TW200907042A - Wear reducing agent for low sulphur fuel oil - Google Patents

Abstract

A wear reducing agent for low sulphur fuel oil, and a composition of a low sulphur fuel oil containing the wear reducing agent are provided. The wear reducing agent can have a good wear reducing property even when an adding amount of the wear reducing agent is low. The wear reducing agent for low sulphur fuel oil of the invention includes a compound (A) contains saturated carboxylic acids of C14 to 22 and unsaturated carboxylic acid. Kinematic viscosity of the compound (A) ranges from 15 to 21 mm2/s at 40DEG C. The compound (A) comprises saturated monocarboxylic acid (a1) of C14 to 22, monounsaturated monocarboxylic acid (a2) of C14 to 22, diunsaturated monocarboxylic acid (a3) of C14 to 22 and unsaturated monocarboxylic acid (a4) of C14 to 22. In the total weight of the compound (A), the content of (a1) ranges from 1. 5 to 8. 0 wt%, while that of (a2) and (a3) ranges from 84. 0 to 96. 5 wt% and that of (a4) ranges from 2. 0 to 8. 0 wt%.

Description

200907042 IX. Description of the invention: [Technical field to which the invention belongs], and by έ and ^月Γ have reduced wear agent for low-sulfur yellow fuel oil and the domain coarse ==:=_ and fuel oil composition == Wear and, in turn, prevent the introduction of condensed water. [Prior Art] Countries are paying more and more attention to the global environmental problems. Therefore, the reduction of the emission control of the oil gamma in the world λ and the sulfur content of the sulphur in the diesel oil contain two oils. It is necessary to remove the wood and remove the w material for deep desulfurization. In the process: US =: Lubricating substance, resulting in reduced lubrication performance. : The people of Wu Zhuguo reported the following examples: Chai! ‘The self-injection pump is made of diesel oil and the ρ (^ eilgme) machine is used to deal with the poor rotation of the upper pot. However, === parts of the diesel engine. i Spontaneous fuel economy to deal with, so to study to 'now add various compounds to the diesel system to add fineness, please open (10) small ==; =: compound is added, this patent, however, the previously added reducing wear agent can not produce Full wear resistance 200907042 Damage, 3⁄4 increase in usage often leads to problems such as oxidative stability of fuel oil. Therefore, it is desirable to have a low-sulfur fuel oil reducing wear agent, which reduces wear and tear, and exhibits excellent wear resistance even if the enthalpy does not cause a problem of oxidative stability of the fuel oil. DISCLOSURE OF THE INVENTION An object of the present invention is to provide a low-sulphur fuel oil-reducing agent for low-sulfur yellow fuel oil which has excellent wear resistance even when added in a low amount, and further provides a low-sulfur fuel oil composition containing the wear-reducing agent. The inventors of the present invention have conducted intensive studies and found that the specific kinetic viscosity is known to reduce the wear agent for an excellent low sulfur content, thereby completing the present invention. [Embodiment] Hereinafter, embodiments of the present invention will be described. In the present invention, the mixture (A) of the saturated carboxylic acid having 14 to 22 carbon atoms and the unsaturated carboxylic acid contains at least one saturated carboxylic acid having 14 to 22 carbon atoms and at least one kind of unsaturated lysine. Further, (A) the dynamic viscosity (-C viscosity) under the armpit is 15 to 21 mm 2 /s, preferably 16 to 2 mm 2/5. If (4) the dynamic viscosity at 40 C is less than 15 mm2/s, the effect of reducing the low-fracture of low-sulfur fuel oil is not sufficient; if it exceeds 21 mm2/s, the viscosity at low temperature is increased and it is difficult to operate. (A) at 4〇. The dynamic viscosity of the underarm can be measured by using Jis κ 2283 crude oil and a petroleum product one-viscosity test method. The carboxylic acid contained in (Α) may, for example, be a saturated aliphatic acid (four) having a carbon number of 14 to 22, a monounsaturated-fluoric acid (a2) having a carbon number of 14 to 22, and an anorexia 14 22- Unsaturated unary tarenic acid (a3), sarcophagus number 14~22 three 200907042 Unsaturated one dollar rebel acid (a4). The saturated monocarboxylic acid (al) having a carbon number of 14 to 22 may, for example, be myristic acid, pentadecylic acid, palmitic acid, margaric acid or stearic acid. Stearic acid, arachidic acid, and behenic acid. Among the (al), a saturated monocarboxylic acid having a carbon number of 16 to 18 is preferred, and palmitic acid, stearic acid, and the like are preferably used in combination. When palmitate and stearic acid are used, the weight is preferably 1/1 to 1/2.5, more preferably 1/1 to 1/2. The monounsaturated monocarboxylic acid (a2) having a carbon number of 14 to 22 may be exemplified by myristoleic acid, palmitoleic acid, petroselinic acid, and oleic acid. ), elaidic acid, asclepinic acid, vaccenic acid, gadoleic acid ), gondoic acid, ceteleic acid, erucic acid, and brassic acid. Among the (a2), a monounsaturated monobasic acid having a carbon number of 14 to 20 is preferred, and oleic acid is particularly preferred. If the carbon number is less than 14 or exceeds 22 Å, there is a case where the solubility in diesel fuel oil is insufficient or the lubricity is insufficient. One of the reverse number of stones 14~22 is one of the unsaturation ones (a3): linoleic acid, trans-2-decadienoic acid, cis-4-anthracene acid, anti-_1〇· Octadecadienoic acid and anti-12·octadecadienoic acid. In (a3), it is preferred that the carbon number is from 14 to 20% of the unsaturated monobasic acid, and particularly preferred is flax, 'from acid.

