A turbine oil composition, its preparation and use

Abstract

The application provides a turbine oil composition, a preparation method and application thereof, and the composition comprises the following components in mass fraction: 0.8-2 parts of a complexing agent, 0.05-0.3 parts of an antioxidant, 0.01-0.05 parts of an extreme pressure agent, 0.001-0.1 parts of an antifoaming agent and 97.5-99 parts of base oil. The turbine oil provided by the application has the extreme pressure performance, and simultaneously considers the rotary oxygen bomb attenuation rate (life) and low sludge tendency of the oil.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lubricating oil, and particularly relates to a turbine oil composition and a preparation method and application thereof. BACKGROUND

[0002] With the continuous improvement of technical means, gas turbines gradually develop towards high power, high efficiency and large capacity, and the continuous development of equipment also puts forward more stringent requirements for the oil used, for example, Mitsubishi Power, as one of the three largest gas turbine manufacturers in the world, its gas turbine M251S (50MW), M701SDA (150MW), M701SDAX (180MW) and M701SF (300MW) units for steel plant blast furnace gas and coke oven gas power generation, this series of gas turbine equipment has a gear box, and puts forward extremely strict requirements on the extreme pressure performance, high temperature oxidation stability, low sludge tendency and metal corrosion resistance of the oil, and the specific oil specification is Mitsubishi Power MS04-MA-CL003 (R5), which is the most demanding OEM (equipment manufacturer) specification for extreme pressure turbine oil in the global gas turbine market at present, and is also the development direction of extreme pressure turbine oil in the future.

[0003] At present, the antioxidant system of turbine oil generally uses a combination of phenolic antioxidants and amine antioxidants (including diphenylamine and alpha naphthylamine), and after adding extreme pressure agents in this system, the rotary oxygen bomb decay rate of the oil will be accelerated, and the sludge will increase, so it is difficult for the prior art to have extreme pressure performance while considering the rotary oxygen bomb decay rate (service life) and low sludge tendency of turbine oil, and there is no literature and related patent reports at home and abroad. SUMMARY

[0004] In order to solve the above problems in the prior art, the present application provides a turbine oil composition and a preparation method and application thereof.

[0005] In a first aspect, the present application provides a turbine oil composition, the composition components include, by mass fraction:

[0006]

[0007]

[0008] As a specific embodiment of the present application, the complexing agent is at least one selected from HiTEC 2505 or Irgapac T1668M. Preferably, when the two are compounded, the proportion of Irgafos 168 is greater than 50%.

[0009] As a specific embodiment of the present application, the antioxidant is at least one selected from Irgafos 168 or Irganox L06.

[0010] As a specific embodiment of the present application, the extreme pressure agent is at least one selected from Irgalube 353 or RC3775.

[0011] As a specific embodiment of the present application, the anti-foaming agent is at least one selected from FOAM BAN 130B or Synative ACAMH2.

[0012] As a specific embodiment of the present application, the base oil is API III base oil, for example but not limited to Sinopec API III base oil, the kinematic viscosity of the base oil at 40℃ is preferably 15-95mm 2 / s.

[0013] The above raw materials in the present application can be self-made or commercially available, and the present application does not make special limitations thereto.

[0014] In a second aspect, the present application provides a preparation method of turbine oil composition, comprising the following steps:

[0015] S1: mixing the antioxidant, extreme pressure agent, complexing agent and base oil to obtain a first mixture;

[0016] S2: adding the anti-foaming agent to the first mixture obtained in step S1, and mixing to obtain the extreme pressure and high temperature resistant turbine oil composition.

[0017] As a specific embodiment of the present application, in step S1, the mixing conditions include: heating the temperature to 78-83℃, the stirring rate is 300-600rmp, and the stirring time is 30-40min.

[0018] As a specific embodiment of the present application, in step S2, the mixing conditions include: reducing the temperature to room temperature, the stirring rate is 300-600rmp, and the stirring time is 1-1.5h.

[0019] In a third aspect, the present application provides the application of the turbine oil composition prepared by the preparation method in the field of gas turbine and centrifugal compressor.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. The turbine oil composition of the present application, both of the two turbine oil complexing agents HiTEC 2505 or Irgapac T1668M selected in the turbine oil composition contain naphthylamine type antioxidant, which has very excellent high temperature antioxidant performance; phosphite type antioxidant Irgafos 168 or alkylated alpha naphthylamine type antioxidant Irganox L06 can well inhibit the corrosion of oil to metal under high temperature conditions; dithiophosphate derivative type extreme pressure agent Irgalube 353 or phosphorus type extreme pressure agent RC3775 can well improve the extreme pressure performance of the oil; the complexing agent, antioxidant and extreme pressure agent have good synergies among them.

