Marine cylinder oil and method for processing same

A cylinder oil and marine technology, applied in the field of lubricating oil, can solve the problems of inability to neutralize acidic substances, cylinder liner and piston surface corrosion, etc.

Inactive Publication Date: 2012-12-26
无锡惠源高级润滑油有限公司
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

The total base number of the existing marine cylinder oil can satisfy the fuel oil with a sulfur content below 3.0% used by ships. When the sulfur content of the fuel oil is greater than 3.0%, the base number of the existing marine cylinder oil cannot neutralize the acidity generated by the combustion of the fuel oil Substances, excess acidic substances can easily corrode cylinder liners and piston surfaces

Method used

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  • Marine cylinder oil and method for processing same
  • Marine cylinder oil and method for processing same
  • Marine cylinder oil and method for processing same

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Embodiment Construction

[0010] The present invention is prepared by mixing base oils with grades of 400SN and 150BS, sulfurized alkylphenate calcium, calcium naphthenate, high alkali value calcium sulfonate, ashless dispersant, and antioxidant, and the proportion of each component is: 400SN44 Parts, 11 parts of 150BS, 20 parts of sulfurized alkylphenate calcium, 13 parts of calcium naphthenate, 7 parts of high alkali value calcium sulfonate, 4 parts of ashless dispersant, 1 part of antioxidant, its performance parameters: at 100 ℃ condition, 16.3mm 2 / s≤kinematic viscosity2 / s, pour point≤-5°C, flash point≥210°C, total base number≥98mgKOH / g, viscosity index≥70, moisture≤0.06%, under the condition of 100°C, 3h, copper sheet corrosion≤1 grade.

[0011] The technical process of the present invention is described below in conjunction with the accompanying drawings: put the correctly measured base oils of grade 400SN and grade 150BS into the blending tank, and heat up to 70±5°C, the optimum temperature is...

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Abstract

The invention relates to ship cylinder oil which meets the requirements of lubrication between piston and cylinder wall when offshore and ocean low-speed crosshead two-stroke engines adopt fuel oil with sulphur content more than 3 percent. Therefore, the invention also provides the processing method of ship cylinder oil. The invention is characterized in that the ship cylinder oil is mixed by base oil, sulfurized calcium alkyl phenate, calcium naphthenate, high base number calcium sulfonate, ashless dispersant and antioxidant; moreover, the invention adopts the following performance parameters: kinematic viscosity is 16.3- <21.9(100 DEG C)MM<2> / s; pour point is less than or equal to 5 DEG C below zero; flash point is more than or equal to 210 DEG C; total base number is more than or equal to 98mgKOH / g; viscosity index is more than or equal to 70; water content is less than or equal to 0.06 percent and sheet copper corrosion (100 DEG C, 3h) is less than or equal to 1 grade. The processing method of ship cylinder oil is characterized in that base oil is fed into a mixing kettle to be heated till the temperature reaches to 70+-5 DEG C while stirring and circulating; sulfurized calcium alkyl phenate, calcium naphthenate, high base number calcium sulfonate, ashless dispersant and antioxidant are pumped into a geosyncline to be mixed with part preheated base oil which is also fed into the geosyncline; the mixed material inside the geosyncline is pumped into the mixing kettle by a gear pump to be stirred for dissolution; moreover, the mixed material is under circulation by a static mixer for no less than 2.5 hours when stirred.

Description

(1) Technical field [0001] The present invention relates to marine cylinder oil, and the invention also relates to a processing method of marine cylinder oil, which belongs to the technical field of lubricating oil. (2) Background technology [0002] With the development of the shipbuilding industry, shipping companies use mostly heavy and low-quality (high sulfur content) fuel oil in order to reduce energy consumption, and the quality requirements for marine cylinder oil are also getting higher and higher. The total base number of the existing marine cylinder oil can satisfy the fuel oil with a sulfur content below 3.0% used by ships. When the sulfur content of the fuel oil is greater than 3.0%, the base number of the existing marine cylinder oil cannot neutralize the acidity generated by the combustion of the fuel oil Substances, excess acidic substances can easily corrode the surface of the cylinder liner and piston. (3) Contents of the invention [0003] Aiming at the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M135/10C10M129/58C10N30/10C10N30/04C10N40/00
Inventor 缪冬琴惠静芬
Owner 无锡惠源高级润滑油有限公司
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