CN106467854A - A kind of method that employing microalgae prepares biodiesel - Google Patents
A kind of method that employing microalgae prepares biodiesel Download PDFInfo
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- CN106467854A CN106467854A CN201610772967.0A CN201610772967A CN106467854A CN 106467854 A CN106467854 A CN 106467854A CN 201610772967 A CN201610772967 A CN 201610772967A CN 106467854 A CN106467854 A CN 106467854A
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- biodiesel
- scenedesmus obliquus
- microalgae
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- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
-
- 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
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
- C11C3/10—Ester interchange
-
- 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a kind of method that employing microalgae prepares biodiesel, comprise the following steps：Scenedesmus obliquus is seeded to culture medium, with red indigo plant dual-colored LED light filling light irradiation 8 14h/ days, cultivates 57 days at 23 26 DEG C, you can collect scenedesmus obliquus cell；The scenedesmus obliquus cell collected carries out broken wall treatment with ultrasound wave, then with organic solvent extraction, obtains microalgae grease, then by microalgae grease, methanol and zeolite molecular sieve catalyst according to weight ratio for 1:4‑6:Carry out esterification in 0.01 0.04 ratio addition reactor, obtain esterification products, esterification products are again through separating, purifying, you can obtain biodiesel.The inventive method, with scenedesmus obliquus with short production cycle, widely distributed, that photosynthesis are strong, fat content is high as raw material, solves the problems, such as the Vegetable oil lipoprotein raw material in biodiesel exploitation.Also have the advantages that preparation process is simple, high catalytic efficiency, grease extraction efficiency be high, product yield is high simultaneously, be that biodiesel industrialization, scale are laid a good foundation.
Description
Technical field
The invention belongs to biomass energy technology field, a kind of specifically side of employing microalgae preparation biodiesel
Method.
Background technology
With the increasingly depleted of fossil fuel, oil price persistently sharp rises, and seeking regenerative resource has become solution
Human survival and the needs keeping World Economics sustainable development, the biodiesel as new alternative energy source is sent out in countries in the world
Exhibition is rapid.Biodiesel refers to oil crop such as Semen sojae atricolor, Brassica campestris L, cotton, Petiolus Trachycarpi etc., the water such as Wild oil plant and engineering microalgae
Plant oils and fatss and animal oil, food garbage oil etc. are for raw oil by replacing that ester exchange or thermochemical processes are made
The reproducibility diesel fuel of petrifaction diesel.The advantage of biodiesel is not limited only to recyclability, compared with existing diesel oil, also has
Following advantage：Cetane number height is so that combustibility is more preferable；Preferably wettability, makes injection pump, engine cylinder-body and connecting rod
Abrasion reduce, increase the service life；In biodiesel, sulfur content is low, and the discharge of sulfur dioxide and sulfide is low, reduces environment
Pollution；Biodiesel flash-point is high, is not belonging to dangerous materials, all advantageous in transport, storage, use etc..
At present, China's industrialized production biodiesel is mainly with Oleum Brassicae campestriss, Oleum Gossypii semen, Chinese tallow, shinyleaf yellowhorn oil, Oleum Camelliae
It is raw material with waste oil etc..But the limits throughput of these raw materials, the biodiesel of production can only meet current vehicle demand for fuel
The 0.3% of amount.And produce biodiesel with Vegetable oil lipoprotein in a large number, anxiety and the crops price of land resource will certainly be caused
Rise, especially in the case that China has a large population and a few land, these are particularly problematic.In this case, microalgae biodiesel
Attract the concern of more and more people with its unique advantage.Microalgae, as a kind of important biodiesel raw material, is planted with oil plant
Thing is compared, and has that distribution is wide, Biomass height, photosynthetic efficiency height, strong environmental adaptability, growth cycle is short, fat content is high, one-tenth
The significant advantages such as this low and environmental friendliness.
In recent years, the research of relevant biodiesel preparation is concentrated mainly on the aspect such as woody oleiferous plants and disposed waste oil, from
Extract oils and fatss in microalgae to report seldom for the research preparing biodiesel.Wherein, biodiesel one is prepared for raw material with microalgae
As comprise the following steps that：Strain selection, pilot scale culture, extraction oils and fatss, esterification prepare biodiesel coarse product, warp
Cross refine and can get biodiesel.The microalgae species selecting fat content high is to prepare the key of biodiesel, cultivates simultaneously
Base and envirment factor also have important impact to the fat content of microalgae.Therefore, how to improve the nutritional labeling of culture medium and change
The changing environment factor is to improve one of approach of algae lipid-producing.Although improving microalgae fat content to lay well for biodiesel
Basis, but the production technology of biodiesel is most important to its yield effect.The production technology of existing biodiesel is general
There is problems with：Catalytic efficiency is low, yield of biodiesel is low, response time length, etching apparatus, complex process, energy consumption are larger,
Relatively costly etc. not enough.
