CN1305520A - additive for fuel oil and fuel oil composition - Google Patents

additive for fuel oil and fuel oil composition Download PDF

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Publication number
CN1305520A
CN1305520A CN99807451A CN99807451A CN1305520A CN 1305520 A CN1305520 A CN 1305520A CN 99807451 A CN99807451 A CN 99807451A CN 99807451 A CN99807451 A CN 99807451A CN 1305520 A CN1305520 A CN 1305520A
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fuel
oil
composition
fuel oil
additive
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篠田实男
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Idemitsu Kosan Co Ltd
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Idemitsu Kosan Co Ltd
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    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/08Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
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    • C10L1/192Macromolecular compounds
    • C10L1/195Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C10L1/196Macromolecular 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
    • C10L1/1963Macromolecular 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 mono-carboxylic
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    • C10L1/197Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and an acyloxy group of a saturated carboxylic or carbonic acid
    • C10L1/1973Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and an acyloxy group of a saturated carboxylic or carbonic acid mono-carboxylic
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    • C10L1/2222(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
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Abstract

Disclosed is an additive for fuel oil which comprises an alkenyl succinimide compound or an alkyl succinimide compound or a boron adduct thereof, (b) an additive for distillate fuel oil wherein 90% of the lubricity enhancer is at a distillation temperature of 320 ℃ or higher, and (c) a low-temperature fluidity enhancer, and a fuel oil composition obtained by adding the above additive for fuel oil to fuel oil. Particularly, it is possible to provide a fuel oil additive having excellent performance for improving the lubricity of a fuel injection pump and the cleanliness of a fuel nozzle, and a fuel oil composition containing the fuel oil additive, in a light oil having a reduced sulfur content.

Description

Oil fuel is with additive and fuel oil composition
Technical field
The present invention relates to oil fuel with additive and fuel oil composition, relate to the oil fuel that adds in the use for diesel engine light oil especially for bike, boats and ships, generator etc. in more detail with additive and contain the fuel oil composition of this oil fuel with additive.
Background technology
In recent years, owing to, also require to reduce its sulphur content content, put down in October, 9 its content is limited in below the 0.05 weight % for diesel engine light oil to the deflated restriction.But known to realize this low sulfuration, during with the desulfurization of light oil material depth, its lubricity of the light oil products that obtains can reduce.That is to say have report to point out because this lubricity reduces, each several parts such as the squirt pump abrasion that are used as the diesel-fuel that the light oil of fuel is lubricated increase, and its result can cause problems such as engine rotation is bad, behaviour in service variation.The oilness of this light oil reduces can be thought because when removing sulphur content carrying out hydro-desulfurization from light oil, and sulphur content and nitrogen, the aromatic series isopolarity compound of giving oilness are removed together.Lubricity for this light oil reduces, and on the one hand hardware is adapted to it, requires oil fuel to adapt to it on the other hand, and this is studied, and has developed various lubricity enhancer and has added to wherein.
In addition, by the low sulfuration of light oil, can reduce the sulfuric acid パ テ キ ユ レ-ト amount in the diesel engine truck exhaust.But, have report to point out also can increase the output of パ テ キ ユ レ-ト because the clean level of fuel oil atomizer reduces.Therefore various sanitising agents are also studied, added to wherein.
Generally, above-mentioned lubricity enhancer can improve the oilness of fuel-injection pump, but can not make the fuel oil atomizer cleaning.On the other hand, above-mentioned sanitising agent can make the fuel oil atomizer cleaning, but almost can not improve the oilness of fuel-injection pump.For example, the spy opens flat 9-272880 communique and discloses a kind of low-sulfur light oil that is added with fatty acid esters of sorbitan, but can not make the fuel oil atomizer cleaning.In addition, the spy opens and discloses a kind of low-sulfur light oil that is added with salt that carboxylic acid and fatty amine form etc. in the flat 9-255973 communique, though can improve the oilness of fuel-injection pump and make the fuel oil atomizer cleaning, this effect can not be said so fully.And the flat 10-513208 of special table (Exone chemical; WO96/23855; on August 8th, 1996 is open) a kind of fuel oil composition that sulphur is no more than 0.05 weight % that contains disclosed; it distillates by 95% a little is that oil fuel and compositions of additives below 350 ℃ constitutes; described compositions of additives contains (a) acylated nitrogen compound and (b) the carbonatoms ester that to be 2~50 carboxylic acid or this carboxylic acid form with alcohol, has also improved its solubleness in oil fuel by (a) and the compositions of additives (b) formed when improving the oil fuel oilness.Therefore, the expectation spatter property aspect that appears at the oilness that improves fuel-injection pump and fuel oil atomizer has the additive of premium properties.In addition, improve the oilness of fuel-injection pump and the spatter property of fuel oil atomizer, particularly also very important for not hanging down sulfurized light oil.
