CN105777985A - Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive - Google Patents
Preparation method of diesel oil additive, prepared diesel oil additive and application of diesel oil additive Download PDFInfo
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- CN105777985A CN105777985A CN201610031427.7A CN201610031427A CN105777985A CN 105777985 A CN105777985 A CN 105777985A CN 201610031427 A CN201610031427 A CN 201610031427A CN 105777985 A CN105777985 A CN 105777985A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/04—Anhydrides, e.g. cyclic anhydrides
- C08F222/06—Maleic anhydride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/192—Macromolecular compounds
- C10L1/195—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C10L1/196—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and a carboxyl group or salts, anhydrides or esters thereof homo- or copolymers of compounds having one or more unsaturated aliphatic radicals each having one carbon bond to carbon double bond, and at least one being terminated by a carboxyl radical or of salts, anhydrides or esters thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
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Abstract
The invention discloses a preparation method of a diesel oil additive, the prepared diesel oil additive and an application of the diesel oil additive; the diesel oil additive is prepared by mixing maleic anhydride, acrylic acid ester, methyl oleate, an initiator and an organic solvent, then carrying out a polymerization reaction to obtain a maleic anhydride-acrylic acid ester-methyl oleate ternary copolymer as the diesel oil additive, wherein the molar ratio of the maleic anhydride to the acrylic acid ester to the methyl oleate is 1 to (0.5-3) to (0.5-3), the acrylic acid ester is obtained by esterification of acrylic acid and C12-C18 alcohol. The diesel oil additive is added to vehicle diesel oil, not only can play a role in reducing the diesel oil cold filter plugging point and improving the low-temperature flowing properties of the diesel oil, but also can improve the antiwear lubricating properties of low-sulfur diesel oil.
Description
Technical field
The present invention relates to petrochemical industry, in particular it relates to the preparation method of a kind of diesel fuel additives and prepared
Diesel fuel additives and application.
Background technology
Along with the raising day by day of environmental requirement, the exhaust emission standard of diesel vehicle also gradually steps up, sulfur content in diesel oil
Controlling the harshest, some countries have been carried out Eu III standard (sulfur content≤300 μ g/g) at present, the release of diesel car, more
The use making low-sulfur diesel-oil is imperative.In order to meet the requirement of environmental protection, the world fuel committee is up-to-date automobile-used promulgate
In cleaning fuel standards, the requirement to sulfur content is more strict, and in the III, the IV class, limiting diesel oil sulfur content must be the least
In 30 × 10-6Ppm and be " zero " (< 5 × 10-6～10 × 10-6ppm).Produce high-level low-sulfur derv fuel, it is necessary to right
Catalytic cracking diesel oil carries out hydrofinishing, removing major part sulfide and condensed-nuclei aromatics, but also takes off while this production process
Except having, the sulfur-bearing of abrasion resistance is nitrogenous waits compound, causes the abrasion resistance of low-sulfur diesel-oil to be difficult to reach diesel oil standard.Moral
The research of LUCAS company of state shows, the refined diesel oil of sulfur content≤0.05% can make the fuel pump of Tape dispensers abrasion occur；1991
After year Sweden environment-friendly type I class, II class derv fuel are put on market, shortly find that the report loss rate of Diesel engine is multiplied；
The problem that America & Canada also occurs causing fuel pump to wear and tear owing to refined diesel oil lubricity is not enough.To this end, start mechanism
Making business to propose the lubricity of derv fuel and clearly require, in world's fuel oil specification, I, II, III class diesel oil all defines
Lubricity test (high-frequency reciprocating lubricity test HFRR grinding defect diameter is not more than 400 μm).And China's GB/T19147-2003 " car
With diesel oil " standard regulation HFRR grinding defect diameter is not more than 460 μm.