Scenedesmus obliquus (Scenedesmus obliquus), scenedesmus section, Scenedesmus, in various hydrostatic small size pond, both at home and abroad
Widely distributed.Scenedesmus obliquus is wide due to distribution, and fat content reaches 10% about, mainly contains C in lubricant component18、C16Carbochain
Fatty glyceride, close with the biodiesel fuel component extracted from vegetable oil, it is the bioenergy that a class has potentiality to be exploited
Material.
Content of the invention
The present invention is directed to the problem that Vegetable oil lipoprotein limits throughput and existing biodiesel oil preparing process exist, and provides one kind to adopt
The method preparing biodiesel with microalgae.The inventive method have raw material sources extensively, high catalytic efficiency, consume energy low, biological bavin
Oily yield is high, preparation process is simple the advantages of, be that biodiesel industrialization, scale are laid a good foundation, can be effectively slow
Solution problem of energy crisis.
In order to realize object above, the present invention is to be achieved through the following technical solutions：
A kind of method that employing microalgae prepares biodiesel, comprises the following steps:
S1. scenedesmus obliquus culture：With scenedesmus obliquus as raw material, then the inoculum density inoculation with ten thousand cell/mL of 400-500
To culture medium, with red indigo plant dual-colored LED light filling light irradiation 8-14h/ days, control intensity of illumination in 3500-4500LX, cultivation temperature control
System, at 23-26 DEG C, is cultivated 5-7 days, and the density of scenedesmus obliquus reaches concentration and reaches 80,000,000 cell/mL, collects scenedesmus obliquus
Cell；Described culture medium is composed of the following components：Glucose 20-25mg/L, NaNO31.8-2.6mg/L、KH2PO41.0-
1.2mg/L, shitosan 0.8-1.0mg/L, biogas slurry 6-8mg/L, f2 vitamin 2-3mL and sea water 1L；
S2. oils and fatss extract：After step S1 collection scenedesmus obliquus cell concentration is dried, using ultrasound wave, scenedesmus obliquus is entered
Row broken wall treatment, obtains scenedesmus obliquus powder, adds with its weight than for 1 in scenedesmus obliquus powder:The petroleum ether of 6-9, mixes standing
4-6h, upper liquid is oils and fatss extracting solution, then extracting solution is distilled at 75-80 DEG C, you can obtain microalgae grease；
S3. ester exchange reaction：By microalgae grease, methanol and zeolite molecular sieve catalyst according to weight than for 1:4-6:
The ratio of 0.01-0.04 adds in reactor, at temperature is for 45-55 DEG C, carries out esterification 90-100min, is esterified
Product；
S4. standing separation；Esterification products are centrifuged under rotating speed is for 150-250r/min 15-20min, stratification, divide
Separate out upper strata glycerol, lower floor is biodiesel crude product；
S5. distilation：Biodiesel crude product is added to distillation column, unnecessary methanol is distilled off at 80-85 DEG C, you can
Obtain biodiesel.
Further, the compound method of the f2 vitamin described in above step S1 is as follows：0.5mg vitamin B12、0.5mg
Biotin, 100mL vitamin B1 and pure water 1000mL.
Further, the HONGGUANG in above-described red indigo plant dual-colored LED light compensating lamp is 1 with blue light proportioning:1-4, preferably joins
Than for 1：2.
Further, described in above step S2, broken wall treatment is carried out to scenedesmus obliquus using ultrasound wave, ultrasonic power is
200-250W, ultrasonic time are 18-25min.
Compared with prior art, the beneficial effect that the present invention obtains：
1st, the present invention prepares biodiesel with scenedesmus obliquus for raw material, can effectively alleviate current energy crisis and environment is dirty
Dye problem, scenedesmus obliquus has that distribution is wide, Biomass height, photosynthetic efficiency height, strong environmental adaptability, growth cycle are short, oils and fatss
The significant advantages such as content is high, low cost and environmental friendliness, can solve the problem that Vegetable oil lipoprotein insufficient raw material in biodiesel exploitation, one-tenth
The problems such as this is too high.
