CN100357406C - Synthetic vehicular fuel and its preparation method - Google Patents
Synthetic vehicular fuel and its preparation method Download PDFInfo
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- CN100357406C CN100357406C CNB2006100008526A CN200610000852A CN100357406C CN 100357406 C CN100357406 C CN 100357406C CN B2006100008526 A CNB2006100008526 A CN B2006100008526A CN 200610000852 A CN200610000852 A CN 200610000852A CN 100357406 C CN100357406 C CN 100357406C
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Abstract
The present invention relates to synthetic vehicular fuel and a preparation method thereof, which belongs to the technical field of the fuel for petrol engines. The synthetic vehicular fuel has the components with the weight percentage of 20 to 30% of gasoline, 8 to 50% methanol, 8 to 47% of ethanol, 10 to 20% of dimethyl carbinol, 2 to 3.6% of normal propyl alcohol, 2 to 3.8% of sec-butyl alcohol and 5 to 10% of dimethyl ether. The present invention has the preparing method that a shearing emulsifying device in high speed is used for emulsifying and mixing the components, and thus, transparent synthetic vehicular fuel is prepared by mixing. The synthetic vehicular fuel greatly reduces the adding proportion of petroleum refining, and simultaneously provides excellent power and environmental protection performances. Thus, precious petroleum resource is saved, and the cost of the fuel gasoline is reduced. The petroleum refining gasoline of various grades can be used for the synthesis of the vehicular fuel gasoline, the vehicle fuel gasoline after the synthesis can be used for the energy source of various gasoline fuel engines, and the existing vehicle arrangement does not need to be changed.
Description
Technical field
The invention belongs to petrol engine and use the fuel technology field, relate in particular to less synthetic fuel for vehicle gasoline of a kind of refining of petroleum gasoline content and preparation method thereof.
Background technology
At present commercial cars are the oil product of refining of petroleum with fuel gasoline, and this has not only taken a large amount of valuable petroleum resources, contains multiple metallic compound and aromatic hydrocarbon substance in this fuel gasoline simultaneously, and the pollutent that the burning back produces causes very big harm to environment.Along with Economic development and requirement on environmental protection, how to reduce the consumption of natural oil resource, save energy and the quantity discharged that reduces Vehicular exhaust have become the major issue of growing interest.Domestic scientific research institution and enterprise once developed various fuel gasoline additives successively, the consumption that reduces gasoline in the mode of adding ethanol or methyl alcohol improves the label of gasoline simultaneously, but this is a cost to reduce combustion heat value, if the addition of low-alcohols material is too high in the gasoline, then reduction of the dynamic performance of fuel or engine can't be worked, gasoline and its mixture also demixing phenomenon can occur simultaneously, influence engine operation efficient.Methyl alcohol and gasoline have sizable difference on physical and chemical index on the other hand, as combustion heat value, vapour pressure, vapour density and to the injury of human body and the pollution aspect of environment, methyl alcohol does not meet the requirement of existing vehicle motor by the design of refining of petroleum gasoline performance yet.Methyl alcohol is the polar organism, and to the corrosion degree of aging height of engine component, dynamic performance is poor, uses the gasoline that adds methyl alcohol vehicle cold-starting difficulty and the phenomenon that vapour lock is arranged can occur.
Ethanol being added Study of Gasoline both at home and abroad in recent years wins initial success, but still will rely on a high proportion of gasoline at aspect of performances such as combustion heat value, vapor pressure, the capability of antidetonance, lean burning ability and gasification latent heats realizes, therefore the part by weight of synthetic gasoline PetroChina Company Limited. refining gasoline can not be lower than 60～80%, and vehicle is still very huge to the consumption as the oil of multiple industrial important source material.China is second-biggest-in-the-world oil importers at present, and the pollution problem that consumption how to save oil reduces Vehicular exhaust simultaneously is the important technological problems of present synthetic gasoline research.
