CN103555378B - A kind of preparation method of composite biodiesel - Google Patents
A kind of preparation method of composite biodiesel Download PDFInfo
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- CN103555378B CN103555378B CN201310540175.7A CN201310540175A CN103555378B CN 103555378 B CN103555378 B CN 103555378B CN 201310540175 A CN201310540175 A CN 201310540175A CN 103555378 B CN103555378 B CN 103555378B
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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
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- 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 provides a kind of preparation method of composite biodiesel.Animal-plant oil, methyl alcohol, BTX aromatics, tensio-active agent, methyl tertiary butyl ether, ring amine, diesel oil are added reactor successively, at 40-65 DEG C, stirs 20-50 minute.The method technique is simple, and mild condition, with low cost, the composite biodiesel of acquisition is limpid bright, and standing storage is not stratified, and mutual solubility is good, and dynamic property is strong.This composite biodiesel can directly be applied in the fields such as self-igniton engine, oil-firing boiler, Industrial Stoves, substitutes common GB diesel oil.
Description
Technical field
The present invention relates to production of biodiesel technical field, particularly relate to a kind of preparation method of composite biodiesel.
Background technology
In recent years, along with the fast development of China's economy, the demand sustainable growth of oil.In view of nervous situation and the huge market demand of oil fuel supply, exploitation safety, the inexorable trend that efficient, clean, high-quality alternative fuel that is environmental protection has become new forms of energy development.
Biological liquid fuel experienced by the process from alcohol-group fuel to biofuel.Aalcohols fuel has huge superiority as the fuel substitute of diesel engine, particularly for the improvement result of environment, diesel engine uses Aalcohols fuel can reduce Conventional pollution (CO, HC, NOx), the especially quantity discharged of particulate matter, can reduce smoke intensity and carcinogenic degree simultaneously.Methyl alcohol abundance, the aspects such as its production prices, accumulating and use all have very large competitive edge.Mix about alcohol-group fuel and vapour, diesel oil both at home and abroad and burn methyl alcohol or ethanol has many reports, but enter the practical stage seldom because cost is high or calorific value is low, or the performance issue of product itself, to be difficult to and petroleum products is competed.At present, methanol diesel oil fuel in exploitation, to produce and application aspect still exists some technical problems needing to be captured, wherein compare distinct issues and be poor stabilities, easily occur that layering, flash-point and cetane value are low, poor lubricity, corroding metal and rubber components are swelling.Vapour, diesel oil are mixed and are burnt methyl alcohol or ethanol, i.e. so-called methanol gasoline, methanol diesel-oil, ethanol petrol, ethanol diesel fuel, and mixed-fuel burning proportion is generally all very low, usually tens percent, still very large to the dependency degree of oil, can't deserve to be called biological liquid fuel.Alcohol-group fuel, comprises methanol fuel and alcohol fuel, and its main problem is that calorific value is low, firepower is little, consumption is large, and flash-point is low, volatile, has certain potentially danger.User, when use alcohol-group fuel, generally reflects that firepower is prosperous not, though compare the low consumption of unit price with oil fuel large, does not save money.The subject matter of biofuel is that raw material sources are difficult, cost is high, complex process.
Biofuel is the longer chain fatty acid first Ester generated by sour permutoid reaction by animal-plant oil and low-carbon alcohol, usual employing acid, alkali are carried out reaction as catalyzer and are generated, and conventional production methods exists the shortcomings such as cost is high, inhomogeneous reaction, the reaction times is longer, energy consumption is high.Dilution method, chemically catalyzed interesterification method, biological enzyme, engineering microalgae method and mini-emulsion process is had in prior art.Dilution method technique is simple, and with low content of technology, quality product does not reach vehicle fuel requirement; The starting of chemically catalyzed interesterification method the earliest, but temperature of reaction is higher, complex process, adds in reaction process and uses excessive methyl alcohol, subsequent technique must have corresponding alcohol retrieving arrangement, and treating processes is repeatedly, energy consumption is high; Biological enzyme also comes into one's own day by day, and people develop multiple catalysts as lipase, heterogeneous solid catalyzer etc., and wherein lipase is to short chain fatty alcohol (as methyl alcohol or ethanol etc.) low conversion rate, generally be only 40% ~ 60%, and easy in inactivation, cost is high, is difficult to industrialization; The problems such as it is low that heterogeneous solid catalyzer exists catalytic activity, easy in inactivation, and speed of reaction is slow.Develop supercritical process, membrane reactor etc. in addition, supercritical process is high to equipment requirements, needs to react at high temperature under high pressure; Membrane reactor then needs to consume expensive mould material, and production cost is high.Therefore, the biofuel green production process of development environment close friend, improves speed of reaction and capacity usage ratio, reduces production cost, becomes the task of top priority.
