CN103773595A - Method for synthesizing biodiesel with marine microalgae - Google Patents
Method for synthesizing biodiesel with marine microalgae Download PDFInfo
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- CN103773595A CN103773595A CN201210416710.3A CN201210416710A CN103773595A CN 103773595 A CN103773595 A CN 103773595A CN 201210416710 A CN201210416710 A CN 201210416710A CN 103773595 A CN103773595 A CN 103773595A
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- algae
- methyl alcohol
- algae powder
- biodiesel
- petroleum ether
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention relates to a method for synthesizing biodiesel with marine microalgae. The method comprises the steps as follows: 1, pre-processing microalgae; 2, adding raw materials including methyl alcohol, algae powder and a catalyst into a three-neck flask, wherein the mass ratio of the methyl alcohol to the algae powder is (3:1)-(5:1), and using amount of the catalyst is 4-5% of mass of the algae powder; 3, placing the three-neck flask into an ultrasonic instrument, performing thermostatic water bath heating for 3-5 h at the temperature of 50-60 DEG C, stopping the reaction and standing; 4, filtering the algae powder, adding 15-20 mL petroleum ether in a clarified methyl alcohol solution for extraction, standing for layering, taking out the petroleum ether phase, repeatedly extracting for many times, combining organic phases, and evaporating the petroleum ether on a rotary evaporator cleanly, so as to obtain a clarified transparent product, namely the biodiesel. The method has the benefits that since the microalgae is directly crushed for synthesizing of the biodiesel, the step of extracting algae oil is omitted, so that a large amount of energy is saved, labor force, related equipment and reagent inputs are saved, and the production cost of the biodiesel is reduced.
Description
Technical field
The present invention relates to derived energy chemical field, specifically a kind of method of marine microalgae biodiesel synthesis.
Background technology
Along with the exhaustion day by day of petroleum resources and the raising of people's environmental consciousness, the exploitation paces of Alternative Diesel Fuel have all been accelerated in countries in the world, biofuel, because of features such as its environmental pollutants burst size are few, environmental pollution is little, use safety, use range is wide, renewable and biodegradable, becomes the focus of current international new energy development.
Marine microalgae is the main provider of organism and energy in marine ecology system, compared with other raw materials, have the advantages that photosynthetic efficiency is high, adaptive capacity to environment is strong, growth cycle is short, biological yield is high, itself can biochemical Synthetic Oil, and fat content is high, so marine microalgae shows wide application prospect as the new source of preparing biodiesel fuel, be subject to the extensive attention of countries in the world.
Also need a large amount of power consumptions because algae oil extracts, not only consume a large amount of energy, and need to expend certain labor force, need to drop into certain equipment, and then improve the production cost of biofuel.
Summary of the invention
According to above-mentioned weak point, the object of this invention is to provide a kind of method of marine microalgae biodiesel synthesis.
For achieving the above object, technical scheme of the present invention is: a kind of method of marine microalgae biodiesel synthesis, it comprises the following steps
1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use;
2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 3:1-5:1, and catalyst levels is the 4-5% of algae opaque amount;
3, there-necked flask is placed in to ultrasonic instrument, in 50-60 ℃ of water bath with thermostatic control 3-5h, finishes reaction, leave standstill;
4, filter algae powder, in the methanol solution of clarification, add 15-20mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Preferably: described catalyzer is potassium hydroxide or sodium hydroxide.
Beneficial effect of the present invention is: by directly by the broken microalgae powder biodiesel synthesis that carries out, save the step of extracting algae oil, not only save mass energy, labor force and relevant equipment and the input of reagent are saved, reduce the production cost of biofuel, the present invention is simple to operate, not high to experimental installation and requirement for experiment condition, has certain operability.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 3:1, and potassium hydroxide consumption is 4% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 50 ℃ of water bath with thermostatic control 3h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 15mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Embodiment 2
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 3:1, and sodium hydroxide concentration is 4% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 50 ℃ of water bath with thermostatic control 3h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 15mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Embodiment 3
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 5:1, and potassium hydroxide consumption is 5% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 60 ℃ of water bath with thermostatic control 5h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 20mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Embodiment 4
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 5:1, and sodium hydroxide concentration is 5% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 60 ℃ of water bath with thermostatic control 5h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 20mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Embodiment 5
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 4:1, and potassium hydroxide consumption is 4.5% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 55 ℃ of water bath with thermostatic control 4h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 17mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Embodiment 6
A method for marine microalgae biodiesel synthesis, it comprises the following steps: 1, the pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use; 2, algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 4:1, and sodium hydroxide concentration is 4.5% of algae opaque amount; 3, there-necked flask is placed in to ultrasonic instrument, in 55 ℃ of water bath with thermostatic control 4h, finishes reaction, leave standstill; 4, filter algae powder, in the methanol solution of clarification, add 17mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtains the product biofuel of clear.
Claims (2)
1. a method for marine microalgae biodiesel synthesis, is characterized in that: it comprises the following steps
(1) pre-treatment of micro-algae: micro-algae is cleaned, removed impurity, dry, pulverize, for subsequent use;
(2) algae powder and methyl alcohol and catalyzer are put into there-necked flask, the mass ratio of methyl alcohol and algae powder is 3:1-5:1, and catalyst levels is the 4-5% of algae opaque amount;
(3) there-necked flask is placed in to ultrasonic instrument, in 50-60 ℃ of water bath with thermostatic control 3-5h, finishes reaction, leave standstill;
(4) filter algae powder, in the methanol solution of clarification, add 15-20mL petroleum ether extraction, after stratification, take out sherwood oil phase, extraction repeatedly, merges organic phase repeatedly, on Rotary Evaporators, by clean sherwood oil evaporation, obtain the product biofuel of clear.
2. according to the method for a kind of marine microalgae biodiesel synthesis claimed in claim 1, it is characterized in that: described catalyzer is potassium hydroxide or sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416710.3A CN103773595A (en) | 2012-10-28 | 2012-10-28 | Method for synthesizing biodiesel with marine microalgae |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210416710.3A CN103773595A (en) | 2012-10-28 | 2012-10-28 | Method for synthesizing biodiesel with marine microalgae |
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| CN103773595A true CN103773595A (en) | 2014-05-07 |
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| CN201210416710.3A Pending CN103773595A (en) | 2012-10-28 | 2012-10-28 | Method for synthesizing biodiesel with marine microalgae |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713736A (en) * | 2016-04-23 | 2016-06-29 | 连云港恒图农牧开发有限公司 | Method for preparing biodiesel from animal wastes and seaweed |
| CN105925367A (en) * | 2016-06-12 | 2016-09-07 | 昆山清旭环境科技有限公司 | Refining equipment for microalgae biodiesel |
| CN109652110A (en) * | 2018-11-22 | 2019-04-19 | 天津大学 | The method for directly preparing biodiesel using wet microalgae is reacted based on hydrochloric acid catalysis hydrolysis -esterization |
-
2012
- 2012-10-28 CN CN201210416710.3A patent/CN103773595A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713736A (en) * | 2016-04-23 | 2016-06-29 | 连云港恒图农牧开发有限公司 | Method for preparing biodiesel from animal wastes and seaweed |
| CN105925367A (en) * | 2016-06-12 | 2016-09-07 | 昆山清旭环境科技有限公司 | Refining equipment for microalgae biodiesel |
| CN109652110A (en) * | 2018-11-22 | 2019-04-19 | 天津大学 | The method for directly preparing biodiesel using wet microalgae is reacted based on hydrochloric acid catalysis hydrolysis -esterization |
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Application publication date: 20140507 |