200907042 Carbon number 14~22 three unsaturation--μ · Tannic acid (a4) can be cited as: α-eleostearic acid, β-tung acid, stone minus γ .. . / 夂 punicic acid (jnimdcacid), sub-linen ^. (hnolemc acid), ^ ^ + ^ view her ndc acid) and 20 charcoal tribasic acid (dc〇satri (10) Na Na = 4) 'better is the carbon number is 14~ 2g of the three unsaturated - elemental acid, especially good linoleic acid. - Therefore, some of the treason can be shouted by natural coconut oil such as refined coconut oil, grazing oil, peanut oil, big ugly oil, eucalyptus oil, i sesame oil, cole seed oil, rice bran oil, vegetable oil, butter and (four). By Xiang or mixing these traitors, the ratio of (al) to (a4) can be arbitrarily changed. The preferred content of each of (al) to (a4) in (A) is: calculated as the weight of (4), (8) is 1 > 5 to 8. G weight percent (wt%), (a2), and (d) total It is 84.0 to 96.5 wt%, and (a4) is 2 〇 to 8 〇 wt%. More preferably, (al) is 1.5 to 4.5 wt%, (a2) and (a3) are 88.5 to 96.5% by weight, and (4) is 2.0 to 7.0 plus 〇/〇. When the content is in the above range, the oxidative stability as a reducing wear agent is further improved, and the emulsification resistance is good. 0 To improve oxidative stability or workability at low temperature, the wear reducing agent of the present invention may be in addition to the above (A). One or more kinds selected from the group consisting of antioxidant (1)), cloud point reducing agent (C), and diluent (D) are contained. Examples of the antioxidant (B) include an amine compound (naphthylamine compound, a diphenylamine compound, a P-phenylenediamine compound, and the like), and a phenol compound. . The phenylamine-based compound in the compound of the private compound can be exemplified by: (p. 200907042 Benzene·anhydroxylamine>dimethyleneamine, 4,4′-(α,αι_didecylbenzyl)diphenyl) Low temperature reactants of alkamine, 4,4'-dioctyldiphenylamine, 4_monooctyldiphenylamine, diphenylamine and acetone, low temperature reactant of diphenylamine and acetone a low-temperature reaction product of monophenylamine with aniline and acetone, a reaction product of diphenylamine with diisobutylene, and a mixture of octylated diphenylamine.

