CN103805300A - High-ratio methanol fuel composite additive for vehicles - Google Patents
High-ratio methanol fuel composite additive for vehicles Download PDFInfo
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- CN103805300A CN103805300A CN201410025526.5A CN201410025526A CN103805300A CN 103805300 A CN103805300 A CN 103805300A CN 201410025526 A CN201410025526 A CN 201410025526A CN 103805300 A CN103805300 A CN 103805300A
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Abstract
The invention discloses a high-ratio methanol fuel composite additive for vehicles. The composite additive is prepared from the following raw materials in percentage by mass: 50-70% of aliphatic ester, 10-30% of nitrate, 5-10% of glycerol, 5-10% of benzotriazole and 5-10% of high carbon alcohol. According to the high-ratio methanol fuel composite additive, the aliphatic ester of which the carbon chain number is about 18 is adopted, and the lubricating property, corrosion resistance and wear resistance of the methanol fuel for vehicles can be greatly improved. The nitrate is an excellent ignition improver and combustion improver, and the glycerol, benzotriazole and high carbon alcohol are excellent corrosion inhibition components and cosolvents. According to the methanol fuel composite additive for vehicles prepared by mixing the substances, the performance of the fuel is greatly improved.
Description
Technical field
The invention belongs to function composite fuel dope, can obviously solve and improve the shortcomings such as gasoline of high proportion methanol poor lubricity, power reduce, corrodibility is strong.
Background technology
Methyl alcohol is important industrial chemicals, is also one of the cleanest fuel.At present, world petroleum resource reduces increasingly, and PM2.5 problem day is aobvious outstanding, in global range, Development of Electric Vehicles baffles, methanol fuel and methanol vehicle industrialization cause concern and the attention of various circles of society day by day, and methyl alcohol economy is quietly risen, and is the new industry attracting tremendous attention.Along with the promulgation of GB/T23799-2009 " Vehicular methanol petrol (M85) ", two methanol fuel national standards of GB/T23510-2009 " fuel methanol ", and the enforcement of Ministry of Industry and Information " two one cities of province " methanol vehicle pilot work, gasoline of high proportion methanol is applied the new period that has entered rapid expansion national market.
The methyl alcohol as an alternative feature of environmental protection and the economy of fuel is given prominence to.The conventional discharge of methanol vehicle tail gas is far below Fuel Petroleum, and compared with homotype gasoline automobile, CO discharge can reduce by 45%, HC discharge can reduce by 76%, illustrates that the conventional discharge of methanol vehicle tail gas, far below Fuel Petroleum, is acknowledged as clean energy; The measure of unregulated exhaust thing process external purification is well below similar Fuel Petroleum; Can meet following fuel methanol fuels cleaning and greenization requirement.With current methanol engine state of the art, methyl alcohol and gasoline substitute than reaching between 1.6-1.8:1, and methyl alcohol substitutes than reaching 2.0:1 with diesel oil.7.45 yuan/L of existing market gasoline price, 2.5 yuan/L of methyl alcohol price.According to methanol vehicle and the actual operation of gasoline car fuel economy comparing result (take Jetta as example): gasoline 8.0L/100km, M100 methyl alcohol 13.0L/100km, each methanol vehicle can 27.1 yuan/100km of capable of saving fuel oil expense, has tempting economy.
But there is following phenomenon in methanol gasoline particularly gasoline of high proportion methanol in long-term use procedure: fuels lubricity reduces automobile oil thrower, oil fuel pump are produced to wearing and tearing, and this is that the fuel characteristic of methyl alcohol itself determines; Fuel oil has stronger corrodibility, particularly the corrosions of metal such as aluminium, copper, zinc is increased, and causes fuel oil supply system to produce a certain amount of metallic compound impurity, causes part component to stop up or adds galling; The latent heat of vaporization of methyl alcohol is larger, and calorific value is lower, and while causing burning methanol, ignition characteristic is slightly poor.Because above phenomenon exists, while causing automobile burning methanol, easily cause oil thrower earlier period damage, the oil fuel pump life-span reduces, fuel filter is frequently changed, automobile power reduces the bad phenomenon such as oil consumption increase.The present invention is directed to above phenomenon and select the lubricant that dissolves in methyl alcohol and dissolve in again gasoline, to improve fuel lubricity; Select corrosion inhibitor, reduce its corrodibility; Select high heating value, ignitable chemical substance, improve its ignition characteristic corresponding raising efficiency of combustion.
