Diesel additive composition containing alkyl ethylene glycol acetic acid and application thereof
A technology of alkyl ethylene glycol and alkyl diethylene glycol, which is applied in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of large usage, limited effect and inconvenience of diesel lubricity, and achieve Effects of reducing pollution, improving oxidation stability and detergency
Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary
Problems solved by technology
Although these products have the advantages of easy-to-obtain raw materials and relatively cheap prices, they are used in large quantities, and the effect of improving the lubricity of diesel oil is limited. At the same time, due to their high viscosity, they are easy to precipitate at low temperatures, which brings inconvenience to their practical applications.
Method used
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example 1
[0056] Take 0.3g of 2,6-di-tert-butyl-p-cresol and 40g of polyetheramine, add them into a 500ml reaction kettle, and stir for 30 minutes at 40-60°C. Then add 260 g of methyl glycol acetic acid, stir at 40-60° C. for 30 minutes to completely dissolve, and obtain composition 1.
example 2
[0058] Take 0.6g of 2,6-di-tert-butyl-p-cresol and 120g of polyetheramine, add them into a 500ml reaction kettle, and stir at 40-60°C for 30 minutes. Then add 180 g of ethyl glycol acetic acid, and stir for 30 minutes at 40-60° C. to dissolve completely. Composition 2 was obtained.
example 3
[0060] Take 1 g of 2,6-di-tert-butyl-p-cresol and 150 g of polyetheramine, add them into a 500 ml reaction kettle, and stir for 30 minutes at 40-60°C. Then add 150 g of propyl glycol acetic acid, and stir for 30 minutes at 40-60° C. to dissolve completely. Composition 3 was obtained.
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The invention provides a low-sulfur diesel lubricating additive composition which comprises 10-88 wt% of alkyl ethylene glycol acetic acid and / or alkyl diethylene glycol acetic acid A, 0.01-2.0 wt% of alkyl phenol B and 10-88 wt% of diesel detergent polyetheramine C. The general formula of the alkyl ethylene glycol acetic acid and / or alkyl diethylene glycol acetic acid is R(OCH2CH2)nOCH2COOH, wherein R is C1-C20 n-alkyl group or C6-C20 isoalkyl group, and n is 1 or 2. The invention also provides a method for improving lubricating property of diesel. After 50-2000mg of the lubricating additive composition is added to every kilo of diesel, the lubricating additive composition can obviously improve the lubricating property of the low-sulfur diesel in which the sulfur content is not greater than 350 mg / kg, so that the lubricating property index (HFRR) of the diesel satisfies the national diesel standard requirements; and meanwhile, the oxidation stability and detergency of the diesel are improved.
Description
technical field [0001] The invention belongs to a diesel oil lubricity additive composition. Specifically, as a diesel oil lubricity additive, it can improve the lubricity index of diesel oil, and can also improve the oxidation stability and detergency index of diesel oil. Background technique [0002] Many countries and regions in the world have reduced the sulfur content of diesel to 10-500mg / kg to reduce pollutant emissions from diesel engines. At present, the sulfur content of diesel in my country is required to be no more than 2000mg / kg, but in Beijing, Shanghai, Guangzhou and other big cities, the sulfur content of diesel used is less than 50mg / kg. In order to remove sulfur during the processing of diesel, people use hydrofining to treat diesel and reduce the sulfur content of diesel. [0003] Advanced diesel fueling systems, including fuel pumps and fuel controllers, rely on pumped diesel to lubricate the various components. Natural sulfides and polar substances in ...
Claims
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IPC IPC(8): C10L1/188C10L1/238C10L1/183C10L10/08
Inventor 黄燕民蔺建民
Owner CHINA PETROLEUM & CHEM CORP