CN104560409A - Method for direct preparation of biodiesel by utilizing microalgae ultrasonic-assisted ionic liquid composition - Google Patents
Method for direct preparation of biodiesel by utilizing microalgae ultrasonic-assisted ionic liquid composition Download PDFInfo
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- CN104560409A CN104560409A CN201410809197.3A CN201410809197A CN104560409A CN 104560409 A CN104560409 A CN 104560409A CN 201410809197 A CN201410809197 A CN 201410809197A CN 104560409 A CN104560409 A CN 104560409A
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- 239000002608 ionic liquid Substances 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003225 biodiesel Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000004519 grease Substances 0.000 claims abstract description 32
- 238000004821 distillation Methods 0.000 claims abstract description 17
- 239000000706 filtrate Substances 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000002551 biofuel Substances 0.000 claims description 22
- 241000195493 Cryptophyta Species 0.000 claims description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- KAIPKTYOBMEXRR-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole Chemical compound CCCCN1CN(C)C=C1 KAIPKTYOBMEXRR-UHFFFAOYSA-N 0.000 claims description 4
- FHDQNOXQSTVAIC-UHFFFAOYSA-M 1-butyl-3-methylimidazol-3-ium;chloride Chemical compound [Cl-].CCCCN1C=C[N+](C)=C1 FHDQNOXQSTVAIC-UHFFFAOYSA-M 0.000 claims description 4
- RVEJOWGVUQQIIZ-UHFFFAOYSA-N 1-hexyl-3-methylimidazolium Chemical compound CCCCCCN1C=C[N+](C)=C1 RVEJOWGVUQQIIZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 compound ion Chemical class 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000032050 esterification Effects 0.000 abstract description 4
- 238000005886 esterification reaction Methods 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 239000010414 supernatant solution Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 238000013517 stratification Methods 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000005809 transesterification reaction Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C11B1/106—Production of fats or fatty oils from raw materials by extracting using ultra-sounds
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/12—Refining fats or fatty oils by distillation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention discloses a method for direct preparation of biodiesel by utilizing a microalgae ultrasonic-assisted ionic liquid composition. The method comprises the following steps: step a, removing impurities from dry microalgae, crushing, grinding and sieving by a sieve of which the pore size is 200 to 300 meshes; adding the ionic liquid composition into screen underflow, uniformly mixing, subsequently adding methanol, reacting at the temperature of 60 to 110 DEG C for 1-5 hours under the assistance of ultrasonic waves; standing and cooling the materials which are reacted completely at room temperature for 1 to 1.5 hours; filtering to remove microalgae residues; standing and laying the filtrate; performing reduced-pressure distillation on the supernatant solution to obtain crude biodiesel. According to the method, the dissolution extraction property and catalytic performance of the ionic liquid and the cavitation effect of the ultrasonic wave are combined; grease extraction and grease esterification are integrated; therefore, the method is simple and convenient to operate, is greatly simplified in technological steps and can be used for rapidly preparing the biodiesel, so that the production efficiency is greatly improved, the production cost is lowered and a new method is provided for large-scale industrial production of the biodiesel.
Description
Technical field:
The present invention relates to biological chemical field, be specifically related to a kind of method that micro-algae ultrasonic assistant ionic liquid compositions directly prepares biofuel.
Background technology:
Day by day reducing of petroleum resources causes rising violently of energy shortage and oil price, people is more and more paid close attention to and finds its substitute.Biofuel not only combustionproperty is suitable with petroleum diesel, and has environmental friendliness, and the reproducible advantage of resource, is the ideal fuels of petroleum replacing diesel oil, receives much concern in recent years.
At present, abroad main with rapeseed oil, soybean oil for raw material, adopt strong acid or alkali catalyst catalysis for preparing biodiesel oil.But United Nations's official investigation declares that US and European adopts a large amount of food crop to be the major reason causing world food crisis to produce biofuel; therefore; the biomass material that positive searching is new, to alleviate current grain and energy dilemma has become the problem of showing great attention to countries in the world.In numerous biomass, algae has the advantages that photosynthetic efficiency is high, adaptive capacity to environment is strong, growth cycle is short, biological yield is high, and therefore algae is the good material of preparation biomass energy.
