CN104178360A - Method for preparing biodiesel from sarson seed oil - Google Patents
Method for preparing biodiesel from sarson seed oil Download PDFInfo
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- CN104178360A CN104178360A CN201410450453.4A CN201410450453A CN104178360A CN 104178360 A CN104178360 A CN 104178360A CN 201410450453 A CN201410450453 A CN 201410450453A CN 104178360 A CN104178360 A CN 104178360A
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- seed oil
- rape seed
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- bird rape
- biodiesel
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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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Abstract
The invention belongs to the technical field of biological energy sources, and relates to a method for synthesizing biodiesel from sarson seed oil. The method comprises the following steps: mixing wild biodiesel and methanol in a certain mass ratio, adding a certain amount of sodium bisulfate as a catalyst, and stirring under the condition of a proper-temperature oil bath to react for some time, thereby obtaining the biodiesel. The method is simple in technique, the biodiesel yield is up to 98.06%, and the byproduct glycerol can be obtained by skimming and pressure distillation. The method has the advantages of low price of the sarson seed oil, abundant sources, recyclable catalyst and no environmental pollution; and the obtained biodiesel satisfies the national standard BD100 for blending biodiesel for diesel fuels.
Description
Technical field
The invention belongs to bioenergy technical field, relate to a kind of method of utilizing bird rape seed oil biodiesel synthesis.
Background technology
Nowadays, environmental pollution is day by day serious, and Nonrenewable energy resources are as day by day exhausted in oil, coal, Sweet natural gas, and the whole society is faced with huge Pressure on Energy.Renewable Energy Development substitutes traditional fossil energy becomes the Main Means of alleviating energy environment issues gradually.Wherein, synthetic one of study hotspot of current association area that become of biofuel.
Biofuel is compared with common biofuel, and its advantage is: raw material sources are extensive and renewable; Flash-point is higher, stores, transports safer; Element sulphur equal size is lower, is conducive to environmental protection.
Existing method for synthesizing biologic diesel oil mainly contains: direct pyrolysis method, ester-interchange method (comprising acid catalysis and base catalysis method), enzyme process, microbial method etc.Wherein, direct pyrolysis method power consumption is large, and by product is many, does not meet energy-conserving and environment-protective, the requirement of Green Chemistry.Enzyme process cost costliness, catalytic activity is easily influenced and be difficult to realize industrialization.Ester-interchange method is because technique is simple, and expense is low and become the focus of research.Ester-interchange method is mainly divided into acid catalysis and two kinds of methods of base catalysis: the base-catalyzed transesterification method reaction times is short, but shortcoming is high especially to the purity requirement of raw material.In acid-catalyzed transesterification method, acid mainly contains Lewis acid and bronsted acid.Wherein Lewis acid as zirconium sulfate principal feature be easy recovery, but the reaction times is slightly long, and price is higher.And bronsted acid as the principal feature of sulfuric acid be homogeneous reaction, the reaction times is shorter, but sulfuric acid be difficult to reclaim, acid waste water process cost high.
More than the stock oil Kind and source that relates to of research is numerous, but the research of aboundresources, cheap bird rape seed oil biodiesel synthesis be there is not yet to report.
Summary of the invention
The object of the invention is to wild renewable plant resources blank for existing research and that be not yet developed, a kind of new method for synthesizing biologic diesel oil is provided, make full use of bird rape seed oil to reach, alleviate the object of Pressure on Energy.
The method of utilizing bird rape seed oil biodiesel synthesis under the catalysis of solid sulphuric acid hydrogen sodium provided by the invention.
Concrete operations are:
(1). by bird rape seed oil and methanol mixed, under the catalysis of solid sulphuric acid hydrogen sodium, by transesterification reaction biodiesel synthesis;
(2). by (1) gained mixture centrifugal 5min under 4000 ~ 6000r/min speed conditions;
(3). (2) gained liquid phase is poured in separating funnel, and stratification, takes off clear liquid and is biofuel crude product, and after washing, decompression dewaters and can obtain biofuel;
(4). will after dry (2) gained precipitation, soak with the vitriol oil, then it is reusable to be dried to powder;
(5). by reclaim under reduced pressure methyl alcohol under 40 ~ 50 DEG C of conditions of (3) gained supernatant liquor, obtain residuum and be by-product glycerin.
(1) described bird rape seed oil and the mass ratio of methyl alcohol are 1:0.436 ~ 0.546;
(1) described catalyst levels is 7 ~ 9% of bird rape seed weight of oil;
(1) described temperature of reaction is 110 ~ 130 DEG C;
(1) the described reaction times is 12 ~ 15 hours.
Compared with prior art, the present invention has following advantage:
The present invention adopts abundant, cheap bird rape seed oil as biofuel synthesis material, cost is low, the solid sulphuric acid hydrogen sodium that use can be recycled is as catalyzer, and synthesis technique is simple, energy consumption is less, bio-diesel yield is high, major product and byproduct get both, pollution-free, gained biofuel is processed and can be met diesel-fuel with being in harmonious proportion by biofuel (BD100) national standard through washing.
concrete implementing method
Provide embodiment below so that the present invention will be described in more detail; it is important to point out that following examples can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field must belong to protection scope of the present invention according to the nonessential improvement more made for the present invention of the invention described above content and adjustment.