In the composition of China's derv fuel, catalytic cracking diesel oil component accounts for overwhelming majority ratio.But catalytic cracking diesel oil group
Dividing sulfur content high, color is unstable, does not meets the requirement of national standard and environmental protection, and oil refining enterprise typically carries out hydrogenation essence to it
System.Equally, after deep desulfuration, the greasy property of diesel oil is greatly reduced.On the other hand, due to diesel hydro-pour-reducing requirement
The degree of depth that depth ratio refines is deep, and general refinery all solves diesel oil by the method for pour-point depressant allotment again only with appropriateness hydro dewaxing
Mobility.Most economical, the effective measures that improve deep refined diesel oil greasy property at present are to use diesel antiwear additive (also referred to as bavin
Oil lubricity modifier), but the use of antiwear additive simply improves diesel quality, does not improve the added value of diesel oil, does not also have
There is any economic benefit of generation；Meanwhile, the diesel oil fall filtering agent (fall cold filter plugging point additive) being widely used at present is though having higher
Added value, but undesirable owing to experiencing performance, especially for the finished diesel fuel of high wax content oil, experience performance the most worse.Cause
This exploitation one can improve diesel quality, and the composite diesel additive can increased economic efficiency again has great importance.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of diesel fuel additives and prepared diesel fuel additives and application,
The diesel fuel additives of the present invention adds in derv fuel, can not only play the effect reducing cold filter point of diesel oil, improve diesel oil
Low temperature flowability, and the anti-wear lubricating performance of low-sulfur diesel-oil can be improved.
To achieve these goals, first aspect present invention: provide the preparation method of a kind of diesel fuel additives, its feature exists
In, the method includes: carry out polymerization after maleic anhydride, acrylate, methyl oleate, initiator and organic solvent being mixed anti-
Should, obtain maleic acid anhydride-propenoic acid ester-methyl oleate terpolymer as diesel fuel additives；Wherein, described maleic anhydride,
The mol ratio of acrylate and methyl oleate is 1:(0.5-3): (0.5-3), described acrylate is acrylic acid and C12-C18's
Alcohol esterification gained.
Preferably, the addition of described initiator is described maleic anhydride, acrylate and methyl oleate gross mass
0.5-1.5 mass %, the addition of described organic solvent is described maleic anhydride, acrylate and methyl oleate gross mass
45-55 mass %.
Preferably, described initiator is benzoyl peroxide or azo-bis-isobutyl cyanide, and described organic solvent is selected from diformazan
At least one in benzene, toluene and N,N-dimethylformamide.
Preferably, the condition of described polymerisation is: temperature is 110-120 DEG C, and the time is 4-6 hour.
Preferably, the preparation method of described acrylate includes: by acrylic acid and alcohol in catalyst and the existence of polymerization inhibitor
Under carry out the first esterification, obtain acrylate；Wherein, described alcohol is C12-C18Alcohol, described acrylic acid and alcohol mole
Ratio is 1:(0.5-1)；Described catalyst is at least one in p-methyl benzenesulfonic acid, thionyl chloride and sulfuric acid, described catalysis
The addition of agent is 0.4-0.6 mass % of the gross mass of described acrylic acid and alcohol；Described polymerization inhibitor is selected from hydroquinones, chlorine
Change at least one in cuprous, copper naphthenate and tert-butyl catechol, the addition of described polymerization inhibitor be described acrylic acid and
0.5-1.5 mass % of the gross mass of alcohol；The temperature of described first esterification is 115-135 DEG C, and the time is 0.5-1 hour.
Preferably, the preparation method of described methyl oleate includes: oleic acid and methyl alcohol carry out in the presence of the concentrated sulfuric acid
Class reaction, obtains methyl oleate；Wherein, the mol ratio of described oleic acid and methyl alcohol is (2-2.5): 1, described concentrated sulfuric acid quality
For 5-7 mass % of described oleic acid quality, the mass fraction of the described concentrated sulfuric acid is 70-98 mass %；Described second esterification
Temperature be 135-150 DEG C, the time is 1.5-2 hour.