Biomass fuel is clean renewable energy source, is the oil fuel substitute products of high-quality, is typical " green energy resource ".Greatly develop biomass fuel to sustainable economic development, advance energy substitution, ensure energy security, alleviate environmental stress, control urban atmospheric pollution significant.
Summary of the invention
Object of the present invention is exactly defect for above-mentioned existence and provides a kind of preparation method of composite biodiesel.The method technique is simple, and mild condition, with low cost, the composite biodiesel of acquisition is limpid bright, and standing storage is not stratified, and mutual solubility is good, and dynamic property is strong.This composite biodiesel can directly be applied in the fields such as self-igniton engine, oil-firing boiler, Industrial Stoves, substitutes common GB diesel oil.
Preparation method's technical scheme of a kind of composite biodiesel of the present invention is that animal-plant oil, methyl alcohol, BTX aromatics, tensio-active agent, methyl tertiary butyl ether, ring amine, diesel oil are added reactor successively, at 40-65 DEG C, stir 20-50 minute.
The mass percentage adding each composition of reactor is: animal-plant oil 30%-60%, methyl alcohol 10%-20%, BTX aromatics 5%-8%, tensio-active agent 10%-23%, methyl tertiary butyl ether 0.1%-1%, ring be amine 5%-8%, diesel oil 5%-30%.
Preferably, the mass percentage adding each composition of reactor is: animal-plant oil 50%, methyl alcohol 11%, BTX aromatics 7%, tensio-active agent 15.5%, methyl tertiary butyl ether 0.5%, ring be amine 6%, diesel oil 10%.
Described diesel oil is the market available diesel oil of disposable type.
Tensio-active agent comprises isopropylcarbinol, sherwood oil, isohexane, isoamyl nitrate, triethylamine.
The each composition of tensio-active agent comprises isopropylcarbinol 10-30 part, sherwood oil 5-8 part, isohexane 10-20 part, isoamyl nitrate 20-30 part, triethylamine 10-15 part by weight.
Preferably, each composition of tensio-active agent comprises isopropylcarbinol 25 parts, sherwood oil 7 parts, isohexane 15 parts, isoamyl nitrate 20 parts, triethylamine 12 parts by weight.
Reactor stirring velocity is: being 100-120 rev/min before adding tensio-active agent, is 60-80 rev/min after adding tensio-active agent, is 50-60 rev/min after adding diesel oil.
Preferably, being 120 revs/min before adding tensio-active agent, is 60 revs/min after adding tensio-active agent.
Preferably, reactor reaction conditions is: stir 30 minutes at 60 DEG C.
Beneficial effect of the present invention is: the present invention adopts animal-plant oil, diesel oil, methyl alcohol etc. to be main raw material, then adds tensio-active agent, through simply mixing together.The tensio-active agent that the present invention adds is used for improving cetane value and the erosion resistance of product, and improves the mutual solubility of methyl alcohol and diesel oil.The method technique is simple, and mild condition, with low cost, the composite biodiesel obtained by preparation method of the present invention is limpid bright, and standing storage is not stratified, and mutual solubility is good, and dynamic property is strong.This composite biodiesel can directly be applied in the fields such as self-igniton engine, oil-firing boiler, Industrial Stoves, substitutes common GB diesel oil.
embodiment:
In order to understand the present invention better, describe technical scheme of the present invention in detail with specific examples below, but the present invention is not limited thereto.