Summary of the invention
The weight content that the invention provides a kind of refining of petroleum gasoline only is 20～30% synthetic fuel for vehicle gasoline, and a large amount of renewable low-carbon alcohol and ether synthesized-power excellent performance, burning back tail gas pollution degree are low by adding, low cost of manufacture, synthetic fuel for vehicle that stability is high.
The technical solution used in the present invention is as follows:
A kind of synthetic fuel for vehicle is characterized in that the weight percent of synthetic fuel for vehicle is composed as follows: gasoline 20～30%, methyl alcohol 8～50%, ethanol 8～47%, Virahol 10～20%, n-propyl alcohol 2～3.6%, sec-butyl alcohol 2～3.8%, dme 5～10%.
Described gasoline is the fuel gasoline of the various trades mark of refining of petroleum.
The preparation method of this synthetic fuel for vehicle is characterized in that preparation process is as follows:
(1) under normal temperature, airtight condition, methyl alcohol and ethanol mixed and be incorporated in emulsification under the high speed shear condition, obtain methyl alcohol and alcoholic acid uniform mixing liquid A;
(2) add Virahol, n-propyl alcohol and sec-butyl alcohol in mixing liquid A, the high speed shear mixing and emulsifying obtains water white mixing liquid B;
(3) emulsification of adding dme high speed shear is even in mixing liquid B, obtains transparent mixing liquid C;
(4) add the emulsification of gasoline high speed shear in transparent mixing liquid C, the mixing liquid that obtains is synthetic fuel for vehicle.
The concrete preparation process of this synthetic fuel for vehicle is as follows:
(1) under normal temperature, the airtight condition methyl alcohol and ethanol being mixed under the high speed shear condition that is incorporated in more than 2800 rev/mins emulsification 10～15 minutes, obtains methyl alcohol and alcoholic acid water white transparency mixing liquid A;
(2) mixing liquid A adds Virahol, n-propyl alcohol and sec-butyl alcohol, and emulsification is 10～15 minutes under the high speed shear condition more than 2800 rev/mins, obtains water white mixing liquid B;
(3) add dme in mixing liquid B, emulsification is 5～8 minutes under the high speed shear condition more than 2800 rev/mins, obtains transparent mixing liquid C;
(4) in transparent mixing liquid C, add gasoline, under the high speed shear condition more than 2800 rev/mins emulsification even, the transparent mixing liquid that obtains is synthetic fuel for vehicle.
Gasoline described in the above-mentioned preparation method is the fuel gasoline of the various trades mark of refining of petroleum, does not preferably add the white gasoline of methyl tertiary butyl ether additive.
Each component of all the other of this synthetic fuel for vehicle is commercially available Chemicals, has the abundant and reproducible advantage of raw material resources, because the gasoline of refining of petroleum belongs to the hydrocarbon polymer of rich carbon oxygen deprivation, the content of carbon can account for 80% of gasoline weight ratio, hydrogen also only accounts for about 13%, and the situation of the alcohols of the poor carbon of oxygen enrichment is just in time opposite, can be complementary.But because the two one belong to the low-pole material, another belongs to strong polar material, and its consistency is very poor, and the alcohols that particularly contains minor amount of water mixes afterwards easy layering with the gasoline hydro carbons.Because water is stronger than the polar degree of alcohols, so general alcohols inevitably can contain the water of trace, this also is that gasoline and alcohols add the major cause that component can not be dissolved each other on the other hand.For solve gasoline with add component alcohols and ethers melt problem mutually, the present inventor utilize polar group hydroxyl-OH and non-polar group-CH
2CH (CH
3)
2Affine principle by adjusting the proportion relation of gasoline and each low-carbon alcohol and ether, makes gasoline and each add component and well dissolves each other.Vehicle fuel gasoline after the present invention simultaneously is synthetic all apparently higher than the refining of petroleum gasoline of routine, detects the exhaust emissions of engine, CO wherein, HC, CO under idling on some technical parameters such as dynamic performance, oil consumption test
2And NO
XAll obviously descend than refining of petroleum gasoline.