The present invention is based on above-mentioned viewpoint, its purpose be to provide a kind of particularly for sulphur content reduced 90% at the recovered temperature distillate fuel oil more than 320 ℃, at the oil fuel that has premium properties aspect the spatter property that improves fuel-injection pump oilness and fuel oil atomizer with additive and the fuel oil composition that contains this oil fuel usefulness additive.
Invention is described
The inventor has carried out concentrated research, found that by using alkenyl succinimide compound or alkyl succinimide compound or their boron affixture a kind of composition as additive, can effectively reach the purpose of the invention described above, thereby finish the present invention.
That is to say that purport of the present invention is as described below.
(1) 90% uses additive at the recovered temperature distillate fuel more than 320 ℃ oil, contains (a) alkenyl succinimide compound or alkyl succinimide compound or their boron affixture, and (b) lubricity enhancer.
(2) 90% use additive at the recovered temperature distillate fuel more than 320 ℃ oil, contain (a) alkenyl succinimide compound or alkyl succinimide compound or their boron affixture, (b) lubricity enhancer and (c) low-temperature fluidity toughener.
(3) as (1) and (2) described oil fuel additive, lubricity enhancer is that carbonatoms is at least a in 4~22 unsaturated fatty acids or its dimeracid or their ester.
(4) in oil fuel, add any fuel oil composition that described oil fuel obtains with additive in (1)~(3).
(5) as (4) described fuel oil composition, be benchmark with the fuel oil composition total amount, (a) addition of composition is 20~1500 ppm by weight.
(6) as (4) or (5) described fuel oil composition, be benchmark with the fuel oil composition total amount, (b) addition of composition is 5~300 ppm by weight.
(7) as any described fuel oil composition in (4)~(6), be benchmark with the total amount of fuel oil composition, (c) addition of composition is 50~500 ppm by weight.
(8) as any described fuel oil composition in (4)~(7), oil fuel is diesel engine light oil.
(9) as (8) described fuel oil composition, the content of sulphur is 0.001~0.05 weight % in the diesel engine light oil.
(10) as (4) described fuel oil composition, 90% recovered temperature of oil fuel is more than 320 ℃.
(11) as (4) described fuel oil composition, 90% recovered temperature of oil fuel is more than 330 ℃.
(12) as (4) described fuel oil composition, 90% recovered temperature of oil fuel is more than 340 ℃.
(13) as (4) described fuel oil composition, 90% recovered temperature of oil fuel is more than 350 ℃.The preferred forms of invention
Embodiments of the present invention below are described.
At first explanation constitutes first invention of the application, i.e. oil fuel (a) composition---alkenyl succinimide compound or alkyl succinimide compound or their the boron affixture of additive.The dimer of the monomer of for example following general formula of this alkenyl succinimide compound and alkyl succinimide compound (1) and general formula (2). (in the formula, R 1, R 3And R 4For the number molecular-weight average are 300~4000 thiazolinyl or alkyl, can be the same or different R 5And R 6For carbonatoms is 2~4 alkylidene group, can be identical or different, m represents 1~10 integer, n represents 0 or 1~10 integer.)
In above-mentioned general formula (1), (2), R 1, R 3And R 4Preferred number molecular-weight average is 500~2000 thiazolinyl or alkyl, and more preferably several molecular-weight average are 500~1000 thiazolinyl or alkyl, and thiazolinyl is polybutene, ethylene-propylene copolymer for example, and alkyl is their hydrogenation products.
