NM3, the oxidant used in oxidation reactor is
Oxygen or hydrogen peroxide, oxidation unit are operated using HTHP.
The content that oxidation improves methane in sewage gas gas is carried out to biogas residue present invention employs oxidation unit, by original one
As 50% methane content bring up to 65% methane gas content.
Stalk and animal wastes blending transportation to fermentation vat after the present invention will be pre-processed, addition urea supplement nitrogen source are conducive to
Thalline is produced.
The regulation of fermentation vat material is arrived dry matter content 12% by present invention process water and alcohol waste mash, in temperature 53-55
Under conditions of DEG C, the feed liquid regulated is subjected to anaerobic fermentation by being pumped into anaerobic device, is metabolized by anaerobic fermentation
Time is fast, and floor space is small, and volumetric loading rate is more than 8kg/m3,
3.. the present invention by the material of complete mixed anaerobic reactor initial breakdown by entering UASB anaerobic reactors, in two kinds of reactions
Stalk, animal wastes must carry out depth anaerobic fermentation and obtain biogas, biogas residue and biogas slurry in device, and UASB anaerobic reactors use gas
Stirring technique, volumetric loading rate is higher, and rate of load condensate is 10-12 kg/m3
4. the catalyst loading of the present invention is 5-the 10% of the lignin and cellulose total content entered in oxidation reactor, its
Middle reaction PH>7, chain rupture oxidation is carried out to the lignin such as stalk raw material using oxygen or hydrogen peroxide as oxidant, wherein aoxidizing
Reaction time is 2-5min, and the progress chain rupture of above-mentioned material can be produced into the dissolved organic matters such as aldehydic acid class.
By the waste water of discharge UASB anaerobic reactors, the concentrate after UF UF membranes carries out weight after oxidative cleavage to the present invention
The new UASB anaerobic reactors that enter carry out again anaerobic fermentation production biogas, and UF membrane permeate is delivered to RO films and further located
Reason, using water wisely reduces the use of a water.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the flow chart of present invention production biogas.
Embodiment：
Embodiment 1：
A kind of biological material forms methane device, and its composition includes：Anaerobic device 1, oxidation unit 8, described oxidation unit
Including oxidation reactor 6, described oxidation reactor passes through pipeline with heater 5, heat exchanger 4, catalyst circulating pump 7 respectively
Connection, described heater is connected with described heat exchanger by pipeline, described heat exchanger respectively with pressurizer 3, cold
But device 14 is connected by pipeline, and described pressurizer is connected with lignin separation device 2 by pipeline, described lignin separation device
It is connected with described anaerobic device by pipeline.
Embodiment 2：
Biological material according to embodiment 1 forms methane device, described cooler and pressure reducer A, piece number：13 pass through
Pipeline is connected, and described pressure reducer A is connected with milipore filter 12 by pipeline, described milipore filter and pressure reducer B, piece number：11 lead to
Pipeline connection is crossed, described pressure reducer B is connected with degassing tank 10 by pipeline, described degassing tank leads to described anaerobic device
Cross pipeline connection.
Embodiment 3：
Biological material according to embodiment 1 or 2 forms methane device, described catalyst circulating pump and counter-osmosis device 9
Connected by pipeline.
Embodiment 4：
The method that device described in a kind of one of embodiment 1-3 is formed methane using biological material, this method includes following step
Suddenly：By pretreated animal wastes and stalk blending transportation to fermentation vat, the amount of animal wastes is the 15%-20% of stalk, plus
Enter urea, one kilogram of stalk adds 50g urea, and supplement nitrogen source is conducive to thalline to produce, and will be soaked with process water and alcohol waste mash
Steep the regulation of pond material and arrive dry matter content 12%, under conditions of 53-55 DEG C of temperature, the feed liquid regulated is detested by being pumped into
Anaerobic fermentation is carried out in oxygen device, anaerobic device includes mixed anaerobic reactor and UASB anaerobic reactors entirely, by complete mixed anaerobism
The material of reactor initial breakdown enter UASB anaerobic reactors, reaction temperature be 53-55 DEG C, in two kinds of reactors stalk,
Animal wastes must carry out depth anaerobic fermentation and obtain biogas, biogas residue and biogas slurry, and UASB anaerobic reactors biogas slurry is by isolated
The cellulose that lignin and failing effectively is degraded, lignin and cellulose pass through oxidation unit, are in oxidation reactor temperature
250-350 DEG C, pressure is under conditions of 20-25mpa, using potassium hydroxide as catalyst, catalyst loading is entrance
5-10% of lignin and cellulose total content in oxidation reactor, wherein reacting PH>7, using oxygen or hydrogen peroxide as
Oxidant carries out chain rupture oxidation to the lignin such as stalk raw material, the content of oxygen or hydrogen peroxide for 5%-10% wherein oxidation reaction when
Between be 2-5min, above-mentioned material is carried out into chain rupture produces the dissolved organic matter such as aldehydic acid class, reenters anaerobic device through in tank
Original methane backeria metabolism produces substantial amounts of biogas, and the biogas that two kinds of anaerobic reactors are produced enters biogas in biogas gas holder, gas holder
High-purity bio-natural gas supply down-stream enterprise is made through techniques such as desulfurization, dehydration, decarburizations, the useless of UASB anaerobic reactors is discharged
Water concentrate after UF UF membranes carries out reentering UASB anaerobic reactors progress anaerobic fermentation life again after oxidative cleavage
Biogas is produced, UF membrane permeate is delivered to RO systems and is further processed, and RO permeate obtains process water and is fed directly to Alcohol Plant
And biogas power plant uses, it is natural bio-feritlizer to be mainly N, P, K salt contained in stalk in RO films throttling concentrate, will
The concentrate carries out four-effect evaporation concentration, and an effect temperature is 107 DEG C, and pressure is 0.105Mpa, and two effect temperature are 97 DEG C, in normal pressure
Carried out under state, triple effect temperature is 82-85 DEG C, pressure is -0.03Mpa to -0.06Mpa, quadruple effect temperature is 67-70 DEG C, pressure
For -0.01Mpa to -0.1Mpa, bio-feritlizer is obtained after being dried to moisture less than 10%.
