WO2019138948A1 - Composition d'huile lubrifiante et huile de base - Google Patents

Composition d'huile lubrifiante et huile de base Download PDF

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Publication number
WO2019138948A1
WO2019138948A1 PCT/JP2018/048554 JP2018048554W WO2019138948A1 WO 2019138948 A1 WO2019138948 A1 WO 2019138948A1 JP 2018048554 W JP2018048554 W JP 2018048554W WO 2019138948 A1 WO2019138948 A1 WO 2019138948A1
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Prior art keywords
base oil
oil
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lubricating oil
base
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Japanese (ja)
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岳史 伊藤
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Eneos Corp
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JXTG Nippon Oil and Energy Corp
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Application filed by JXTG Nippon Oil and Energy Corp filed Critical JXTG Nippon Oil and Energy Corp
Priority to JP2019564658A priority Critical patent/JP7219232B2/ja
Priority to CN201880088704.5A priority patent/CN111727233A/zh
Publication of WO2019138948A1 publication Critical patent/WO2019138948A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated

Definitions

  • the present invention relates to lubricating oil compositions and base oils.
  • Priority is claimed on Japanese Patent Application No. 2018-001962, filed on Jan. 10, 2018, the content of which is incorporated herein by reference.
  • Lubricants are oils used for lubrication and are used to lubricate many mechanical devices. By applying this lubricating oil to the moving parts of the machine, the friction between adjacent solids is reduced, and the generation of frictional heat and wear are suppressed. Thereby, the mechanical device can be kept operating stably.
  • various additives are added to a base oil (base oil).
  • Lubricants have the problem of oxidative degradation during use and storage.
  • antioxidants are conventionally added to lubricating oils as additives.
  • Phenolic compounds such as DBPC (2,6-di-tert-butyl-p-cresol) are widely used as antioxidants.
  • a base oil a mineral oil or synthetic oil having specific properties is adopted, and a lubricating oil composition formed by blending an amine antioxidant with this base oil has been proposed (see Patent Documents 1 and 2). .
  • JP-A-7-228882 Japanese Patent Application Laid-Open No. 7-258677
  • the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a lubricating oil composition whose oxidation stability has been enhanced to prolong its life and a base oil used therefor. .
  • a first aspect of the present invention is a lubricating oil composition
  • a lubricating oil composition comprising a base oil and an antioxidant, wherein the base oil has an absorbance at a wavelength of 274 nm of 0.02 or more and 3.0 or less.
  • Lubricating oil composition is a lubricating oil composition.
  • the base oil preferably further has a sulfur content of 0.05% by mass or less.
  • the base oil further has a content ratio (% CA) of an aromatic hydrocarbon component of 1.0 or less.
  • the base oil preferably further has a viscosity index of 95 or more and 130 or less.
  • the base oil preferably further has a kinematic viscosity of 40 mm 2 / sec or more and 100 mm 2 / sec or less.
  • the antioxidant is preferably an aromatic amine antioxidant.
  • the lubricating oil composition according to the first aspect may further contain a rust inhibitor.
  • the lubricating oil composition according to the first aspect is suitable as a turbine oil for power generation.
  • a second aspect of the present invention is a base oil characterized in that the absorbance at a wavelength of 274 nm is 0.02 or more and 3.0 or less.
  • the content of sulfur is preferably 0.05% by mass or less.
  • the content ratio (% CA) of the aromatic hydrocarbon component is further preferably 1.0 or less.
  • the base oil according to the second aspect preferably further has a viscosity index of 95 or more and 130 or less.
  • the base oil according to the second aspect preferably further has a kinematic viscosity of 40 mm 2 / sec or more and 100 mm 2 / sec or less.
  • the base oil in this embodiment has a specific absorbance.
  • the base oil include those containing a mineral oil or a synthetic oil or a mixture of these oils.
  • mineral oils are preferred, and among these, paraffinic mineral oils are more preferred.
  • Refined base oils such as Group 3 (Classification of the American Petroleum Institute (API)) are widely used in high performance lubricating oils.
  • API American Petroleum Institute
  • the lubricating oil composition of the present embodiment is useful in that the range of feedstock selectivity is broadened.
  • the base oil in this embodiment has a specific absorbance, that is, an absorbance at a wavelength of 274 nm of 0.02 or more and 3.0 or less.