Examples of the phenolic compound include an alkylphenol such as p-nonphenol, 2,4-methyl-6-tert-butylphenol, 2,6-di-t-butylphenol, and 2,6-third. D-, p-cresol, tert-butylhydroxymethoxybenzene, 4,4-indenyl bis-(2,3-di-butylphenol), and N-butyl-p-aminophenol. Among the antioxidants, it is preferred to (p-toluenesulfonamide diphenylamine, 4,^(α,α'_dimethylbenzyl)diphenylamine, 4,4,_dioctyl Phenylamine, 4-monooctyldiphenylamine, 6-test, and 2,4-dimethyl-7-t-butylphenol, etc. The amount of antioxidant (Β) added is 1 relative to (Α) The 〇〇 by weight is usually 0.5 parts by weight or less, preferably G1 to G 3 parts by weight. The cloud point reducing agent (C) may, for example, be a poly(indenyl) acrylate vinegar-based pour point depressant. (C1), ethylene-vinyl acetate (ethyiene_vi_c敝, VA) is an hunger-reducing agent (C2), and a dilute-based acid (the (4)-based pour point depressant (C3), etc. have been used previously. The compound (poly) (meth) acrylate is a pour point depressant, methyl propyl, ketone _ is a polymer which must constitute a monomer. (; f acrylic acid I is the money of Wei Wei or nuclear base) propylene Examples of the acid-base vinegar include (methyl(tetra) acid A-, (methyl) 】 0 200907042 decyl methacryiate, dodecyl (meth)acrylate, (methyl) propyl fosinate thirteen Ester, (meth) propylene Tetradecyl ester, (meth)acrylic acid dec = 3⁄4, hexadecyl (meth) acrylate, octadecyl (meth) acrylate, etc. Examples of the polymer include Japanese Patent Laid-Open Publication No. H-35-498. EVA-based pour point depressant (C2), examples thereof include ethylene-vinyl acetate copolymer and ethylene-vinyl acetate-2-ethylhexanoate ethylene terephthalate copolymer And the polymer described in Japanese Laid-Open Patent Publication No. Hei 11-240905. The ASA-based pour point depressant (C3) may, for example, be an alkenyl group having a carbon number of 8 50, a k-j-self-brewed amine (aikenyisuccinarnide) From the viewpoint of easy adjustment to an arbitrary crystallization starting temperature, (C) is preferably a poly(meth)acrylate-based pour point depressant (C1). The addition amount of the cloud point reducing agent (C) With respect to (A), it is usually 小于.0 parts by weight, preferably 0.1 to 0.5 parts by weight, based on 1 part by weight of (A). The diluent (D) may be a hydrocarbon solvent. Specific examples include, for example, "Pegasol 304" manufactured by Exxon M〇bll Chemical Co., Ltd. Solubility parameters (sp • value) such as “0”, “pegas〇l AN-45”, Pegasol AS-100” and “Exxs〇1 D4〇” are 6 8 of the fat-free agent; Exxon Mobil (£ Χχ〇η M〇bn)