Summary of the invention
The present invention is according to the above-mentioned characteristic of high-proportion methanol fuel, have for select with the methyl alcohol additive compound stable and that can significantly increase its oilness, dynamic property and erosion resistance that dissolves each other and form.After ball milling test, stand driving experiment and erosion resistance test, prove effectively to improve oilness, dynamic property and the erosion resistance of high-proportion methanol fuel, vehicle service condition is good, can significantly improve oil fuel pump, nozzle life and vehicle accelerating ability energy.After the present invention and methyl alcohol and gasoline are composite, reach the object that improves fuel correlated performance.
The composite additive of methanol fuel for vehicles at high proportion of the present invention, is characterized in that being made up of the raw material of following mass percent:
Fatty acid ester 50%-70%, nitrate esters 10%-30%, glycerol 5%-10%, benzotriazole 5%-10%, high-carbon alcohols 5%-10%.
The described composite additive of methanol fuel for vehicles at high proportion, the mass percent that it is characterized in that described each raw material is fatty acid ester 50%-60%, nitrate esters 20%-30%, glycerol 8%-10%, benzotriazole 5%-10%, high-carbon alcohols 10%.
The described composite additive of methanol fuel for vehicles at high proportion, is characterized in that described fatty acid ester raw material is one or more in fatty acid methyl ester, fatty-acid ethyl ester, isopropyl fatty acid ester or like product; Described nitrate esters raw material is one or more in amyl nitrate, isooctyl ester nitrate, cyclohexyl nitrate or like product; Described high-carbon alcohols feedstock is one or more in ethanol, propyl alcohol, butanols, Virahol, isopropylcarbinol or like product.
The compound method of the described composite additive of methanol fuel for vehicles is at high proportion as follows: in the water bath with thermostatic control of 60 ℃ take higher alcohols as solvent is in proportion by glycerol and benzotriazole stirring and dissolving, the solution having dissolved is mixed with nitrate esters raw material, last again by even to the solution mixing and fatty acid ester mediation.
The methanol fuel for vehicles of the described composite additive of methanol fuel for vehicles at high proportion, it is characterized in that in described methanol fuel for vehicles, additive volume ratio is 0.1%-5%, described methanol fuel for vehicles comprises in M15-M100 methanol fuel for vehicles any one.
After additive of the present invention directly being mixed with methyl alcohol/methanol gasoline when allotment methanol fuel for vehicles, can use.
The present invention has the following advantages:
Fatty acid ester, higher alcohols, nitrate esters and methyl alcohol and gasoline all have good mutual solubility, both can fully guarantee stable being distributed in methanol gasoline of plural components, can also improve the intermiscibility of methyl alcohol and gasoline simultaneously.
The carbochain of fatty acid ester is in 18 left and right, kinematic viscosity is the more than 5 times of gasoline, can effectively improve the oilness of methanol fuel, in fatty acid ester quasi-molecule, contain hydroxyl simultaneously, there is certain polarity, oil component in can also adsorbed fuel except itself forms the stable oil film of one deck between metal and methyl alcohol, has both increased the lubricity between moving parts, has also improved the performance of methanol tolerance corrosion.Test discovery by ball milling, add the methanol fuel resistance to abrasion of this additive to increase substantially, and resistance to abrasion is very stable, grinding defect diameter is obviously better than the sample not adding.
Nitrate esters is good ignition improver and ignition dope, it can make the burning of methyl alcohol and each fuel oil component more abundant, find by stand and driving experiment simultaneously, nitrate esters can be optimized the ignition characteristic of gasoline of high proportion methanol on microcosmic, lifting vehicle accelerating ability and dynamic property significantly, and operate steadily, do not have pinking engine knock phenomenon to occur.