  • the lower limit of the absorbance is preferably 0.2 or more, 0.3
  • the upper limit value of the absorbance is preferably 2.8 or less, more preferably 1.5 or less, and still more preferably 0.95 or less.
  • the oxidation stability of the lubricating oil composition is enhanced, and the acid value serving as an indicator of the extent of the oxidative deterioration is further reduced for a long time (for example, 5000 The time can be maintained at less than 0.40 mg KOH / g), and a longer life can be achieved.
  • the base oil in this embodiment has a specific absorbance, that is, an absorbance at a wavelength of 274 nm of 0.02 to 3.0, and as another example, the lower limit of the absorbance is preferably 0.2 or more. 0.3 or more is more preferable, 0.8 or more is more preferable, 2.8 or less is preferable, 2.0 or less is more preferable, and 1.5 or less is more preferable. If the predetermined absorbance in the base oil is within the above range, the oxidation stability of the lubricating oil composition is enhanced, and the acid value serving as an index of the degree of oxidative deterioration progress is a reference value of 2.0 mg KOH / g The time which is kept below can be made longer, that is, the life can be extended.
  • the “base oil absorbance” refers to the absorbance at a wavelength of 274 nm, which is measured by the method according to JIS K 0115 (2014).
  • “Absorbance of base oil” includes both absorbance obtained by directly measuring base oil as a raw material and absorbance obtained by measuring a base oil separated from a lubricating oil composition.
  • the separation method of separating the base oil from the lubricating oil composition generally includes a method of extracting the lubricating oil composition using a polar solvent such as methanol. By extracting the lubricating oil composition using a polar solvent, it is possible to separate the base oil by separating the additives and the like.
  • the content of sulfur in the base oil in the present embodiment is preferably 0.05% by mass or less, more preferably 0.03% by mass or less, with respect to the total amount (100% by mass) of the base oil. % Or less is more preferable, 0.005% by mass or less is particularly preferable, 0.001% by mass or less is the most preferable, 0.0001% by mass or more is preferable, and 0.0002% by mass or more is more preferable. If the content ratio of sulfur in the base oil is equal to or less than the upper limit value of the preferable range described above, the risk of sulfur corrosion is further reduced, and an adverse effect on the oxidation stability is also suppressed.
  • “content ratio of sulfur content in base oil” can be measured by a method according to JIS K 2541-6 (2013).
  • 1.0 or less is preferable, as for the content rate (% CA) of the aromatic hydrocarbon component in the base oil in this embodiment, 0.7 or less is more preferable, 0.6 or less is more preferable, and 0.5 or less Particularly preferred. If the content ratio of the aromatic hydrocarbon component in the base oil is equal to or less than the upper limit value of the preferable range, oxidation deterioration with the passage of time is easily suppressed. In the lubricating oil composition of the present embodiment, the lower the content of the aromatic hydrocarbon component in the base oil, the better in terms of prolonging the life.
  • the “content ratio of the aromatic hydrocarbon component in the base oil” means the carbon number of the aromatic hydrocarbon component among all the components constituting the base oil relative to the total carbon number of all components constituting the base oil, Say the percentage of In the present invention, "the content ratio of the aromatic hydrocarbon component in the base oil” can be measured by the method according to ASTM D3238 (2017).
  • the viscosity index of the base oil in the present embodiment is preferably 130 or less, more preferably 128 or less, still more preferably 125 or less, and particularly preferably 120 or less.
  • the lower limit of the viscosity index of the base oil is preferably 95 or more, more preferably 97 or more, still more preferably 100 or more, and particularly preferably 104 or more. If the viscosity index of the said base oil is more than the lower limit of the said preferable range, the viscosity change by temperature will be easy to be suppressed, and if it is below the upper limit of the said preferable range, it will contribute to oxidation stability. A certain amount of components is secured, and oxidation deterioration with time is easily suppressed.
  • “the viscosity index of the base oil” can be measured by a method in accordance with JIS K 2283 (2000).
  • the lower limit of the 40 ° C. kinematic viscosity of the base oil is preferably 20 mm 2 / s or more, more preferably 25 mm 2 / s or more, and still more preferably 30 mm 2 / s or more. If the kinematic viscosity of the base oil at 40 ° C.