Embodiment mono-
Get bird rape seed oil and mix with mass ratio 1:0.437 with methyl alcohol, add the solid sulphuric acid hydrogen sodium of bird rape seed weight of oil 7% to make catalyzer, 90 DEG C of oil bath heating, react under induction stirring condition 9 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three-phase, be respectively from top to bottom methyl alcohol and glycerol mixture layer, bio-diesel layer, sodium pyrosulfate.After liquid decompression in upper strata being removed to methyl alcohol after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel to collection of biological diesel oil drying under reduced pressure after water layer water white transparency; After bottom sodium pyrosulfate is dry, in the vitriol oil, soak to reuse.Bio-diesel yield is 59.34%.
Embodiment bis-
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.546, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 9% as catalyzer, 110 DEG C of oil bath heating, react under induction stirring condition 9 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 91.85%.
Embodiment tri-
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.655, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 11% as catalyzer, 130 DEG C of oil bath heating, react under induction stirring condition 9 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 86.09%.
Embodiment tetra-
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.546, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 7% as catalyzer, 130 DEG C of oil bath heating, react under induction stirring condition 12 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 70.72%.
Embodiment five
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.655, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 9% as catalyzer, 110 DEG C of oil bath heating, react under induction stirring condition 12 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 72.71%.
Embodiment six
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.437, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 11% as catalyzer, 90 DEG C of oil bath heating, react under induction stirring condition 12 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 80.65%.
Embodiment seven
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.655, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 7% as catalyzer, 110 DEG C of oil bath heating, react under induction stirring condition 15 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 69.78%.
Embodiment eight
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.437, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 9% as catalyzer, 130 DEG C of oil bath heating, react under induction stirring condition 15 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 84.89%.
Embodiment nine
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.655, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 11% as catalyzer, 90 DEG C of oil bath heating, react under induction stirring condition 15 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 90.65%.
Embodiment ten
Get bird rape seed oil and methyl alcohol and mix with weight ratio 1:0.546, add the solid acid sodium pyrosulfate of bird rape seed weight of oil 9% as catalyzer, 130 DEG C of oil bath heating, react under induction stirring condition 15 hours.Gained mixture under 4000r/min condition centrifugal 5 minutes after reacting.Be divided into three layers, be respectively from top to bottom methyl alcohol, glycerol mixture, biofuel, sodium pyrosulfate.After upper strata liquid being revolved to steaming after separatory, can obtain glycerine first product; Washing oil reservoir can obtain biofuel after collection of biological diesel oil after water layer water white transparency revolves steaming; After soaking in the vitriol oil after dry centrifuge tube bottom sodium pyrosulfate, reuse.Bio-diesel yield is 98.06%.
Claims (7)
1. one kind is utilized the method for bird rape seed oil biodiesel synthesis, it is characterized in that, bird rape seed oil and methyl alcohol mix with the ratio of mass ratio 1:0.436 ~ 0.546, add the solid sulphuric acid hydrogen sodium of bird rape seed weight of oil 7 ~ 9% as catalyzer, stirring reaction 12 ~ 15 hours under 110 ~ 130 DEG C of oil baths.
2. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, uses bird rape seed oil as reaction raw materials.
3. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, uses solid sulphuric acid hydrogen sodium as catalyzer.
4. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, the mass ratio of bird rape seed oil and methyl alcohol is 1:0.436 ~ 0.546.
5. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, solid sulphuric acid hydrogen sodium consumption is 7 ~ 9% of bird rape seed oil quality.
6. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, temperature of reaction is 110 ~ 130 DEG C.
7. a kind of method of utilizing bird rape seed oil biodiesel synthesis according to claim 1, is characterized in that, the reaction times is 12 ~ 15 hours.
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| CN201410450453.4A CN104178360A (en) | 2014-09-04 | 2014-09-04 | Method for preparing biodiesel from sarson seed oil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104810A (en) * | 2006-07-14 | 2008-01-16 | 上海桑迪精细化工研究所有限公司 | Preparation method for biological diesel oil |
| CN102533453A (en) * | 2011-12-26 | 2012-07-04 | 深圳清华大学研究院 | Biodiesel production method |
| CN102628006A (en) * | 2012-04-13 | 2012-08-08 | 东南大学 | Catalytic distillation production method for biodiesel |
| CN102864024A (en) * | 2012-09-24 | 2013-01-09 | 太原理工大学 | Method for producing biodiesel |
| CN103773416A (en) * | 2012-10-28 | 2014-05-07 | 青岛嘉能节能环保技术有限公司 | Method for preparing biodiesel by utilizing rapeseeds |
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- 2014-09-04 CN CN201410450453.4A patent/CN104178360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104810A (en) * | 2006-07-14 | 2008-01-16 | 上海桑迪精细化工研究所有限公司 | Preparation method for biological diesel oil |
| CN102533453A (en) * | 2011-12-26 | 2012-07-04 | 深圳清华大学研究院 | Biodiesel production method |
| CN102628006A (en) * | 2012-04-13 | 2012-08-08 | 东南大学 | Catalytic distillation production method for biodiesel |
| CN102864024A (en) * | 2012-09-24 | 2013-01-09 | 太原理工大学 | Method for producing biodiesel |
| CN103773416A (en) * | 2012-10-28 | 2014-05-07 | 青岛嘉能节能环保技术有限公司 | Method for preparing biodiesel by utilizing rapeseeds |
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Application publication date: 20141203 |