Tradition microalgae biodiesel production process is mainly divided into two steps: be first adopt organic solvent to extract grease from micro-algae raw material; Then, then grease is delivered in reaction vessel, carry out esterification by strong acid or highly basic.
Summary of the invention:
But traditional technology utilizes micro-algae to prepare biofuel also exists problem demanding prompt solution:
First, because most of oil-containing micro-algae cell walls is thicker, during conventional organic solvent extraction, intracellular grease is difficult to emigrated cell wall, solvent extraction rendering length consuming time, and needs to consume a large amount of organic extractant, increase the difficulty of separation, and extraction efficiency is low; In addition with the micro-algae after organic solvent extraction, organic solvent need be distilled out and just can obtain grease.
Secondly, traditional technology adopts strong acid or highly basic to prepare biofuel and there is alcohol consumption greatly, and product difficulty reclaims, the shortcomings such as environmental pollution is large.Utilize process for preparing biodiesel by enzyme, often will carry out in organic solvent reaction medium, the organic solvent of strong polarity can capture the necessary water in the microenvironment of enzyme surface, has a strong impact on activity of enzyme reaction, reduces the work-ing life of enzyme.
For above-mentioned technical problem to be solved, if microalgae grease extraction can be coupled into a unit with transesterification reaction two portions, shorten operational path, and find the reaction system that effectively can improve microalgae grease extraction yield and transformation efficiency, improve lactate synthesis amount, to microalgae biodiesel preparation of industrialization, there is definite meaning.
The object of this invention is to provide a kind of method that micro-algae ultrasonic assistant ionic liquid compositions directly prepares biofuel.
The present invention is achieved by the following technical programs:
Micro-algae ultrasonic assistant ionic liquid compositions directly prepares a method for biofuel, and the method comprises the following steps:
A, by after micro-algae removal of impurities of drying, pulverizing, grinding, cross 200 ~ 300 mesh sieves, extracting screen underflow, adds ionic liquid compositions, loads in extraction-reactor, and mixing, then adds methyl alcohol, under the condition of ultrasonic wave added, and 60 ~ 110 DEG C of reactions 1 ~ 5 hour; Described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 90% ~ 98%, component A is selected from 1-butyl-3-Methylimidazole villaumite ([BMIM] Cl) or 1-allyl group-3-Methylimidazole villaumite ([AMIM] Cl), and B component is selected from 1-butyl-3-methylmorpholine salt [Hnmm] Im or 1-base-3-methylimidazolium hydrogen sulphate salt ([HMIM] HSO
4); The mass ratio of described micro-algae screen underflow and compound ion liquid composition is 1:10 ~ 1:40; The mol ratio of described methyl alcohol and microalgae grease is 6:1;
B, react completely after material, left at room temperature cooling within 1-1.5 hour, remove micro-algae residue after filtration after, filtrate static layering; Upper solution is carried out underpressure distillation and is obtained coarse biodiesel.
Described micro-algae is selected from chlorella or grid algae.
Ultrasonic described in step a, ultrasonic power is 240W.
The lower floor's solution obtained after step b static layering is through distillation for removing methanol and glycerine, and reclaim ionic liquid, described ionic liquid can be recycled.
Beneficial effect of the present invention is as follows:
(1) feature that the application is maximum is whole reaction " step completes ", that is, the application's patent take microalgae powder as raw material, the extraction of microalgae grease and microalgae grease are converted into biofuel to carry out simultaneously, the extraction of grease and the esterification of grease or transesterification technique unite two into one by present method, avoid the extraction refining of grease, processing step simplifies greatly.
(2) ionic liquid compositions of the application is not only for catalysis microalgae grease production biofuel, it also has the effect of extraction " microalgae grease ", the ultrasonic wave of the application is not only for auxiliary catalysis microalgae grease production biofuel, it also has the effect of assisted extraction " microalgae grease ", so just achieve the extraction of microalgae grease, the microalgae grease simultaneously extracted is converted into biofuel.
