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Gasholder sealing oil composition with high corrosion resistance and oxidation resistance

A technology of anti-oxidation performance and sealing oil, which is applied in the field of lubricating oil composition, sealing and lubrication of dry-type gas cabinets, and gas cabinet sealing oil composition, and can solve the problem of poor oxidation resistance and corrosion resistance of oil products, which cannot It satisfies the problems of complex working conditions and affecting the normal operation of dry-type gas cabinets, and achieves the effects of wide application range, excellent high anti-oxidation stability, and excellent high anti-oxidation stability

Active Publication Date: 2012-02-01
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commercially available dry gas cabinet sealing oil products mainly use anti-rust agents, anti-emulsifiers, and viscosity index improvers in terms of formulation technology. Although they have certain anti-corrosion and anti-oxidation properties, hydrogen sulfide in the stored gas When the content of highly corrosive gases such as chlorine and chlorine is high, the oxidation resistance and corrosion resistance of the oil will deteriorate, which will lead to corrosion of the dry-type gas cabinet and aging of the oil, which will affect the normal operation of the dry-type gas holder. To meet the needs of complex working conditions well, a new gas cabinet sealing oil product with high anti-corrosion and anti-oxidation properties is required to match it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Get 0.8kg of dienyl succinimide (T154), 0.1kg of phosphobisoctyl zinc salt (T203), 0.2kg of 2,6-di-tert-butyl p-cresol (T501), 0.2kg of octylbutyl di Aniline (IRGANOXL 57) 0.1kg, high base value synthetic calcium sulfonate (T106) 0.3kg, polymethylmethacrylate (VISCOPLEX 8-310) 1.0kg, polymethylmethacrylate (VISCOPLEX 1-248) 1.0kg , 0.02kg of amine and epoxy condensate (purchased from Nanjing Ningjiang Chemical Plant), and then added to 96.48kg of 40°C kinematic viscosity of 50mm 2 / s base oil (purchased from China Petrochemical Corporation), mixed and stirred at 45° C. for 5 hours to prepare the gas holder sealing oil composition of the present invention.

[0048]After testing, the test result of the rotating oxygen bomb (150°C) SH / T 0193 method of this product reached 425 minutes, and the corrosion resistance test passed the corrosion test of copper and steel sheets in the GB / T 5096 method. The test result was 1a, and the acid value data test data was 0.17 mg KOH / g. ...

Embodiment 2

[0050] Get dienyl succinimide 0.02kg, thionyl butoctyl zinc salt (T202) 0.5kg, 2,6-di-tert-butyl p-cresol 0.4kg, high alkali value synthetic calcium sulfonate (T106) 0.5 kg, polymethyl methacrylate (VISCOPLEX 8-450) 2.5kg, polymethyl methacrylate (VISCOPLEX 1-248) 0.8kg, amine and epoxy condensate (purchased from Nanjing Ningjiang Chemical Factory) 0.1kg , and then sequentially added to 95.18kg of 40 ° C kinematic viscosity of 80mm 2 / s base oil (purchased from Ssangyong Corporation of Korea), mixed and stirred at 55° C. for 4 hours to prepare the gas holder sealing oil composition of the present invention.

[0051] After testing, the test result of the rotating oxygen bomb (150°C) SH / T 0193 method of this product reaches 424 minutes, and the corrosion resistance test passed the corrosion test of copper and steel sheets in the GB / T 5096 method. The test result is 1a, and the acid value data test data is 0.16 mg KOH / g.

Embodiment 3

[0053] Get 0.6kg of dienyl succinimide, 0.05kg of thiophosphobutoctyl zinc salt, 0.6kg of 2,6-di-tert-butyl p-cresol, 0.03kg of synthetic calcium sulfonate with high alkali value, polymethacrylic acid Methyl ester (VISCOPLEX 8-450) 5.2kg, polymethyl methacrylate (VISCOPLEX 1-248) 0.6kg, amine and epoxy condensate 0.05kg, and then added to 92.87kg 40 ℃ kinematic viscosity of 100mm 2 / s base oil, mixed and stirred at 70°C for 3 hours to prepare the gas holder sealing oil composition of the present invention.

[0054] After testing, the test result of the rotating oxygen bomb (150°C) SH / T 0193 method of this product reached 428 minutes, and the corrosion resistance test passed the corrosion test of copper and steel sheets in the GB / T 5096 method. The test result was 1a, and the acid value data test data was 0.17 mg KOH / g.

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Abstract

The invention provides a gasholder sealing oil composition with high corrosion resistance and oxidation resistance. The gasholder sealing oil composition comprises the following components in percentage by weight: 0.1 to 1.2 percent of antioxidant, 0.01 to 0.8 percent of dispersant, 0.05 to 1.0 percent of antioxidant and anti-corrosion agent, 0.01 to 1.0 percent of cleaning agent, 0.01 to 0.2 percent of demulsifier, 1 to 11 percent of viscosity index improver, 0.1 to 2 percent of pour point depressant and the balance of base oil. The gasholder sealing oil composition has excellent antioxidation stability, is suitable for various working conditions and has long service life; raw materials are reasonably mixed; and the preparation method has the advantages of simplicity, wide application range and readily available raw materials.

Description

technical field [0001] The present invention relates to a lubricating oil composition, in particular to a gas holder sealing oil composition with high anti-corrosion and anti-oxidation properties, which is widely used in industries such as metallurgy, urban public transportation, petroleum and petrochemical, chemical industry, municipal administration, etc. The invention relates to the sealing and lubricating of dry type gas holders, belonging to the field of chemical industry. Background technique [0002] Dry-type gas holder is a kind of gas holder, which is used to store various fuel gases, and is widely used in metallurgy, urban public transportation, petroleum and petrochemical, chemical, municipal and other industries. At present, in order to meet the requirements of storage pressure and storage volume, dry-type gas cabinets are developing in the direction of high pressure and large size. The storage pressure can reach 15kPa, with a design of 450,000 m 3 Capability of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/12C10N30/10C10N40/34
Inventor 韦安柱陈惠卿汤涛李万英万福新曹春兰王向阳
Owner CHINA PETROLEUM & CHEM CORP
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