Sol 鬲 芳香族 芳香族 Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol Sol And a cycloalkane solvent containing an aromatic hydrocarbon or a cycloalkane having an sp value of about 8. This 200907042 = solvent can be used alone or in combination of two or more. The amount of the diluent (9) added is 100 parts by weight relative to (4), and is less than or equal to U parts by weight, preferably less than Equal to 0.5 parts by weight ^ If the range is exceeded, the ignition point is lower. In the wear reducing agent of the present invention, the respective contents of the (AHD) component are reduced in the weight of the abrasive agent, and generally (4) is 97 5 to 100 0 wt%, and more than 9 δ.0 to < 7 Wt%. (9) is 0.5 wt% or less, preferably θ 0.1 to 0.3 Wt ° /. '(C) is 小于 wt% or less, preferably 〇"~ = wt% ′ (D) is less than or equal to 1. 〇 wt%, preferably 〇 以 〇 。. . The turbidity of the rutting agent of the present invention is 1 to _10 ° C, preferably 8 to -8 ° C, more preferably 7 to -7 t:, and the flow point is ~-u. 5t. Preferably, it is 5. 〇 ~_10.0 ac, more preferably 5 to 10.0 C, and the ignition point is greater than 〇〇 ° ° C, preferably greater than or equal to 21 〇 ° C. When the cloud point, the flow point, and the ignition point are outside the range, when the temperature is greater than or equal to 1 〇C, the crystallization of the carboxylic acid may be caused to occur, or the wear agent may be deteriorated. The wear reducing agent of the present invention can be obtained by uniformly mixing (A) and, if necessary, (B) to (D). Further, two or more kinds of carboxylic acids constituting (A) may be added separately. The low sulfur ore fuel oil composition of the present invention comprises a low sulfur fuel oil and 20 to 300 ppm of the above-mentioned reduced wear agent. The low sulfur fuel oil has an initial boiling point (IBP) of 140 to 200 ° C, a 10% distillation temperature of 170 to 260 ° C, a 50% distillation temperature of 240 to 310 ° C, and a 90% distillation temperature of 12 200907042. It is a distillation property of 310 to 35 (TC, distillation end point (EP) of 340 to 38 Torr, density (15C) is 0.8200 to 0.8400 g/cm3, -l (the wax precipitation amount of TC is 1 · 0 to 4.0%, The content of the sulphuric acid is 1 to 5 〇〇 ppm. The low-sulfur fuel oil of the present invention may be JIS No. 1 diesel or yaw, which is obtained by blending two or more of the following eucalyptus oils as needed. _ Oil, JIS No. 3 diesel and JIS Special No. 3. Diesel oil is obtained from an atmospheric distillation unit of low shale crude oil (for example, Minas crude, etc.) Straight-run diesel, hydrocrefoil obtained by treating a straight-run heavy oil or a residual oil obtained from a normal-pressure retorting apparatus with a vacuum distillation apparatus, and hydrogenating a straight-distilled diesel or a vacuum diesel oil by a hydrorefining apparatus Diesel oil, hydrogenated desulfurized diesel oil obtained by nitriding desulfurization under more severe conditions than hydrogenation refining, and further hydrogenation Hydrogenated diesel oil obtained by dissolving the above diesel fuel material. ~ The above is preferably JIS No. 1 diesel oil, JIS No. 2 diesel oil, JIS3 manufactured by hydrorefining oil selection and hydrogenation desulfurization diesel oil of 5 〇wt〇/〇 or more. No. diesel and JIS special No. 3 diesel. ^ The distillation property of the low sulfur diesel of the present invention is preferably as shown below.