Glycerol, benzotriazole, high-carbon alcohols are good corrosion inhibition component and solubility promoter, with the compound rotten effect that presses down that can give full play to separately of other component in the present invention, can effectively suppress high-proportion methanol fuel to various metals, the particularly metallic corrosion to the copper such as brass, red copper class material such as aluminium, iron, zinc.Show that through long-term driving test the metal part surface in oil pump, oil fuel pipe, nozzle and fuel tank parts well keeps original metalluster, does not have abrasion and corrosion vestige.
Below wear test and the rig test result of the composite additive of methanol fuel for vehicles at high proportion of the present invention:
wear test
One, test materials
Tetra-ball machine test device
Microscope: micrometer is housed, 0.01 millimeter of the value of reading
Stopwatch: calibration 0. 1 seconds
Steel ball: meet the II level bearing steel ball that GB308 " steel ball " requires, 12.7 millimeters of diameters, material GCr15.
Two, test explanation
Test is compared No. 93 pure gasoline, M85 fuel, M100 fuel and is added the M85 fuel of 2% additive of the present invention, the resistance to abrasion of M100 fuel respectively.Method is with reference to SH/T0189-92 " lubrication oil antiwear performance measurement method (four-ball tester method) ", because consider that the resistance to abrasion of gasoline, methyl alcohol is not the same order of magnitude with respect to lubricating oil, so the pressure that whole test is selected is 10KG.
Three, test-results
The wear-resistant data of No. 93 pure gasoline
The wear-resistant data of M85 fuel
Add the wear-resistant data of 2% additive M85 fuel of the present invention
The wear-resistant data of M100 fuel
Add the wear-resistant data of 2% additive M100 fuel of the present invention
Four, experiment conclusion
By wear test data analysis, the resistance to abrasion that can find out No. 93 pure gasoline is very stable, with the increasing of test period, grinding defect diameter smoothly rises, have good stability, and M85 fuel not only resistance to abrasion shown great unstable not as gasoline but also resistance to abrasion, resistance to abrasion is very poor sometimes, sometimes better again, irregular variation and all values are all higher than No. 93 pure gasoline.M85 fuel is adding after 2% additive of the present invention, and resistance to abrasion significantly increases, and resistance to abrasion is very stable, and the level and smooth grinding defect diameter of trend approaches pure gasoline, and anti-wear effect clearly.It should be noted that, M100 fuel is because resistance to abrasion is too poor, four-ball tester can be directly in interlocking pattern in the short period of time, therefore under this working order, test period can not be oversize, so measure unit is shortened to second, data show that M100 fuel adds after 2% additive of the present invention fastness to wear to have significantly and promotes, and anti-wear effect is better obviously.
stand and road test
One, test car
| License plate number | Brand and model | Engine number | VIN | Odometer reading |
| ? | ? | ? | ? | ? |
Two, test fuel situation
Test is for No. 1 M100 methanol fuel with fuel, and No. 2 for adding the M100 fuel of 2% additive of the present invention.
Test adds respectively No. 1, No. 2 two kinds of fuel to carry out respectively stand and actual road test result, the power situation of two kinds of fuel of contrast verification with car.
Three, test basis
1, GB/T12547-1990 " the minimum stabilizing speed test method of automobile "
2, GB/T12543-1990 " automobile acceleration test method "
3, GB/T12544-1990 " automobile max. speed test method "
4, GB/T12539-1990 " automobile climb very steep slopes test method "
Four, test-results
(1) chassis output rating and torsion contrast rig test result
(2) the most high-grade 40-80km/h acceleration characteristics contrast rig test result
| Project | No. 1 | No. 2 | Gradient (%) (No. 2 and No. 1 comparison) |
| Acceleration distance (m) | 351 | 341 | -2.9% |
| Pick-up period (s) | 20.69 | 20.04 | -3.2% |
(3) minimum stabilizing speed contrast actual road test result
(4) the most high-grade 40-100 km/h acceleration characteristics contrast actual road test results
| Project | No. 1 | No. 2 | Gradient (%) (No. 2 and No. 1 comparison) |
| Acceleration distance (m) | 681.6 | 670.9 | -1.6% |
| Pick-up period (s) | 34.2 | 33.6 | -1.8% |
(5) starting gearshift 0-100 km/h acceleration characteristics contrast actual road test results continuously
| Project | No. 1 | No. 2 | Gradient (%) (No. 2 and No. 1 comparison) |
| Acceleration distance (m) | 719.2 | 709.1 | -1.4% |
| Pick-up period (s) | 42 | 41.2 | -1.9% |
(6) max. speed contrast actual road test result
(7) climb very steep slopes contrast actual road test result
Five, experiment conclusion
By stand and road tests data analysis, add the M100 methanol fuel of additive of the present invention than the M100 fuel not adding, domain output rating on average increases by 2.3%, and torsion on average increases by 2.0%; 40-80km/h acceleration distance reduces 2.9%, and the pick-up period shortens 3.2%; 40-100km/h acceleration distance reduces 1.6%, and the pick-up period shortens 1.8%; Starting continuously gearshift 0-100km/h acceleration distance reduces 1.4%, and the pick-up period shortens 1.9%; Max. speed increases by 1.4%; Minimum stabilizing speed declines 1.9%; Climbable gradient rises 1.4%.Car load dynamic performance has had obvious lifting, has reached or has approached former car gasoline status level.
