CN103952190A - Dimethoxymethane gasoline based on various non-national-standard gasoline components - Google Patents
Dimethoxymethane gasoline based on various non-national-standard gasoline components Download PDFInfo
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Abstract
The invention discloses dimethoxymethane gasoline based on various non-national-standard gasoline components. The dimethoxymethane gasoline comprises the following components by weight percent: 10-30% of vehicle fuel for blending combustion, 40-70% of naphtha and 10-30% of high-octane gasoline component, wherein the vehicle fuel for blending combustion comprises 88-95 parts of dimethoxymethane, 5-8 parts of tert-amyl methyl ether and 2-5 parts of functional additive; the functional additive comprises 50-65 parts of polyisobutylene succinimide, 30-40 parts of fatty acid and 5-10 parts of cerium oxide. By combining the dimethoxymethane compound of the fuel for blending combustion, naphtha and the high-octane gasoline component, the usage amount of the gasoline components is reduced, the cost is saved, the thermal utilization rate of the fuel oil is increased, emission of harmful gases in the vehicle exhaust is reduced, and the defects existing when dimethoxymethane independently serves as the fuel for blending combustion are overcome.
Description
Technical field
The present invention relates to gasoline, particularly a kind of Dimethoxymethane gasoline.
Background technology
In order to solve the discharge of obnoxious flavour in vehicle exhaust, the quality of improving automobile-used oil product is effective means at present.Up to now, improve automotive oils quality and mainly contain two kinds of approach, a kind of is to improve oil quality by oil refining, and a kind of is to mix by adding the quality that fuel burning or additive improve fuel oil.
In vehicle fuel, add that to mix fuel burning be significantly to improve fuel oil quality, reduce the most effective approach of noxious gas emission in tail gas.Mixing at present fuel burning, to use more be Aalcohols fuel and ethers fuel.Aalcohols fuel comprises methyl alcohol, ethanol etc., but Aalcohols fuel exists the shortcomings such as low-temperature stratification, chance water stratification, have a large amount of difficulties, so ethers fuel has obtained paying close attention to widely in transportation, storage, use.
Dme has taken the lead in opening the application beginning that ethers is mixed fuel burning, but due under normal temperature and pressure, be gaseous state run into be difficult to application bottleneck.Methylal(dimethoxymethane), another name methylene dme, formaldehyde dimethyl acetal, methylal etc., belong to ethers isomer, exists at normal temperatures and pressures with liquid state, because it exists without carbon-carbon bond and possessed the most efficient burnup characteristics in ether material with carbon-oxygen bond, possess good fuel oil and mix fuel burning character.
But the octane value of Methylal(dimethoxymethane) is lower than 90, and it is mixed fuel burning as motor spirit and uses the problem that does not reach motor spirit octane value standard that exists.The Chinese patent that is ZL 200810045958.7 such as the patent No. discloses a kind of Dimethoxymethane gasoline, it is comprised of Methylal(dimethoxymethane), benzene,toluene,xylene and gasoline, wherein Methylal(dimethoxymethane) is used as mixing fuel burning, saved gasoline.Although this patent is by adding benzene,toluene,xylene to solve the low problem of Methylal(dimethoxymethane) octane value, but, benzene is that a kind of to the virulent material of human body, motor spirit national standard has strict restriction to its content, requires its massfraction to be not more than 1.0%.Although aromatic hydrocarbons is the main contributions person of octane value, aromatic hydrocarbons also can increase the formation of engine aspirating system and combustion chamber deposit, and impels CO, HC quantity discharged to increase, and especially increase the discharge of benzene, so motor spirit national standard is also controlled to it.In a word, the material that benzene,toluene,xylene etc. add for restriction in oil quality, therefore can not get applying widely.
Summary of the invention
Object of the present invention is just for above-mentioned the deficiencies in the prior art, a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component is provided, it is by mixing the combination of fuel burning Methylal(dimethoxymethane) composition and petroleum naphtha, high octane gasoline component, reduced the usage quantity of gasoline component, cost-saving, and improved the heat utilization efficiency of fuel oil, reduced the discharge of obnoxious flavour in vehicle exhaust, and solved Methylal(dimethoxymethane) existing shortcoming when mixing fuel burning and use separately.