2nd, the present invention adds in the medium shitosan and biogas slurry, containing nutrition such as substantial amounts of trace element, Organic substances
Composition, the lipid-producing that microalgae speed of production can be accelerated and improve microalgae.
3rd, the inventive method is passed through to change illumination condition using red indigo plant dual-colored LED light compensating lamp, not only can improve and tiltedly give birth to grid
The photosynthesis of algae, accelerate scenedesmus obliquus and produce and improve yield, can also improve the lipid-producing of scenedesmus obliquus simultaneously, and normal
Electric filament lamp, fluorescent lamp or monochromatic LED lamp are compared, and the lipid-producing of scenedesmus obliquus improves 5% about.
4th, the inventive method adopts supersonic wave wall breaking method, and ultrasound wave can produce unique mechanical vibration to microalgae cell
Effect and cavitation, have sporoderm-broken rate height, process time section, environmentally safe, consume energy low advantage, improves oils and fatss
Extraction ratio.
5th, the inventive method adopts zeolite molecular sieve as catalyst, possesses that reaction interface is big, surface area big, resistance to mass tranfer
Little, reaction condition is gentle, activity is high, pollution-free, not etching apparatus the features such as, improve catalytic efficiency, shorten esterification
Time, catalytic effect is notable, improves the yield of biodiesel.
6th, the inventive method have preparation process is simple, high catalytic efficiency, grease extraction efficiency is high, biodiesel production rate is high,
Product purity is high, raw material sources are extensive, low cost, the low advantage of power consumption, has good society, ecological and economic benefit, is
Microalgae biodiesel industrialization, scale are laid a good foundation.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further described, but is not limited to protection scope of the present invention.
Embodiment 1
The preparation of scenedesmus obliquus culture medium：Glucose 20mg/L, NaNO31.8mg/L、KH2PO41.0mg/L, shitosan
1.0mg/L, biogas slurry 8mg/L, f2 vitamin 2mL and sea water 1L；
A kind of method that employing microalgae prepares biodiesel, comprises the following steps：
S1. scenedesmus obliquus culture：With scenedesmus obliquus as raw material, then training is seeded to the inoculum density of 4,500,000 cell/mL
Foster base, with red indigo plant dual-colored LED light filling light irradiation 14h/ days, in LED light supplement lamp, HONGGUANG and blue light proportioning are 1:2, control illumination strong
In 3500LX, cultivation temperature controls at 23 DEG C degree, cultivates 5 days, the density of scenedesmus obliquus reach concentration reach 80,000,000 cells/
ML, collects scenedesmus obliquus cell；
S2. oils and fatss extract：After step S1 collection scenedesmus obliquus cell concentration is dried, using ultrasound wave, scenedesmus obliquus is entered
Row broken wall treatment, control ultrasonic power be 200W, ultrasonic reaction 25min, obtain scenedesmus obliquus powder, in scenedesmus obliquus powder add with
Its weight is than for 1:6 petroleum ether, mixes standing 6h, and upper liquid is oils and fatss extracting solution, then extracting solution is distilled at 75 DEG C, that is,
Can get microalgae grease；
S3. ester exchange reaction：By microalgae grease, methanol and zeolite molecular sieve catalyst according to weight than for 1:4:0.03
Ratio adds in reactor, at temperature is 45 DEG C, carries out esterification 100min, obtains esterification products；
S4. standing separation；Esterification products are centrifuged 20min, stratification under rotating speed is for 150r/min, isolate upper strata
Glycerol, lower floor is biodiesel crude product；
S5. distilation：Biodiesel crude product is added to distillation column, unnecessary methanol is distilled off at 80 DEG C, you can
To biodiesel.