Claims (4)
- A kind of device 1. biological material forms methane, its composition includes：Anaerobic device, oxidation unit, it is characterized in that：Described Oxidation unit includes oxidation reactor, and described oxidation reactor passes through with heater, heat exchanger, catalyst circulating pump respectively Pipeline is connected, and described heater is connected with described heat exchanger by pipeline, described heat exchanger respectively with pressurizer, Cooler is connected by pipeline, and described pressurizer is connected with lignin separation device by pipeline, described lignin separation device It is connected with described anaerobic device by pipeline.
- The device 2. biological material according to claim 1 forms methane, it is characterized in that：Described cooler and pressure reducer A is connected by pipeline, and described pressure reducer A is connected with milipore filter by pipeline, and described milipore filter passes through pipeline with pressure reducer B Connection, described pressure reducer B is connected with degassing tank by pipeline, and described degassing tank is connected with described anaerobic device by pipeline Connect.
- The device 3. biological material according to claim 1 forms methane, it is characterized in that：Described catalyst circulating pump with Counter-osmosis device is connected by pipeline.
- 4. the method that the equipment described in a kind of one of utilization claim 1-3 is formed methane using biological material, it is characterized in that： This method comprises the following steps：By pretreated animal wastes and stalk blending transportation to fermentation vat, the amount of animal wastes is The 15%-20% of stalk, adds urea, and one kilogram of stalk adds 50g urea, and supplement nitrogen source is conducive to thalline to produce, uses process water And the regulation of fermentation vat material is arrived dry matter content 12% by alcohol waste mash, under conditions of 53-55 DEG C of temperature, by the material regulated Liquid carries out anaerobic fermentation by being pumped into anaerobic device, and anaerobic device includes mixed anaerobic reactor and UASB anaerobic reactions entirely Device, the material by complete mixed anaerobic reactor initial breakdown enters UASB anaerobic reactors, and reaction temperature is 53-55 DEG C, two Depth anaerobic fermentation acquisition biogas, biogas residue and biogas slurry, UASB anaerobic reactors natural pond must be carried out by planting stalk in reactor, animal wastes The cellulose that liquid is effectively degraded by isolated lignin and failing, lignin and cellulose pass through oxidation unit, in oxidation Temperature of reactor be 250-350 DEG C, pressure be 20-25mpa under conditions of, using potassium hydroxide as catalyst, catalyst Addition is 5-the 10% of the lignin and cellulose total content entered in oxidation reactor, wherein reacting PH>7, use oxygen Or hydrogen peroxide carries out chain rupture oxidation to the lignin such as stalk raw material as oxidant, the content of oxygen or hydrogen peroxide for 5%-10% its Middle oxidation time is 2-5min, and above-mentioned material is carried out into chain rupture produces the dissolved organic matters such as aldehydic acid class, reenters and detests Oxygen device produces substantial amounts of biogas through original methane backeria metabolism in tank, and the biogas that two kinds of anaerobic reactors are produced enters biogas gas High-purity bio-natural gas supply down-stream enterprise is made through techniques such as desulfurization, dehydration, decarburizations in biogas in cabinet, gas holder, discharges UASB The waste water of anaerobic reactor concentrate after UF UF membranes carries out reentering the progress of UASB anaerobic reactors after oxidative cleavage Again anaerobic fermentation produces biogas, and UF membrane permeate is delivered to RO systems and is further processed, and RO permeate obtains process water It is fed directly to Alcohol Plant and biogas power plant uses, it is day to be mainly N, P, K salt contained in stalk in RO films throttling concentrate Right bio-feritlizer, carries out four-effect evaporation concentration, an effect temperature is 107 DEG C by the concentrate, and pressure is 0.105Mpa, two effect temperature Spend for 97 DEG C, carried out under atmospheric pressure state, triple effect temperature is 82-85 DEG C, pressure is -0.03Mpa extremely -0.06Mpa, quadruple effect temperature For 67-70 DEG C, pressure is -0.01Mpa to -0.1Mpa, and bio-feritlizer is obtained after being dried to moisture less than 10%.
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| CN201710181163.8A CN106967588A (en) | 2017-03-24 | 2017-03-24 | Biological material forms methane device and generation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110777169A (en) * | 2019-12-17 | 2020-02-11 | 北京盈和瑞环境科技股份有限公司 | Biogas production method based on lignocellulose |
| CN111848243A (en) * | 2020-07-27 | 2020-10-30 | 广西大学 | Compost decomposing method for accelerating lignocellulose degradation |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777169A (en) * | 2019-12-17 | 2020-02-11 | 北京盈和瑞环境科技股份有限公司 | Biogas production method based on lignocellulose |
| CN111848243A (en) * | 2020-07-27 | 2020-10-30 | 广西大学 | Compost decomposing method for accelerating lignocellulose degradation |
| CN111848243B (en) * | 2020-07-27 | 2022-05-17 | 广西大学 | Compost decomposing method for accelerating lignocellulose degradation |
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