Embodiment
Embodiment 1
Get fatty acid methyl ester 60Kg, amyl nitrate 20 Kg, glycerol 5 Kg, benzotriazole 10 Kg, ethanol 5 Kg.
In the water bath with thermostatic control of 60 ℃ take 5 Kg ethanol as solvent, 5 Kg glycerol and benzotriazole 10Kg are added in turn in above-mentioned solvent and be stirred to completely and dissolve, in the solution having dissolved, add 20 Kg amyl nitrates and stir and make even mixing, finally mixing solutions mixed with 60Kg fatty acid methyl ester and be in harmonious proportion evenly, obtaining 100 Kg methanol fuel for vehicles at high proportion of the present invention composite additive.
Get above-mentioned additive 3Kg and add in 97 KgM100 methanol fuels, stir and obtain M100 methanol fuel for vehicles.
Embodiment 2
Get isopropyl fatty acid ester 50Kg, isooctyl ester nitrate 30 Kg, glycerol 7Kg, benzotriazole 5 Kg, propyl alcohol 8Kg.
In the water bath with thermostatic control of 60 ℃ take 8Kg propyl alcohol as solvent, 7 Kg glycerol and benzotriazole 5Kg are added in turn in above-mentioned solvent and be stirred to completely and dissolve, in the solution having dissolved, add 30 Kg isooctyl ester nitrates and stir and make even mixing, finally mixing solutions mixed with 50Kg isopropyl fatty acid ester and be in harmonious proportion evenly, obtaining 100 Kg methanol fuel for vehicles at high proportion of the present invention composite additive.
Get above-mentioned additive 1Kg and add in 99 KgM85 methanol fuels, stir and obtain M85 Vehicular methanol petrol fuel.
Embodiment 3
Get fatty-acid ethyl ester 70Kg, cyclohexyl nitrate 10 Kg, glycerol 10Kg, benzotriazole 5 Kg, isopropylcarbinol 5Kg.
In the water bath with thermostatic control of 60 ℃ take 5Kg isopropylcarbinol as solvent, 10Kg glycerol and benzotriazole 5Kg are added respectively in above-mentioned solvent and be stirred to completely and dissolve, in the solution having dissolved, add 10 Kg cyclohexyl nitrates and stir and make even mixing, finally mixing solutions mixed with 70Kg fatty-acid ethyl ester and be in harmonious proportion evenly, obtaining 100 Kg methanol fuel for vehicles at high proportion of the present invention composite additive.
Get above-mentioned additive 0.1Kg and add in 99.9KgM15 methanol fuel, stir and obtain 100Kg M15 Vehicular methanol petrol fuel.
Embodiment 4
Get fatty acid methyl ester 60Kg, cyclohexyl nitrate 15Kg, glycerol 9Kg, benzotriazole 6 Kg, Virahol 10Kg.
In the water bath with thermostatic control of 60 ℃ take 10Kg Virahol as solvent, 9Kg glycerol and benzotriazole 6Kg are added respectively in above-mentioned solvent and be stirred to completely and dissolve, in the solution having dissolved, add 15Kg cyclohexyl nitrate and stir and make even mixing, finally mixing solutions mixed with 60Kg fatty acid methyl ester and be in harmonious proportion evenly, obtaining 100 Kg methanol fuel for vehicles at high proportion of the present invention composite additive.
