CN103087789B - Preparation method of environment-friendly compound methanol gasoline - Google Patents
Preparation method of environment-friendly compound methanol gasoline Download PDFInfo
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- CN103087789B CN103087789B CN201310064713.XA CN201310064713A CN103087789B CN 103087789 B CN103087789 B CN 103087789B CN 201310064713 A CN201310064713 A CN 201310064713A CN 103087789 B CN103087789 B CN 103087789B
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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 discloses a preparation method of an environment-friendly compound methanol gasoline. The preparation method comprises the following steps: mixing castor oil with biodiesel prepared from castor oil, and adding the obtained mixture into methanol so as to obtain a first solution; then, adding dimethyl carbonate, dimethyl ether and propiolic alcohol into the first solution so as to obtain a second solution; and finally, mixing the second solution with 85-97# gasoline through stirring so as to obtain the environment-friendly compound methanol gasoline. The environment-friendly compound methanol gasoline prepared by using the method disclosed by the invention keeps stable and can not be layered at the temperature of 40 to -20 DEG C, and the pressure of saturated vapor can be kept in 50kPa, thereby effectively reducing the air resistance trend. According to the preparation method, castor oil and biodiesel prepared from castor oil are mainly taken as a cosolvent and an air resistance reducing agent of the methanol gasoline, and the application of non-environment-friendly additives is avoided, so that the environmental friendliness of fuel is guaranteed, the production cost can be effectively reduced, and the economic benefit can be improved.
Description
Technical field
The present invention relates to methanol gasoline preparing technical field, be specifically related to a kind of preparation method of environment-friendly composite methanol gasoline.
Background technology
The external interdependency of China's oil exceedes 50% at present, has exceeded national energy security barrier line.China is increasing to the demand of oil, therefore, develops automobile-used energy substitution product Methanol-gasoline and seems more and more urgent.Meanwhile, convert coal to the fuel methanol petroleum replacing energy and there is good economy, environmental benefit, can improve the level of comprehensive utilization of China's coal resource, found Processes For Effective Conversion for accounting for national reserves high-sulfur inferior coal over half simultaneously, drive coal chemical industry industry restructuring comprehensively, the comprehensive benefit of raising industry, has special realistic meaning and strategic importance.
But Methanol-gasoline faces many technical problems at present.The polarity of methyl alcohol is stronger, can be with water with arbitrarily than dissolving each other.And gasoline is mainly by C4-C12 aliphatic hydrocarbon and cyclic hydrocar-bons, and containing a low polarity polycomponent mixed system of the compounds such as a small amount of aromatic hydrocarbon and sulfide, within the scope of significant proportion, the two is immiscible for methyl alcohol and gasoline, there is the problem of low-temperature phase stability in methanol gasoline, has influence on its storage and safe handling.In addition, the steaming pressure ratio gasoline of methyl alcohol is low, after methyl alcohol mixes with gasoline, in propellant combination, can produce low azeotropic point azeotrope, and Methanol-gasoline is plus deviation to Raoult's law, and saturated vapor pressure increases, and the possibility that petrol motor produces vapour lock increases.Therefore the key that, methanol gasoline is applied is to solve its stability and vapo(u)rability problem.
The phase stability problem that solves methanol gasoline is to add solubility promoter in methanol gasoline.At present, methanol gasoline solubility promoter used has the compounds such as ethers, ketone, higher alcohols, low-carbon (LC) fusel class, fat hydrocarbon, fatty acid, aromatics class.In addition, also need to add the sending down abnormally ascending resists such as ketone, aldehydes, acetal ketone, ethers.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of preparation method of environment-friendly composite methanol gasoline, can solve two problems that methanol gasoline exists simultaneously, can reduce again the consumption of additive, simplify the production technique of methanol gasoline, make the cost of methanol gasoline, be conducive to improve the economic benefit of methanol gasoline, in addition, owing to not adding any species that contain metal or contain nitrogen, sulphur, therefore can ensure the high-environmental of this fuel.
In order to achieve the above object, the technical solution used in the present invention is:
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is that 1:1-10:1 mixes according to volume ratio, described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:1-10, and described methyl alcohol is technical grade product;
The 3rd step, be methylcarbonate, the dme of 0.5-5% and the propiolic alcohol of 0.01-0.5% of 0.5-5% to adding total volume concentration in the first solution, obtain the second solution, described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 85-97# gasoline, and wherein the volume ratio of the second solution and gasoline is 15-85:85-15, obtains environment-friendly methanol gasoline.
The environment-friendly methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention mainly adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoid using the additive of the non-feature of environmental protection simultaneously, the feature of environmental protection that ensures fuel, can reduce production costs effectively, increases economic efficiency.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 1:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:1, and described methyl alcohol is technical grade product;
The 3rd step, is 3% methylcarbonate, 3% dme and 0.01% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 15:85, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Embodiment 2
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 10:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:10, and described methyl alcohol is technical grade product;
The 3rd step, is 5% methylcarbonate, 5% dme and 0.3% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 15:85, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Embodiment 3
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 5:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:8, and described methyl alcohol is technical grade product;
The 3rd step, is 2% methylcarbonate, 5% dme and 0.05% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 93# gasoline, and wherein the volume ratio of the second solution and gasoline is 30:70, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Embodiment 4
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 3:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:6, and described methyl alcohol is technical grade product;
The 3rd step, is 0.8% methylcarbonate, 2% dme and 0.2% propiolic alcohol to adding total volume concentration in above-mentioned solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 25:75, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Embodiment 5
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 4:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:4, and described methyl alcohol is technical grade product;
The 3rd step, is 1% methylcarbonate, 3% dme and 0.5% propiolic alcohol to adding total volume concentration in above-mentioned solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 65:35, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Embodiment 6
A preparation method for environment-friendly composite methanol gasoline, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 2:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:5, and described methyl alcohol is technical grade product;
The 3rd step, is 0.8% methylcarbonate, 2% dme and 0.03% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 97# gasoline, and wherein the volume ratio of the second solution and gasoline is 50:50, obtains environment-friendly methanol gasoline.