To achieve these goals, the technical solution used in the present invention is such:
A Dimethoxymethane gasoline based on multiple non-GB gasoline component, comprises that weight percent is 10%～30% automobile-used fuel burning, 40%～70% petroleum naphtha and 10%～30% the high octane gasoline component of mixing;
Wherein automobile-usedly mix the raw material that fuel burning comprises that following weight part forms: Methylal(dimethoxymethane) (DMM) 88-95 part, tert pentyl methyl ether (TAME) 5-8 part, functional additive 2-5 part; Described functional additive comprises the raw material that following weight part forms: polyisobutenyl succimide 50-65 part, lipid acid 30-40 part, cerium dioxide 5-10 part.
Above-mentioned petroleum naphtha is crude oil straight run, and its octane value is greater than 40.Crude oil is after time processing, and petroleum naphtha is topmost product, because time processing is still-process, belongs to physical refining process, so petroleum naphtha octane value, between 50 to 60, can not increase.
Above-mentioned high octane gasoline component is selected from aromizing gasoline component, isomerization gasoline component and gasoline alkylate component, and its octane value is greater than 90.Aromizing, isomerization and alkylation are the high-octane complete processings of carrying of existing maturation.
Further, in order to improve automobile-used quality product of mixing fuel burning, reduce adding of impurity, Methylal(dimethoxymethane) content >=99% in above-mentioned DMM, methanol content≤0.5%; Tert pentyl methyl ether content >=99% in above-mentioned TAME.
Median size≤0.8 μ the m of cerium dioxide in described functional additive, can guarantee that cerium oxide particles suspends in solvent to form suspension, thereby make the catalytic activity of cerium dioxide higher.
The inventor is through many experiments discovery, although Methylal(dimethoxymethane) has efficient burnup characteristics, it is mixed fuel burning use as gasoline and has following shortcoming: the octane value of (1) Methylal(dimethoxymethane), lower than 90, does not reach Fuel Petroleum octane value standard; (2) boiling point of Methylal(dimethoxymethane) is lower, causes its saturated vapor pressure higher, easily produces the normal fuel injection that vapour lock affects engine if directly use; (3) oxygen level of Methylal(dimethoxymethane) is higher, is prone to localized hyperthermia and increases the discharge of oxynitrides while causing burning.Therefore the inventor is by adding a certain proportion of properties-correcting agent and functional additive to solve the problems referred to above.
Tert pentyl methyl ether (TAME) has higher boiling point and octane value, and belong to ether material together with Methylal(dimethoxymethane), it adds into can solve Methylal(dimethoxymethane) boiling point in Methylal(dimethoxymethane) simultaneously low and cause problem that saturated vapor pressure is high and because octane value is compared with the low problem that occurs that anti-knocking property are poor as properties-correcting agent.But the add-on of TAME is also to have certain limitation, contriver determines that by many experiments the add-on of TAME is advisable at 5-8 weight part, especially take 5 weight parts as best, if the component of TAME is too low, octane value does not reach requirement, and the component of TAME is too high, because itself calorific value is lower than gasoline, the performance that can affect engine, meanwhile, also can increase the discharge of oxynitrides in automobile emission.
Consider that Methylal(dimethoxymethane) oxygen level is higher, the present invention adds cerium oxide particles therein simultaneously.Cerium dioxide and polyisobutenyl succimide and lipid acid form functional additive, cerium dioxide exists with suspended state in solvent, form suspension, thereby make it in the combustion processes of oil engine, by changing oxygen catalysis, form even burning and avoid localized hyperthermia, thereby the discharge of oxynitrides is declined.And polyisobutenyl succimide is the sanitising agent with stronger divergent function, lipid acid is anti-swelling agent, the two combination has the effect of dissolving power to carbon distribution, therefore can prevent in fuel transfer system that pipeline is because carbon distribution stops up adding of functional additive, and cerium dioxide also can reduce the quantity discharged of oxynitrides.
Petroleum naphtha is the basic component of gasoline concoction, is an indispensable part, and it has sulfur-bearing low, containing alkene, the advantage such as price is low, still, its octane value is low, need to be when gasoline be in harmonious proportion the high-octane component of proportioning.But high-octane component price, can not be used in a large number, for cost consideration, be limited in 10% to 30%.Mix fuel burning and belong to interpolation part, can improve the octane value of gasoline, increase the oxygen level of gasoline, change the combustion processes of gasoline in engine, make fuel combustion more abundant, and reduce the discharge of engine objectionable impurities, but, be not add The more the better, because the calorific value of its this life is high less than gasoline, a large amount of interpolation can increase automobile energy consumption, so be controlled at below 30%.
