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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, applied in the directions of lubricating compositions, chemical instruments and methods, compounds of elements of Group 5/15 of the periodic table, etc., can solve the problems of anti-emulsification performance, incomplete water separation, and water separation time long-term issues

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 life, there are still problems in its anti-emulsification performance, especially in the process of oil-water separation, there is a long time for water separation, and water separation is not good. Thorough shortcomings, affecting other performance of turbine oil, therefore, need further improvement

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
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Effect test

Embodiment 1 10

[0072] The preparation of embodiment 1 octadecylthiophosphonic anhydride H-1

[0073] In a 500mL three-neck flask equipped with a motor stirrer and reflux water separation and condensation facilities, add 100 grams of C18α-olefins (0.4mol), 100 grams of HVI150 neutral oil, 50 grams of phosphorus pentasulfide (0.23mol), and then add 0.75 grams of sulfur , control the reaction temperature to 150°C, at this time, hydrogen sulfide gas is released, absorb hydrogen sulfide gas with 20% sodium hydroxide solution, react at this temperature for 5 hours, stop the reaction, lower the temperature, and filter out the unreacted phosphorus pentasulfide residue , Obtain 236 grams of oily liquid, i.e. octadecylthiophosphonic anhydride H-1, S content 9.3%, P content 3.8%.

Embodiment 2 20

[0074] The preparation of embodiment 2 tetracosyl thiophosphonic anhydride H-2

[0075] In a 500mL three-necked flask equipped with a motor stirrer and reflux water separation and condensation facilities, add 100 grams of C24α-olefins (0.3mol), 80 grams of HVI150 neutral oil, 36 grams of phosphorus pentasulfide (0.16mol), and then add 0.6 grams of nonyl Base phenol, control the reaction temperature to 180°C, at this time, hydrogen sulfide gas is released, absorb hydrogen sulfide gas with 20% sodium hydroxide solution, control the reaction at this temperature for 6 hours, stop the reaction, cool down, and filter to separate the unreacted Phosphorus pentasulfide residue was obtained to obtain 201 g of oily liquid, i.e. tetracosylthiophosphonic anhydride H-2, with an S content of 7.7% and a P content of 2.9%.

Embodiment 3

[0076] The preparation of embodiment 3 propylene sulfonic acid mixtures

[0077] 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 Put in 40 grams (0.952mol) of propylene, and feed high-purity nitrogen, control the pressure of the reactor between 0.8~1MPa, control the temperature of the reactor at 0~10°C, heat the steel cylinder storing sulfur trioxide, and Measure on the electronic scale, 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 to pass the gas into the vent pipe of the autoclave, and then into the liquid phase of the autoclave Carry out sulfonation reaction, sulfur trioxide feed rate is 77.7 grams (0.971mol...

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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 alkylsulfo phosphinic anhydride, 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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IPC IPC(8): C10M161/00C10M137/14C10M151/02C10M149/14C07F9/6578C08F220/18C08F228/02C08G65/28C10N40/12C10N40/02C10N30/06C10N30/10C10N30/12C10N30/18
Inventor 刘依农段庆华张耀
Owner CHINA PETROLEUM & CHEM CORP
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