The methanol gasoline that the present invention obtains keeps stablizing not stratified at 40 to-20 DEG C, and saturation steam pressure energy remains in 50kPa, effectively reduces vapour lock tendency.Due to the present invention only adopt Viscotrol C and the biofuel prepared by Viscotrol C as solubility promoter and the sending down abnormally ascending resist of methanol gasoline, avoided adding of large amount of complex additive, ensure the feature of environmental protection of fuel, can effectively reduce production costs, increase economic efficiency.
Claims (7)
1. a preparation method for environment-friendly composite methanol gasoline, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is that 1:1-10:1 mixes according to volume ratio, described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:1-10, and described methyl alcohol is technical grade product;
The 3rd step, be methylcarbonate, the dme of 0.5-5% and the propiolic alcohol of 0.01-0.5% of 0.5-5% to adding total volume concentration in the first solution, obtain the second solution, described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 85-97# gasoline, and wherein the volume ratio of the second solution and gasoline is 15-85:85-15, obtains environment-friendly methanol gasoline.
2. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 1:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:1, and described methyl alcohol is technical grade product;
The 3rd step, is 3% methylcarbonate, 3% dme and 0.01% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 15:85, obtains environment-friendly methanol gasoline.
3. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 10:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:10, and described methyl alcohol is technical grade product;
The 3rd step, is 5% methylcarbonate, 5% dme and 0.3% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 15:85, obtains environment-friendly methanol gasoline.
4. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 5:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:8, and described methyl alcohol is technical grade product;
The 3rd step, is 2% methylcarbonate, 5% dme and 0.05% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 93# gasoline, and wherein the volume ratio of the second solution and gasoline is 30:70, obtains environment-friendly methanol gasoline.
5. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 3:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:6, and described methyl alcohol is technical grade product;
The 3rd step, is 0.8% methylcarbonate, 2% dme and 0.2% propiolic alcohol to adding total volume concentration in above-mentioned solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 25:75, obtains environment-friendly methanol gasoline.
6. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 4:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:4, and described methyl alcohol is technical grade product;
The 3rd step, is 1% methylcarbonate, 3% dme and 0.5% propiolic alcohol to adding total volume concentration in above-mentioned solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 90# gasoline, and wherein the volume ratio of the second solution and gasoline is 65:35, obtains environment-friendly methanol gasoline.
7. the preparation method of a kind of environment-friendly composite methanol gasoline according to claim 1, is characterized in that, comprises the following steps:
The first step, the biofuel of preparing by Viscotrol C with by Viscotrol C is mixed, and wherein Viscotrol C and the biofuel volume ratio prepared by Viscotrol C are 2:1, and described Viscotrol C and the biofuel of being prepared by Viscotrol C are commercially available technical grade product;
Second step, adds said mixture in methyl alcohol, obtains the first solution, and the volume ratio of mixture and methyl alcohol is 1:5, and described methyl alcohol is technical grade product;
The 3rd step, is 0.8% methylcarbonate, 2% dme and 0.03% propiolic alcohol to adding total volume concentration in the first solution, obtains the second solution, and described methylcarbonate, dme, propiolic alcohol are technical grade product, and purity is greater than 90%;
The 4th step, is uniformly mixed the second solution and 97# gasoline, and wherein the volume ratio of the second solution and gasoline is 50:50, obtains environment-friendly methanol gasoline.
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| CN1876770A (en) * | 2005-06-07 | 2006-12-13 | 上海精醇化工科技发展有限公司 | Consumption reducing, environment-friendly alcohol ether fuel and preparation method thereof |
| CN101717672A (en) * | 2009-12-15 | 2010-06-02 | 北京航涛新能源科学研究院 | Flexible clean fuel for vehicle and special cracking reactor thereof |
| JP2011006702A (en) * | 2010-09-10 | 2011-01-13 | Cosmo Oil Co Ltd | Production method for lead-free gasoline |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563290A (en) * | 2004-04-07 | 2005-01-12 | 宋振中 | Clean fuel |
| CN1876770A (en) * | 2005-06-07 | 2006-12-13 | 上海精醇化工科技发展有限公司 | Consumption reducing, environment-friendly alcohol ether fuel and preparation method thereof |
| CN101717672A (en) * | 2009-12-15 | 2010-06-02 | 北京航涛新能源科学研究院 | Flexible clean fuel for vehicle and special cracking reactor thereof |
| JP2011006702A (en) * | 2010-09-10 | 2011-01-13 | Cosmo Oil Co Ltd | Production method for lead-free gasoline |
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