Compared with prior art, the invention has the advantages that:
1, to have overcome Methylal(dimethoxymethane) boiling point lower in the present invention, causes the difficulty that saturated vapor pressure is higher, and Dimethoxymethane gasoline of the present invention has qualified saturated vapor pressure, in gasoline engine, can normally work.
2, Dimethoxymethane gasoline of the present invention has stronger mutual solubility than alcohol gasoline (methanol gasoline, ethanol petrol), meets water separating resistance and anti-low ternperature separation process.
The octane value of the Dimethoxymethane gasoline that 3, the present invention prepares can reach the standard of GB gasoline, its power is than stronger with the GB gasoline of label, also still less, and in vehicle exhaust, the quantity discharged of carbon monoxide CO and hydrocarbon polymer HC also declines fuel consumption greatly.
4, to mix the main raw material Methylal(dimethoxymethane) production cost of fuel burning very low in the present invention, greatly improved the cost performance of Dimethoxymethane gasoline.
5,, because TAME can improve octane value, do not need to add and be intended to carry high-octane component, so the present invention has avoided benzene,toluene,xylene etc. to affect adding of oil quality material.
Embodiment
In order more clearly to understand object of the present invention, technical scheme and beneficial effect, below the present invention is described further, but protection scope of the present invention is not limited in following examples.
The raw material that following examples are used:
(1) DMM: purity is that more than 99% methanol content is lower than 0.5%;
(2) TAME: fuel-grade, purity is more than 99%;
(3) polyisobutenyl succimide: technical grade, purity is more than 99%;
(4) lipid acid: technical grade, purity is more than 99%;
(5) cerium dioxide powder: purity is more than 99%, median size≤0.8 μ m;
(6) petroleum naphtha: crude oil straight run, octane value is greater than 40.
Embodiment 1:
One, prepare functional additive: at normal temperatures and pressures, get polyisobutenyl succimide 5kg, lipid acid 3kg, cerium dioxide 0.5kg and add in tank body and stir and mix;
Two, prepare mixing solutions: under normal temperature and pressure, Methylal(dimethoxymethane) (DMM) 88kg, tert pentyl methyl ether (TAME) 5kg are added in tank body and naturally mix and obtain mixing solutions;
Three, fuel burning is mixed in preparation: in mixing solutions, add the functional additive of 2kg, be fully uniformly mixed and get final product;
Four, prepare Dimethoxymethane gasoline: get 10kg and mix fuel burning, 70kg petroleum naphtha, 20kg aromizing gasoline component and in tank body, mix and get final product.
Embodiment 2:
One, prepare functional additive: at normal temperatures and pressures, get polyisobutenyl succimide 6.5kg, lipid acid 4kg, cerium dioxide 1kg and add in tank body and stir and mix;
Two, prepare mixing solutions: under normal temperature and pressure, Methylal(dimethoxymethane) (DMM) 95kg, tert pentyl methyl ether (TAME) 8kg are added in tank body and naturally mix and obtain mixing solutions;
Three, fuel burning is mixed in preparation: in mixing solutions, add the functional additive of 5kg, be fully uniformly mixed and get final product;
Four, prepare Dimethoxymethane gasoline: get 20kg and mix fuel burning, 70kg petroleum naphtha, 10kg isomerization gasoline component and in tank body, mix and get final product.
Embodiment 3:
One, prepare functional additive: at normal temperatures and pressures, get polyisobutenyl succimide 5.5kg, lipid acid 3.5kg, cerium dioxide 1kg and add in tank body and stir and mix;
Two, prepare mixing solutions: under normal temperature and pressure, Methylal(dimethoxymethane) (DMM) 90kg, tert pentyl methyl ether (TAME) 5kg are added in tank body and naturally mix and obtain mixing solutions;
Three, fuel burning is mixed in preparation: in mixing solutions, add the functional additive of 5kg, be fully uniformly mixed and get final product;
Four, prepare Dimethoxymethane gasoline: get 30kg and mix fuel burning, 40kg petroleum naphtha, 30kg aromizing gasoline component and in tank body, mix and get final product.
The octane value that detects embodiment 1-3 is respectively:
Therefore, the Dimethoxymethane gasoline of embodiment 1 is equivalent to No. 90 gasoline of GB;
The Dimethoxymethane gasoline of embodiment 2 is equivalent to No. 93 gasoline of GB;
The Dimethoxymethane gasoline of embodiment 3 is equivalent to No. 97 gasoline of GB;
The Dimethoxymethane gasoline that embodiment 1-3 is made carries out the Performance Detection such as fuel oil consumption, pollutant emission with No. 90, No. 93, No. 97 gasoline of GB respectively, and concrete detection is seen for oneself the following stated:
One, car load dynamic performance comparison:
Two, fuel consumption comparison:
Three, the measurement that discharges pollutants:
To sum up, the quantity discharged of CO of the present invention has reduced by 50% left and right, and the quantity discharged of HC has reduced by 40% left and right.
