CN109897678A - A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine - Google Patents
A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine Download PDFInfo
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- CN109897678A CN109897678A CN201910109026.2A CN201910109026A CN109897678A CN 109897678 A CN109897678 A CN 109897678A CN 201910109026 A CN201910109026 A CN 201910109026A CN 109897678 A CN109897678 A CN 109897678A
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- soybean oil
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Abstract
The invention discloses a kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine, by following volumes score at being grouped as: 30%~40% soybean oil of methanol, 20%~35% polymethoxy dimethyl ether (PODE) 35%~40%.Novel blended fuel provided by the invention, soybean oil/methanol/PODE have good intersolubility, and gained fuel combination stores no layering for a long time.
Description
Technical field
The present invention relates to the renewable alternative energy source fields of internal combustion engine, and in particular to a kind of novel mixing suitable for diesel engine
Fuel.
Background technique
With the fast development of China's economic, fuel aggregate demand is increasing.In order to cope with fuel crunch problem, the whole world
The concern for finding substitution and clean fuel resource is being risen.The essential condition of alternative fuel is sustainable fuel supply life
It produces.Wherein biomass is typically considered the material of all plants and plant origin, such as oil crops, starch, sugar and animal excreta
Just equal materials.This kind of material is recognized as unique renewable resource on the earth by international community at present.It is new using its reasonable development
Type fuel, for alleviating China Petroleum fuel pressure, reduces I. C. engine exhaust pollution, promotees for replacing fossil fuel if necessary
Reasonable utilize into biomass energy has great importance.
Vegetable oil has been widely studied as the application of bio-fuel.Have by the oil that certain methods are extracted and is fired with diesel oil
Expect close homologous physical characteristic, this makes them be possible to be used as bio-fuel.The vegetable oil of several types by with
Make potential alternative fuel, such as soybean, rapeseed, cotton and palm oil.Wherein soybean oil is extract from soya seeds
Vegetable oil in most high yield one kind.Soybean oil has oxidation stability as other vegetable oil and volatility relatively low
The advantages of.However, the high viscosity of soybean oil and density become its protrusion defect as fuel applications.Therefore, it is used for a long time big
Soya-bean oil will lead to Engine Durability problem, as the coking and fuel atomization of atomizer are bad and the piston of higher NOx emission
The adherency of ring.Due to its highly viscous limitation, soybean oil is made slow progress as the use of Alternative Diesel Fuel.
It is at present that biodiesel is prepared by transesterification processing using soybean oil as the main method of fuel.This kind of research master
If carrying out transesterification using the oleyl alcohol mixture of different proportion under different reaction conditions.Such as Likozar B etc.
Soybean oil and methanol, ethyl alcohol, isopropanol, butanol and the tert-butyl alcohol are carried out transesterification respectively and are prepared for biodiesel by people, are had
Body is referring to { Likozar B, Levec J.Transesterification of canola, palm, peanut, soybean
and sunflower oil with methanol,ethanol,isopropanol,butanol and tert-butanol
to biodiesel:modelling of chemical equilibrium,reaction kinetics and mass
transfer based on fatty acid composition.Appl Energy 2014；123:108–20.}
(Likozar B, Levec J. by ester exchange reaction prepare rapeseed oil, palm oil, peanut oil, soybean oil and sunflower oil with
The biodiesel of methanol, ethyl alcohol, isopropanol, butanol and the tert-butyl alcohol: the chemical balance formed based on fatty acid, reaction power are established
And Mass Transfer Model.Using the energy 2014；123:108–20.).But it will cause during carrying out transesterification certain
The energy loss of degree.
At the same time, Rakopoulos DC's et al. studies have shown that by adding alcohol in biodiesel fuel system
Class, can significantly improve the oxygen content of entire fuel system, so that the flue gas emission in diesel engine combustion is reduced, it is specific to join
See: { Rakopoulos DC, Rakopoulos CD, Giakoumis EG, Papagiannakis RG.Evaluating
Oxygenated Fuel’s Influence on Combustion and Emissions in Diesel Engines
Using a Two-Zone Combustion Model.Journal of Energy Engineering,2018,144(4):
04018046-. } (the two-region Rakopoulos DC, Rakopoulos CD, Giakoumis EG, Papagiannakis RG.
Combustion model evaluates influence of the oxygenated fuel to diesel combustion and discharge.Energy project magazine, 2018,144 (4):
04018046-.) but the above-mentioned oxygen-containing quantifier elimination of improvement fuel system is remained based on biodiesel fuel system.And in biology
The research that diesel raw material oil oxygen content improves aspect does not carry out.