Second aspect present invention: prepared by the preparation method of the diesel fuel additives that offer first aspect present invention is provided
Diesel fuel additives.
Third aspect present invention: diesel fuel additives the answering in derv fuel that second aspect present invention is provided is provided
With.
Preferably, in described derv fuel, the addition of described diesel fuel additives is the micro-gram gram of 500-1000.
Compared with prior art, the diesel oil that the diesel fuel additives preparation method of the present invention and preparation method of the present invention are provided
Additive has the advantage that
Low temperature flowability and the abrasion resistance of diesel oil are the most critically important, but people are the most often separately added into low temperature stream
Flowability improver and antiwear additive, to be respectively increased above-mentioned performance, not only bring inconvenience to production, and cost are the most higher.This
The diesel fuel additives not only low cost of invention, and low temperature flowability and the abrasion resistance of diesel oil can be improved, at bavin simultaneously
Addition manner in oil production process is more flexible, such as, can add online or interior tune in diesel fuel tank.The present invention provides
Diesel fuel additives can reduce the cold filter plugging point more than 15 DEG C of diesel oil, has the good effect improving research of cold flow properties of diesel fuel,
And analyze method according to four beads and be measured, the diesel fuel additives of the present invention can be greatly lowered average polishing scratch, thus
Reduce the abrasion of diesel engine, increase power and the life-span of diesel engine.The flash-point of existing Copolymer As Diesel Fuel Cold Flow Improver is about 30
DEG C, belonging to one-level dangerous material, the flash-point of the diesel fuel additives that the present invention provides, up to 65 DEG C, can not only reach national regulation
Enterprise's storage standard (more than 55 DEG C), and this flash-point is also above other diesel fuel additives both at home and abroad.The diesel oil that the present invention provides
All other performances of diesel oil, while improving research of cold flow properties of diesel fuel and abrasion resistance, are not caused disadvantageous by additive
Impact.It addition, the preparation method of the diesel fuel additives of present invention offer is simple, it is easy to industrialization, produce without the three wastes, to environment shadow
Ring little.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
First aspect present invention: provide the preparation method of a kind of diesel fuel additives, it is characterised in that the method includes: will
Carry out polymerisation after maleic anhydride, acrylate, methyl oleate, initiator and organic solvent mixing, obtain maleic anhydride-the third
Olefin(e) acid ester-methyl oleate terpolymer is as diesel fuel additives；Wherein, described maleic anhydride, acrylate and methyl oleate
Mol ratio be 1:(0.5-3): (0.5-3), preferably 1:(1.5-2.5): (1.5-2.5), described acrylate is acrylic acid
With C12-C18Alcohol esterification gained.
According to the first aspect of the invention, polymerisation is radical reaction, and can add is heated is readily decomposed to freedom
The compound of base (primary group of free radicals), i.e. radical initiator, is also called for short initiator, with initiation reaction.Such as, described initiator
Can be benzoyl peroxide or azo-bis-isobutyl cyanide, the addition of described initiator can be described maleic anhydride, acrylic acid
0.5-1.5 mass % of ester and methyl oleate gross mass.It addition, polymerisation is carried out the most in organic solvent, described organic
Solvent can be at least one in dimethylbenzene, toluene and DMF, the addition of described organic solvent
It can be 45-55 mass % of described maleic anhydride, acrylate and methyl oleate gross mass.
According to the first aspect of the invention, described polymerisation is by the course of reaction of monomer synthetic polymer, embodies
Learning equation can be:
Wherein n can be 12-18, and a, b and c can be natural numbers, and its reaction condition can be: temperature is 90-150 DEG C, preferably
For 110-120 DEG C, the time is 2-10 hour, preferably 4-6 hour, is more preferably passed through nitrogen in course of reaction and protects.