In the present invention, above-mentioned monomer, dimer all can use.
The poly-alkyl succinic anhydride that the polyalkenyl succinic anhydrides that above-mentioned alkenyl succinimide compound and alkyl succinimide compound can obtain by the reaction of polyolefine and maleic anhydride usually or its hydrogenation obtain reacts with polyamine and makes.Above-mentioned monomer or dimer can make by the reaction ratio that changes polyalkenyl succinic anhydrides or poly-alkyl succinimide and polyamine.The olefinic monomer that forms said polyolefins can use carbonatoms be 2~8 alpha-olefin one or more mix and use.On the other hand, polyamine is monomer diamines such as quadrol, propylene diamine, butanediamine, pentamethylene diamine for example, polyalkylene polyamine such as diethylenetriamine, Triethylenetetramine (TETA), tetren, penten, two (methyl ethylidene) triamine, two butylidene triamines, three butylidene tetramines, five pentylidene hexamines.
In addition, the boron affixture of alkenyl succinimide compound or alkyl succinimide compound can use the material that makes according to ordinary method.The preferred content of boron is 0.1~6 weight % in this boron affixture, and preferred content is 0.1~4 weight %.
Above-mentioned (a) composition can use one or more to be used in combination.
Secondly, (b) composition---the lubricity enhancer that constitutes first invention of the application is described.Lubricity enhancer used in the present invention is meant in order to reduce the additive that frictional coefficient adds, there is no particular limitation, preferred use carbonatoms is 4~22 unsaturated fatty acids or its dimeracid or their ester, more preferably uses the mixture of above-mentioned acid and its ester.This unsaturated fatty acids can be that the straight chain shape also can be catenate, for example decylenic acid, dodecenoic acid, tsuzuic acid (Star ズ acid), tetradecenoic acid, oleic acid, codeic acid (acid of コ De ィ Application), sinapinic acid, linolic acid, a linolenic acid etc.For example methyl alcohol, ethanol, oleyl alcohol, glycerine etc. of employed alcohol during esterification.Carboxylate can be the material of partial esterification in addition.
In addition, lubricity enhancer is amide compounds such as stearylamide, oleylamide, stearyl two (polyoxyethylene glycol) acid amides for example, aminated compoundss such as n-Laurylamine, Stearyl Amine, dimethylstearylamide, cyclo-hexylamine, dodecyl two (glycol ether) amine; Aminated compounds beyond phenyl-a-naphthylamine, dioctyl aniline, dinonyl aniline, phenylbenzene-p-phenylenediamine, bipyridyl amine, thiodiphenylamine, N-methyl thiodiphenylamine, N-ethyl thiodiphenylamine etc. are above-mentioned; Disulfides such as dibutyl disulphide, dioctyl disulphide, two (dodecyl) disulphide; Chlorinated hydrocarbons such as clorafin, chlorinated naphthalene, chlorination alkylbenzene; Phosphinic acid esters such as normal-butyl di-n-octyl phosphinic acid ester; Phosphonic acid esters such as di-n-butyl hexyl phosphonic acid ester, di-n-butyl Phenylphosphine acid esters; Phosphoric acid esters such as Tributyl phosphate ester, trimethylphenyl phosphoric acid ester, three (vaccenic acid base) phosphoric acid ester, two-ethylhexyl dihydrogen phosphate; 2,6-di-t-butyl-p-cresol, 2,2 '-methylene radical two (4-methyl-6-tert butyl phenol), 2,2 '-methylene radical two (4-ethyl-6-tert.-butyl phenol), 2,5-two amyl hydroquinone, 2,5-di-tert-butyl hydroquinone, 4,4 '-sulfo-two (the 6-tertiary butyl-meta-cresol), octadecyl-3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester, 3,5-di-t-butyl-4-hydroxyl-phenmethyl phosphonic acids-diethyl ester, triglycol two phenol such as (3-(the 3-tertiary butyl-5-methyl-5-hydroxy phenyl) propionic esters) etc.
Above-mentioned (b) composition can use more than a kind or 2 kinds and be used in combination.
