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Steam turbine oil composition and method for improving performances of steam turbine oil

A technology of steam turbine oil and composition, which is applied in lubricating composition, petroleum industry, additives, etc. It can solve the problems of incomplete water separation, long water separation time, and affecting the performance of turbine oil, etc.

Active Publication Date: 2016-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the turbine oil provided by the above patents has good oxidation stability, wear resistance and long service life, there are still problems in its performance, especially in oil-water separation performance, such as long water separation time and incomplete water separation. The shortcomings of the turbine oil affect other performance, therefore, need to be further improved

Method used

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  • Steam turbine oil composition and method for improving performances of steam turbine oil
  • Steam turbine oil composition and method for improving performances of steam turbine oil
  • Steam turbine oil composition and method for improving performances of steam turbine oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The preparation of embodiment 1 tertiary dodecyl mercaptan hexanoate

[0062] In a 500mL three-necked flask with a motor stirrer and reflux water separation and condensation facilities, add 80 grams of No. 120 solvent gasoline, 100 grams of tert-dodecyl mercaptan (M=202.4, 0.49mol), and then add 15 grams of 98 % concentrated sulfuric acid, control the reaction temperature to be 90°C, add 56.9 grams of hexanoic acid (M=116.2, 0.49mol) dropwise with a separatory funnel, the time for the addition is 1 hour, then reflux for 3 hours, and separate the water in the reaction , when the water content reaches 8.7 grams (98.6%), stop the reaction, cool down, separate the vitriol oil, then wash the oil layer with deionized water until neutral, then distill the solvent under reduced pressure to obtain 146 grams of oily liquid, which is Tert-dodecyl mercaptan hexanoate S-1, S content 10.2%.

Embodiment 2 10

[0063] The preparation of embodiment 2 tetradecyl mercaptan propionate

[0064] In a 500mL three-neck flask equipped with a motor stirrer and reflux water separation and condensation facilities, add 60 grams of No. 120 solvent gasoline, 90 grams of tetradecyl mercaptan (M=230.45, 0.39mol), and then add 11 grams of concentrated sulfuric acid , control the reaction temperature to be 95°C, add 28.9 grams of propionic acid (M=74, 0.39mol) dropwise with a separatory funnel, the dropwise addition time is 1.2 hours, then reflux for 4 hours, and separate the water in the reaction. When reaching 6.9 grams (98.3%), stop the reaction, lower the temperature, separate the water layer, then wash the oil layer with deionized water until neutral, then distill the solvent under reduced pressure to obtain 111.3 grams of oily liquid, which is tetradecyl Thiol propionate S-2, the S content is 11.3%.

Embodiment 3

[0065] The preparation of embodiment 3 propylene sulfonic acid mixtures

[0066] Add 80 grams of petroleum ether at 30°C to 60°C in a 500mL corrosion-resistant autoclave with stirring, heating, and cooling bath, then close the reactor, turn on the stirring, and pass it into a cooling bath for temperature control, and then use a high-pressure pump to Add 40 grams (0.952 mol) of propylene, and feed high-purity nitrogen, control the pressure of the reactor between 0.8 and 1 MPa, control the temperature of the reactor at 0 to 10°C, heat the cylinder containing sulfur trioxide, and place Measure on an electronic scale, and then control the heating temperature so that the pressure of the sulfur trioxide cylinder is greater than the pressure of the autoclave, and open the outlet valve of the sulfur trioxide cylinder, and then pass the gas into the vent pipe of the autoclave, and then into the liquid phase of the autoclave Carry out the sulfonation reaction in the middle, the amount o...

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Abstract

The invention provides a steam turbine oil composition and a method for improving the performances of steam turbine oil. The steam turbine oil composition comprises alkyl mercaptide, a demulsifier, an antioxidant, an extreme pressure anti-wear agent, an antirust agent, a metal passivator and a main quantity of lubricating base oil. The steam turbine oil composition is suitable for lubricating a steam turbine set, and has the advantages excellent anti-wear and extreme pressure performances, excellent oxidation, rust, foaming and foaming resistance, rapid and thorough water diversion, and guaranteeing of normal work of steam turbines.

Description

technical field [0001] The invention relates to a steam turbine oil composition, in particular to a steam turbine oil composition suitable for steam turbines, gas turbines and gas turbine combined units. Background technique [0002] Gas turbines and steam turbines are one of the important equipment in thermal power plants. Whether the equipment is running normally is related to the safety of power supply. Among them, lubricating oil is the main component to ensure the normal operation of the equipment, and has the functions of lubricating and cooling the unit. Due to the inevitable contact with water and steam during use, there is a certain amount of water in the lubricating oil. In addition, the lubricating oil is used at high temperature in the presence of air for a long time, and the oil is easily oxidized to form various oxidation products. At the same time, it interacts with water and air, which makes the water separation performance and anti-foaming performance of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10M169/04C10N30/06C10N40/02C10N30/10C10N30/12
Inventor 刘依农段庆华张耀
Owner CHINA PETROLEUM & CHEM CORP
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