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Marine string washing oil composition and use thereof
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A composition and oil washing technology, applied in the directions of lubricating compositions, petroleum industry, additives, etc., can solve problems such as easy oil mixing, pollution of piping and equipment, mechanical damage, etc.
Active Publication Date: 2021-06-11
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology
At the same time, it is easy to mix oil with each other during cleaning, pollute the piping system and equipment, and cause mechanical damage and other problems
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Embodiment 1～6
[0027] According to the parts by weight in Table 1, weigh the required amount of antioxidants, passivators, and rust inhibitors and add them to the base oil (viscosity grade 32), heat and stir at 70°C until completely uniform, and then Lower the temperature to 60° C., add a demulsifier and an antifoaming agent, and stir until completely uniform to obtain the boat string washing composition. The type and amount of each component in the composition are specifically shown in Table 1.
[0028] T501 is 2,6-di-tert-butyl-p-cresol; T531 is N-phenyl-α-naphthylamine; T534 is alkylated diphenylamine; T551 is N,N-dibutylaminomethylene-alkyl Benzotriazole; T561 is 2,5-dimercapto-1,3,4-thiadiazole derivative; T746 is alkenyl succinic acid; T747A is alkenyl succinic acid half ester;
Embodiment 7
[0030] The viscosity index, rotary oxygen bomb, liquid phase corrosion, foam characteristics, anti-emulsification performance, cleanliness and compatibility of each composition and the working oil of the ship piping system of the compositions in [Examples 1-6] are tested, and the test results See Table 2 and Table 3.
[0031] Each composition in [Examples 1-6] was tested for viscosity index, rotary oxygen bomb, liquid phase corrosion, foam characteristics, anti-emulsification and cleanliness performance. The viscosity index of each composition in [Examples 1-6] is not less than 85, the rotary oxygen bomb is not lower than 200min, the liquid phase corrosion results are all rust-free, the demulsification performance is not more than 30min, and the anti-foaming performance is at 24 °C, 93.5 °C, and last 24 °C are not greater than 50 / 0, 50 / 0, and 50 / 0 respectively, and the cleanliness is grade 8, see Table 2. It shows that each composition can meet the cleaning requirements of ma...
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Abstract
The invention relates to a marine serial washing oil composition and its application, which mainly solves the problem that in the traditional pipeline cleaning method, the working oil in the future pipeline is used as the cleaning oil, and the properties and viscosities of different working oils are different, which will cause oil circuit pollution and damage to related equipment ; At the same time, it brings inconvenience to lubrication management and unsatisfactory cleaning effect. The present invention comprises the following components in parts by weight: a) 100 parts of mineral base oil; b) 0.01 to 2.0 parts of antioxidant; c) 0.01 to 0.5 parts of passivating agent; d) 0.01 to 0.5 part of rust inhibitor The technical solution better solves this problem. The invention has good cleaning effect and compatibility with working oil products, and can be used for cleaning ship pipelines and their equipment and accessories.
Description
technical field [0001] The invention relates to a marine string washing oil composition and its application. Background technique [0002] Ship pipelines are used to connect the auxiliary machinery, equipment, instruments and accessories installed on the ship, so as to ensure the reliable and normal operation of the ship's power plant and the safe navigation of the ship, and specially transport fluid (liquid or gas). [0003] During the manufacture, transportation and installation of ship pipelines, the inner wall of the pipeline is inevitably contaminated with impurities due to different reasons, and enters into important parts during operation, resulting in equipment damage. Especially in hydraulic systems, most of the failures are directly related to pipeline or oil pollution, which requires high oil cleanliness. Therefore, after the installation of the ship pipeline, the inner wall of the pipeline must be cleaned. Generally, the ship pipelines that need to be cleaned i...
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