Mixed fuel suitable for diesel engine

A technology for mixing fuels and diesel engines, which is applied to fuels, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of not meeting the cetane number requirement, low cetane number of high-carbon alcohols, and easy deterioration of biodiesel, and achieves The effect of improving cetane number, reducing dependence, and promoting oil-gas mixing process

Inactive Publication Date: 2017-12-26
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the addition of high-carbon alcohols to diesel / ethanol blended fuel can effectively solve the problem of stratification, the cetane number of high-carbon alcohols is low and does not meet the cetane number requirements
The addition of biodiesel can not only solve the miscibility problem of diesel / ethanol blended fuel, but also have a cetane number equivalent to that of diesel. The cost of biodiesel produced from rapeseed oil is high, and biodiesel synthesized by chemical methods is easy to deteriorate at high temperature, so biodiesel is not a good co-solvent

Method used

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  • Mixed fuel suitable for diesel engine
  • Mixed fuel suitable for diesel engine
  • Mixed fuel suitable for diesel engine

Examples

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preparation example Construction

[0030] The preparation method of the fuel of the present invention comprises the following steps: measure each component according to the volume ratio, first add ethanol to diesel to form an incomplete miscible mixed solution, and then add PODE to the mixed solution under stirring and mix evenly to obtain a blend mixed fuel.

[0031] The cetane number of the blended fuel provided by the invention is between 45-55.

[0032] The mixed fuel provided by the invention has good mutual solubility of diesel oil / ethanol / PODE, and the obtained mixed fuel has no stratification during long-term storage.

Embodiment 1

[0034] Diesel 37.5L, ethanol 37.5L, PODE 25L.

[0035] Diesel is petrochemical diesel with a cetane number of not less than 48. The mass percent purity of the ethanol is 99.5%.

[0036] The PODE is of formula CH 3 O(CH 2 O) 3 CH 3 and CH 3 O(CH 2 O) 4 CH 3 A mixture of two fuels.

[0037] The molecular formula in the PODE is CH 3 O(CH 2 O) 3 CH 3 The volume fraction of fuel is 50%.

[0038] The sulfur content in diesel is less than 10ppm.

[0039] Measure each component according to the volume ratio, first add ethanol to diesel to form an incompletely miscible mixed solution, then add PODE to the mixed solution and mix evenly under stirring to obtain a blended mixed fuel, the preparation of the mixed fuel in the following examples The method is the same as in Example 1.

Embodiment 2

[0041] Diesel 37L, ethanol 37L, PODE 26L.

[0042] Diesel is petrochemical diesel with a cetane number of not less than 48. The mass percent purity of the ethanol is 99.5%.

[0043] The PODE is of formula CH 3 O(CH 2 O) 3 CH 3 and CH 3 O(CH 2 O)4 CH 3 A mixture of two fuels.

[0044] The molecular formula in the PODE is CH 3 O(CH 2 O) 3 CH 3 The volume fraction of fuel is 60%.

[0045] The sulfur content in diesel is less than 10ppm.

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Abstract

The invention discloses a mixed fuel suitable for a diesel engine. The mixed fuel contains the following components in volume fraction: 35%-37.5% of diesel, 35%-37.5% of ethanol and 25%-30% of PODE, wherein the diesel is petroleum diesel with a cetane number not lower than 48; the mass percentage purity of ethanol is at least 99.5%; and PODE is a mixture of two fuels with molecular formulae of CH3O(CH2O)3CH3 and CH3O(CH2O)4CH3.

Description

technical field [0001] The invention relates to the field of internal combustion engine clean energy, in particular to a mixed fuel suitable for diesel engines. Background technique [0002] The number of cars in China has increased from 77 million in 2010 to 184 million in 2016. With the rapid growth of car ownership, the consumption of oil resources is increasing and environmental pollution is becoming more and more serious. Seeking a renewable and clean-burning fuel is a key way to effectively solve the shortage of petroleum resources and serious environmental pollution. [0003] Due to its high thermal efficiency, better dynamics and reliability, internal combustion engines are widely used in various fields such as automobiles, agricultural machinery, and construction machinery. In the foreseeable future, internal combustion engines will be the main prime movers of various transportation machinery. Compared with gasoline engines, diesel engines have higher thermal effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C10L1/04C10L10/12
CPCC10L1/02C10L1/04C10L10/12C10L2290/24C10L2300/20C10L1/026C10L2270/026C10L1/08C10L2200/0263C10L2200/0446
Inventor 刘海峰马俊生马桂香尧命发
Owner TIANJIN UNIV
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