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Turbine oil additive composition

A technology of steam turbine oil and composition, which is applied in the direction of additives, lubricating compositions, petroleum industry, etc., which can solve the problems of high equipment speed, water ingress in the lubrication system, long operating cycle, etc., and achieve the effect of small corrosion

Active Publication Date: 2013-07-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the rotor shaft seal may leak steam, the possibility of water entering the lubrication system is relatively high. In addition, the equipment has high speed, heavy load, and long operating cycle, so the rust resistance, emulsification resistance and oxidation resistance of the oil are greatly affected. sexually demanding

Method used

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  • Turbine oil additive composition
  • Turbine oil additive composition
  • Turbine oil additive composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] In a 250mL beaker, add the following components according to the amount:

[0035] C 4 / C 8 Alkyl substituted diphenylamine 10.0 g

[0036] Phenyl-α-naphthylamine 13.0 g

[0037] 2-ethyl-hexyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate 24.0g

[0038] Methyl di-n-butyldithiocarbamate 20g

[0039] N,N-Di-n-butylaminomethylenebenzotriazole 9.0g

[0040] Tris-m-cresyl phosphate 10.0g

[0041] Butyl octyl dithiophosphate dodecylamine salt 5.4g

[0042] Heptadecenyl imidazolidinyl succinate 2.0 g

[0043] Dodecenylsuccinic acid 4.0 g

[0044] Ethylenediaminetetrapolyoxypropylene 2.4g

[0045] Ethylene oxide-propylene oxide copolymer 0.2 g

[0046] C above 4 / C 8 Alkyl substituted diphenylamine contains 12-18% by mass of C 4 Alkyl monosubstituted diphenylamine, 22-26% by mass of C 8 Alkyl monosubstituted diphenylamine, 34-38% by mass of C 4 / C 8 Alkyl disubstituted diphenylamine, 10-20% by mass of C 8 / C 8 Alkyl disubstituted diphenylamines.

[0047] After a...

example 2

[0049] In a 250mL beaker, add the following components according to the amount:

[0050] C 4 / C 8 Alkyl substituted diphenylamine 15.0 g

[0051] Phenyl-α-naphthylamine 8.0 g

[0052] Methyl di-n-butyldithiocarbamate 20g

[0053] 2-ethyl-hexyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate 24.0g

[0054] N,N-Di-n-butylaminomethylenebenzotriazole 9.0g

[0055] Phosphonate (T451) 10.0g

[0056] Dibutyl propyl dithiophosphate 5.6 g

[0057] Heptadecenyl imidazolidinyl succinate 2.0 g

[0058] Dodecenylsuccinic acid 4.0 g

[0059] Ethylenediaminetetrapolyoxypropylene 2.2g

[0060] Ethylene oxide-propylene oxide copolymer 0.2 g

[0061] C above 4 / C 8 The composition of the alkyl-substituted diphenylamine is the same as in Example 1. After adding the components, stir and heat at 60° C. for 30 minutes to obtain a uniform and transparent brown-red liquid, which is the additive composition B of the present invention. The physical properties are shown in Table 1.

example 3

[0063] In a 250mL beaker, add the following components according to the amount:

[0064] C 4 / C 8 Alkyl substituted diphenylamine 12.6 g

[0065] Phenyl-α-naphthylamine 10.4 g

[0066] Methyl di-n-butyldithiocarbamate 23.4g

[0067] 2-ethyl-hexyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate 21.0g

[0068] N,N-Dioctylaminomethylenebenzotriazole 10.0g

[0069] Tris-m-cresyl phosphate 9.0g

[0070] Dibutyl propyl dithiophosphate 4.4 g

[0071] Dodecenylsuccinate Half Ester 4.0g

[0072] Dodecenylsuccinic acid 3.0g

[0073] Ethylenediaminetetrapolyoxypropylene 2.0g

[0074] Ethylene oxide-propylene oxide copolymer 0.2 g

[0075] C above 4 / C 8 The composition of the alkyl-substituted diphenylamine is the same as in Example 1. After adding the components, stir and heat at 60° C. for 30 minutes to obtain a uniform transparent brown-red liquid, which is the additive composition C of the present invention. The physical properties are shown in Table 1.

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Abstract

The invention discloses a turbine oil additive composition, which comprises the following components in percent by mass: 8-30 percent of C4 / C8 alkyl substituted diphenylamine, 6-12 percent of phenyl-alpha-naphthylamine, 15-25 percent of phenolic antioxidant, 13-25 percent of methyl ester dibutyl dithiocarbamicacid, 8-10 percent of metal passivator, 5-25 percent of extreme-pressure anti-wear additive, 3-20 percent of anti-rusting agent and 0.5-5 percent of demulsifying agent. The additive composition does not contain diluent oil, is mixed into turbine oil with basic oil, and has superior oxidation stability, high-temperature stability, liquid phase rust-preventing characteristic and water separating performance.

Description

technical field [0001] The invention is a steam turbine oil additive composition, specifically, a steam turbine oil additive composition with high temperature oxidation stability. Background technique [0002] Steam turbines are one of the main equipment in the power generation industry, and the power drives include gas, steam, hydraulic and other forms. [0003] A steam turbine is a high-speed rotary thermal power machine that converts steam heat energy into rotary mechanical energy. Its lubricating parts are mainly gearboxes and rotor bearings. Because the rotor shaft seal may escape steam, the possibility of water entering the lubrication system is relatively high. In addition, the equipment has high speed, heavy load, and long operating cycle, so the rust resistance, emulsification resistance and oxidation resistance of oil products Sexual demands are high. Gas turbines use the gas produced by combustion to do work directly, unlike conventional steam turbines that gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00C10N40/12C10N40/00C10N30/10C10N30/12
Inventor 李新华张辉段庆华
Owner CHINA PETROLEUM & CHEM CORP
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