The preparation technology of synthetic fuel for vehicle of the present invention is simple, only need conventional high speed shear emulsifying device to finish, general high speed shear speed is more than 2800 rev/mins, under the effect of high shear force, the particle diameter of the emulsified particle of each component of synthetic fuel for vehicle can reach 0.05 micron, and liquid mixture is a transparence, its stabilized with mixture raising, under the effect of high speed shear power, need not add emulsifying agent each component is fully dissolved each other simultaneously.All can add the octane value that methyl tertiary butyl ether improves gasoline in the tradition refining of petroleum gasoline, because the effect of other component of adding in this synthetic fuel for vehicle gasoline also can be played the effect that improves the fuel gasoline octane value, so need in gasoline component, not add expensive methyl tertiary butyl ether component again.
Beneficial effect of the present invention is, this synthetic fuel for vehicle is providing excellent dynamic performance and environmental-protecting performance a large amount of when reducing refining of petroleum gasoline adding proportions, and the petroleum resources of saves valuable have reduced the cost of fuel gasoline.The refining of petroleum gasoline of the various trades mark all can be used for the synthetic of this vehicle fuel gasoline, and the vehicle fuel gasoline after synthesizing can be used for the energy of various gasoline engines, does not need existing vehicle arrangement is done any change.
Embodiment
Embodiment 1 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 90
#Gasoline 20%, methyl alcohol 46%, ethanol 9%, Virahol 15%, n-propyl alcohol 3%, sec-butyl alcohol 2%, dme 5%.
Prepare this synthetic fuel for vehicle gasoline by following preparation method:
(1) under normal temperature, airtight condition, 46% methyl alcohol and 9% ethanol are mixed and carry out emulsification, obtain the transparent mixing liquid A of methyl alcohol and alcoholic acid with the high speed shear emulsifying device;
(2) add 15% Virahol, 3% n-propyl alcohol and 2% sec-butyl alcohol in mixing liquid A, high speed shear emulsification obtains water white mixing liquid B;
(3) in mixing liquid B, add 5% dme high speed shear emulsification, obtain transparent mixing liquid C;
(4) in transparent mixing liquid C, add 20% 90
#The emulsification of gasoline high speed shear, the transparent mixing liquid that obtains is synthetic fuel for vehicle.Every achievement data that this synthetic fuel for vehicle gasoline detects through product quality supervision and inspection center, Yunnan Province sees Table 1.
Every detection index of table 1 synthetic fuel for vehicle gasoline
| Test item | Unit | Standard-required | Detected result | Individual event is judged | |
| Research octane number (RON) (RON) | - | Be not less than 90 | 94 | Qualified | |
| Boiling range | 10% vaporization temperature | ℃ | Be not higher than 70 | 52 | Qualified |
| 50% vaporization temperature | ℃ | Be not higher than 120 | 74 | Qualified | |
| 90% vaporization temperature | ℃ | Be not higher than 190 | 155 | Qualified | |
| Final boiling point | ℃ | Be not higher than 205 | 189 | Qualified | |
| Residual quantity | C/0(v/v) | Be not more than 2 | 1 | Qualified | |
| Existent gum | Mg/100mol | Be not more than 5 | 2 | Qualified | |
| Mechanical impurity and moisture | - | Do not have | Do not have | Qualified | |
The octane value of this synthetic fuel for vehicle gasoline is 90 than the trade mark that adds as can be seen from the above table
#The gasoline height, every detection index of synthetic fuel for vehicle gasoline all meets every standard of fuel gasoline simultaneously.
The applicant has carried out exhaust contaminant to this synthetic fuel for vehicle gasoline and has carried out contrast test, use three of normal Xiali, Jetta, Santana's gasoline car, to the measuring of normal use, use commercially available 90 by GB/T3845-93 " the measurement idling method of gasoline car exhaust contaminant "
#Refining of petroleum gasoline is tested exhaust contaminant (CO, HC, the CO of former car
2, NO) concentration, use this synthetic fuel for vehicle gasoline then, operation is tested the exhaust contaminant of this car behind the 180km again.Detect and Analytical equipment employing FGA-4100 exhaust gas analyzer, detect site environment and meteorological conditions: barometric point 81.0kPa, relative humidity 57%, 26 ℃ of temperature are fine.Detected result and judgement criteria see Table 2.
