CN110452932A - Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel process and system - Google Patents

Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel process and system Download PDF

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CN110452932A
CN110452932A CN201910827365.4A CN201910827365A CN110452932A CN 110452932 A CN110452932 A CN 110452932A CN 201910827365 A CN201910827365 A CN 201910827365A CN 110452932 A CN110452932 A CN 110452932A
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algae
solar energy
microalgae
biomass
residue
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廖强
富经纬
黄云
夏奡
付乾
李俊
朱恂
朱贤青
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Chongqing University
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
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    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/102—Removal of contaminants of acid contaminants
    • C10L3/104—Carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
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    • C11B1/10—Production of fats or fatty oils from raw materials by extracting
    • 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
    • C12M21/02—Photobioreactors
    • 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
    • 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
    • C12M43/00—Combinations of bioreactors or fermenters with other apparatus
    • 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
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
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    • 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
    • C12P3/00—Preparation of elements or inorganic compounds except carbon dioxide
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    • 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
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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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    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/59—Biological synthesis; Biological purification

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Abstract

The invention discloses Driven by Solar Energy biochemistry thermochemical studies to produce microalgae fuel process and system；A kind of method that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel, which is characterized in that complete according to the following steps: microdisk electrode and periodically harvest step 1: are carried out in microalgae High Density Cultivation and recovery system；Step 2: the algae slurry of harvest is passed through progress hydro-thermal hydrolysis, products therefrom in solar energy hydrothermal pretreatment system and is separated in solid-liquid separator, hydro-thermal hydrolyzate and algae-residue are obtained；Step 3: hydro-thermal hydrolyzate is passed through generation gas in biomass ferment gas system, algae-residue carries out oil extraction first, resulting grease enters for producing biodiesel in biomass bio oil refining system, and the algae-residue after degreasing is passed through generation gas in biomass ferment gas system；Step 4: biogas purification is carried out using sodium carbonate and recycles CO2For microdisk electrode；System is by solar photovoltaic powered.The present invention can be widely used in the energy, etc. fields.

Description

Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel process and system
Technical field
The present invention relates to field of renewable energy resource utilization, and in particular to a kind of Driven by Solar Energy biochemistry thermochemical study is produced Microalgae fuel process and system.
Background technique
With the progress of China's science and technology and flourishing for society, people increasingly increase the demand of fossil fuel Greatly, however since the political situation of international petroleum exporting country is frequently wavy, so that the supply stability of fossil fuel is increasingly subject to influence. In addition, the burning of a large amount of fossil fuels has also been further exacerbated by greenhouse effects and environmental pollution.Therefore, it is by renewable biomass Research of the waste green biofuels for substitute fossil fuels has become focus concerned by people
Among extensive biomass fuel raw material, the productivity of algae accounts for about the 45% of global total plant productivity, therefore Algae photosynthesis is for maintaining the normal operation of terrestrial ecosystem to play a key role.In numerous algae, microalgae is made It is able to achieve photoautotrophic unicellular microorganism for one kind, because it is high with photosynthetic efficiency, the speed of growth is fast, adaptive capacity to environment By force, grease and carbohydrate content it is high, not with plough and drink water phase competition, it is widely used the features such as, be widely used in Greenhouse gases (predominantly carbon dioxide) in fixed power-plant flue gas are to alleviate the trend of global warming and produce life Object fuel is to solve the problems, such as energy shortage, it is considered to be a kind of third generation of the manufacture bio-fuel with good prospect is former Material.Currently, the bio-fuel produced using microalgae biomass mainly using biodiesel as the liquid fuel of representative and with hydrogen, Methane is the fuel gas two major classes of representative.Its method for transformation mainly have direct ester-interchange method, microbe fermentation method, pyrolysismethod, Hydro-thermal evaporating method, hydrothermal liquefaction method etc..According to statistics, if the microalgae of 1 kilogram of culture, can fix 1.83kg CO2, generation Diesel oil 0.3kg, biological flue gas 370L.