Distillation initial boiling point (IBP) = 140~200°C

10% distillation temperature = 170~260 °C

50% distillation temperature = 240~310 °C

90% distillation temperature = 310~350 °C

Distillation end point (EP) = 340 to 380 ° C Here, the steaming property is a value measured by JIS K2254 "Petroleum Products - Steaming Rights 13 200907042 Test Method". 3 The density of the low sulfur diesel (this art) is 0.8200 ~ 0.8400 = here 1 Good ίί is Q.825Q ~ Q.835G g / cm3. If the low-sulphur diesel is in the second and second, the diesel engine's fuel consumption, engine power, and the start-up of the fox are good. Here, the density (15. 〇 is a value measured by using JISK2249 "crude oil and petroleum π port to ten Λ θ λ% σ . 贝 贝 . 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量 容量The amount of wax precipitated in diesel oil is 〜1°C, and it is preferably U~3'0%. If the amount of precipitation of -l〇〇C is in this range, the low-temperature fluidity of low-sulfur yellow diesel oil Good. The amount of wax precipitated in the following way. Gently, 20 ml of diesel oil is cooled to a temperature higher than the turbidity point, and then cooled in a filter in a thermostatic bath. Moreover, helium gas filtration will , the damage is trapped in the filter (pore size: 5 barrier, straight ^: # "butanone cleaning the filter, the device is dried, the weight of the filter is measured, the amount of wax is quantified. The content is usually 20 to 300, ≤ ρ, more preferably 50 to 170 ppm. If less than;; = to prevent insufficient grinding; if more than 3 GG ppm, add, damage economic. Evaluation of the abrasion resistance of the sulfur fuel oil composition, the friction mill for the lubricity evaluation of the diesel oil, etc.: 5 : Evaluation of the test method. For example, the test can be carried out by the following test. Using the Falex Brock on ring friction test. Using the b〇cle test machine (ASTMD5〇〇1), using the test ^ 14 200907042 ( Tests by Germany ORT (OPTIMOL), and high-frequency test (HFRR test), etc. These t, especially by high-reaction test (English: PCS INSTRUMENTS) evaluation and actual fuel of diesel fuel oil The wear of the pump is highly correlated, so it is better to use the tester for dry evaluation. The low-sulfur fuel oil composition of the present invention is suitable for use in a diesel engine, such as a boiler, etc., having a sulfur content of 1 to 500 ppm. Fuel oil), or fuel oil for an injection engine of an airplane or the like. ', [Embodiment] Hereinafter, the present invention will be described in detail by way of examples, but the invention is not limited to these examples. Preparations Examples 1 to 12 and Comparative Examples 1 to 5 were prepared by using the compounding compositions shown in the following Table 1 as (A-1) to (A-5) of the carboxylic acid mixture (A) as an antioxidant. (8) 4_monooctyldiphenylamine, The cloud point reducing agent (CHHcq and 日本CACTUS S〇LVENT ρ·丨5〇 manufactured by Japan Energy Co., Ltd. as a diluent (9)) modulate and reduce the wear agent. (A-1)~(A-5) The composition is as shown in Table 2, and the dynamic viscosity measured by JIS κ 2283 crude oil and 5/product-dynamic viscosity test method* is shown in Table 2. (C-1) and (C-2) The composition and manufacture are as described in the following Production Examples 1 and 2. In addition, the cloud point and the flow point of these reducing wear agents were measured by JIS Κ 2269 "Pour point of crude oil and petroleum products 15 200907042 and the cloud point test method of petroleum products", and the results are shown in Table 1. Table 1. Reducing the composition of the abrasive, cloud point and pour point

Reduce the name of the wear agent. [Inside weight ratio] Cloud point rc] Flow point PC] Carboxylic acid mixture ΓΑ) Antioxidant (B) Cloud point reducer (C) Thinner (D) Example 1 S1 A-1 (99.6) (0.1) Cl (0.3) — -5 0.0 2 S2 A-1 (99.6) (0.1) — (0.3) 7 0.0 3 S3 A — 1 (99.6) — Cl (0.3) (0.1) -5 0.0 4 S4 A—1 (]00.0) — — — 7 0.0 5 S5 A-2(99.5) (0.1) C-2 (0.3) (0-1) -7 -7.5 6 S6 A — 2 (99.6) (0.1 ) — (0.3) 0 -7.5 7 S7 A-3 (99.6) (0.1) C —2(0.2) (0.1) -9 -12.5 8 S8 A-3 (99.6) (0.1) — (0.3) -5 - 12.5 9 S9 A—4(99.5) (Oi) Cl (0.3) (0.1) -2 2.5 10 S10 Α-4(99·6) (0.1) — (0.3) 8 2.5 11 S11 A-5 (99.5) ( 0.1) C-1 (0.3) (0.1) 0 5.0 12 S12 A-5 (99.6) (0.1) — (0.3) 9 5.0 Comparative Example 1 R1 A-6 (100.0) — — — 15 7.5 2 R2 A-6 (99.6) (0.1) C —2(0.3) — 11 7.5 3 R3 A-6 (99.6) (0.1) — (0_3) 15 7.5 4 R4 A-7 (100.0) — — — —13 —17.5 5 R5 A —7(99.6) (0.1) — (0.3) -13 -17.5

16 200907042 Table 2. Composition of the slow acid mixture and the dynamic viscosity under the machine 40 °c, the dynamic viscosity (mm~/s)