According to the first aspect of the invention, acrylate is the product that acrylic acid and alcohol carry out esterification, can be third
Olefin(e) acid and C12-C18Alcohol esterification gained, its concrete preparation method may include that acrylic acid and alcohol at catalyst and polymerization inhibitor
In the presence of carry out the first esterification, obtain acrylate；Wherein, described alcohol can be C12-C18Alcohol, described acrylic acid
It is preferably 1:(0.5-1) with the mol ratio of alcohol；Described catalyst can be in p-methyl benzenesulfonic acid, thionyl chloride and sulfuric acid
At least one, the addition of described catalyst can be 0.4-0.6 mass % of the gross mass of described acrylic acid and alcohol；Described resistance
Poly-agent can be at least one in hydroquinones, stannous chloride, copper naphthenate and tert-butyl catechol, described inhibition
The addition of agent can be 0.5-1.5 mass % of the gross mass of described acrylic acid and alcohol；The temperature of described first esterification
Can be 115-135 DEG C, the time can be 0.5-1 hour.It addition, the first esterification is preferably added to water entrainer, such as first
Benzene and dimethylbenzene etc., promote reaction to carry out.
According to the first aspect of the invention, the preparation method of described methyl oleate may include that oleic acid and methyl alcohol dense
Carry out the second esterification in the presence of sulfuric acid, obtain methyl oleate；Wherein, the mol ratio of described oleic acid and methyl alcohol can be
(2-2.5): 1, described concentrated sulfuric acid quality can be 5-7 mass % of described oleic acid quality, and the mass fraction of the described concentrated sulfuric acid can
Think 70-98 mass %；The temperature of described second esterification can be 135-150 DEG C, and the time can be 1.5-2 hour.Separately
Outward, described second esterification is preferably added to water entrainer, such as toluene and dimethylbenzene etc., promote reaction to carry out.
Second aspect present invention: prepared by the preparation method of the diesel fuel additives that offer first aspect present invention is provided
Diesel fuel additives.
Third aspect present invention: diesel fuel additives the answering in derv fuel that second aspect present invention is provided is provided
With.
According to the third aspect of the invention we, in described derv fuel, the addition of described diesel fuel additives can be 500-
1000 micro-gram gram, the micro-gram gram of preferably 300-900.
The present invention will be further illustrated by embodiment below, but the most therefore the present invention will be restricted.
The cold filter plugging point of embodiment of the present invention diesel oil uses SH/T 0248-2006 diesel oil and civil heating cold filter plugging point determination method
It is measured.
The diesel oil abrasion resistance of embodiment of the present invention diesel oil uses SH/T 0189-92 lubrication oil antiwear to damage performance measurement method
(four-ball tester method) is measured.
Embodiment of the present invention diesel oil complete analysis uses the method in GB 19147-2013 derv fuel (IV) to be measured.
Embodiment 1-2 provides preparation method and the diesel fuel additives of diesel fuel additives of the present invention.
Embodiment 1
Under about 120 DEG C backflows, esterification is carried out after acrylic acid, n-dodecanol, p-methyl benzenesulfonic acid and hydroquinones being mixed
1 hour until the esterification gained water yield, close to theoretical value, obtains dodecyl acrylate；Wherein, acrylic acid and n-dodecanol
Mol ratio is 1:1, and the addition of p-methyl benzenesulfonic acid is the 0.5% of the gross mass of acrylic acid and n-dodecanol, adding of hydroquinones
Enter the 1% of the gross mass that amount is acrylic acid and n-dodecanol.
After the concentrated sulfuric acid (98 mass %) that mol ratio is the formic acid of 2:1, methyl alcohol and oleic acid quality 6 mass % is mixed,
Add water entrainer toluene, carry out esterification 2 hours at about 140 DEG C, obtain methyl oleate.