However, produce bio-fuel using microalgae biomass also faces many ask while showing tempting development prospect Topic, for example, 1) the large-scale microdisk electrode of industrialization is however unstable due to outdoor illumination often based on photoautotrophy culture Cause the microalgae biomass concentration under the training mode generally relatively low, to also increase the cost of harvesting；2) after using drying Microalgae production energy products Process Energy " unable to make ends meet "；3) algae slurry preprocessing process and biofuel conversion process energy consumption Height, low efficiency；4) entire biomass produce bio-fuel process recycling property it is poor etc..
Summary of the invention
The present invention in view of the deficienciess of the prior art, propose a kind of Driven by Solar Energy biochemistry thermochemical study produce it is micro- Algae fuel process and system, solve it is traditional using microalgae biomass produce microalgae biomass low output during bio-fuel, Complicated for operation, the problems such as energy consumption is high, at high cost, cyclicity is poor.
The technical scheme is that a kind of method that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel, It is characterized in that, completes according to the following steps:
Step 1: being seeded to progress semi continuous culture in microalgae High Density Cultivation and recovery system for fresh algae, and Periodically algae solution is concentrated and is harvested.
Step 2: the high concentration algae slurry of harvest is passed through progress hydro-thermal hydrolysis in solar energy hydrothermal pretreatment system, hydrolysis Products therefrom is separated in solid-liquid separator after the completion, obtains hydro-thermal hydrolyzate and algae-residue.
Step 3: separating obtained hydro-thermal hydrolyzate is passed into biomass ferment gas system, separating obtained algae-residue Oil extraction is carried out first, and the resulting grease of oil extraction enters in biomass bio oil refining system for producing biological bavin Oil, the algae-residue after degreasing are then passed into biomass ferment gas system；Biomass ferment gas system to hydro-thermal hydrolyzate and Algae-residue after degreasing first carries out acidification, then carries out two-step method anaerobic fermentation production hydrogen mixed gas and biogas.
Step 4: hydrogen mixed gas and biogas that anaerobic fermentation generates are passed through progress decarburization purification in sodium carbonate liquor and obtained Pure hydrogen and methane gas are obtained, the sodium carbonate liquor for absorbing great amount of carbon dioxide is converted into sodium bicarbonate solution, by carbonic acid Hydrogen sodium solution is passed through in microalgae High Density Cultivation and recovery system for microdisk electrode, and is passed through the resulting culture solution of harvesting and then weighed Newly it is back to the absorption that carbon dioxide is used in sodium carbonate liquor.
Second technical solution of the invention be, what a kind of Driven by Solar Energy biochemistry thermochemical study produced microalgae fuel is System, including it is photovoltaic and power storage system, microalgae High Density Cultivation and recovery system, solar energy hydrothermal pretreatment system, solid Liquid/gas separator, biomass ferment gas system, biomass bio oil refining system and oil extraction device；It is characterized by:
The photovoltaic and power storage system are powered system for being converted to electric energy using luminous energy；The photovoltaic and storage Solar silicon photovoltaic cell plate and battery are provided in system.
The microalgae High Density Cultivation and recovery system are used to carry out semi continuous culture, concentration to algae using solar energy And harvest, and the algae of harvest slurry is output to the solar energy hydrothermal pretreatment system；
The solar energy hydrothermal pretreatment system, which is used to starch algae using solar energy, carries out hydro-thermal hydrolysis；Institute after the completion of hydrolysis Product is obtained to be output in solid-liquid separator；Trough type solar heat-collector is provided in the solar energy hydrothermal pretreatment system.
The solid-liquid separator obtains hydro-thermal hydrolyzate and algae-residue for separating to products therefrom after the completion of hydrolysis； And hydro-thermal hydrolyzate and algae-residue are respectively outputted to the biomass ferment gas system and oil extraction device；The solid-liquid point Device is provided with inlet, solid-phase outlet and liquid-phase outlet.
The biomass ferment gas system be used for hydro-thermal hydrolyzate and and degreasing after algae-residue carry out acidification, and Anaerobic fermentation produces hydrogen and biogas；The biomass ferment gas system is provided with novel evacuated solar energy heating formula open air liter Flow anaerobic mud bed reactor.
The oil extraction device is used to carry out the algae-residue isolated oil extraction in solid-liquid separator, and by degreasing algae Slag is output to the biomass ferment gas system, while resulting grease is output to biomass bio oil refining system.