In a word, the invention provides a kind of ultrasonic wave and extract microalgae grease and the novel method of catalysis for preparing biodiesel oil in conjunction with compound ion liquid composition.The method utilizes ionic liquid to the stronger solvability of microalgae cell wall and the catalytic activity higher to microalgae grease, in conjunction with ultrasonic wave to the anti-reflection crushing effect of microalgae cell film and ultrasonic vibration effect speeding-up ion liquid and the motion of algae powder, increase ionic liquid and the mutual making contact chance of algae powder, thus improve microalgae grease extraction yield and grease transformation efficiency.The method just advantageous feature such as ion liquid dissolving extraction ability, catalytic performance and hyperacoustic cavitation effect combines; The extraction of grease and the esterification of grease or transesterification technique are united two into one; design ingenious; simple to operation; avoid the extraction refining of grease; processing step simplifies greatly, can prepare biofuel fast, thus greatly enhance productivity; reduce production cost, for industrially scalable production biofuel provides a novel method.
Accompanying drawing illustrates:
Fig. 1 is present invention process schematic flow sheet.
Embodiment:
Below further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
By the removal of impurities of dry grid algae, after pulverizing, grinding, cross 200 mesh sieves, get 5 grams of screen underflows, add 50 gram of ionic liquid composition (described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 90%, component A is 1-butyl-3-Methylimidazole villaumite ([BMIM] Cl), B component is 1-butyl-3-methylmorpholine salt [Hnmm] Im) mix in extraction-reactor, then methyl alcohol (mol ratio of methyl alcohol and microalgae grease is 6:1) is added, on ultrasound synthesis abstraction instrument, setting temperature of reaction is 70 DEG C, ultrasonic power is 240W, start water-bath, react after 1 hour, 1 hour is cooled in left at room temperature, filter algae powder, filtrate is transferred in separating funnel, after stratification, get upper solution and carry out underpressure distillation, obtain biofuel crude product 0.129 gram, lower floor is through air distillation, underpressure distillation removing methyl alcohol and glycerine, and reclaim ionic liquid, described ionic liquid can be recycled.
Embodiment 2
By the removal of impurities of dry grid algae, after pulverizing, grinding, cross 300 mesh sieves; Get 5 grams of screen underflows, add 100 gram of ionic liquid composition (described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 95%, component A is 1-butyl-3-Methylimidazole villaumite ([BMIM] Cl), and B component is 1-base-3-methylimidazolium hydrogen sulphate salt ([HMIM] HSO
4)) mix in extraction-reactor, then add methyl alcohol (mol ratio of methyl alcohol and microalgae grease is 6:1), on ultrasound synthesis abstraction instrument, setting temperature of reaction is 80 DEG C, ultrasonic power is 240W, starts water-bath, reacts after 2 hours, 1 hour is cooled in left at room temperature, filter algae powder, filtrate is transferred in separating funnel, after stratification, get upper solution and carry out underpressure distillation, obtain biofuel crude product 0.158 gram; Lower floor is through air distillation, underpressure distillation removing methyl alcohol and glycerine, and reclaim ionic liquid, described ionic liquid can be recycled.
Embodiment 3
By the removal of impurities of dried pellet algae, after pulverizing, grinding, cross 200 mesh sieves, get 5 grams of screen underflows, add 150 gram of ionic liquid composition (described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 95%, component A is 1-allyl group-3-Methylimidazole villaumite ([AMIM] Cl), B component is 1-butyl-3-methylmorpholine salt [Hnmm] Im) mix in extraction-reactor, then methyl alcohol (mol ratio of methyl alcohol and microalgae grease is 6:1) is added, on ultrasound synthesis abstraction instrument, setting temperature of reaction is 90 DEG C, ultrasonic power is 240W, start water-bath, react after 3 hours, 1 hour is cooled in left at room temperature, filter algae powder, filtrate is transferred in separating funnel, after stratification, get upper solution and carry out underpressure distillation, obtain biofuel crude product 0.197 gram, lower floor is through air distillation, underpressure distillation removing methyl alcohol and glycerine, and reclaim ionic liquid, described ionic liquid can be recycled.
