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CD grade diesel engine oil additive and use thereof

A technology for additives and diesel oil, applied in the direction of additives, petroleum industry, lubricating compositions, etc., can solve the problems of undisclosed CD-grade diesel engine oil, etc., and achieve good cleaning and dispersibility, good anti-oxidation and anti-corrosion effects

Active Publication Date: 2014-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, none of the above patents discloses that different doses of the same compounding agent can be used to prepare CD-grade diesel engine oils of different viscosity grades.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0036] Stir each component in proportion at 60° C. for 2 hours to dissolve them all, and then the additive compositions 1-9 of the present invention can be obtained. The additive composition is shown in Table 1.

[0037] Each additive composition in Table 1 was added to the HVI class I base oil at a dosage of 3.8wt% to prepare CD30 diesel engine oil. The following simulation tests and bench tests were used to compare with the CD30 diesel engine oil blended in the comparative example. The inspection results are shown in Table 2.

[0038] Add the additive compositions in Table 1 at a dose of 5.2wt% to HVI Group I base oil or HVI Group II base oil to prepare CD15W-40 diesel engine oil, and use the following simulation test and bench test to blend with the comparative example The CD30 diesel engine oil was compared, and the results are shown in Table 3.

[0039] Add the additive compositions in Table 1 at a dose of 5.8wt% to HVI Group I base oil or HVI Group II base oil to prepar...

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PUM

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Abstract

The present invention relates to a CD grade diesel engine oil additive and a use thereof. According to the present invention, the CD grade diesel engine oil additive comprises, by weight, a) 10-50 parts of a detergent, b) 10-40 parts of a dispersing agent, c) 5-30 parts of an antioxidant, d) 1-5 parts of a pour point depressant, and e) 0.1-2 parts of an anti-foaming agent, wherein the calcium content in the additive is 30000-70000 ppm, the nitrogen content in the additive is 3000-7000 ppm, and the base number is not less than 100 mgKOH / g; and with the additive, qualities of the modulated CD single grade oil and the modulated CD multi-grade oil achieve the CD diesel engine oil specification in GB11122-2006, and the additive can be used for industrial production of the CD grade diesel engine oil.

Description

technical field [0001] The invention relates to a CD grade diesel engine oil additive and its application. Background technique [0002] In order to meet the increasingly stringent emission regulations, new diesel engine technologies are constantly being introduced, such as the use of turbochargers, delayed injection, particle traps, etc. These new technologies effectively reduce the impact of harmful substances on the environment, and the working conditions of diesel engines are more severe, so higher requirements are placed on the performance of lubricating oil. However, some diesel engines manufactured in the 1980s and 1990s are still in use, and the coexistence of new and old diesel engines is estimated to last for many years, playing their own different roles. Therefore, when developing high-grade diesel engine oil to meet new diesel engines, it is necessary to pay more attention to the oil demand of medium and low-grade diesel engines or old diesel engines. At presen...

Claims

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Application Information

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IPC IPC(8): C10M167/00C10M161/00C10N30/04C10N30/10C10N30/12
Inventor 王亚萍杨慧青侯仲淼郑金花蒋辰婕秦振清马旭馨
Owner CHINA PETROLEUM & CHEM CORP
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