Table 2 Vehicular exhaust pollutant emission detection architecture and judgement criteria
| Sequence number | 1 | 2 | 3 | Standard value | |
| Vehicle | Xiali | Jetta | Santana | ||
| License number | Cloud AN-9172 | Cloud AF-1629 | Cloud AF-1628 | ||
| Rotating speed | 880 | 880 | 870 | ||
| CO (％) | Before the adding | 5.53 | 0.38 | 0.63 | 4.5 |
| After adding operation | 2.96 | 0 | 0 | ||
| Purification rate | 46.5％ | 100％ | 100％ | ||
| HC (ppm) | Before the adding | 2215 | 148 | 129 | 900-1200 |
| After adding operation | 0 | 0 | 0 | ||
| Purification rate | 100％ | 100％ | 100％ | ||
| CO2 (％) | Before the adding | 7.23 | 13.7 | 13.3 | Do not have |
| After adding operation | 2.81 | 11.83 | 11.43 | ||
| Purification rate | 61.1％ | 13.6％ | 14.1％％ | ||
| NO (ppm) | Before the adding | 38.33 | 47.67 | 56 | Do not have |
| After adding operation | 31 | 12 | 12 | ||
| Purification rate | 19.1％ | 74.8％ | 78.6％ | ||
*Annotate: the Xiali car is carried out threshold limit value (that produces in the past July 1 nineteen ninety-five is using car), and other car is carried out minimum limit value.
Operating condition method pollutant emission and fuel-economy property testing be the results are shown in Table 3 and table 4.
Operating condition method pollutant emission of table 3 Jetta electricity spray car and fuel-economy test result
| Project | HC (g/km) | CO (g/km) | NOx (g/km) | Oil consumption (L/100km) | |
| Test value | 90 #Gasoline | 0.14 | 3.06 | 0.62 | 8.41 |
| After adding synthetic motor spirit and exercising 50 kilometers | 0.13 | 2.24 | 0.71 | 8.18 | |
| Velocity of variation (%) | 7.1 | 26.8 | -14.5 | 2.7 | |
Carburettor car operating condition method pollutant emission of table 4 Santana and fuel economy test result
| Project | HC (g/km) | CO (g/km) | NOx (g/km) | Oil consumption (L/100km) | |
| Test value | 90 #Gasoline | 0.95 | 12.13 | 1.14 | 10.78 |
| After adding synthetic motor spirit and exercising 50 kilometers | 0.90 | 9.83 | 1.16 | 10.55 | |
| Velocity of variation (%) | 5.3 | 19.0 | -1.8 | 2.1 | |
Use as can be seen under the idling method test case by table 2,3,4, the tail gas discharging pollutant of this synthetic fuel for vehicle gasoline vehicle is starkly lower than existing refining of petroleum gasoline, and the environmental-protecting performance of this synthetic fuel for vehicle gasoline obviously is better than existing refining of petroleum gasoline.Under the applying working condition method test case, use the quantity discharged of CO and HC in the pollutant emission of this synthol gasoline vehicle that in various degree reduction is all arranged, just the quantity discharged of NOx slightly raises.Use the fuel consumption per hundred kilometers of the vehicle of this synthol gasoline to reduce, have good economic benefit.This synthetic fuel for vehicle has good adaptability simultaneously, and existing vehicle uses this synthetic fuel for vehicle to need not vehicle is done any change.
The applicant is also to the dynamic performance of this synthetic fuel for vehicle gasoline and existing 90
#Gasoline has carried out contrast test, and its test result sees Table 5.