Maleic acid is added after dodecyl acrylate, methyl oleate and the maleic anhydride of preparation being mixed with mol ratio 1:2:2
The benzoyl peroxide of the 1% of acid anhydride, dodecyl acrylate and methyl oleate gross mass and the dimethylbenzene of 50% mass are on 110 DEG C of left sides
The right side carries out polymerisation 5 hours under the protection of nitrogen, obtains maleic acid anhydride-propenoic acid ten diester-methyl oleate ternary polymerization
Thing is as diesel fuel additives 1, and flash-point is 65 DEG C.
Embodiment 2
By octadecyl acrylate, methyl oleate and the maleic anhydride purchased from lark prestige Science and Technology Ltd. with mol ratio 1:2:
The azo-bis-isobutyl cyanide and 50% of the 1% of addition maleic anhydride, octadecyl acrylate and methyl oleate gross mass after 2 mixing
The dimethylbenzene of quality carries out polymerisation 6 hours at about 120 DEG C under the protection of nitrogen, obtains maleic acid anhydride-propenoic acid ten
Eight Arrcostabs-methyl oleate terpolymer is as diesel fuel additives 2, and flash-point is 65 DEG C.
Comparative example
The present embodiment provides maleic anhydride-styrene-octadecyl acrylate terpolymer, with the preparation side of embodiment 2
Method is identical, only difference is that addition styrene reacts, rather than methyl oleate, obtain maleic anhydride-styrene-the third
Olefin(e) acid stearyl terpolymer is as additive D1.
Embodiment 3
The present embodiment provides the diesel oil adding diesel fuel additives of the present invention, and illustrates that the fall of diesel oil is filtered by diesel fuel additives of the present invention
(reduction cold filter plugging point) effect and anti-wear effect.
(1), the fall of finished diesel fuel is filtered effect.
With Daqing Petrochemical Refinery 0#Finished diesel fuel and-10#(0# finished diesel fuel picked up from finished diesel fuel on June 18th, 2015
Daqing Petrochemical Refinery 45# tank product oil ,-10# finished diesel fuel picks up from Daqing Petrochemical Refinery 46# tank on June 10th, 2015
Product oil) it is base stock, carry out cold filter plugging point test after being separately added into diesel fuel additives 1 and diesel fuel additives 2, concrete outcome is shown in
Table 1.Can be seen that diesel fuel additives that the present invention provides is to 0 from the data of table 1#Finished diesel fuel and-10#Finished diesel fuel all has aobvious
The fall filter effect write.
(2), the fall of high-content wax amount diesel oil is filtered effect.
Preparation high-content wax amount diesel oil: normal one 10%, normal 2 30%, hydro-upgrading 10%, hydrofinishing 50%.Measure diesel oil
Additive D1 prepared by additive 2, pour-point depressant T1804 (purchased from Beijing Xing You Chemical Co., Ltd.), comparative example is to high-content wax amount
The impact of cold filter point of diesel oil, concrete test result is shown in Table 2.From data in table 2, diesel fuel additives 2 is 400 adding concentration
There is during μ g/g preferably fall filter effect, add concentration when being 600 μ g/g, there is fabulous fall filter effect, and pour-point depressant T1804
With additive D1, filter effect is not dropped in high-content wax amount diesel oil.
(3), the fall of finished product low-sulfur diesel-oil is filtered and anti-wear effect.
Take and pick up from Daqing Petrochemical Refinery 49 on November 4th, 2015#Tank finished product low-sulfur diesel-oil (sulfur content is 240 μ g/g),
Adding diesel fuel additives 1, investigate its anti-wear effect, concrete data are shown in Table 3.From data in table 3, add diesel fuel additives 1
After, the wear scar diameter of diesel oil is substantially reduced, and illustrates that diesel fuel additives 1 has significantly fall filter and wear-resistant effect to finished product low-sulfur diesel-oil
Really.
(4), the diesel fuel additives impact on finished diesel fuel properties.