Embodiment 1
The preparation method of a kind of composite biodiesel of the present invention, animal-plant oil 50% by weight percentage, methyl alcohol 11%, BTX aromatics 7%, tensio-active agent 15.5%, methyl tertiary butyl ether 0.5%, ring amine 6%, diesel oil 10% are added reactor successively, stirs 30 minutes at 60 DEG C.Described diesel oil is the market available diesel oil of disposable type.
The each composition of tensio-active agent comprises isopropylcarbinol 25 parts, sherwood oil 7 parts, isohexane 15 parts, isoamyl nitrate 20 parts, triethylamine 12 parts by weight.
Reactor stirring velocity is: be 120 revs/min before adding tensio-active agent, is 60 revs/min after adding tensio-active agent.
Composite biodiesel prepared by the inventive method is through Duo Jia unit real train test: deposit at 0 DEG C ,-10 DEG C ,-20 DEG C and do not analyse grease in 3 years, do not analyse methyl alcohol, transparent and stable.Prove through Industrial Boiler and diesel motor bench testing: Diesel oil storage is stablized, flameholding, and calorific value is high, normally, engine is stable for oil circuit and nozzle atomization.
Table 1 is depicted as composite biodiesel and the national standard comparison sheet of the embodiment of the present invention 1 preparation:
Table 1
。
Embodiment 2
The preparation method of a kind of composite biodiesel of the present invention, animal-plant oil 40% by weight percentage, methyl alcohol 15%, BTX aromatics 6.4%, tensio-active agent 12%, methyl tertiary butyl ether 0.1%, ring amine 6.5%, diesel oil 20% are added reactor successively, stirs 40 minutes at 50 DEG C.Described diesel oil is the market available diesel oil of disposable type.
The each composition of tensio-active agent comprises isopropylcarbinol 15 parts, sherwood oil 5 parts, isohexane 20 parts, isoamyl nitrate 25 parts, triethylamine 15 parts by weight.
Reactor stirring velocity is: being 100 revs/min before adding tensio-active agent, is 80 revs/min after adding tensio-active agent, is 50 revs/min after adding diesel oil.
Composite biodiesel prepared by the inventive method is through Duo Jia unit real train test: deposit at 0 DEG C ,-10 DEG C ,-20 DEG C and do not analyse grease in 3 years, do not analyse methyl alcohol, transparent and stable.Prove through Industrial Boiler and diesel motor bench testing: Diesel oil storage is stablized, flameholding, and calorific value is high, normally, engine is stable for oil circuit and nozzle atomization.
Table 2 is depicted as composite biodiesel and the national standard comparison sheet of the embodiment of the present invention 2 preparation:
Table 2
。
Embodiment 3
The preparation method of a kind of composite biodiesel of the present invention, animal-plant oil 30% by weight percentage, methyl alcohol 18%, BTX aromatics 5%, tensio-active agent 10%, methyl tertiary butyl ether 1%, ring amine 6%, diesel oil 30% are added reactor successively, stirs 50 minutes at 45 DEG C.Described diesel oil is the market available diesel oil of disposable type.
The each composition of tensio-active agent comprises isopropylcarbinol 12 parts, sherwood oil 8 parts, isohexane 12 parts, isoamyl nitrate 25 parts, triethylamine 15 parts by weight.
Reactor stirring velocity is: being 120 revs/min before adding tensio-active agent, is 70 revs/min after adding tensio-active agent, is 60 revs/min after adding diesel oil.
Composite biodiesel prepared by the inventive method is through Duo Jia unit real train test: deposit at 0 DEG C ,-10 DEG C ,-20 DEG C and do not analyse grease in 3 years, do not analyse methyl alcohol, transparent and stable.Prove through Industrial Boiler and diesel motor bench testing: Diesel oil storage is stablized, flameholding, and calorific value is high, normally, engine is stable for oil circuit and nozzle atomization.