  • “40 ° C. kinematic viscosity of base oil” indicates a kinematic viscosity at a temperature of 40 ° C. measured by a method in accordance with JIS K 2283 (2000).
  • the base oil used in the present embodiment has an absorbance at a wavelength of 274 nm of 0.02 or more and 3.0 or less, and among those having such an absorbance, the content of sulfur is further 0.05% by mass or less, the aroma It is particularly preferable from the viewpoint of the oxidation stability and the width of the raw material selectivity to use one having a content of the group hydrocarbon component (% CA) of 1.0 or less and a viscosity index of 95 or more and 130 or less.
  • % CA group hydrocarbon component
  • the content of the base oil in the lubricating oil composition is preferably 90% by mass or more, more preferably 95% by mass or more, and still more preferably 96% by mass or more based on the total amount (100% by mass) of the lubricating oil composition. On the other hand, 99.9 mass% or less is preferable and 99.8 mass% or less is more preferable.
  • the antioxidant in the present embodiment is not particularly limited, and examples thereof include aromatic amine antioxidants, phenol antioxidants, sulfur antioxidants, sulfur and phosphorus antioxidants, and other antioxidants.
  • aromatic amine antioxidant examples include phenyl- ⁇ -naphthylamine, alkylated phenyl- ⁇ -naphthylamine, diphenylamine, alkylated diphenylamine and phenothiazine.
  • alkylated diphenylamine examples include p, p'-dioctyl diphenylamine and the like.
  • phenolic antioxidants examples include 2,6-di-tert-butyl-p-cresol, 2,6-di-tert-butyl-4-ethylphenol, 4,4′-methylenebis (2,6-di- tert-Butylphenol), 4,4'-methylenebis (6-tert-butyl-o-cresol) and the like.
  • sulfur-based antioxidants include dibenzyl disulfide, dialkyl sulfides, sulfurized fats and oils, and the like.
  • sulfur and phosphorus antioxidants include zinc dialkyl dithiophosphate and zinc diallyl dithiophosphate.
  • Other antioxidants include N, N'-disalicylidene-1,2-diaminopropane, benzotriazole, 2 (n-dodecyldithio) benzimidazole, copper-based antioxidants, molybdenum-based antioxidants and the like.
  • the lubricating oil composition of the present embodiment only one antioxidant may be used, or two or more antioxidants may be used in combination.
  • the antioxidant is preferably at least one selected from the group consisting of an aromatic amine antioxidant and a phenolic antioxidant because oxidation stability is more easily improved, and among these, lubricating oil compositions are preferably used. It is particularly preferable to include at least an aromatic amine-based antioxidant because it is easy to achieve long life.
  • the content of the antioxidant in the lubricating oil composition is appropriately determined according to the type of the base oil or the antioxidant, and, for example, 0.1 mass based on the total amount (100 mass%) of the lubricating oil composition % Or more is preferable, 0.2 mass% or more is more preferable, 0.3 mass% or more is more preferable, 5 mass% or less is preferable, and 3 mass% or less is more preferable. If the content of the antioxidant is at least the lower limit value of the above-mentioned preferable range, the oxidation deterioration is less likely to occur, while, even if the upper limit value of the above-mentioned preferable range is exceeded, the oxidation prevention corresponding to the addition amount It becomes difficult to obtain the improvement effect.
  • rust inhibitor rust inhibitor
  • antifoam agent antifoam agent
  • friction modifier e.g., a friction modifier
  • viscosity index improver e.g., a metal Deactivators
  • pour point depressants e.g., pour point depressants
  • demulsifiers e.g., a metal detergent
  • ashless dispersants e.g., a metal detergent
  • antiwear agents or extreme pressure agents e.g., extreme pressure agents, corrosion inhibitors, etc.
  • the lubricating oil composition of the present embodiment may further contain a rust inhibitor (rust inhibitor) in addition to the base oil and the antioxidant.
  • a rust inhibitor for example, aliphatic amines, organic sulfonic acid metal salts, organic phosphoric acid metal salts, alkyl succinic acid esters, alkenyl succinic acid esters, succinic acid imides, sarcosinic acid derivatives, alkyl phenyl fatty acids, many And polyhydric alcohol esters.