Embodiment 4
By the removal of impurities of dried pellet algae, after pulverizing, grinding, cross 300 mesh sieves; Get 5 grams and 200 grams of compound ion liquid composition (described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 98%, component A is 1-allyl group-3-Methylimidazole villaumite ([AMIM] Cl), and B component is 1-base-3-methylimidazolium hydrogen sulphate salt ([HMIM] HSO
4)) mix in extraction-reactor, then add methyl alcohol (mol ratio of methyl alcohol and microalgae grease is 6:1), on ultrasound synthesis abstraction instrument, setting temperature of reaction is 100 DEG C, ultrasonic power is 240W, starts water-bath, reacts after 4 hours, 1 hour is cooled in left at room temperature, filter algae powder, filtrate is transferred in separating funnel, after stratification, get upper solution and carry out underpressure distillation, obtain biofuel crude product 0.199 gram; Lower floor is through air distillation, underpressure distillation removing methyl alcohol and glycerine, and reclaim ionic liquid, described ionic liquid can be recycled.
Claims (4)
1. micro-algae ultrasonic assistant ionic liquid compositions directly prepares a method for biofuel, and it is characterized in that, the method comprises the following steps:
A, by after micro-algae removal of impurities of drying, pulverizing, grinding, cross 200 ~ 300 mesh sieves, extracting screen underflow, adds ionic liquid compositions, loads in extraction-reactor, and mixing, then adds methyl alcohol, under the condition of ultrasonic wave added, and 60 ~ 110 DEG C of reactions 1 ~ 5 hour; Described ionic liquid compositions, mixed by component A and B component and form, wherein component A massfraction is 90% ~ 98%, component A is selected from 1-butyl-3-Methylimidazole villaumite ([BMIM] Cl) or 1-allyl group-3-Methylimidazole villaumite ([AMIM] Cl), and B component is selected from 1-butyl-3-methylmorpholine salt [Hnmm] Im or 1-base-3-methylimidazolium hydrogen sulphate salt ([HMIM] HSO
4); The mass ratio of described micro-algae screen underflow and compound ion liquid composition is 1:10 ~ 1:40; The mol ratio of described methyl alcohol and microalgae grease is 6:1;
B, react completely after material, left at room temperature cooling within 1-1.5 hour, remove micro-algae residue after filtration after, filtrate static layering; Upper solution is carried out underpressure distillation and is obtained coarse biodiesel.
2. micro-algae ultrasonic assistant ionic liquid compositions according to claim 1 directly prepares the method for biofuel, and it is characterized in that, described micro-algae is selected from chlorella or grid algae.
3. micro-algae ultrasonic assistant ionic liquid compositions according to claim 1 directly prepares the method for biofuel, it is characterized in that, ultrasonic described in step a, ultrasonic power is 240W.
4. micro-algae ultrasonic assistant ionic liquid compositions according to claim 1 directly prepares the method for biofuel, it is characterized in that, the lower floor's solution obtained after step b static layering is through distillation for removing methanol and glycerine, and reclaim ionic liquid, described ionic liquid recycles.
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| CN201410809197.3A CN104560409B (en) | 2014-12-19 | 2014-12-19 | Method for direct preparation of biodiesel by utilizing microalgae ultrasonic-assisted ionic liquid composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695081A (en) * | 2016-03-31 | 2016-06-22 | 唐云龙 | Extraction method for microalgal oil |
| WO2018058865A1 (en) * | 2016-09-28 | 2018-04-05 | 东台市赐百年生物工程有限公司 | Dynamic fluid shear technology-based cell-wall breaking method for spirulina |
| CN110408466A (en) * | 2019-08-05 | 2019-11-05 | 福建福瑞康信息技术有限公司 | A kind of method of enzyme assisting ion liquid extraction microalgae grease |
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| CN1696248A (en) * | 2005-07-08 | 2005-11-16 | 中国科学院过程工程研究所 | Method for synthesizing biologic diesel oil based on ion liquid |
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