The biomass bio oil refining system is used to utilize grease production biodiesel.
Driven by Solar Energy biochemistry thermochemical study according to the present invention produces the preferred embodiment of the system of microalgae fuel, The system for producing microalgae fuel further includes decarburization purification system, and decarburization purification system is used for biomass ferment gas system The hydrogen and biogas of generation carry out decarburization purification；The decarburization purification system utilizes the culture of microalgae High Density Cultivation and recovery system The carbon absorption liquid for absorbing great amount of carbon dioxide is output to microalgae High Density Cultivation and harvesting system as carbon absorption liquid, and again by liquid System is used as culture solution.
I.e. the decarburization purification system is using the culture solution of microalgae High Density Cultivation and recovery system to biomass ferment gas The hydrogen and biogas that system generates carry out decarburization purification, are then again output to the carbon absorption liquid for absorbing great amount of carbon dioxide micro- Algae High Density Cultivation and recovery system are as culture solution.
Driven by Solar Energy biochemistry thermochemical study of the present invention produces the beneficial effect of microalgae fuel process and system It is:
1), the present invention is realized at microalgae High Density Cultivation and flue gas using microalgae High Density Cultivation and recovery system (2) Reason intercouples with sewage treatment.
2) modified cationic starch and water-absorbing resin, are introduced into microalgae recovery system, can be realization high efficiency, low cost Microalgae recovery.
3) coproduction of the advantage realization hydrogen and methane of hydro-thermal method and two-step method microbiological anaerobic fermentation method and micro- is combined The conversion of algal biomass full constituent and the energy source for utilizing, and being hydrolyzed using solar energy as hydro-thermal are solved microalgae hydrothermal liquefaction and located in advance The energy consumption problem of reason.
4) it can use sodium carbonate liquor and realize hydrogen and the decarburization purification of biogas and intercoupling for microdisk electrode.
5) electric energy is provided to realize energy conservation and energy storage for whole system operation using solar powered technology.
The present invention can be widely used in the fields such as the energy, environmental protection.
Detailed description of the invention
Fig. 1 is that Driven by Solar Energy biochemistry thermochemical study of the present invention produces microalgae fuel process flow diagram.
Fig. 2 is the structural representation that Driven by Solar Energy biochemistry thermochemical study of the present invention produces microalgae fuel system Figure.
Specific embodiment
Technical solution of the present invention is described in more detail with specific implementation example with reference to the accompanying drawing.But it answers This points out, implementation of the invention embodiment not limited to the following.
Referring to Fig. 1 to Fig. 2, a kind of method that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel realizes the party Microalgae High Density Cultivation and recovery system 2 used by method, solar energy hydrothermal pretreatment system 3, solid-liquid separator 4, biomass Gas system 5 processed, oil extraction device 6 and the biomass bio oil refining system 7 of fermenting and decarburization purification system 8 can by photovoltaic and Power storage system 1 is powered, and is completed according to the following steps:
Step 1: fresh algae is seeded to the bioreactor in microalgae High Density Cultivation and recovery system 2 and is carried out Semi continuous High Density Cultivation, and utilize modified cationic starch and water-absorbing resin etc. periodically by algae solution using efficient percentage recovery It is concentrated and is harvested；To guarantee that microalgae concentration is in always in most suitable range in reactor, under the concentration, microalgae cell With the highest growth rate；The resulting culture solution of microalgae recovery is then back in decarburization purification system 8 again for carbon dioxide Absorption.
Step 2: being passed through progress hydro-thermal hydrolysis in solar energy hydrothermal pretreatment system 3 for the high concentration algae slurry of harvest, highly concentrated It spends algae slurry and realizes hydro-thermal hydrolysis, the objects such as carbon hydrate, protein in microalgae cell under the heating of trough type solar heat-collector Matter is largely precipitated, and products therefrom contains partially complete frustule, a large amount of non-degreasing algae-residues and hydro-thermal after the completion of hydrolysis Hydrolyzate 4 is separated in solid-liquid separator, obtains hydro-thermal hydrolyzate and algae-residue.