Four, standard detection up to standard
(1) 90# GB gasoline standard:
(2) 93# GB gasoline standard
(3) 97# GB gasoline standard
Therefore, by above data, can be proved, the Dimethoxymethane gasoline that the present invention is based on multiple non-GB gasoline component can be with the equally normal use of GB gasoline, and during use, car load is working properly, without unusual phenomenon.Use Dimethoxymethane gasoline of the present invention, the dynamic performance of car load increases, and fuel consumption declines to some extent, and the pollutent CO of discharge and the content of HC also reduce to some extent.
Claims (7)
1. the Dimethoxymethane gasoline based on multiple non-GB gasoline component, is characterized in that: comprise that weight percent is 10%～30% automobile-used fuel burning, 40%～70% petroleum naphtha and 10%～30% the high octane gasoline component of mixing;
Wherein automobile-usedly mix the raw material that fuel burning comprises that following weight part forms: Methylal(dimethoxymethane) (DMM) 88-95 part, tert pentyl methyl ether (TAME) 5-8 part, functional additive 2-5 part; Described functional additive comprises the raw material that following weight part forms: polyisobutenyl succimide 50-65 part, lipid acid 30-40 part, cerium dioxide 5-10 part.
2. a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component according to claim 1, is characterized in that: Methylal(dimethoxymethane) content >=99% in described Methylal(dimethoxymethane), methanol content≤0.5%.
3. a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component according to claim 1, is characterized in that: tert pentyl methyl ether content >=99% in described tert pentyl methyl ether.
4. a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component according to claim 1, is characterized in that: the median size≤0.8 μ m of cerium dioxide in described functional additive.
5. according to a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component described in any one in claim 1 to 4, it is characterized in that: the octane value of described petroleum naphtha is greater than 40.
6. according to a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component described in any one in claim 1 to 4, it is characterized in that: described high octane gasoline component is selected from aromizing gasoline component, isomerization gasoline component and gasoline alkylate component.
7. a kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component according to claim 6, is characterized in that: the octane value of described high octane gasoline component is greater than 90.
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| CN201410176327.4A CN103952190B (en) | 2014-04-29 | 2014-04-29 | A kind of Dimethoxymethane gasoline based on multiple non-GB gasoline component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635192A (en) * | 2016-12-21 | 2017-05-10 | 沈阳化工大学 | Preparation method of alcohol-based fuel |
| CN112980521A (en) * | 2021-03-02 | 2021-06-18 | 苏州瑞孚恒标能源科技有限公司 | Methanol gasoline cleaning modifier and methanol gasoline cleaning modification method |
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| CN1737090A (en) * | 2005-09-01 | 2006-02-22 | 上海纳米技术及应用国家工程研究中心有限公司 | Nanometer fuel oil addition agent |
| CN101580747A (en) * | 2009-06-24 | 2009-11-18 | 天津汇荣石油有限公司 | Fuel composition capable of meeting motor vehicle pollutant emission limit |
| CN101665728A (en) * | 2008-09-01 | 2010-03-10 | 利胜强 | Dimethoxymethane gasoline |
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- 2014-04-29 CN CN201410176327.4A patent/CN103952190B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737090A (en) * | 2005-09-01 | 2006-02-22 | 上海纳米技术及应用国家工程研究中心有限公司 | Nanometer fuel oil addition agent |
| CN101665728A (en) * | 2008-09-01 | 2010-03-10 | 利胜强 | Dimethoxymethane gasoline |
| CN101580747A (en) * | 2009-06-24 | 2009-11-18 | 天津汇荣石油有限公司 | Fuel composition capable of meeting motor vehicle pollutant emission limit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635192A (en) * | 2016-12-21 | 2017-05-10 | 沈阳化工大学 | Preparation method of alcohol-based fuel |
| CN112980521A (en) * | 2021-03-02 | 2021-06-18 | 苏州瑞孚恒标能源科技有限公司 | Methanol gasoline cleaning modifier and methanol gasoline cleaning modification method |
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Granted publication date: 20160316 Termination date: 20190429 |