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lubricating composition

A technology of lubricating composition and weight, applied in the direction of lubricating composition, additives, petroleum industry, etc., can solve the problems of increased wear of cylinder liner

Active Publication Date: 2021-07-09
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the base number is higher than required, there is a risk that unused base reserves can lead to increased wear on the cylinder liner by forming deposits on the piston platforms and in the annular grooves

Method used

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[0040] lubricating oil composition

[0041] Formulate different lubricating compositions. The components in the composition are described as follows:

[0042] Base Oil: This is a blend of two Group I base oils (HVI 160S and HVI 650, both available from Shell).

[0043] Detergent 1: Calcium long chain alkaryl sulfonate detergent (OLOA 246SX, available from Oronite)

[0044] Detergent 2: Calcium long chain alkaryl sulfonate detergent (OLOA 249SX, available from Oronite)

[0045] Detergent 3: calcium alkylphenate detergent (OLOA 219, available from Oronite)

[0046] Detergent 4: Highly overbased calcium alkyl salicylate with antifoam (M7125, available from Infineum)

[0047] Antioxidant: Butylated / octylated diphenylamine (Irganox L57 from BASF)

[0048] Dispersant 1: polyolefin polyamine succinimide (OLOA 11001, available from Oronite)

[0049] Dispersant 2: Amide / amine dispersant (C9201 from Infineum)

[0050] Polyisobutylene: Indopol H-1200, available from Ineos

[00...

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Abstract

The present invention provides a lubricating composition having a base number (as measured according to ISO 3771) of 30 mg KOH / g or less. The lubricating composition is suitable for use in two-stroke crosshead diesel engines and exhibits good deposit forming properties and good antiwear properties.

Description

technical field [0001] The present invention relates to a lubricating composition, in particular to a lubricating composition for use in internal combustion engines which can operate under sustained high load conditions, such as marine diesel engines and power applications. More specifically, the present invention relates to a lubricating composition useful in two-stroke crosshead diesel engines, especially for slow or medium speed applications. Background technique [0002] The International Convention for the Prevention of Pollution from Ships (MARPOL) sets out environmental regulations for ships. Annex VI sets out the "Regulations for the Prevention of Air Pollution from Ships" and includes emission limits. Since the beginning of 2015, emissions of sulfur oxides must be below 0.10% by weight sulfur equivalent in so-called "emission control areas". This can be achieved through exhaust gas treatment or by limiting the sulfur content of the fuel used by ships. [0003] Ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M165/00
CPCC10M165/00C10M2203/1006C10M2205/026C10M2207/027C10M2207/028C10M2207/262C10M2215/064C10M2215/28C10M2219/089C10N2030/04C10N2030/02C10N2030/52C10N2030/06C10N2040/26C10N2040/252C10N2020/04C10N2010/04
Inventor J·L·加西亚S·格利
Owner SHELL INT RES MAATSCHAPPIJ BV