Embodiment 2
The preparation of scenedesmus obliquus culture medium：Glucose 22mg/L, NaNO32.6mg/L、KH2PO41.1mg/L, shitosan
0.8mg/L, biogas slurry 6mg/L, f2 vitamin 3mL and sea water 1L；
A kind of method that employing microalgae prepares biodiesel, comprises the following steps：
S1. scenedesmus obliquus culture：With scenedesmus obliquus as raw material, then training is seeded to the inoculum density of 4,000,000 cell/mL
Foster base, with red indigo plant dual-colored LED light filling light irradiation 8h/ days, in LED light supplement lamp, HONGGUANG and blue light proportioning are 1:4, control intensity of illumination
In 4500LX, cultivation temperature controls at 26 DEG C, cultivates 7 days, the density of scenedesmus obliquus reach concentration reach 80,000,000 cells/
ML, collects scenedesmus obliquus cell；
S2. oils and fatss extract：After step S1 collection scenedesmus obliquus cell concentration is dried, using ultrasound wave, scenedesmus obliquus is entered
Row broken wall treatment, control ultrasonic power be 220W, ultrasonic reaction 20min, obtain scenedesmus obliquus powder, in scenedesmus obliquus powder add with
Its weight is than for 1:7 petroleum ether, mixes standing 4h, and upper liquid is oils and fatss extracting solution, then extracting solution is distilled at 78 DEG C, that is,
Can get microalgae grease；
S3. ester exchange reaction：By microalgae grease, methanol and zeolite molecular sieve catalyst according to weight than for 1:6:0.01
Ratio adds in reactor, at temperature is 50 DEG C, carries out esterification 95min, obtains esterification products；
S4. standing separation；Esterification products are centrifuged 17min, stratification under rotating speed is for 200r/min, isolate upper strata
Glycerol, lower floor is biodiesel crude product；
S5. distilation：Biodiesel crude product is added to distillation column, unnecessary methanol is distilled off at 85 DEG C, you can
To biodiesel.
Embodiment 3
The preparation of scenedesmus obliquus culture medium：Glucose 25mg/L, NaNO32.2mg/L、KH2PO41.2mg/L, shitosan
0.9mg/L, biogas slurry 7mg/L, f2 vitamin 2mL and sea water 1L；
A kind of method that employing microalgae prepares biodiesel, comprises the following steps：
S1. scenedesmus obliquus culture：With scenedesmus obliquus as raw material, then training is seeded to the inoculum density of 4,000,000 cell/mL
Foster base, with red indigo plant dual-colored LED light filling light irradiation 10h/ days, in LED light supplement lamp, HONGGUANG and blue light proportioning are 1:1, control illumination strong
In 4000LX, cultivation temperature controls at 24 DEG C degree, cultivates 6 days, the density of scenedesmus obliquus reach concentration reach 80,000,000 cells/
ML, collects scenedesmus obliquus cell；
S2. oils and fatss extract：After step S1 collection scenedesmus obliquus cell concentration is dried, using ultrasound wave, scenedesmus obliquus is entered
Row broken wall treatment, control ultrasonic power be 250W, ultrasonic reaction 18min, obtain scenedesmus obliquus powder, in scenedesmus obliquus powder add with
Its weight is than for 1:9 petroleum ether, mixes standing 5h, and upper liquid is oils and fatss extracting solution, then extracting solution is distilled at 80 DEG C, that is,
Can get microalgae grease；
S3. ester exchange reaction：By microalgae grease, methanol and zeolite molecular sieve catalyst according to weight than for 1:5:0.04
Ratio adds in reactor, at temperature is 55 DEG C, carries out esterification 90min, obtains esterification products；
S4. standing separation；Esterification products are centrifuged 18min, stratification under rotating speed is for 250r/min, isolate upper strata
Glycerol, lower floor is biodiesel crude product；
S5. distilation：Biodiesel crude product is added to distillation column, unnecessary methanol is distilled off at 82 DEG C, you can
To biodiesel.
Carry out fat content mensure using the scenedesmus obliquus that oils and fatss extraction weight method collects to above example, result is such as
Shown in table 1.Wherein oils and fatss total content=(microalgae grease/scenedesmus obliquus powder) × 100%.
Table 1. scenedesmus obliquus carries out fat content
| Oils and fatss total content (%) | |
| Embodiment 1 | 13 |
| Embodiment 2 | 15 |
| Embodiment 3 | 16 |
The biodiesel of above example preparation is according to GB/T20828-2007 (diesel fuel blending biodiesel)
The performance of standard detection product, it is as shown in the table for testing result.