[0022] 2. It can be known from the test examples that the turbine oil composition of the present application, the gear machine test failure level is ≥9 levels, while ensuring the extreme pressure performance, can pass the high temperature corrosion test, and the Dry-TOST test life is greater than 700h, and the sludge is less than 100mg / kg, which can meet the requirements of Mitsubishi Power MS04-MA-CL003(R5) specification. Thus, the turbine oil with extreme pressure performance can also consider the oxygen bomb attenuation rate and low sludge trend of the oil.

[0023] 3. The turbine oil product prepared by the present application can be used in most gas turbines and centrifugal compressors including Mitsubishi extreme pressure type gas turbines; at the same time, compared with the synthetic turbine oil which also meets the requirements of Mitsubishi Power MS04-MA-CL003(R5) specification, the cost of the turbine oil product prepared by the present application can be reduced by 30%. DETAILED DESCRIPTION

[0024] The present application will be further described below in conjunction with specific examples, but does not constitute any limitation on the present application.

[0025] Example 1

[0026] The present embodiment provides a turbine oil composition and a preparation method thereof, and the specific details are as follows:

[0027] The turbine oil composition of the present embodiment includes the following components in mass parts:

[0028] The complexing agent Irgapac T1668M is 1.3 parts,

[0029] The antioxidant Irgafos 168 is 0.2 parts,

[0030] The extreme pressure agent Irgalube 353 is 0.02 parts,

[0031] The antifoaming agent FOAM BAN 130B is 0.015 parts,

[0032] The base oil III4 is 14 parts and III6 is 84.465 parts.

[0033] Preparation method:

[0034] S1: The above antioxidant, extreme pressure agent, complexing agent and base oil were added into a container in sequence, heated and stirred, and the temperature was maintained at 78-83°C, and stirred for 30-40 min;

[0035] S2: The antifoaming agent was slowly added into the first mixture obtained in step S1, and stirring was continued for 1-1.5 h to obtain the extreme pressure and high temperature resistant turbine oil composition.

[0036] Examples 2-5

[0037] The preparation method of the turbine oil composition of Examples 2-5 was the same as that of Example 1, except that the components were different, and the components were shown in Table 1:

[0038] Table 1: Weight fraction of each component in Examples 1-5

[0039]

[0040] Comparative Examples 1, 3 and 4

[0041] The preparation method of Comparative Examples 1, 3 and 4 was the same as that of Example 1, except that the components were different, and the components were shown in Table 2.

[0042] Comparative Examples 2 and 5

[0043] The preparation method of Comparative Examples 2 and 5 was the same as that of Example 1, except that the heating temperature in step S1 was 50°C, and the other steps were the same as those of Example 1; and the components were different, and the components were shown in Table 2.

[0044] Table 2: Weight fraction of each component in Comparative Examples 1-5

[0045]

[0046]

[0047] The turbine oil compositions obtained in Examples 1-5 and Comparative Examples 1-5 were subjected to performance tests, and the specific test results were shown in Table 3; and the detection methods used were as follows:

[0048] Life, sludge: SH / T 0193-2008 "Determination of oxidation stability of lubricating oils by rotating oxidation cell method", ASTM D7873 "Determination of Oxidation Stability and Insolubles Formation of Inhibited Turbine Oils at 120℃ Without the Inclusion of Water (Dry TOST Method)";

[0049] High temperature corrosion test: NB / SH / T 0844-2010 "Determination of corrosive and oxidation stability of turbine oils";

[0050] Gear machine test: GB / T 19936.1-2005 "Relative pitting load capacity of oils FZG test method A / 8.3 / 90".

[0051] Table 3 Test result data table of examples and comparative examples

[0052]

[0053] As can be seen from Table 3, the extreme pressure and high temperature resistant turbine oil compositions of Examples 1-5 can pass the high temperature corrosion test while ensuring the extreme pressure performance (gear machine test failure level ≥ 9), and the life of Dry-TOST test is greater than 700 h and the sludge is less than 100 mg / kg, which can meet the requirements of Mitsubishi Power MS04-MA-CL003 (R5) specifications.