Get above-mentioned additive 5Kg and add in 95 KgM100 methanol fuels, stir and obtain M100 methanol fuel for vehicles.
Claims (5)
1. a gasoline of high proportion methanol composite additive, is characterized in that being made up of the raw material of following mass percent:
Fatty acid ester 50%-70%, nitrate esters 10%-30%, glycerol 5%-10%, benzotriazole 5%-10%, high-carbon alcohols 5%-10%.
2. a kind of gasoline of high proportion methanol composite additive according to claim 1, the mass percent that it is characterized in that described each raw material is fatty acid ester 50%-60%, nitrate esters 20%-30%, glycerol 8%-10%, benzotriazole 5%-10%, high-carbon alcohols 10%.
3. according to claim a kind of gasoline of high proportion methanol composite additive according to claim 1, it is characterized in that described fatty acid ester raw material is one or more in fatty acid methyl ester, fatty-acid ethyl ester, isopropyl fatty acid ester or like product; Described nitrate esters raw material is one or more in amyl nitrate, isooctyl ester nitrate, cyclohexyl nitrate or like product; Described high-carbon alcohols feedstock is one or more in ethanol, propyl alcohol, butanols, Virahol, isopropylcarbinol or like product.
4. in a claim 1-3, the gasoline of high proportion methanol described in arbitrary claim is as follows by the compound method of composite additive: in the water bath with thermostatic control of 60 ℃ take higher alcohols as solvent is in proportion by glycerol and benzotriazole stirring and dissolving, the solution having dissolved is mixed with nitrate esters raw material, finally again the solution mixing mixed with fatty acid ester raw material and be in harmonious proportion evenly.
5. a methanol fuel for vehicles that contains the composite additive of the gasoline of high proportion methanol described in arbitrary claim in claim 1-4, it is characterized in that in described methanol fuel for vehicles, additive volume ratio is 0.1%-5%, described methanol fuel for vehicles comprises in M15-M100 methanol fuel for vehicles any one.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105062578A (en) * | 2015-08-24 | 2015-11-18 | 安徽圣宝新能源科技有限公司 | Novel modified alcohol-based fuel and preparation method thereof |
| CN106336915A (en) * | 2016-08-19 | 2017-01-18 | 桂林福冈新材料有限公司 | Energy-saving environment-friendly gasoline additive |
| CN107099345A (en) * | 2017-03-31 | 2017-08-29 | 兰州燚能生物科技有限责任公司 | Biological alcohol-based fuel oil hydrotropy solubilizer |
| CN108315059A (en) * | 2018-04-02 | 2018-07-24 | 湖南华南石化股份有限公司 | A kind of accord method of methanol gasoline |
| CN108384588A (en) * | 2018-04-02 | 2018-08-10 | 湖南华南石化股份有限公司 | A kind of methanol gasoline bio-additive |
| CN108410522A (en) * | 2018-04-02 | 2018-08-17 | 湖南华南石化股份有限公司 | A method of reconciliation methanol gasoline |
| CN108441270A (en) * | 2018-04-02 | 2018-08-24 | 湖南华南石化股份有限公司 | A method of reconciliation ethanol petrol |
| CN110527567A (en) * | 2019-08-30 | 2019-12-03 | 深圳融易超越科技有限公司 | M100 methanol fuel for vehicles performance improver and preparation method |
| CN113337320A (en) * | 2021-02-07 | 2021-09-03 | 浙江吉利控股集团有限公司 | Fuel additive and methanol fuel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105062578A (en) * | 2015-08-24 | 2015-11-18 | 安徽圣宝新能源科技有限公司 | Novel modified alcohol-based fuel and preparation method thereof |
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| CN110527567A (en) * | 2019-08-30 | 2019-12-03 | 深圳融易超越科技有限公司 | M100 methanol fuel for vehicles performance improver and preparation method |
| CN113337320A (en) * | 2021-02-07 | 2021-09-03 | 浙江吉利控股集团有限公司 | Fuel additive and methanol fuel |
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Application publication date: 20140521 |