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Lubricating oil compositions comprising fischer-tropsch derived base oils

A lubricating oil composition and derivative-based technology, applied in lubricating compositions, base materials, petroleum industry, etc., can solve expensive and undesirable problems, achieve high flash point, improve smoke index, and good low-temperature performance

Inactive Publication Date: 2014-01-29
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Examples of smoke reducing additives include those containing metals, but they may be undesirable from an environmental standpoint
Other examples include synthetic bases, but they can be expensive

Method used

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  • Lubricating oil compositions comprising fischer-tropsch derived base oils

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example A

[0057] In order to determine the effect of GTL base oils on exhaust plugging behavior in a two-stroke motorcycle engine, a two-stroke motorcycle oil having the formulation described in Table 1 below was prepared. The formulations are prepared by mixing additives with base oils according to conventional methods of preparation. In order to determine the effect of each composition on the clogging of the exhaust port of the exhaust system, the clogging index of each example was measured using the exhaust system clogging test method JASOM343-92.

[0058] The results of these tests are given in Table 1 below.

[0059] Table 1

[0060]

Comparative example A

Example 1

HVI160B 1

37.4

0

HVI65 2

0

33.88

GTL19 3

0

13.52

Polybutene 950 4

35

25

Shellsol D70B 5

25

25

Additive package 6

2.5

2.5

Irganox L135 7

0.1

0.1

Total (wt%)

100

100

...

Embodiment 2-4 and comparative example B

[0069] In order to determine the effect of GTL base oils on exhaust port plugging behavior in a two-stroke engine, a two-stroke motorcycle oil was prepared with the formulation described in Table 2 below. The formulations are prepared by mixing additives with base oils according to conventional methods of preparation. Various measurements were made for each engine lubricant using the test methods detailed in Table 2. The results of these tests are given in Table 2 below.

[0070] Table 2

[0071]

[0072] 8. Two-stroke performance additive package containing amine dispersants, antioxidants (mixed hindered phenolic and amine antioxidants), overbased detergents selected from calcium phenate and calcium salicylate

[0073] 9. Antioxidant commercially available from CIBA Specialty Chemicals, Berne, Switzerland

[0074] 10. Lubrication additive commercially available from Infinenum, Milton Hill, Oxfordshire, UK

[0075] 11. Mineral Group I base oil commercially available fro...

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Abstract

Use of a lubricating oil composition comprising at least one Fischer-Tropsch derived base oil for reducing exhaust port blocking of a 2-stroke engine. The present invention also relates to a 2-stroke lubricating engine oil composition comprising (i) at least one Fischer-Tropsch derived base oil having a kinematic viscosity at 100°C in the range of from 2 to 30 mm2 / s at 100°C and (ii) 5 wt% or greater of a hydrocarbon solvent; wherein the lubricating engine oil composition has a Blocking Index of greater than 130 as measured by the JASO M343-92 Exhaust System Blocking Test Method.

Description

technical field [0001] The present invention relates to the use of a lubricating oil composition comprising a Fischer-Tropsch derived base oil for reducing vent clogging of a two-stroke engine, and to a lubricating oil for a two-stroke engine having reduced vent clogging. Background technique [0002] Two-stroke gasoline engines are used in motorcycles as well as in garden and recreational equipment such as lawn mowers, chainsaws, string cutters, mopeds, snowboards, outboard marine motors, etc. Low-speed two-stroke diesel engines are used for marine propulsion in large ships. [0003] To operate a two-stroke gasoline engine, the crankcase contains a mixture of two-stroke gasoline lubricant and fuel, and the crankcase acts as a pressurized chamber to force air / fuel into the cylinders. This necessitates the use of lubricating compositions specially formulated for two-stroke engines rather than the high viscosity lubricating oils used in four-stroke engines. Two-stroke engine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M107/02C10M143/00C10N30/06C10N30/04C10N40/26
CPCC10M2205/17C10M2205/173C10N2230/04C10M2205/026C10M107/02C10M2207/026C10N2230/02C10N2230/50C10N2230/06C10M2203/104C10M143/00C10M2203/10C10N2240/105C10N2030/04C10N2030/02C10N2030/50C10N2030/06C10N2040/26C10M109/00C10M169/04
Inventor P·M·布塞N·E·卢恩特S·B·施勒佩D·J·韦德洛克
Owner SHELL INT RES MAATSCHAPPIJ BV
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