[0054] Examples 1-5 select API Class III base oil, and add appropriate doses of complexing agent HiTEC 2505 or Irgapac T1668M, appropriate doses of antioxidant Irgafos 168 or (and) Irganox L06, appropriate doses of extreme pressure agent Irgalube 353 or RC3775, appropriate doses of antifoaming agent FOAM BAN 130B or Synative The turbine oil composition modulated by AC AMH2 can meet the requirements of Mitsubishi Power MS04-MA-CL003 (R5) specifications, which indicates that the oil has good extreme pressure and high temperature resistance.

[0055] In summary, the turbine oil composition of the present application contains two turbine oil complex agents, HiTEC 2505 or Irgapac T1668M, both of which contain naphthylamine antioxidants, which have very excellent high-temperature antioxidant properties; Irgafos 168 or alkylated alpha naphthylamine antioxidant Irganox L06, which can well inhibit the corrosion of oil to metal under high-temperature conditions; Irgalube 353 or phosphorus type extreme pressure agent RC3775, which can well improve the extreme pressure performance of the oil; the three have good synergies between the complex agent, antioxidant and extreme pressure agent. Through testing the turbine oil composition obtained by the examples of the present application, the gear machine test failure level is ≥ 9 levels, which can pass the high-temperature corrosion test while ensuring the extreme pressure performance, and the Dry-TOST test life is greater than 700h, and the sludge is less than 100mg / kg, which can meet the requirements of Mitsubishi Power MS04-MA-CL003(R5) specifications. Thus, the turbine oil has good extreme pressure performance, and the oil bomb decay rate and low sludge trend are also considered.

[0056] In the present application, any numerical value mentioned herein, if there are only two units of interval between any minimum value and any maximum value, all values from the minimum value to the maximum value are included with one unit of increase. For example, if it is stated that the amount of a component, or the value of a process variable such as temperature, pressure, time, etc. is 50-90, in the specification it means that the values of 51-89, 52-88, … and 69-71, 70-71, etc. are specifically listed. For non-integer values, 0.1, 0.01, 0.001 or 0.0001 can be appropriately considered as a unit. This is just a few special examples. In this application, in a similar manner, all possible combinations of values between the minimum value and the maximum value listed are considered to have been disclosed.

[0057] It should be noted that the above-described examples are only used to explain the present application and do not constitute any limitation on the present application. The present application is described by referring to typical examples, but it should be understood that the words used therein are descriptive and explanatory words, not limiting words. The present application can be modified as specified within the scope of the claims of the present application, and the present application can be revised without departing from the scope and spirit of the present application. Although the present application described therein relates to specific methods, materials and examples, it does not mean that the present application is limited to the specific examples disclosed therein, on the contrary, the present application can be extended to all other methods and applications with the same function.

Claims

1. A turbine oil composition characterized in that, consists of, in parts by mass: 0.8~2 parts of complexing agent, 0.05~0.3 parts of antioxidant, 0.01-0.05 parts of extreme pressure agent, 0.001~0.1 parts of antifoam agent, 97.5~99 parts of base oil; the complexing agent is at least one selected from HiTEC 2505 or Irgapac T1668M; the antioxidant is Irgafos 168; the extreme pressure agent is Irgalube 353; The base oil is an API Group III base oil, and the base oil has a kinematic viscosity at 40°C of 15 to 95 mm 2 / s.

2. The turbine oil composition of claim 1, wherein, the antifoam agent is at least one selected from FOAM BAN130B and Synative® AC AMH2.

3. A process for the preparation of a turbine oil composition as claimed in claim 1 or 2, characterized in that, comprising the following steps: S1: mixing antioxidant, extreme pressure agent, complexing agent and base oil to obtain a first mixture; S2: adding antifoam agent to the first mixture obtained in step S1, and mixing to obtain a turbine oil composition.

4. The preparation method according to claim 3, characterized in that, in the step S1, the mixing conditions include: temperature heating to 78~83℃, stirring rate 300~600rmp, stirring time 30~40min.

5. The production method according to claim 3 or 4, characterized by, in the step S2, the mixing conditions include: temperature reducing to room temperature, stirring rate 300~600rmp, stirring time 1~1.5h.

6. The use of the turbine oil composition of claim 1 or 2 or the turbine oil composition prepared by the preparation method of any one of claims 3-5 in the field of gas turbines and centrifugal compressors.

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