Step 3: separating obtained hydro-thermal hydrolyzate is passed into biomass ferment gas system 5, first with hydrolyzate In carbohydrate, organic acid be that substrate uses Escherichia coli fermentation hydrogen manufacturing, then with organic acid, amino acid for being discharged in tail washings etc. the bottom of for The mode of microbiological anaerobic fermentation hydrogen making and methane that object carries out methanogen fermentation improves the utilization rate of hydrolyzate；Separation Resulting algae-residue carries out oil extraction first, and the resulting grease of oil extraction, which enters in biomass bio oil refining system 7, to be used for Biodiesel is produced, the algae-residue after degreasing is then passed into biomass ferment gas system 5, is sent out using anaerobic methanogens solid-state The substances such as remaining cell wall cellulose and protein produce methane in ferment algae-residue；Biomass ferment gas system 5 is to hydro-thermal water Algae-residue after solution liquid and degreasing first carries out acidification, then carries out two-step method anaerobic fermentation production hydrogen mixed gas and biogas.
Step 4: the hydrogen mixed gas H that anaerobic fermentation is generated2And CO2With biogas CH4And CO2It is passed through in sodium carbonate liquor It carries out decarburization purification and obtains pure hydrogen and methane gas, the sodium carbonate liquor for absorbing great amount of carbon dioxide is converted into bicarbonate Sodium solution, sodium bicarbonate solution are one of carbon source needed for micro algae growth, by sodium bicarbonate solution be passed through microalgae High Density Cultivation and It is used for microdisk electrode in recovery system 2, while supplementing quantitative nutritive salt in bioreactor, such as nitrogenous fertilizer, phosphate fertilizer.And Then it is back to the absorption that carbon dioxide is used in sodium carbonate liquor again by the resulting culture solution of harvesting.
Step 5: during continuous operation, real-time monitoring simultaneously adjusts raceway pond in microalgae High Density Cultivation and recovery system 2 Guarantee the normal growth of microalgae with the environmental condition pH of closed photo bioreactor, temperature, illumination etc., solar energy hydro-thermal is pre- Stream between the systems such as processing system 3, solid-liquid separator 4, biomass ferment gas system 5 and biomass bio oil refining system 7 Amount, temperature, pressure etc..
The present invention works as microalgae suspension in the bioreactor in microalgae High Density Cultivation and recovery system 2 and reaches setting Biomass concentration when, microalgae suspension by bioreactor liquid outlet enter efficient recovering device be concentrated and adopted It receives, obtained highly concentrated algae slurry enters heat collector from trough type solar heat-collector inlet and carries out hydro-thermal hydrolysis pretreatment, Pretreated product is hydrolyzed by hydro-thermal and enters solid-liquid separator, and the hydro-thermal hydrolyzate of resulting separation enters vacuous solar energy Heat collecting type open air upflow anaerobic sludge blanket reactor carry out acidification and two-step method anaerobic fermentation produce biogas hydrogen mixed gas and Methane gas, the algae-residue of resulting separation carry out acidification and two steps by entering biomass ferment gas system 5 after oil extraction Method anaerobic fermentation produces biogas, extracts resulting grease and enters the biomass bio oil refining progress biological diesel oil refining of system 5. The hydrogen mixed gas H that two-step method anaerobic fermentation generates2And CO2With biogas CH4And CO2Sodium carbonate is passed through in decarburization purification system 8 Solution carries out decarburization purification and obtains more pure hydrogen and methane gas, absorbs the sodium carbonate liquor conversion of great amount of carbon dioxide For sodium bicarbonate solution, into being used for microdisk electrode in microalgae High Density Cultivation and recovery system 2, and through and harvesting resulting training Nutrient solution is then back to the absorption that carbon dioxide is used in sodium carbonate liquor again.
A kind of system that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel, including photovoltaic and storage system System 1, microalgae High Density Cultivation and recovery system 2, solar energy hydrothermal pretreatment system 3, solid-liquid separator 4, biomass ferment system Gas system 5, oil extraction device 6 and biomass bio oil refine system 7.
The photovoltaic and power storage system 1 are powered system for being converted to electric energy using luminous energy；The photovoltaic and storage Solar silicon photovoltaic cell plate and battery are provided in electric system 1.