Methanol oxygen content with higher, lower viscosity and density, and methanol production investment is low with production cost.Therefore
Methanol and soybean oil, which are established fuel combination system, to be relatively economical and can significantly improve lacking for soybean oil high viscosity and density
It falls into.But the characteristic of dissolving each other of methanol and soybean oil is not gratifying, simultaneously because the Cetane number of methanol is relatively low, by soybean oil
Cetane number can be reduced by mixing with methanol.And too low Cetane number is easy to cause diesel engine operating unstable, as engine is quick-fried
Combustion, starting difficulty, oil consumption are high, the problems such as.PODE can be very good to meet us as a kind of cetane number improver reduces combustion
Expect system density and viscosity, and improves the demand of system Cetane number.But it is directed to the research of the fuel combination containing PODE at present
It is also limited only to biodiesel and diesel oil field, does not there is the relevant report that it is applied to soybean oil fuel system also.
Soybean oil/methanol/PODE fuel combination relevant report is had not seen at present.
Summary of the invention
The purpose of the present invention is directly do not improve soybean oil high viscosity by transesterification and be not easy to dissolve each other with methanol
Defect.A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine, the fuel viscosity, density and hexadecane are provided
Value and conventional diesel fuel are more closely, be diesel engine novel alternative fuel.
A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine provided by the invention, by following volumes score
At being grouped as:
30%~40% soybean oil of methanol, 20%~35% PODE 35%~40%；
The soybean oil is level-one soybean oil；The methanol quality percent concentration is more than or equal to 99.5%；The PODE
For the mixture of PODE3-6.
Novel blended fuel provided by the invention suitable for diesel engine has the advantage that
1, PODE Cetane number with higher, Cetane number is 60 or so, and itself oxygen content is very high, on 47% left side
It is right.PODE can not only improve the whole Cetane number of fuel combination, and discharge can be effectively reduced in higher oxygen content.PODE conduct
Blender solves the problems, such as that soybean oil not exclusively dissolves each other with methanol.PODE has from a wealth of sources as renewable energy
Biomass background, its application can pressure brought by alleviating energy crisis and environmental problem to a certain extent, it is real
Existing renewable alternative fuel facilitates acquisition.
2, as renewable energy, use can be solved to a certain extent to fossil fuel for methanol and soybean oil mixed fuel
Resource is depended on unduly.Methanol can promote the air-fuel mixture process before kindling, low viscosity energy as the high volatile of alcohols
The soybean oil viscosity excessively high as fuel is enough reduced, and methanol itself is also oxygen-containing, advantageously reduces discharge.
Detailed description of the invention
Fig. 1 is that soybean oil/methanol/PODE of different proportion dissolves each other situation at 40 DEG C.
Specific embodiment
Following implementation is not intended to limit the scope of the invention for illustrating the present invention.
A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine provided by the invention, by following volumes score
At being grouped as:
30%~40% soybean oil of methanol, 20%~35% polymethoxy dimethyl ether (PODE) 35%~40%.
The soybean oil is level-one soybean oil.Preferably commercially available transgenosis level-one soybean oil, genetically engineered soybean oil is more
It is economical.
The methanol quality percent concentration is more than or equal to 99.5%.
The PODE is mixture, structural formula CH3O–(CH2O)n–CH3, wherein n is 3~6.
Preferred each component content are as follows: methanol 30%, soybean oil 35%, PODE 35%；Advantage is the body under this proportion
It is that overall viscosity meets conventional diesel fuel requirement, but global density is relatively high, passes the pressure wave in fuel injection processes
It passs faster, to improve energy engine input capability and power performance.
Preferred each component content are as follows: methanol 40%, soybean oil 20%, PODE 40%；Under this proportion, entire fuel
The Cetane number of system is higher.
Preferred each component content are as follows: methanol 35%, soybean oil 30%, PODE 35%；Under this proportion, entire fuel
The all data of system is average, and price relatively economical is reasonable.
The preparation method of the above-mentioned fuel of the present invention is the following steps are included: measure each ingredient according to volume proportion, first by methanol
It is added in soybean oil and forms the mixed liquor not exclusively to dissolve each other, PODE is added in mixed liquor is under stiring uniformly mixed later, i.e.,
It must reconcile fuel combination.
Kinematic viscosity by testing the novel blended fuel provided by the invention containing methanol is 2.43-4.26mm2/ s is full
Foot is suitable for the fuel viscosity range of conventional diesel engine.Novel blended fuel provided by the invention, soybean oil/methanol/PODE tool
There is good intersolubility, gained fuel combination stores no layering for a long time.
At 40 DEG C, when methanol mixing proportion is between 10%-90%, it cannot achieve soybean oil and dissolve each other with methanol.But from
Fig. 1, which can be seen that, is able to achieve dissolving each other for methanol and soybean oil systems by titrating PODE.
Obviously, soybean oil/respective ratio of methanol/PODE need to meet the principle dissolved each other.
Embodiment 1
Methanol 15L, soybean oil 17.5L, PODE 17.5L.
The soybean oil is commercially available transgenosis level-one soybean oil.The methanol quality percent concentration 99.5%.It is described
PODE is the mixture of PODE3-6.