Take and pick up from Daqing Petrochemical Refinery 49 on November 5th, 2015#Tank common finished diesel fuel 1000g, adds diesel oil and adds
Agent 11.0g, detects properties after shaking up, concrete data are shown in Table 4.As can be seen from Table 4, diesel fuel additives 1 can significantly drop
The freezing point of low diesel oil, cold filter plugging point also improve its wear resistence, and 50% recovered (distilled) temperature of the diesel oil through adding agent is not higher than 300 DEG C,
90% recovered (distilled) temperature is not higher than 355 DEG C, and 95% recovered (distilled) temperature is not higher than 365 DEG C, meets state-set standard, and to its of diesel oil
Its property indices all has no adverse effect.
Knowable to embodiment 1-2, the preparation method of the diesel fuel additives that the present invention provides is simple, it is easy to industrialization, without three
Useless generation, effect on environment is little, and the flash-point of the diesel fuel additives of the present invention is up to 65 DEG C, can not only reach national regulation
Enterprise's storage standard (more than 55 DEG C), and this flash-point is also above other diesel fuel additives both at home and abroad.
Knowable to embodiment 3 and table 1-4, the diesel fuel additives of the present invention can reduce the cold filter plugging point of diesel oil, reduces mill spot
Diameter, and indices such as oxidation stability, burn into ash and the colorimetric etc. of diesel oil are all had no adverse effect.
Table 1: diesel fuel additives 1 and the diesel fuel additives 2 impact on finished diesel fuel cold filter plugging point
The fall of high-content wax amount diesel oil is filtered effect by table 2 diesel fuel additives 2
The fall of finished product low-sulfur diesel-oil is filtered and anti-wear effect by table 3 diesel fuel additives 1
Table 4 diesel fuel additives 1 impact on finished diesel fuel properties
| Project | Do not add agent diesel oil | Add agent diesel oil |
| Density 20 DEG C, kg/m3 | 0.8404 | 0.8404 |
| Freezing point, DEG C | -5 | -21 |
| Ash content, % | 0.003 | 0.004 |
| Acidity, mgKOH/100mL | 1.26 | 1.40 |
| Moisture, % | Vestige | Vestige |
| Flash-point (is remained silent), DEG C | 75 | 76 |
| Kinematic viscosity 20 DEG C, mm2/s | 4.216 | 4.249 |
| Cetane number | 48 | 48 |
| Boiling range: IBP | 178.9 | 178.9 |
| 50% evaporates outlet temperature, DEG C | 264.1 | 266.0 |
| 90% evaporates outlet temperature, DEG C | 329.0 | 329.7 |
| 95% evaporates outlet temperature, DEG C | 344.1 | 345.1 |
| EP, DEG C | 359.2 | 359.2 |
| Cold filter plugging point, DEG C | 0 | -11 |
| Sulfur content, % (m/m) | 0.024 | 0.024 |
| Corrosion (copper sheet (50 DEG C, 3h)) | 1a | 1a |
| Color, look number | 1.0 | 0.5 |
| Oxidation insoluble matter, mg/100mL | 2.28 | 2.14 |
Claims (9)
1. the preparation method of a diesel fuel additives, it is characterised in that the method includes:
Carry out polymerisation after maleic anhydride, acrylate, methyl oleate, initiator and organic solvent being mixed, obtain Malaysia
Anhydride-acrylic acid ester-methyl oleate terpolymer is as diesel fuel additives；
Wherein, the mol ratio of described maleic anhydride, acrylate and methyl oleate is 1:(0.5-3): (0.5-3), described propylene
Acid esters is acrylic acid and C12-C18Alcohol esterification gained.
The preparation method of diesel fuel additives the most according to claim 1, it is characterised in that the addition of described initiator is
0.5-1.5 mass % of described maleic anhydride, acrylate and methyl oleate gross mass, the addition of described organic solvent is institute
State 45-55 mass % of maleic anhydride, acrylate and methyl oleate gross mass.