Table 3 is depicted as composite biodiesel and the national standard comparison sheet of the embodiment of the present invention 3 preparation:
Table 3
。
Claims (5)
1. a preparation method for composite biodiesel, is characterized in that, animal-plant oil, methyl alcohol, BTX aromatics, tensio-active agent, methyl tertiary butyl ether, ring amine, diesel oil are added reactor successively, at 40-65 DEG C, stir 20-50 minute;
The mass percentage adding each composition of reactor is: animal-plant oil 30%-60%, methyl alcohol 10%-20%, BTX aromatics 5%-8%, tensio-active agent 10%-23%, methyl tertiary butyl ether 0.1%-1%, ring be amine 5%-8%, diesel oil 5%-30%;
The each composition of tensio-active agent comprises isopropylcarbinol 10-30 part, sherwood oil 5-8 part, isohexane 10-20 part, isoamyl nitrate 20-30 part, triethylamine 10-15 part by weight;
Reactor stirring velocity is: being 100-120 rev/min before adding tensio-active agent, is 60-80 rev/min after adding tensio-active agent, is 50-60 rev/min after adding diesel oil.
2. the preparation method of a kind of composite biodiesel according to claim 1, it is characterized in that, the mass percentage adding each composition of reactor is: animal-plant oil 50%, methyl alcohol 11%, BTX aromatics 7%, tensio-active agent 15.5%, methyl tertiary butyl ether 0.5%, ring be amine 6%, diesel oil 10%.
3. the preparation method of a kind of composite biodiesel according to claim 1, is characterized in that, each composition of tensio-active agent comprises isopropylcarbinol 25 parts, sherwood oil 7 parts, isohexane 15 parts, isoamyl nitrate 20 parts, triethylamine 12 parts by weight.
4. the preparation method of a kind of composite biodiesel according to claim 1, is characterized in that, is 120 revs/min before adding tensio-active agent, is 60 revs/min after adding tensio-active agent.
5. the preparation method of a kind of composite biodiesel according to claim 1, is characterized in that, reactor reaction conditions is: stir 30 minutes at 60 DEG C.
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| CN102134516A (en) * | 2011-02-10 | 2011-07-27 | 郑州汇绿科技有限公司 | High cleanness methanol diesel and preparation method thereof |
| CN102304392A (en) * | 2011-08-04 | 2012-01-04 | 孔永平 | Composite biodiesel and preparation method thereof |
| CN102399600A (en) * | 2011-09-28 | 2012-04-04 | 武汉嘉源华环保科技发展有限公司 | Illegal cooking oil composite renewable fuel and its preparation method |
| CN102504890A (en) * | 2011-11-08 | 2012-06-20 | 焦作市新生生物化工有限公司 | Composite methanol diesel and preparation method thereof |
-
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- 2013-11-05 CN CN201310540175.7A patent/CN103555378B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594512A (en) * | 2004-06-29 | 2005-03-16 | 四川大学 | Manioca biological fuel mixture |
| CN101215483A (en) * | 2008-01-18 | 2008-07-09 | 陈林 | Energy-saving discharge-reducing methanol diesel oil |
| CN102093917A (en) * | 2009-12-09 | 2011-06-15 | 济南开发区星火科学技术研究院 | Blended fuel oil capable of substituting petrochemical diesel and preparation method thereof |
| CN102134516A (en) * | 2011-02-10 | 2011-07-27 | 郑州汇绿科技有限公司 | High cleanness methanol diesel and preparation method thereof |
| CN102304392A (en) * | 2011-08-04 | 2012-01-04 | 孔永平 | Composite biodiesel and preparation method thereof |
| CN102399600A (en) * | 2011-09-28 | 2012-04-04 | 武汉嘉源华环保科技发展有限公司 | Illegal cooking oil composite renewable fuel and its preparation method |
| CN102504890A (en) * | 2011-11-08 | 2012-06-20 | 焦作市新生生物化工有限公司 | Composite methanol diesel and preparation method thereof |
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