Above-mentioned (a) composition is 90: 10~10: 90 with (b) components in proportions preferred weight ratio, the oil fuel of this first invention can be by with lamp light oil and carbonatoms being the dilution of about 8~10 thinners such as aromatic solvent with additive, add additives such as antioxidant, metal inert agents, microorganism sterilizing agent, frostproofer, antistatic agent, anticorrosive agent, defoamer, rust-preventive agent, ignition dope, tinting material, marker more as required, (a) composition and (b) total amount of composition preferably are adjusted to 20~80 weight % make.
The oil fuel of this first invention except that (a) composition, (b) composition, if add the low-temperature fluidity toughener as (c) composition, then can further improve the oilness of oil fuel with additive.There is no particular limitation for the low-temperature fluidity toughener as (c) composition, the preferred ester (spy opens clear 57-1790993 communique) that uses nitrogenous compound with hydroxyl and straight chain shape saturated fatty acid to form, this ester be selected from alkene, ethene unsaturated carboxylic acid alkyl ester and the saturated fatty acid vinyl ester polymer of monomers (spy opens clear 58-138791 communique) more than a kind or 2 kinds.Other low-temperature fluidity toughener is ethene-vinyl acetate base ester copolymer, ethene-alkyl-alkyl thing, polyalkyl acrylate, alkenyl succinamide etc. for example.
Above-mentioned (c) composition can use more than a kind or 2 kinds and be used in combination.
As 100 parts, above-mentioned (c) components in proportions is preferably 30~150 weight parts with the total amount of (a) composition and (b) composition.Oil fuel additive (a), (b) and (c) by with lamp light oil and carbonatoms being about 8~10 thinners such as aromatic solvent dilution, add additives such as antioxidant, metal inert agents, microorganism sterilizing agent, frostproofer, antistatic agent, anticorrosive agent, defoamer, rust-preventive agent, ignition dope, tinting material, marker more as required, the total amount of (a) and (b), (c) composition preferably is adjusted to 20~80 weight % makes.
Second invention of the application is to add the fuel oil composition that above-mentioned oil fuel obtains with additive in oil fuel.The for example various hydro carbons of this fuel oil composition basis oil fuel, from preferred gasoline of aspect of performance or diesel engine light oil, preferred especially diesel engine light oil.This its various characteristics of diesel engine light oil all satisfies JIS (JISK2204), especially preferably contains the material of sulphur content 0.001~0.05 weight %.In addition, preferred 30 ℃ of current downflow viscosity are 1.7mm 2The material that/s is above for example can use the sulphur content with hydro-desulfurization light oil (DGO), hydrogenation decomposition light oil (HCGO) etc. or its mixture to be adjusted to the material that above-mentioned scope makes.
Diesel engine gas oil composition of the present invention preferably contains the material of sulphur content 0.001~0.05 weight %, if sulphur content content has exceeded this scope, then above-mentioned sometimes oil fuel can diminish with the effect of additive.
In addition, as the distillation proterties, preferred 90% recovered temperature is more than 320 ℃, and more preferably more than 330 ℃, more preferably more than 340 ℃, most preferably more than 350 ℃, if be lower than 320 ℃, then the effect of fuel oil additive diminishes.
Above-mentioned hydro-desulfurization light oil (DGO) generally can suitably use boiling point in 140~390 ℃ scope, and its density is 0.80~0.90 material.In addition, it is the material of 0.005~0.5 weight % that above-mentioned hydro-desulfurization light oil (DGO) generally can use sulphur content, and preferably using sulphur content is the following material of 0.05 weight %.
In addition, above-mentioned hydro-desulfurization light oil (DGO) is to use hydrodesulfurization unit specifically, in the presence of catalyzer such as Co-Mo/ aluminium oxide catalyst, Ni-Mo/ aluminium oxide catalyst, at 30~100kg/cm 2(preferred 50~70kg/cm 2) pressure under, under the temperature of 300~400 ℃ (preferred 330~360 ℃), be 0.5~5hr in liquid hourly space velocity (LHSV) -1(preferred 1~2hr -1) condition under, make straight run light oil (LGO) carry out desulphurization reaction as stock oil, remove the material that hydrogen sulfide and petroleum naphtha obtain with stripping tower afterwards.
Above-mentioned hydrogenation is decomposed light oil (HCGO) and is meant in the presence of catalyzer heavy light oil (HGO), decompression light oil (VGO) or its mixture hydrogenation decomposition, the material that the oily fractionation by distillation that this decomposition is generated obtains, it is the material of 0.0001~0.2 weight % that above-mentioned hydrogenation decomposition light oil (HCGO) generally can use sulphur content content.
In addition, except that above-mentioned light oil basic material, use after can mixing common employed light oil distillate in case of necessity, for example straight run light oil (LGO), the byproduct light oil (DSGO) that obtains by the heavy oil direct desulfurization unit, the byproduct light oil (LCO) that obtains by the catalytic decomposition device, the LCO (DSLCO) after the desulfurization, the byproduct light oil (VHLGO) that obtains by the indirect desulfurization device, dewaxing light oil (DWLGO), dewaxing desulfurization light oil (DWDGO), desulfurization lam-oil cut (DK) etc.
Oil fuel with the addition of additive as long as (a) and (b), (c) composition reach following amount.
For mentioned component (a), be benchmark with the total composition, preferred 20~1500 ppm by weight, more preferably 50~800 ppm by weight.If be lower than 20 ppm by weight then be difficult to improve the spatter property of nozzle, if surpass 1500 ppm by weight then can not effectively improve the spatter property of nozzle.
For above-mentioned (b) composition, be benchmark with the total composition, preferred 5~300 ppm by weight, more preferably 10~150 ppm by weight.If be lower than 5 ppm by weight then be difficult to improve the oilness of pump, if surpass 300 ppm by weight then can not effectively improve the oilness of pump.
For above-mentioned (c) composition, be benchmark with the total composition, preferred 50~500 ppm by weight, more preferably 100~400 ppm by weight.If be lower than 50 ppm by weight then be difficult to improve the oilness of pump, if surpass 300 ppm by weight then can not effectively improve the oilness of pump by synergy with (b) composition by synergy with (b) composition.
In the scope of not damaging effect of the present invention, in fuel oil composition of the present invention, can suitably add additives such as antioxidant, metal inert agents, microorganism sterilizing agent, frostproofer, antistatic agent, anticorrosive agent, defoamer, rust-preventive agent, ignition dope, tinting material, marker in case of necessity.These additives can add respectively with additive with above-mentioned oil fuel, normally are fitted together interpolation with oil fuel with additive-package.
Embodiment
Below in conjunction with the present invention of embodiment more detailed description, but the present invention is not subjected to any qualification of these embodiment.Embodiment 1~3; Comparative example 1,2 and reference example 1
(1) preparation of diesel engine gas oil composition of the present invention
(ⅰ) for examination light oil
Use the deep desulfuration light oil shown in the following table 1.
Table 1
Project Measured value Measuring method
Density (g/cm 3,15℃) 0.8321 JISK2249
Kinetic viscosity (mm 2/s,30℃) 4.279 JISK2283
Yield point (℃) -5.0 JISK2269
Cloud point (℃) 3.0 JISK2269
Cetane value 55.1 JISK2280
The obstruction temperature (℃) 1.0 JISK2288
Sulphur content (weight %) 0.026 JISK2541
The distillation proterties (℃) 10 volume %, 50 volume %, 90 volume % 222.0 288.5 352.0 JISK2254
(ⅱ) additive
Add following additives according to the ratio shown in the table 2 and make gas oil composition.
(a) succinimide of composition
Making several molecular-weight average is that 960 polybutene adds on the maleic anhydride, makes the tetren addition make polybutylene-based succinimide again, and viscosity is 32mm during with 40 ℃ with it 2The mineral oil dilution of/s is the material of 64 weight % with concentration adjustment.
(b) lubricity enhancer of composition
Principal constituent is that carbonatoms is the mixture of 18 unsaturated fatty acids, with linolic acid, oleic acid and linolic acid is that (amount of each acid is 15~50 weight % to main component, total amount is the mixture of 90 weight %), with carbonatoms is the dilution of 10 aromatic series kind solvent, makes effective constituent reach the material of 20 weight %.
(c) the low-temperature fluidity toughener of composition
The mixture that is made of trolamine (25 weight %), three behenates (50 weight %) and ethene-vinyl acetate base ester copolymer (25 weight %) is that 10 aromatic series kind solvent dilutes with carbonatoms, makes effective constituent reach the material of 50 weight %.
(2) to the evaluation of nozzle cleaning
For the gas oil composition that makes as mentioned above, carry out the evaluation of following nozzle cleaning.
The polyphone 4 cylinder diesel engine that make the 2400cc level settling chamber combustion system that the grooved nozzle is installed were with rotating speed 2400rpm, torque 12.7kgm (load factor 80%) running 18 hours.After running finishes, in order to investigate the stained state of nozzle, use air flow rate measuring device, mensuration pressure is 0.5kg/cm 2Airflow out-of-date, the flow at jet orifice place when the needle-valve of nozzle is mentioned 0.00~0.6mm.Calculate air flow quantity area, the area before the comparison test after (new product) and the test, the stained degree of evaluation nozzle with respect to this needle-valve lifting capacity.If to compare the discharge area sustainment rate that obtains with respect to the air flow quantity area value of needle-valve lifting capacity be 100% before and after the test, then show with test before new product same, do not have contaminated fully.On the contrary, if be 0%, show that then obstruction can not burner oil fully.Its result is as shown in table 2.
(3) evaluation of lubricity
Use HFRR (the high FrequencyReciprocation Wear Rig: device high frequency to-and-fro movement trier) of the European integration CEC-F-06-T94 of the council, under the condition of load 200g, 60 ℃ of test oil temperature, vibrational frequency 50Hz, test period 75 minutes, sample size 2ml, wear test hemisphere.Use microscope to be somebody's turn to do the range that wears away trace, obtain average abrasion amplitude (μ m) in X (horizontal stroke), Y (indulging) direction detection.Its result is as shown in table 2.
Table 2
Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2 Reference example 1
Succinimide addition * 500 ?500 ?100 ????0 ?500 ????0
Lubricity enhancer addition * ????75 ????75 ????100 ????75 ????0 ????0
Low-temperature fluidity toughener addition * ????0 ?275 ?275 ????0 ????0 ????0
Nozzle flow area sustainment rate (%) ????70 ????72 ????50 ????35 ????54 ????35
HFRR wears away amplitude (μ m) 330 ?310 ?300 ?400 ?560 ?580
(notes) * ppm by weight
Be added with the gas oil composition nozzle flow area sustainment rate height of additive of the present invention as known from Table 2, improved the spatter property of nozzle.In addition, the abrasion amplitude is little, has improved oilness.
Embodiment 4,5 (reducing effect and the spatter property effect of PM in the exhaust)
Adopt the relatively output of PM (particulate matter is also referred to as パ テ キ ユ レ-ト material) of engine shown in following table 3, the table 4 and appreciation condition.That is to say, use the fuel shown in above-mentioned table 1 (embodiment 4) and the table 5 (embodiment 5) and the engine of table 3, under the stained condition of the nozzle of table 4, behind the walking 5000km, under the nozzle cleaning recovery condition of table 4, make nozzle become clean.
Secondly, adopt the engine condition and the miniature dilution tunnel system (making of hole field is produced) of the mensuration PM output of table 4,, measure the output of PM with reference to diesel engine automobile particulate matter test method (TRIAS-24-5-1993).Its result is as shown in table 6.Comparative example 3,4
In addition, except that not using succinimide and low-temperature fluidity toughener, with embodiment 4 and the 5 same outputs of measuring PM.The result is as shown in table 7.
The salient features of the used engine of table 3
Performance Content
Cylinder is arranged 4 cylinders of contacting
Combustion system Eddy cell type
Gross exhaust gas (cc) 2982
Compression ratio 21.2???
Torque capacity (Nm/rpm) 289/2000
Peak power (Kw/rpm) 95.6/3600
The squirt pump form The distribution type electronic control mode
Table 4 engine appreciation condition
The stained condition of nozzle Nozzle cleaning recovery operating condition PM output condition determination
Engine revolution (rpm) ????2000 ????2600 ????1500
Engine loading rate (%) ????80 ????25 ????80
Lubricating oil temperature (℃) ????85 ????85 ????85
Engine cooling water temperature (℃) ????80 ????80 ????80
Intake air temperature (℃) ????25 ????25 ????25
The suction atmospheric moisture (℃) ????50 ????50 ????50
The oil fuel temperature (℃) ????25 ????25 ????25
Runtime (hr) Run to 5000km ????8 ????0.5/Test
The proterties that table 5 is fuel used
Project Proterties Measuring method
Density (g/cm 3,15℃) 0.8274 JIS-K-2249
Kinetic viscosity (mm 2/s,30℃) 3.535 JIS-K-2283
Cetane value 57.0 JIS-K-2280
Sulphur content (wt%) 0.04 JIS-K-2541
The distillation proterties (℃) 10 volume % 204.0 JIS-K-2254
50 volume % 283.0
90 volume % 330.0
Table 6 PM output (embodiment)
Embodiment 4 Embodiment 5
Succinimide addition * 1000 1000
Lubricity enhancer addition * 75 75
Low-temperature fluidity toughener addition * 275 275
PM output (g/kwh) 0.834 0.965
Use fuel The fuel of table 1 The fuel of table 5
(notes) * ppm by weight
Table 7 PM output (embodiment)
Comparative example 3 Comparative example 4
Succinimide addition * 0 0
Lubricity enhancer addition * 75 75
Low-temperature fluidity toughener addition * 0 0
PM output (g/kwh) 1.155 1.254
Use fuel The fuel of table 1 The fuel of table 5
(notes) * ppm by weight
Industrial applicibility
According to the present invention, particularly for the light oil that has reduced sulphur content content, can provide a kind of improving fuel-injection pump lubricity and the spatter property of nozzle aspect have a premium properties fuel oil with additive and the fuel oil composition that contains this fuel oil usefulness additive.

Claims (13)

1,90% use additive, contain (a) alkenyl succinimide compound or alkyl succinimide compound or their boron affixture at the recovered temperature distillate fuel more than 320 ℃ oil, and (b) lubricity enhancer.
2,90% use additive, contain (a) alkenyl succinimide compound or alkyl succinimide compound or their boron affixture, (b) lubricity enhancer and (c) low-temperature fluidity toughener at the recovered temperature distillate fuel more than 320 ℃ oil.
3, oil fuel additive as claimed in claim 1 or 2, lubricity enhancer are that carbonatoms is at least a in 4~22 unsaturated fatty acids or its dimeracid or their ester.
4, in oil fuel, add any fuel oil composition that described oil fuel obtains with additive in the claim 1~3.
5, fuel oil composition as claimed in claim 4 is a benchmark with the fuel oil composition total amount, and (a) addition of composition is 20~1500 ppm by weight.
6, as claim 4 or 5 described fuel oil compositions, be benchmark with the fuel oil composition total amount, (b) addition of composition is 5~300 ppm by weight.
7, as any described fuel oil composition in the claim 4~6, be benchmark with the total amount of fuel oil composition, (c) addition of composition is 50~500 ppm by weight.
8, as any described fuel oil composition in the claim 4~7, oil fuel is diesel engine light oil.
9, fuel oil composition as claimed in claim 8, the content of sulphur is 0.001~0.05 weight % in the diesel engine light oil.
10, fuel oil composition as claimed in claim 4, the recovered temperature of 90% oil fuel is more than 320 ℃.
11, fuel oil composition as claimed in claim 4, the recovered temperature of 90% oil fuel is more than 330 ℃.
12, fuel oil composition as claimed in claim 4, the recovered temperature of 90% oil fuel is more than 340 ℃.
13, fuel oil composition as claimed in claim 4, the recovered temperature of 90% oil fuel is more than 350 ℃.
CN99807451A 1998-06-15 1999-06-15 additive for fuel oil and fuel oil composition Pending CN1305520A (en)

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