The preparation method of diesel fuel additives the most according to claim 1, it is characterised in that described initiator is benzoyl peroxide
Formyl or azo-bis-isobutyl cyanide, described organic solvent is at least in dimethylbenzene, toluene and DMF
Kind.
The preparation method of diesel fuel additives the most according to claim 1, it is characterised in that the condition of described polymerisation
For: temperature is 110-120 DEG C, and the time is 4-6 hour.
The preparation method of diesel fuel additives the most according to claim 1, it is characterised in that the preparation side of described acrylate
Method includes: acrylic acid and alcohol are carried out in the presence of catalyst and polymerization inhibitor the first esterification, obtains acrylate；
Wherein, described alcohol is C12-C18Alcohol, the mol ratio of described acrylic acid and alcohol is 1:(0.5-1)；
Described catalyst is at least one in p-methyl benzenesulfonic acid, thionyl chloride and sulfuric acid, the addition of described catalyst
0.4-0.6 mass % for described acrylic acid and the gross mass of alcohol；
Described polymerization inhibitor is at least one in hydroquinones, stannous chloride, copper naphthenate and tert-butyl catechol, institute
State 0.5-1.5 mass % of the gross mass that addition is described acrylic acid and alcohol of polymerization inhibitor；
The temperature of described first esterification is 115-135 DEG C, and the time is 0.5-1 hour.
The preparation method of diesel fuel additives the most according to claim 1, it is characterised in that the preparation side of described methyl oleate
Method includes: oleic acid and methyl alcohol are carried out in the presence of the concentrated sulfuric acid the second esterification, obtains methyl oleate；
Wherein, the mol ratio of described oleic acid and methyl alcohol is (2-2.5): 1, and described concentrated sulfuric acid quality is the 5-7 of described oleic acid quality
Quality %, the mass fraction of the described concentrated sulfuric acid is 70-98 mass %；
The temperature of described second esterification is 135-150 DEG C, and the time is 1.5-2 hour.
7. the diesel fuel additives prepared by preparation method of diesel fuel additives described in any one in claim 1-6.
8. the application in derv fuel of the diesel fuel additives described in claim 7.
Application the most according to claim 8, it is characterised in that in described derv fuel, the interpolation of described diesel fuel additives
Amount is the micro-gram gram of 500-1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031427.7A CN105777985B (en) | 2016-01-18 | 2016-01-18 | The preparation method of diesel fuel additives and prepared diesel fuel additives and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031427.7A CN105777985B (en) | 2016-01-18 | 2016-01-18 | The preparation method of diesel fuel additives and prepared diesel fuel additives and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105777985A true CN105777985A (en) | 2016-07-20 |
| CN105777985B CN105777985B (en) | 2017-11-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109868166A (en) * | 2019-03-12 | 2019-06-11 | 南京科技职业学院 | A kind of compound diesel additive |
| CN109913280A (en) * | 2018-12-26 | 2019-06-21 | 湖北航天化学技术研究所 | A kind of diesel fuel additives and its application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109913280A (en) * | 2018-12-26 | 2019-06-21 | 湖北航天化学技术研究所 | A kind of diesel fuel additives and its application |
| CN109913280B (en) * | 2018-12-26 | 2021-03-26 | 湖北航天化学技术研究所 | Diesel oil additive and application thereof |
| CN109868166A (en) * | 2019-03-12 | 2019-06-11 | 南京科技职业学院 | A kind of compound diesel additive |
| CN109868166B (en) * | 2019-03-12 | 2020-11-03 | 南京科技职业学院 | Composite diesel additive |
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| CN105777985B (en) | 2017-11-14 |
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Application publication date: 20160720 Assignee: Huainan Tengrun Biotechnology Co.,Ltd. Assignor: Hangzhou Suteng Zhichuang Intelligent Technology Co.,Ltd. Contract record no.: X2022330000523 Denomination of invention: Preparation method of diesel oil additive and its application Granted publication date: 20171114 License type: Common License Record date: 20220928 |