The microalgae High Density Cultivation and recovery system 2 are used for using solar energy to algae progress semi continuous culture, dense Contracting and harvest, and the algae of harvest slurry is output to the solar energy hydrothermal pretreatment system 3；
The solar energy hydrothermal pretreatment system 3, which is used to starch algae using solar energy, carries out hydro-thermal hydrolysis；After the completion of hydrolysis Products therefrom is output to 4 in solid-liquid separator；Groove type solar thermal-arrest is provided in the solar energy hydrothermal pretreatment system 3 Device.
The solid-liquid separator 4 obtains hydro-thermal hydrolyzate and algae-residue for separating to products therefrom after the completion of hydrolysis； And hydro-thermal hydrolyzate and algae-residue are respectively outputted to the biomass ferment gas system 5 and oil extraction device 6；The solid-liquid Separator 4 is provided with inlet, solid-phase outlet and liquid-phase outlet.
The biomass ferment gas system 5 be used for hydro-thermal hydrolyzate and and degreasing after algae-residue carry out acidification, And anaerobic fermentation produces hydrogen and biogas；The biomass ferment gas system 5 is provided with novel evacuated solar energy heating formula family Outer upflow anaerobic sludge blanket reactor.
The oil extraction device 6 is used to carry out in solid-liquid separator 4 algae-residues isolated oil extraction, and by degreasing Algae-residue is output to the biomass ferment gas system 5, while resulting grease is output to biomass bio oil refining system 7。
The biomass bio oil refining system 7 is used to utilize grease production biodiesel.
The system for producing microalgae fuel further includes decarburization purification system 8, and the decarburization purification system 8 is used for biology The hydrogen and biogas that matter fermentation gas system 5 processed generates carry out decarburization purification；The decarburization purification system 8 utilizes microalgae High Density Cultivation And the carbon absorption liquid for absorbing great amount of carbon dioxide is output to microalgae as carbon absorption liquid, and again by the culture solution of recovery system 2 High Density Cultivation and recovery system 2 are used as culture solution.
When it is implemented, sodium carbonate liquor can be first passed through in the decarburization purification system 8 to biomass ferment gas system 5 The hydrogen and biogas of generation carry out decarburization purification, and absorbing the sodium carbonate liquor of great amount of carbon dioxide, to be converted into sodium bicarbonate molten Liquid, sodium bicarbonate solution enter back into the training for microdisk electrode in microalgae High Density Cultivation and recovery system 2, and after harvesting Nutrient solution is converted to sodium carbonate liquor again, then is back to the absorption that carbon dioxide is used in decarburization purification system 8 again.
Then culture solution is output to microalgae High Density Cultivation again and recovery system 2 utilizes microalgae High Density Cultivation and harvesting In the culture solution of system 2.
In a particular embodiment, be provided in the microalgae High Density Cultivation and recovery system 2 bioreactor and Efficient microalgae recovery device；A nanometer light guide plate, light pipe and self-adapting type ionic membrane are provided in bioreactor.It is described micro- Raceway pond, bioreactor or other effective microalgae culture systems can be used in algae High Density Cultivation and recovery system 2.Efficiently Microalgae recovery device can be replaced for sedimentation device, centrifugal device or using other effective recovery systems, but the harvesting fills Set the main physical and chemical of the liquid solution after cannot influencing harvesting.
The feed liquor of the algae of the microalgae High Density Cultivation and recovery system 2 slurry outlet and solar energy hydrothermal pretreatment system 3 Mouth connection, the liquid outlet of solar energy hydrothermal pretreatment system 3 are connect with 4 inlet of solid-liquid separator, and 4 liquid phase of solid-liquid separator goes out Mouthful connect with 5 inlet of biomass ferment gas system, 4 solid-phase outlet of solid-liquid separator and the oil extraction device 6 into The grease outlets of mouth connection, the oil extraction device 6 are connect with the entrance of biomass bio oil refining system 7, the grease The algae-residue outlet of extraction equipment 6 is connect with the solid phase entrance of biomass ferment gas system 5.Biomass ferment gas system 5 Gas outlet is connect with the air inlet of decarburization purification system 8, the inlet of decarburization purification system 8 and the microalgae High Density Cultivation and 2 culture solution of recovery system outlet connection, the liquid outlet and microalgae High Density Cultivation and recovery system 2 of decarburization purification system 8 are cultivated Liquid import connection.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this The range of invention is defined by the claims and their equivalents.

