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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 cylinder liner and piston surface corrosion, inability to neutralize acidic substances, etc.

Inactive Publication Date: 2008-04-16
无锡惠源高级润滑油有限公司
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  • Abstract
  • Description
  • 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

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Embodiment Construction

[0010] The present invention is made by mixing base oils of 400SN and 150BS, calcium sulfide alkyl phenolate, calcium naphthenate, calcium sulfonate with high base value, ashless dispersant, and antioxidant. The proportion of each component is: 400SN44 Parts, 11 parts of 150BS, 20 parts of calcium sulfide alkylphenate, 13 parts of calcium naphthenate, 7 parts of high base value calcium sulfonate, 4 parts of ashless dispersant, 1 part of antioxidant, its performance parameters: kinematic viscosity 16.3- 2 / s, pour point≤-5℃, flash point≥210℃, total base value≥98mgKOH / g, viscosity index≥70, moisture content≤0.06%, copper corrosion (100℃, 3h)≤1 level.

[0011] The process of the present invention is described below in conjunction with the accompanying drawings: the correctly measured base oil of 400SN and 150BS is fed into the blending kettle and heated to 70±5°C, and the best temperature is 70°C. If the oil contains water, it is heated to 100°C for dehydration, and it is circulated ...

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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 greater than 16.3 mm<2> / s and smaller than 21.9 mm<2> / s (100 DEG C); 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 equalto 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 present 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, in order to reduce energy consumption, shipping companies mostly use heavy and inferior (high sulfur content) fuel oil, and the quality requirements for marine cylinder oil are becoming higher and higher. The total alkalinity of the existing marine cylinder oil can meet the requirements of the ship using fuel oil with a sulfur content of less than 3.0%. When the sulfur content of the fuel oil is greater than 3.0%, the alkalinity of the existing marine cylinder oil cannot neutralize the acidity generated by the combustion of the fuel oil. Substances, excess acidic substances can easily cause corrosion on the surface of cylinder liners and pistons. (3) Contents of the inventio...

Claims

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Application Information

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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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