  • the content of the rust inhibitor in the lubricating oil composition is appropriately determined according to the type of the base oil or the rust inhibitor, and is, for example, 0.01 mass based on the total amount (100% by mass) of the lubricating oil composition.
  • % Or more is preferable, 0.02 mass% or more is more preferable, 0.03 mass% or more is more preferable, 1 mass% or less is preferable, and 0.5 mass% or less is more preferable. If the content of the rust inhibitor is at least the lower limit value of the above-mentioned preferable range, an appropriate antirust effect is easily obtained, while if it exceeds the upper limit value of the above-mentioned preferable range, the oxidation stability is adversely affected. Become to exert.
  • a base oil having a specific absorbance and an antioxidant are combined.
  • the base oil contains a polycyclic aromatic hydrocarbon component having an absorbance at a wavelength of 274 nm of 0.02 or more and 3.0 or less, that is, having an absorption at a wavelength of 274 nm.
  • the determination of the polycyclic aromatic hydrocarbon component having absorption at a wavelength of 274 nm in such a base oil is difficult due to its small amount.
  • the oxidative stability is enhanced by the synergistic action of the polycyclic aromatic hydrocarbon component in a trace amount having a specific absorbance and the antioxidant. It is presumed that the life can be extended.
  • the lubricating oil composition of the present embodiment stable operation of a turbine or the like is enabled.
  • the lubricating oil composition is useful as various turbine oils.
  • the lubricating oil composition is suitable for use as a lubricant for infrastructure applications, and particularly suitable for use as a turbine oil for power generation, because the oxidative stability is maintained for a long time.
  • the base oil of the present embodiment has an absorbance of 0.02 or more and 3.0 or less at a wavelength of 274 nm.
  • the base oil having a content of sulfur of 0.05% by mass or less, and the content (% CA) of the content of an aromatic hydrocarbon component are 1. 0 or less is the base oil, the base oil viscosity index of 95 or more 130 or less, or 40 ° C.
  • kinematic viscosity of 20 mm 2 / sec or more 100 mm 2 / sec or less is base oil oxidation stability and material selectivity of the width It is preferable from the point of The detailed description about the said base oil is the same as ⁇ base oil> mentioned above.
  • the base oil of the present embodiment is solvent-depleted, solvent-extracted, hydrotreated, solvent dewaxed, catalytic dewaxed with respect to a fraction obtained by performing at least one of atmospheric distillation and vacuum distillation of crude oil. It can be obtained by combining and applying processes such as isomerization dewaxing, hydrorefining, acid washing and post-distillation. For example, by appropriately controlling the reaction temperature, the hydrogen pressure, the hydrogen / oil ratio, or the liquid hourly space at the time of the hydrotreating in plant production, the proportion of the trace sulfur and aromatic components of the base oil Can be adjusted.
  • the reaction temperature is preferably 270 ° C. to 500 ° C. during the hydrotreating.
  • Hydrogen pressure is preferably 5 MPa to 30 MPa, more preferably 10 MPa to 22 MPa;
  • hydrogen / oil ratio is preferably 10 NL / L to 2000 NL / L, more preferably 300 NL / L. L above 1000 NL / L or less;
  • the base oil of the present embodiment described above has a specific absorbance. Because of this, the base oil exhibits good oxidative stability and is suitable for long-term use or storage.
  • the base oils are particularly suitable for lubricating oils for infrastructure applications.
  • the absorbance at a wavelength of 274 nm, the content ratio of sulfur, the content ratio of an aromatic hydrocarbon component, the viscosity index, and the 40 ° C. kinematic viscosity of the base oil used in this example were measured by the methods described below.
  • the acid value was measured by the method shown below about a lubricating oil composition.
  • the lubricating oil composition was subjected to an accelerated deterioration test according to ASTM D 7873 (2013 e 2), and the acid value (mg KOH / g) of the accelerated deteriorated oil was measured according to JIS K 2501 (2003). Specifically, the lubricating oil composition is heated at 120 ° C. while blowing oxygen at a flow rate of 3.0 L / h in the presence of a copper and iron coil catalyst, and after a certain time, a small amount (20 g) of oil (20 g) Accelerated deterioration oil was sampled, and the acid value of this accelerated deterioration oil was measured.
