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Cylinder lubricating oil composition for scrubber-equipped crosshead diesel engines

A lubricating oil composition, crosshead type technology, applied in lubricating compositions, petroleum industry, air quality improvement, etc., can solve problems such as separation difficulties

Active Publication Date: 2017-08-01
JXTJ NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once these hydrocarbon-based substances are emulsified with water, the coal ash components in the exhaust gas will also be wrapped in the emulsified product to form scum, which accumulates on the upper part of the absorption liquid, so separation becomes difficult

Method used

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  • Cylinder lubricating oil composition for scrubber-equipped crosshead diesel engines
  • Cylinder lubricating oil composition for scrubber-equipped crosshead diesel engines
  • Cylinder lubricating oil composition for scrubber-equipped crosshead diesel engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～11、 comparative example 1～7

[0166] In the first embodiment of the lubricating oil composition, the lubricating oil composition according to the formula shown in Tables 1 and 2 was prepared, and a high-speed emulsification test was carried out. The results are shown in Tables 1 and 2. Wherein, in Tables 1 and 2, the amount of the base oil is the content based on the total amount of the base oil, and the amount of the additive is the content based on the total amount of the composition.

[0167] (commercially available cylinder oil)

[0168] Contains: 81% by mass of mineral oil-based base oil, R in the above formula (1) 1 Ca phenate-based detergents of alkyl or alkenyl groups with 12 carbon atoms, Ca sulfonate-based detergents (hydrocarbon groups with 20, 22, and 24 carbon atoms bonded to aromatic six-membered rings), the above formula (4) in R 4 Polybutenyl succinimide, alkyl diphenylamine (the number of carbon atoms in the alkyl group is 4 and 8), alkyl phenol, Si compound which is a polybutenyl group...

Embodiment 12～26、 comparative example 8～13

[0200] Regarding the second embodiment of the lubricating oil composition of the present invention, lubricating oil compositions of formulations shown in Tables 3 to 5 were prepared, and a high-speed emulsification test was implemented in the same manner as above. The results are shown in Tables 3-5. Wherein, in Tables 3-5, the amount of the base oil is the content based on the total amount of the base oil, and the amount of the additive is the content based on the total amount of the composition.

[0201] (base oil)

[0202] Base oil 1: Solvent refined base oil, 500N, 100°C kinematic viscosity 10.8mm 2 / s, saturated component content rate 62% by mass

[0203]Base oil 2: Solvent refined base oil, bright stock, kinematic viscosity at 100°C 31.8mm 2 / s, saturated component content rate 46% by mass

[0204] ((A1) ingredient)

[0205] (A1)-1: In the above formula (1), A is a thioether group, x = 1 to 2, m = 1 to 2 Ca phenate, base value 250 mgKOH / g, Ca content 8.9% by mass, m...

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Abstract

A cylinder lubricating oil composition for scrubber-equipped crosshead diesel engines, the composition comprising a base oil and (A) a metallic detergent, and having a base number of 15 to 125 mgKOH / g and a kinematic viscosity at 100 DEG C of 10 to 30 mm<2> / s, and satisfying requirement (i) or (ii). (i) Comprises 0.02 to 5.0 mass% of (B) a demulsifier. (ii) Comprises, as the component (A), (A1) a Ca phenate detergent and (A2) a metallic detergent other than the Ca phenate detergent, includes, as a nitrogen content, 0.015 mass% or less of (C-1')a succinimide or a borated derivative thereof, the succinimide having in the molecule at least one alkyl group or alkenyl group, or does not include the same, and has a Ph value represented by formula (1) of 20*10-3 or less. Ph value=CCa*2 / (rM*40.08) (1) (In formula (1), CCa is the calcium content (mass%) derived from the (A1) component, and rM is the metal ratio of the (A1) component.)

Description

technical field [0001] The present invention relates to a cylinder lubricating oil composition for a crosshead diesel engine, and particularly relates to a cylinder lubricating oil composition which can be suitably used for a crosshead diesel engine equipped with a scrubber. Background technique [0002] Crosshead diesel engines are widely used as main engines for large ships. Therefore, it can be said that among the influences on the environment caused by the shipping of ships, the part of the exhaust substances from the crosshead type diesel engine is very large. [0003] With regard to environmental issues, international attention has been increasing, and nitrogen oxides (NOx) and sulfur oxides (SOx) contained in exhaust gases emitted from ships into the atmosphere have also received increasing attention. The International Maritime Organization (International Maritime Organization: IMO) decided to restrict Tier III (third restriction) for NOx to take effect in the ECA se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M171/02C10M145/24C10M159/22C10M163/00C10M133/16C10N10/04C10N20/00C10N20/02C10N20/04C10N30/00C10N40/25
CPCC10M169/047C10M169/048C10M2207/028C10M2209/103C10M2203/1006C10M2207/262C10M2207/281C10M2207/289C10M2209/104C10M2209/105C10M2215/28C10M2219/046C10M2219/089C10N2030/041C10N2030/02C10N2030/24C10N2030/52C10N2040/252C10N2020/04C10M2209/108C10N2010/04C10N2060/14C10M133/16C10M145/24C10M159/22C10M163/00C10M171/02C10N2040/253C10M101/02C10M169/042C10M2207/024C10M2215/245
Inventor 竹岛茂树
Owner JXTJ NIPPON OIL & ENERGY CORP
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