Table 5 synthetic fuel for vehicle gasoline and 90
#The dynamic performance test result of gasoline
| Project | The most high-grade (5 grades) pick-up period | Inferior top grade (4 grades) pick-up period | |
| Testing mean (second) | 90 #Gasoline | 21.53 | 18.93 |
| After adding synthetic motor spirit and exercising 50 kilometers | 21.13 | 18.45 | |
| Velocity of variation (%) | 1.9 | 2.5 | |
*Annotate: velocity of variation (%)=[(90
#Gasoline data-fuel oil data of the present invention) ÷ 90
#The gasoline data] * 100%
Embodiment 2 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 93
#Gasoline 20%, methyl alcohol 25%, ethanol 25%, Virahol 20%, n-propyl alcohol 3%, sec-butyl alcohol 2%, dme 5%.
Prepare this synthetic fuel for vehicle gasoline by following preparation method:
Under normal temperature, the airtight condition with 25% methyl alcohol and 25% ethanol mixes and with the shear agitation speed of high speed shear emulsifying device at 2800 rev/mins under emulsification 15 minutes, obtain methyl alcohol and alcoholic acid water white transparency mixing liquid A;
(2) mixing liquid A adds 20% Virahol, 3% n-propyl alcohol and 2% sec-butyl alcohol, and emulsification is 15 minutes under 3000 rev/mins velocity of shear, obtains water white mixing liquid B;
(3) add 5% dme in mixing liquid B, emulsification is 5 minutes under above-mentioned velocity of shear, obtains transparent mixing liquid C;
(4) in transparent mixing liquid C, add 20% 93
#The emulsification of gasoline high speed shear, the transparent mixing liquid that obtains is synthetic fuel for vehicle, and this synthetic fuel for vehicle can be equivalent to 97
#Every performance index of gasoline.
Embodiment 3 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 70
#Gasoline 20%, methyl alcohol 8%, ethanol 47%, Virahol 1 5%, n-propyl alcohol 3%, sec-butyl alcohol 2%, dme 5%.
Prepare this synthetic fuel for vehicle gasoline by following preparation method:
Under normal temperature, the airtight condition with 8% methyl alcohol and 47% ethanol mixes and with the shear agitation speed of high speed shear emulsifying device at 2800 rev/mins under emulsification 10 minutes, obtain methyl alcohol and alcoholic acid water white transparency mixing liquid A;
(2) mixing liquid A adds 15% Virahol, 3% n-propyl alcohol and 2% sec-butyl alcohol, and emulsification under identical velocity of shear obtains water white mixing liquid B;
(3) add 5% dme in mixing liquid B, emulsification is 8 minutes under above-mentioned velocity of shear, obtains transparent mixing liquid C;
(4) in transparent mixing liquid C, add 20% 70
#Gasoline emulsification under above-mentioned velocity of shear, the transparent mixing liquid that obtains is synthetic fuel for vehicle, and this synthetic fuel for vehicle is better than 70
#Every performance index of gasoline.
Embodiment 4 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 90
#Gasoline 30%, methyl alcohol 24.6%, ethanol 8%, Virahol 20%, n-propyl alcohol 3.6%, sec-butyl alcohol 3.8%, dme 5%.
The preparation method of this synthetic fuel for vehicle is with embodiment 1.
Embodiment 5 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 95
#Gasoline 20%, methyl alcohol 50%, ethanol 9.2%, Virahol 10%, n-propyl alcohol 2%, sec-butyl alcohol 3.8%, dme 5%.
The preparation method of this synthetic fuel for vehicle is with embodiment 2.
Embodiment 6 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 97
#Gasoline 25%, methyl alcohol 30%, ethanol 15%, Virahol 15%, n-propyl alcohol 2%, sec-butyl alcohol 3%, dme 10%.
The preparation method of this synthetic fuel for vehicle is with embodiment 3.
Embodiment 7 gets the raw material of synthetic fuel for vehicle by following component and weight percent: 90
#Gasoline 30%, methyl alcohol 10%, ethanol 30%, Virahol 16.4%, n-propyl alcohol 3.6%, sec-butyl alcohol 2%, dme 8%.
The preparation method of this synthetic fuel for vehicle is with embodiment 2.