  • the acid number 2 is an evaluation standard value when accelerated deterioration is made according to the TOST test (ISO 4263-1), which is defined by the quality regulations of turbine oil product standards such as ASTM D4304 or ISO 8068. .0 mg KOH / g was applied. The accelerated deterioration test was continued until it exceeded 2.0 mg KOH / g.
  • the base oils 1 to 8 and the base oils 10 to 11 used in the present embodiment are fractions obtained by performing at least one of atmospheric distillation and vacuum distillation on crude oil (paraffin-based crude oil or mixed base crude oil). On the other hand, it was obtained by performing a series of treatments such as solvent deasphalting, solvent extraction, hydrotreating, solvent dewaxing, catalytic dewaxing, isomerization dewaxing, hydrorefining, acid washing and post-distillation.
  • Each base oil was manufactured by appropriately controlling the reaction temperature, the hydrogen pressure, the hydrogen / oil ratio, and the liquid hourly space at the time of the hydrotreating in the plant production.
  • the base oil 9 used in the present example was manufactured based on GTL wax using natural gas as a raw material.
  • Base oil 1 The Middle East crude oil is subjected to an atmospheric distillation apparatus, and the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrocracking apparatus (reaction temperature 340 to 400 ° C., hydrogen pressure 10 to 15 MPa , The hydrogen / oil ratio is 450 to 650 NL / L, the liquid space velocity is controlled in the range of 1.0 to 2.0 h.sup.- 1 , and the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • a hydrocracking apparatus reaction temperature 340 to 400 ° C., hydrogen pressure 10 to 15 MPa .
  • the hydrogen / oil ratio is 450 to 650 NL / L
  • the liquid space velocity is controlled in the range of 1.0 to 2.0 h.sup.- 1
  • the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • an isomerization dewaxing unit (reaction temperature: 290 to 350 ° C., hydrogen pressure: 11 to 15 MPa, hydrogen / oil ratio: 400 to 600 NL / L, liquid space velocity: in the range of 1.0 to 2.0 h -1
  • the de-waxed oil obtained is subjected to distillation to remove the fuel fraction, and the hydrorefining apparatus (reaction temperature 270 to 330 ° C., hydrogen pressure 6 to 10 MPa, hydrogen / oil ratio 900 to 1500 NL / L) , range of the liquid hourly space velocity 1.0 ⁇ 2.0h -1 Subjected to the control) at the inner, subjected the resulting hydrotreated oil to a distillation apparatus, 40 ° C. kinematic viscosity was obtained as a fraction of 31.6mm 2 / s.
  • Base oil 2 The Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrotreating apparatus (reaction temperature 280 to 330 ° C., hydrogen pressure 17 to 22 MPa And a hydrogen / oil ratio of 550 to 850 NL / L, and the liquid space velocity is controlled in the range of 0.5 to 1.0 h.sup.- 1 , and the obtained hydrotreated oil is subjected to solvent dewaxing (solvent is methyl ethyl ketone).
  • solvent dewaxing solvent is methyl ethyl ketone
  • Base oil 3 Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrorefining apparatus (reaction temperature 260 to 330 ° C., hydrogen pressure 6 to 10 MPa, A hydrogen / oil ratio of 700 to 1,300 NL / L and a liquid space velocity of 1.0 to 2.0 h -1 are controlled, and the resulting hydrorefined oil is subjected to a hydrocracker (reaction temperature: 350 to The hydrocracked oil obtained at 400 ° C., a hydrogen pressure of 10 to 15 MPa, a hydrogen / oil ratio of 600 to 1000 NL / L, and a liquid hourly space velocity of 1.2 to 2.4 h ⁇ 1.
  • the fuel fraction is removed by distillation, and the mixture is then subjected to a vacuum distillation apparatus, and the resulting vacuum distillation fraction (viscosity grade VG46 equivalent fraction) is isomerized and dewaxed (reaction temperature 280 to 340 ° C., hydrogen pressure 11 ⁇ 15MPa, hydrogen / oil ratio 450 650NL / L, the liquid subjected space velocity in the control) in the range of 1.0 ⁇ 2.0 h -1, hydrogenation of the dewaxed oil obtained purifier (reaction temperature 280 ⁇ 340 ° C., the hydrogen pressure 7 ⁇ 11 MPa Hydrogen / oil ratio of 800-1300 NL / L, control of liquid space velocity in the range of 1.0-2.0 h.sup.- 1 ), and removing the fuel fraction by distillation of the resulting hydrogenated refined oil
  • the resultant was obtained as a fraction having a kinematic viscosity of 47.5 mm 2 / s at 40 ° C.