<Production Example of Production of Defecting Agent> Production of [(c-1)] Leaves: Two It benzenes are supplied with a mixing device, a heating device, and the temperature is up to the temperature of the second reactor. Under the nitrogen atmosphere, and raise the ',,〗, while stirring the toluene in the reactor, will? Mixture of (meth)propionic acid ketone vinegar of 50 & (methyl acetoacetate decanoic acid: tetradecyl methacrylate: hexadecyl methacrylate: octadecyl methacrylate = hydrazine: 10 : 40 : 40 weight ratio of the formulation), and 1.5 g of 2,2f-azobis 2,4-dimethylvaleronitrile dissolved in 2 g of toluene, respectively, from different drops The liquid funnel was completely dropped into the reactor at 2 hours and at the same speed. After the completion of the dropwise addition, polymerization was carried out at 85 ° C for 2 hours. After completion of the reaction, the polymer was obtained as a cloud point reducing agent (C-1) at 13 (under TC, toluene). Production Example 2 [Production of (C-2)] In addition to (meth)acrylic acid The alkyl ester mixture is set to f-based dodecyl acrylate: tetradecyl methacrylate: hexadecyl methacrylate: octadecyl methacrylate = 25: 25: 25: 25 by weight of the formulation, in addition to Production 17 200907042 The polymerization was carried out in the same manner as in Example 1 to obtain a polymer, which was used as a cloud point reducing agent (C-2). [Modulation and Evaluation of Fuel Oil Composition] Examples 13 to 24 and Comparative Examples 6 to 1 The fuel oil composition is prepared by dissolving 1 〇〇ppm of the reducing agent sj 〜S12 or R1 〜R5 in the fuel oil, and the diesel fuel oil has an initial boiling point (IBP) of 170. (:, 10% distillation temperature is 205 ° C, 50% distillation temperature is 3 〇 5. (:, 90 〇 / 〇 distillation temperature is 338t: distillation end point (EP) is 360 ° C distillation characteristics, and density ( 15. The enthalpy is 0.8320 g/cm ' -10 C. The amount of bismuth precipitated is 2.3%. The sulphur content of 1 〇ppm is equivalent to JIS No. 2 diesel fuel oil. The fuel oil composition was evaluated for abrasion resistance, water separation property, oxidation stability, and rust resistance. The test methods are as follows. The test results are shown in Table 3. &lt;Abrasion resistance&gt; JPI_5S_50_98 "Diesel-lubricity test method" HFRR (High Frequency Keciprocating Rig) 'Evaluate the size of the wear marks of the test ball. The device is manufactured by PCS INSTRUMENTS, UK. &lt;Water Separability&gt; JISK2776 The water solubility test method of the "Aviation Fuel Oil Test Method" is carried out. In a 100 ml sample; j: a sample of 8 〇mi in a measuring cylinder and 20 ml of a buffer solution are vibrated and mixed under predetermined conditions. The capacity change of the buffer portion 18 after standing at 200907042, the visual interface state and the separation state were evaluated according to the following criteria. Evaluation of interface state: 1 : Transparent, clean state lb: Small and transparent bubble The area is less than or equal to 50% of the interface, and there is no state of small pieces, lace-like or membranous substances. Evaluation points of separation state: (1): on two layers or samples The state of the upper part of the layer is completely free of emulsification or sedimentation. (2): In the same state as (1) except for the presence of small bubbles or water droplets in the sample layer, &lt;oxidative stability&gt; The ISOT test (Indiana Stirring Oxidation Test) for producing engine attachments was tested at a temperature of 110 ° C, a number of revolutions of 700 rpm, and a test time of 8 hours. The evaluation criteria are as follows. Evaluation points of oxidative stability: 1 : There is almost no deposit on the wall 2: only a little attachment is produced on the wall 3: some deposits are formed on the wall 4: the wall is covered with attachments <rust resistance> ; Use the rust proof test of JISK 2510 to determine the anti-pound property. 19 200907042 ipil Table 3 The name of the wear-reducing agent contained in the wear-resistant (the size of the wear marks) (μηι) Water-separable ("Oxidative stability Anti-town rust with or without rust degree Example 13 S1 290 0/ 1/(1) 1 Minor 14 S2 295 0/1/(1) 1 Minor 15 S3 300 0/1/(1) 1 Minor 16 S4 285 0/1/(1) 1 Minor 17 S5 305 0/1/(1) 1 has a slight 18 S6 290 0/1/(1) 1 has a slight 19 S7 290 0/1/(1) 1 has a slight 20 S8 290 0/1/(1) 1 has a slight 21 S9 305 0/1/(1) 1 Minor 22 S10 290 0/1/(1) 1 Minor 23 S11 300 0/1/(1) 1 Minor 24 S12 290 0/1/(1) 1 Yes Slight blank 600 0/1/(1) 1 Strength comparison Example 6 R1 360 0/lb/(2) 1 Minor 7 R2 375 0/lb/(2) 1 Minor 8 R3 360 0/lb/(2 1 1 Minor 9 R4 370 0/lb/(2) 3 Moderate 10 R5 380 0/lb/(2) 2 Capacity change/interface state/separation state with moderate (氺) buffer