Claims (6)
1. a synthetic fuel for vehicle is characterized in that the weight percent of synthetic fuel for vehicle is composed as follows: gasoline 20～30%, methyl alcohol 8～50%, ethanol 8～47%, Virahol 10～20%, n-propyl alcohol 2～3.6%, sec-butyl alcohol 2～3.8%, dme 5～10%.
2. synthetic fuel for vehicle according to claim 1 is characterized in that described gasoline is the fuel gasoline of the various trades mark of refining of petroleum.
3. the preparation method of the described synthetic fuel for vehicle of claim 1 is characterized in that preparation process is as follows:
(1) under normal temperature, airtight condition, methyl alcohol and ethanol mixed and be incorporated in emulsification under the high speed shear condition, obtain methyl alcohol and alcoholic acid uniform mixing liquid A;
(2) add Virahol, n-propyl alcohol and sec-butyl alcohol in mixing liquid A, the high speed shear mixing and emulsifying obtains water white mixing liquid B;
(3) emulsification of adding dme high speed shear is even in mixing liquid B, obtains transparent mixing liquid C;
(4) add the emulsification of gasoline high speed shear in transparent mixing liquid C, the mixing liquid that obtains is synthetic fuel for vehicle.
4. the preparation method of synthetic fuel for vehicle according to claim 3 is characterized in that concrete preparation process is as follows:
(1) under normal temperature, the airtight condition methyl alcohol and ethanol being mixed under the high speed shear condition that is incorporated in more than 2800 rev/mins emulsification 10～15 minutes, obtains methyl alcohol and alcoholic acid water white transparency mixing liquid A;
(2) mixing liquid A adds Virahol, n-propyl alcohol and sec-butyl alcohol, and emulsification is 10～15 minutes under the high speed shear condition more than 2800 rev/mins, obtains water white mixing liquid B;
(3) add dme in mixing liquid B, emulsification is 5～8 minutes under the high speed shear condition more than 2800 rev/mins, obtains transparent mixing liquid C;
(4) in transparent mixing liquid C, add gasoline, under the high speed shear condition more than 2800 rev/mins emulsification even, the transparent mixing liquid that obtains is synthetic fuel for vehicle.
5,, it is characterized in that described gasoline is the fuel gasoline of the various trades mark of refining of petroleum according to the preparation method of claim 3 or 4 described synthetic fuel for vehicle.
6,, it is characterized in that described gasoline is the white gasoline that does not add the methyl tertiary butyl ether additive according to the preparation method of claim 3 or 4 described synthetic fuel for vehicle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100008526A CN100357406C (en) | 2006-01-13 | 2006-01-13 | Synthetic vehicular fuel and its preparation method |
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|---|---|---|---|
| CNB2006100008526A CN100357406C (en) | 2006-01-13 | 2006-01-13 | Synthetic vehicular fuel and its preparation method |
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| CN100357406C true CN100357406C (en) | 2007-12-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946320A (en) * | 2015-05-29 | 2015-09-30 | 黑龙江工程学院 | Ethanol-sec-butyl alcohol-gasoline mixed fuel and preparation method thereof |
| CN106753600A (en) * | 2016-11-22 | 2017-05-31 | 戴丽莉 | A kind of high cleaning ether-base fuel |
| CN106675673A (en) * | 2016-12-20 | 2017-05-17 | 戴丽莉 | Novel ether-base gasoline |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5338321A (en) * | 1992-01-31 | 1994-08-16 | Mitsubishi Oil Co., Ltd. | Gasoline-blended methanol fuel for internal combustion engines |
| CN1583977A (en) * | 2004-06-11 | 2005-02-23 | 黑龙江建业燃料有限责任公司 | Clean alcohol fuel |
-
2006
- 2006-01-13 CN CNB2006100008526A patent/CN100357406C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5338321A (en) * | 1992-01-31 | 1994-08-16 | Mitsubishi Oil Co., Ltd. | Gasoline-blended methanol fuel for internal combustion engines |
| CN1583977A (en) * | 2004-06-11 | 2005-02-23 | 黑龙江建业燃料有限责任公司 | Clean alcohol fuel |
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