  • Base oil 4 The Middle East crude oil is subjected to an atmospheric distillation apparatus, and the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrocracking apparatus (reaction temperature 340 to 400 ° C., hydrogen pressure 10 to 15 MPa , The hydrogen / oil ratio is 450 to 650 NL / L, the liquid space velocity is controlled in the range of 1.0 to 2.0 h.sup.- 1 , and the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • a hydrocracking apparatus reaction temperature 340 to 400 ° C., hydrogen pressure 10 to 15 MPa .
  • the hydrogen / oil ratio is 450 to 650 NL / L
  • the liquid space velocity is controlled in the range of 1.0 to 2.0 h.sup.- 1
  • the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • an isomerization dewaxing unit (reaction temperature: 290 to 350 ° C., hydrogen pressure: 11 to 15 MPa, hydrogen / oil ratio: 400 to 600 NL / L, liquid space velocity: in the range of 1.0 to 2.0 h -1
  • the de-waxed oil obtained is subjected to distillation to remove the fuel fraction, and the hydrorefining apparatus (reaction temperature 270 to 330 ° C., hydrogen pressure 6 to 10 MPa, hydrogen / oil ratio 900 to 1500 NL / L) , range of the liquid hourly space velocity 1.0 ⁇ 2.0h -1 Subjected to the control) at the inner, subjected the resulting hydrotreated oil to a distillation apparatus, 40 ° C. kinematic viscosity was obtained as a fraction of 88.3mm 2 / s.
  • the Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrorefining apparatus (reaction temperature 270 to 340 ° C., hydrogen pressure 7 to 12 MPa, A hydrogen / oil ratio of 900 to 1,400 NL / L and a liquid space velocity of 1.0 to 2.0 h -1 are controlled, and the resulting hydrorefined oil is subjected to a hydrocracker (reaction temperature: 360 to Hydrocracked oil obtained at 420 ° C., hydrogen pressure of 11 to 16 MPa, hydrogen / oil ratio of 700 to 1200 NL / L, and control of liquid hourly space velocity in the range of 0.8 to 1.8 h ⁇ 1 )
  • the fuel fraction is removed by distillation, and the mixture is then subjected to a vacuum distillation apparatus, and the obtained vacuum distillation fraction (viscosity grade VG32 equivalent fraction) is isomerized
  • Base oil 6 The Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrocracking apparatus (reaction temperature 280 to 340 ° C., hydrogen pressure 7 to 12 MPa , The hydrogen / oil ratio is 400 to 700 NL / L, and the liquid space velocity is controlled within the range of 1.5 to 2.5 h.sup.- 1 , and the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • a hydrocracking apparatus reaction temperature 280 to 340 ° C., hydrogen pressure 7 to 12 MPa .
  • the hydrogen / oil ratio is 400 to 700 NL / L
  • the liquid space velocity is controlled within the range of 1.5 to 2.5 h.sup.- 1
  • the resulting hydrocracked oil is distilled to remove the fuel fraction.
  • an isomerization dewaxing unit (reaction temperature: 290 to 350 ° C, hydrogen pressure: 7 to 10 MPa, hydrogen / oil ratio: 400 to 600 NL / L, liquid space velocity within the range of 1.5 to 2.5 h -1
  • the dewaxed oil obtained is subjected to distillation to remove the fuel fraction, and the hydrorefining apparatus (reaction temperature 250 to 310 ° C., hydrogen pressure 5 to 10 MPa, hydrogen / oil ratio 600 to 1000 NL / L) the liquid hourly space velocity in the range of 1.5 ⁇ 2.5 h -1
  • Subjected to the control subjecting the resulting hydrotreated oil to a distillation apparatus, 40 ° C. kinematic viscosity was obtained as a fraction of 29.9 mm 2 / s.