The properties of product of the biodiesel of table 2. the present embodiment
| Density (g/cm3) | Viscosity (40 DEG C of mm2/s) | Acid number (mgKOH/g) | Flash-point (DEG C) | Cetane number | |
| Embodiment 1 | 0.82 | 4.23 | 0.54 | 151 | 63 |
| Embodiment 2 | 0.84 | 3.96 | 0.51 | 158 | 66 |
| Embodiment 3 | 0.83 | 4.12 | 0.49 | 160 | 67 |
| Standard value | 0.82-0.9 | 1.9-6.0 | ≤0.8 | ≥130℃ | ＞ 49 |
As can be seen from the above table, the indices of the biodiesel of present invention preparation are above diesel fuel blending life
The standard of thing diesel oil, good market prospects.
Above content be further describe with reference to specific/preferred embodiment made for the present invention it is impossible to
Assert the present invention be embodied as be confined to these explanations.General technical staff of the technical field of the invention is come
Say, without departing from the inventive concept of the premise, it can also make some replacements or modification to the embodiment that these have described that,
And these substitute or variant all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. a kind of method using microalgae preparation biodiesel is it is characterised in that comprise the following steps：
S1. scenedesmus obliquus culture：With scenedesmus obliquus as raw material, then training is seeded to the inoculum density of ten thousand cell/mL of 400-500
Foster base, with red indigo plant dual-colored LED light filling light irradiation 8-14h/ days, controls intensity of illumination in 3500-4500LX, cultivation temperature controls
23-26 DEG C, cultivate 5-7 days, the density of scenedesmus obliquus reaches concentration and reaches 80,000,000 cell/mL, collects scenedesmus obliquus thin
Born of the same parents；Described culture medium is composed of the following components：Glucose 20-25mg/L, NaNO31.8-2.6mg/L、KH2PO41.0-
1.2mg/L, shitosan 0.8-1.0mg/L, biogas slurry 6-8mg/L, f2 vitamin 2-3mL and sea water 1L；
S2. oils and fatss extract：After step S1 collection scenedesmus obliquus cell concentration is dried, using ultrasound wave, scenedesmus obliquus is broken
Wall is processed, and obtains scenedesmus obliquus powder, adds with its weight ratio for 1 in scenedesmus obliquus powder:The petroleum ether of 6-9, mixes standing 4-6h,
Upper liquid is oils and fatss extracting solution, then extracting solution is distilled at 75-80 DEG C, you can obtain microalgae grease；
S3. ester exchange reaction：By microalgae grease, methanol and zeolite molecular sieve catalyst according to weight than for 1:4-6:0.01-
0.04 ratio adds in reactor, at temperature is for 45-55 DEG C, carries out esterification 90-100min, obtains esterification products；
S4. standing separation；Esterification products are centrifuged 15-20min, stratification under rotating speed is for 150-250r/min, isolate
Upper strata glycerol, lower floor is biodiesel crude product；
S5. distilation：Biodiesel crude product is added to distillation column, unnecessary methanol is distilled off at 80-85 DEG C, you can obtain
Biodiesel.
2. a kind of employing microalgae according to claim 1 prepare biodiesel method it is characterised in that：Described red indigo plant
HONGGUANG in dual-colored LED light compensating lamp and blue light proportioning are 1:1-4.
3. a kind of employing microalgae according to claim 1 and 2 prepare biodiesel method it is characterised in that：Step S2
Described broken wall treatment is carried out to scenedesmus obliquus using ultrasound wave, ultrasonic power be 200-250W, ultrasonic time be 18-25min.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649332A (en) * | 2008-08-15 | 2010-02-17 | 上海高技企业发展公司 | Production method of biodiesel |
| CN101767893A (en) * | 2010-02-11 | 2010-07-07 | 清华大学 | Device and method for coupling producing biological oil by utilizing microalgae to deeply treating wastewater |
| CN103045352A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Extraction method of microalga grease |
| CN105713934A (en) * | 2014-12-05 | 2016-06-29 | 中国石油化工股份有限公司 | Method for producing microalgae oil |
-
2016
- 2016-08-30 CN CN201610772967.0A patent/CN106467854A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649332A (en) * | 2008-08-15 | 2010-02-17 | 上海高技企业发展公司 | Production method of biodiesel |
| CN101767893A (en) * | 2010-02-11 | 2010-07-07 | 清华大学 | Device and method for coupling producing biological oil by utilizing microalgae to deeply treating wastewater |
| CN103045352A (en) * | 2011-10-17 | 2013-04-17 | 中国石油化工股份有限公司 | Extraction method of microalga grease |
| CN105713934A (en) * | 2014-12-05 | 2016-06-29 | 中国石油化工股份有限公司 | Method for producing microalgae oil |
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