Methanol: being first added in soybean oil and form the mixed liquor not exclusively to dissolve each other by configuration method, under stiring will later
PODE, which is added in mixed liquor, to be uniformly mixed to get reconciliation fuel combination.
Embodiment 2
Methanol 20L, soybean oil 10L, PODE 20L.
The soybean oil is commercially available transgenosis level-one soybean oil.The methanol quality percent concentration 99.6%.It is described
PODE is the mixture of PODE3-6.
Configuration method is the same as embodiment 1
Embodiment 3
Methanol 17.5L, soybean oil 15L, PODE 17.5L.
The soybean oil is commercially available transgenosis level-one soybean oil.The methanol quality percent concentration 99.5%.It is described
PODE is the mixture of PODE3-6.
Configuration method is the same as embodiment 1
The fuel combination of three kinds of different proportions in embodiment 1-3 is subjected to kinematic viscosity measurement, the results showed that the present invention mentions
For the novel blended fuel of confession under the basic, normal, high ratio of methanol, it is low that the additive amount of blender PODE shows intermediate high both ends
The viscosity of trend, fuel combination obtained shows the trend of monotone decreasing with the raising of methanol ratio and is significantly changed
It is kind.The viscosity of fuel system reduces amplitude and is up to 41.56% after blender PODE is added, and soybean oil ratio relatively
Under high system, what viscosity improved is become apparent.
Above embodiment be only preferred embodiments of the present invention will be described, not to the scope of the present invention into
Row limits, and without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical side of the invention
The all variations and modifications that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (5)
1. a kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine, it is characterised in that by following volumes score at
It is grouped as:
30%~40% 20%~35%PODE of soybean oil 35%~40% of methanol；
The soybean oil is level-one soybean oil；The methanol quality percent concentration is more than or equal to 99.5%；The PODE is
The mixture of PODE3-6.
2. soybean oil/methanol/PODE fuel combination according to claim 1 suitable for diesel engine, it is characterised in that: mixed
Fuel is closed by following volumes score at being grouped as: methanol 30%, soybean oil 35%, PODE 35%.
3. soybean oil/methanol/PODE fuel combination according to claim 1 suitable for diesel engine, it is characterised in that: mixed
Fuel is closed by following volumes score at being grouped as: methanol 40%, soybean oil 20%, PODE 40%.
4. soybean oil/methanol/PODE fuel combination according to claim 1 suitable for diesel engine, it is characterised in that: mixed
Fuel is closed by following volumes score at being grouped as: methanol 35%, soybean oil 30%, PODE 35%.
5. being suitable for soybean oil/methanol/PODE fuel combination of diesel engine described in -4 according to claim 1, it is characterised in that:
The soybean oil is commercially available transgenosis level-one soybean oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109026.2A CN109897678A (en) | 2019-02-03 | 2019-02-03 | A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109026.2A CN109897678A (en) | 2019-02-03 | 2019-02-03 | A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine |
Publications (1)
| Publication Number | Publication Date |
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| CN109897678A true CN109897678A (en) | 2019-06-18 |
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| CN201910109026.2A Pending CN109897678A (en) | 2019-02-03 | 2019-02-03 | A kind of soybean oil/methanol/PODE fuel combination suitable for diesel engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591773A (en) * | 2019-09-17 | 2019-12-20 | 天津大学 | Rapeseed oil/methanol/PODE mixed fuel suitable for diesel engine |
| CN110791329A (en) * | 2019-10-12 | 2020-02-14 | 天津大学 | Corn oil/methanol/PODE mixed fuel suitable for diesel engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381178A (en) * | 2016-11-30 | 2017-02-08 | 广西东奇能源技术有限公司 | Biological fuel with high calorific value |
| CN107513441A (en) * | 2017-09-27 | 2017-12-26 | 天津大学 | A kind of fuel combination suitable for diesel engine |
| CN108467751A (en) * | 2018-05-08 | 2018-08-31 | 天津大学 | It is a kind of suitable for the diesel oil of diesel engine, ethyl alcohol and tetrahydrofuran fuel combination |
-
2019
- 2019-02-03 CN CN201910109026.2A patent/CN109897678A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381178A (en) * | 2016-11-30 | 2017-02-08 | 广西东奇能源技术有限公司 | Biological fuel with high calorific value |
| CN107513441A (en) * | 2017-09-27 | 2017-12-26 | 天津大学 | A kind of fuel combination suitable for diesel engine |
| CN108467751A (en) * | 2018-05-08 | 2018-08-31 | 天津大学 | It is a kind of suitable for the diesel oil of diesel engine, ethyl alcohol and tetrahydrofuran fuel combination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591773A (en) * | 2019-09-17 | 2019-12-20 | 天津大学 | Rapeseed oil/methanol/PODE mixed fuel suitable for diesel engine |
| CN110791329A (en) * | 2019-10-12 | 2020-02-14 | 天津大学 | Corn oil/methanol/PODE mixed fuel suitable for diesel engine |
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