Claims (3)

1. a kind of method that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel, which is characterized in that according to the following steps It completes:
Step 1: fresh algae is seeded in microalgae High Density Cultivation and recovery system (2) and is cultivated, and periodically by algae solution It is concentrated and is harvested；
Step 2: the algae slurry of harvest being passed through in solar energy hydrothermal pretreatment system (3) and carries out hydro-thermal hydrolysis, institute after the completion of hydrolysis It obtains product (4) in solid-liquid separator to be separated, obtains hydro-thermal hydrolyzate and algae-residue；
Step 3: separating obtained hydro-thermal hydrolyzate is passed into biomass ferment gas system (5), and separating obtained algae-residue is first Oil extraction is first carried out, the resulting grease of oil extraction enters in biomass bio oil refining system (7) for producing biological bavin Oil, the algae-residue after degreasing are then passed into biomass ferment gas system (5)；Biomass ferment gas system (5) is to hydro-thermal water Algae-residue after solution liquid and degreasing first carries out acidification, then carries out two-step method anaerobic fermentation production hydrogen mixed gas and biogas；
Step 4: it is pure that hydrogen mixed gas and biogas that anaerobic fermentation generates are passed through progress decarburization purification acquisition in sodium carbonate liquor Net hydrogen and methane gas, the sodium carbonate liquor for absorbing great amount of carbon dioxide are converted into sodium bicarbonate solution, by sodium bicarbonate Solution is passed through in microalgae High Density Cultivation and recovery system (2) for microdisk electrode, and is passed through the resulting culture solution of harvesting and then weighed Newly it is back to the absorption that carbon dioxide is used in sodium carbonate liquor.
2. a kind of system that Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel, including photovoltaic and power storage system (1), microalgae High Density Cultivation and recovery system (2), solar energy hydrothermal pretreatment system (3), solid-liquid separator (4), biomass Gas system (5), oil extraction device (6) and the biomass bio oil processed of fermenting refine system (7)；It is characterized by:
The photovoltaic and power storage system (1) are powered system for being converted to electric energy using luminous energy；
The microalgae High Density Cultivation and recovery system (2) are used to cultivate algae using solar energy, be concentrated and be harvested, and The algae slurry of harvest is output to the solar energy hydrothermal pretreatment system (3)；
The solar energy hydrothermal pretreatment system (3), which is used to starch algae using solar energy, carries out hydro-thermal hydrolysis；Institute after the completion of hydrolysis It obtains product and is output in solid-liquid separator (4)；
The solid-liquid separator (4) obtains hydro-thermal hydrolyzate and algae-residue for separating to products therefrom after the completion of hydrolysis；And Hydro-thermal hydrolyzate and algae-residue are respectively outputted to the biomass ferment gas system (5) and oil extraction device (6)；
The biomass ferment gas system (5) be used for hydro-thermal hydrolyzate and and degreasing after algae-residue carry out acidification, and Anaerobic fermentation produces hydrogen and biogas；
The oil extraction device (6) is used to carry out (4) are isolated in solid-liquid separator algae-residue oil extraction, and by degreasing Algae-residue is output to the biomass ferment gas system (5), while resulting grease is output to biomass bio oil refining system It unites (7)；
Biomass bio oil refining system (7) is used to utilize grease production biodiesel.
3. the system that Driven by Solar Energy biochemistry thermochemical study according to claim 2 produces microalgae fuel, feature exist In: the system for producing microalgae fuel further includes decarburization purification system (8), and decarburization purification system (8) is used for biomass fermentation The hydrogen and biogas that ferment gas system (5) generates carry out decarburization purification；The decarburization purification system (8) utilizes microalgae High Density Cultivation And the culture solution of recovery system (2) is as carbon absorption liquid, and is again output to the carbon absorption liquid for absorbing great amount of carbon dioxide micro- Algae High Density Cultivation and recovery system (2) are used as culture solution.
CN201910827365.4A 2019-09-03 2019-09-03 Driven by Solar Energy biochemistry thermochemical study produces microalgae fuel process and system Pending CN110452932A (en)

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