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Fuel composition for IC engine

A composition and technology for internal combustion engines, which are applied to fuels, liquid carbon-containing fuels, petroleum industries, etc., can solve problems such as affecting the cold filter point of fuel, combustion calorific value, and insignificant effects, and achieve enhanced effect improvement, improved lubricity, and improved lubricity. The effect of meeting the needs of environmental protection

Active Publication Date: 2006-08-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its similar properties to diesel, biodiesel is a new type of environmentally friendly fuel substitute. It can also improve the lubricity of low-sulfur diesel when it is used as a blending component of diesel, but the effect is not significant below a low concentration (0.5%). The lubricity requirements of low-sulfur diesel oil can be basically met within the range of 1-10% addition
However, a high addition amount may affect some properties of the fuel itself, such as cold filter point, combustion calorific value, etc., and it will also bring some problems to the engine, such as swelling of sealing materials, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Biodiesel is prepared from rapeseed oil and methanol, that is, rapeseed oil methyl ester, and the residual monoglyceride, diglyceride and triglyceride are removed by vacuum distillation. Add above-mentioned biodiesel 25g, glacial acetic acid 10g and heteropolyacid modified strong acid resin catalyst (brand AMBERLYST 35WET, produced by Rohm & Haas Co.) 1.25g in the three-necked flask that electromagnetic rotor, thermometer are housed, Add 10.7ml of 30% hydrogen peroxide dropwise at 63°C, and stir at constant temperature. After reacting for 4-8 hours, the product is poured into a separatory funnel and allowed to stand for stratification, and the upper layer product is taken for neutralization, washed, dried and filtered to obtain hydroxylated rapeseed oil methyl ester.

[0024] Fuel samples 1-7 were prepared according to Table 1, and the HFRR lubricity test data are shown in Table 1.

[0025] fuel sample

Embodiment 2

[0027] Using soybean oil and methanol as raw materials to prepare biodiesel, that is, soybean oil methyl ester, and then follow the steps in Example 1 to prepare hydroxylated soybean oil methyl ester, and prepare fuel samples 8-11. The HFRR lubricity test data are shown in Table 2.

[0028] fuel sample

Embodiment 3

[0030] Using rue seed oil and methanol as raw materials to prepare biodiesel, i.e. rue seed oil methyl ester, follow the steps in Example 1 to prepare hydroxylated rue seed oil methyl ester, and prepare fuel samples 12-15. The HFRR lubricity test data are shown in Table 3.

[0031] fuel sample

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PUM

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Abstract

This invention provides a fuel oil composite used in diesels including the following compositions: small amount of alkyl fatty acid esters in the general formula of R1(OH)nCOOR2, in which, R1 is the alkyl radical of C5-C25, R2 is the alkyl of C1-C8 and n is an integer of 0-12, yet the alkyl fatty acid ester with n not equal to zero is heavier than total fatty acid ester by 40%, the content of which in the composite is 0.01-1weight% and it is prepared by catalyzing and oxidizing bio-diesel to turn the double bond in the alkyl radical to alkyl.

Description

technical field [0001] The present invention relates to a fuel composition for an internal combustion engine. Background technique [0002] Diesel is not only used as fuel in the engine but also as a lubricant for the oil delivery pump and high-pressure oil pump. If the lubricity of diesel is not good, it will not be able to provide reliable lubrication for the oil pump, resulting in reduced service life, and may cause oil leakage from the oil pump in severe cases. Generally, diesel oil with a low refining depth will not have lubricity problems, and most low-sulfur diesel oils also remove lubricating aromatics, polycyclic aromatic hydrocarbons and other lubricating components while removing sulfides, so Very poor lubricity. The results of the diesel lubricity evaluation test show that most low-sulfur diesel oils have poor lubricity, and diesel with a sulfur content of less than 0.05% may cause engine wear. The Euro IV standard to be implemented in 2005 stipulates that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/18
Inventor 杨蒸杜泽学胡见波闵恩泽
Owner CHINA PETROLEUM & CHEM CORP
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