  • the Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrocracking apparatus (reaction temperature 380 to 430 ° C., hydrogen pressure 13 to 17 MPa Hydrogen / oil ratio of 1000-1600 NL / L, control of liquid space velocity in the range of 0.6-1.6 h -1 ), and removing the fuel fraction by distillation of the obtained hydrocracked oil After that, an isomerization dewaxing unit (reaction temperature 300 to 350 ° C, hydrogen pressure 11 to 16MPa, hydrogen / oil ratio 1000 to 1600NL / L, liquid space velocity within the range of 0.6 to 1.6h -1 The dewaxed oil obtained is subjected to distillation to remove the fuel fraction, and the hydrorefining apparatus (reaction temperature 290 to 350 ° C., hydrogen pressure 8 to 12 MPa, hydrogen / oil ratio 1000 to 1600 NL / L)
  • Base oil 8 The Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrocracking apparatus (reaction temperature 370 to 420 ° C., hydrogen pressure 12 to 16 MPa Hydrogen / oil ratio of 800 to 1,500 NL / L, and control of the liquid space velocity in the range of 0.8 to 1.8 h.sup.- 1 ), and removing the fuel fraction by distillation of the obtained hydrocracked oil After that, an isomerization dewaxing unit (reaction temperature: 290 to 350 ° C., hydrogen pressure: 11 to 15 MPa, hydrogen / oil ratio: 800 to 1,500 NL / L, liquid space velocity within the range of 0.8 to 1.8 h -1 The de-waxed oil obtained is subjected to distillation to remove the fuel fraction, and the hydrorefining apparatus (reaction temperature 290 to 350 ° C., hydrogen pressure 8 to 12
  • Base oil 9 An isomerization dewaxing unit (isomerization reaction temperature 300 to 320 ° C., hydrogen pressure 12 to 16 MPa, hydrogen) containing GTL wax (containing 40% by mass of normal paraffin of boiling range 480 to 570 ° C.) using natural gas as raw material (Controlled at a liquid space velocity of 1.2 to 1.6 h.sup.- 1 ), the obtained dewaxed oil is subjected to a distillation apparatus, and the kinematic viscosity at 40.degree. Obtained as a fraction of 5 mm 2 / s.
  • Base oil 10 The Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the vacuum distillation fraction obtained is subjected to a hydrorefining apparatus (reaction temperature 220 to 280 ° C., hydrogen pressure 4 to 7 MPa, A hydrogen / oil ratio of 400 to 650 NL / L and a liquid hourly space velocity of 1.5 to 2.5 h -1 are controlled, and the resulting hydrorefined oil is subjected to a hydrogenolysis unit (reaction temperature: 330 to Hydrocracked oil obtained at 380 ° C., a hydrogen pressure of 8 to 13 MPa, a hydrogen / oil ratio of 400 to 800 NL / L, and a liquid hourly space velocity of 1.5 to 2.5 h ⁇ 1.
  • the mixture is subjected to a vacuum distillation apparatus, and the obtained vacuum distillation fraction (viscosity grade VG22 equivalent fraction) is isomerized and dewaxed (reaction temperature 260 to 320 ° C., hydrogen pressure 7) ⁇ 11MPa, hydrogen / oil ratio 400 ⁇ 650N / L, the liquid subjected space velocity in the control) in the range of 1.5 ⁇ 2.5 h -1, hydrotreater dewaxed oil obtained (reaction temperature 250 ⁇ 300 ° C., the hydrogen pressure 4 ⁇ 7 MPa,
  • the hydrogen / oil ratio is 500 to 1000 NL / L
  • the liquid space velocity is controlled in the range of 1.5 to 2.5 h.sup.- 1
  • the resulting hydrogenated refined oil is distilled to remove the fuel fraction.
  • the resultant was obtained as a fraction having a kinematic viscosity of 20.4 mm 2 / s at 40 ° C.
  • Base oil 11 Middle East crude oil is subjected to an atmospheric distillation apparatus, the obtained atmospheric distillation residue is subjected to a vacuum distillation apparatus, and the obtained vacuum distillation fraction corresponding to 150 N is subjected to a furfural extraction apparatus (head temperature 110 to 130 ° C., bottom temperature Subjecting the raffinate fraction to a hydrorefining unit (reaction temperature 270-330 ° C., hydrogen pressure 4 to 6 MPa, hydrogen / The resulting hydrorefined oil is subjected to a solvent dewaxing apparatus (a mixed solvent of methyl ethyl ketone and toluene) at an oil ratio of 1500 to 2000 NL / L and a liquid space velocity controlled to a range of 1.0 to 2.0 h -1.
  • a solvent dewaxing apparatus a mixed solvent of methyl ethyl ketone and toluene
  • the lubricating oil compositions of the respective examples were produced by adding and mixing an antioxidant and a rust inhibitor to each of the base oils described above.
  • base oils 1 to 10 were used respectively.
  • As an antioxidant Irganox L06 manufactured by BASF and Arganox L57 manufactured by BASF, both of which are aromatic amine antioxidants, were used.
  • As a rust inhibitor Irgacore L12 manufactured by BASF Corp. was used.
  • the lubricating oil compositions of Examples 1 to 10 were prepared by adding Irganox L06 (0.3% by mass), Irganox L57 (0.2% by mass), and Irgacore L12 (to each base oil of the base oils 1 to 10). 0.1% by mass) was added and mixed.
  • the above parenthesis indicates the content of each component in the lubricating oil composition, and means the proportion of the total amount (100% by mass) of the composition.
  • Comparative example 1 A lubricating oil composition of Comparative Example 1 was prepared in the same manner as in Examples 1 to 10, except that the base oil was changed to base oil 11.
  • base oils base oil 1, base oil 3 and base oil 5 were used respectively.
  • antioxidant ANTAGE BHT manufactured by Kawaguchi Chemical Industry Co., Ltd., which is a phenolic antioxidant, was used.
  • rust inhibitor Irgacore L12 manufactured by BASF Corp. was used.
  • the lubricating oil compositions of Examples 11 to 13 contained ANTAGE BHT (1.0% by mass) and Irgacore L12 (0.1%) in the respective base oils (remaining parts) of base oil 1, base oil 3 and base oil 5. It prepared by adding and mixing with mass%).
  • the above parenthesis indicates the content of each component in the lubricating oil composition, and means the proportion of the total amount (100% by mass) of the composition.
  • Comparative example 2 A lubricating oil composition of Comparative Example 2 was prepared in the same manner as in Examples 11 to 13 except that the base oil was changed to base oil 11.
  • the lubricating oil compositions of Examples 1 to 3 to which the present invention is applied have an acid value of less than 2.0 mg KOH / g for an elapsed time of 6000 h. Was kept.
  • the lubricating oil composition of Example 4 to which the present invention was applied continued to be maintained for an elapsed time of 7000 hours or more and an acid value of less than 2.0 mg KOH / g.
  • an acid value of less than 2.0 mg KOH / g was maintained for an elapsed time of 2000 h.
  • Example 10 For the lubricating oil composition of Example 10 containing a base oil within the scope of the present invention, an acid value of less than 2.0 mg KOH / g was maintained for an elapsed time of 3000 h.
  • the elapsed time during which the acid value of less than 2.0 mg KOH / g was maintained was up to 1000 h.
  • the lubricating oil compositions of Examples 11 and 12 to which the present invention is applied maintain an acid value of less than 2.0 mg KOH / g for an elapsed time of 2000 h.
  • an acid value of less than 2.0 mg KOH / g was maintained until an elapsed time of 750 h.
  • the elapsed time during which the acid value of less than 2.0 mg KOH / g was maintained was up to 500 h.
  • the lubricating oil composition to which the present invention is applied has a higher oxidation stability and a longer life.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

Une composition d'huile lubrifiante comprenant une huile de base et un antioxydant, une huile de base ayant une absorbance de 0,02 à 3,0, inclus, à une longueur d'onde de 274 nm est utilisée. En outre, l'un ayant un rapport de teneur en fraction de soufre de 0,05 % en masse ou moins, un rapport de teneur en composant hydrocarbure aromatique (% CA) de 1,0 ou moins, et un indice de viscosité de 95 à 130, inclus, est sélectionné en tant qu'huile de base. Selon une telle composition d'huile lubrifiante, la stabilité d'oxydation peut être améliorée et une durée de vie plus longue peut être obtenue.
PCT/JP2018/048554 2018-01-10 2018-12-28 Composition d'huile lubrifiante et huile de base Ceased WO2019138948A1 (fr)

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JP2019564658A JP7219232B2 (ja) 2018-01-10 2018-12-28 潤滑油組成物及び基油
CN201880088704.5A CN111727233A (zh) 2018-01-10 2018-12-28 润滑油组合物及基础油

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