[Effects of the Invention] According to Table 3, the fuel oil composition for a low sulfur fuel oil of the present invention and the fuel oil composition for reducing the wear agent for the low sulfur fuel oil are not only equivalent or equivalent to the prior additives. The above abrasion resistance is excellent, and also exhibits excellent performance in terms of workability, oxidation stability, and water separation property. [Simple diagram description] None [Main component symbol description] None 20

Claims (1)

200907042 X. Patent application scope: 1. A low-sulfur fuel oil reducing wear agent, characterized in that the reducing wear agent is a mixture of saturated carboxylic acid having a carbon number of 14 to 22 and an unsaturated carboxylic acid (A) (A) The dynamic viscosity at 40 ° C is 15 to 21 mm 2 / s. 2. The method for reducing the sulphur fuel oil according to the first aspect of the patent application, wherein the above (A) comprises: a saturated monobasic acid (al) having a carbon number of 14 to 22, and a carbon number of 14 to 22 The monounsaturated monocarboxylic acid (a2), the carbon number 14 to 22 bis unsaturated monocarboxylic acid (a3), and the carbon number 14 to 22 of the triunsaturated monobasic acid (a4), with the total weight of (A) To calculate, (al) is 1.5 to 8.0 weight percent, (a2) and (a3) are 84.0 to 96.5 weight percent, and (a4) is 2.0 to 8.0 weight percent. 3. The anti-wear agent for a low-sulfur fuel oil according to claim 2, wherein the saturated monocarboxylic acid (al) comprises palmitic acid and stearic acid in a weight ratio (pampic acid/stearic acid) It is 1/1 to 1/2.5. 4. The anti-wear agent for a low-sulfur fuel oil according to claim 2, wherein the monounsaturated monocarboxylic acid (a2) is oleic acid, and the di-unsaturated monocarboxylic acid (a3) is linseed oil. An acid, and the above tri-unsaturated monocarboxylic acid (a4) is linolenic acid. 5. The low-sulfur fuel oil reducing wear agent according to the invention of claim 2, wherein the reducing wear agent further comprises an antioxidant (B), a cloud point reducing agent (C), and a diluent (D). One or more of them are formed. 6. For the low-sulfur yellow fuel oil as described in claim 1, the reducing agent has a cloud point of C~-10 C, and the 200907042 point is 5°C~-12.5°. C, and the ignition point is 210 ° C or more. 7. A low-sulfur fuel oil composition, characterized by comprising a low-sulfur fuel oil, and a low-sulfur yellow fuel according to any one of claims 1 to 6 of 20 to 300 ppm. The oil-reducing wear agent, the low-sulfur fuel oil has an initial boiling point (IBP) of 140 to 200 ° C, a 10% distillation temperature of 170 to 260 ° C, and a 50% distillation temperature of 240 to 310 ° C. The 90% distillation temperature is 310 to 350 ° C, the distillation end point (EP) is 340 to 380 ° C, and the density (15 ° C) is 0.8200 to 0.8400 g/cm 3 , and the wax precipitation amount is -10 ° C. It is 1.0 to 4.0% and has a sulfur content of 1 to 500 ppm. 22 200907042 VII. Designation of representative representatives: (1) The representative representative of the case is: None. (2) The simple description of the symbol of the figure in this generation: Benefits 8. If there is a chemical formula in this case, please reveal the chemical formula that best shows the characteristics of the invention: