Biodiesel with low temperature liquidity and preparation method of biodiesel

A low-temperature fluidity and biodiesel technology, which is applied in biofuels, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of poor low-temperature fluidity of biodiesel, and achieve simple and quick preparation methods, high feasibility, and good low-temperature fluidity Effect

Inactive Publication Date: 2014-06-04
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a biodiesel with low-temperature fluidity in order to solve the above-mentioned pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] A biodiesel with low temperature fluidity, calculated by volume percentage, that is, its composition and content are as follows:

[0035] Direct coal liquefaction and hydrogenation to upgrade full distillate oil 2.5%

[0036] Waste oil biodiesel 97.5%.

[0037] The above-mentioned method for preparing biodiesel with low-temperature fluidity has the following steps:

[0038] After mixing 97.5ml waste oil biodiesel with 2.5ml coal direct liquefaction and hydro-upgrading full distillate oil, the biodiesel with low temperature fluidity is obtained after standing for 8-12 hours.

[0039] The biodiesel with low temperature fluidity obtained above has been tested, and its cloud point is reduced by 1°C relative to that of waste biodiesel, and its pour point is reduced by 2°C relative to that of waste biodiesel. And its pour point, cloud point, flash point, kinematic viscosity, oxidation stability, calorific value, density and acid value meet the relevant requirements...

Example Embodiment

[0040] Example 2

[0041] A biodiesel with low temperature fluidity, calculated by volume percentage, that is, its composition and content are as follows:

[0042] Direct coal liquefaction and hydrogenation to upgrade full distillate oil 5%

[0043] 95% of waste oil biodiesel.

[0044] The above-mentioned method for preparing biodiesel with low-temperature fluidity has the following steps:

[0045] After mixing 95ml of waste oil biodiesel with 5ml of coal direct liquefaction and hydro-upgrading full distillate oil, the biodiesel with low temperature fluidity is obtained after standing for 8-12 hours.

[0046] The biodiesel with low temperature fluidity obtained above has been tested, and its cloud point is reduced by 2°C relative to that of waste biodiesel, and its pour point is reduced by 3°C relative to that of waste biodiesel. And its pour point, cloud point, flash point, kinematic viscosity, oxidation stability, calorific value, density and acid value meet the relevant requiremen...

Example Embodiment

[0047] Example 3

[0048] A biodiesel with low temperature fluidity, calculated by volume percentage, that is, its composition and content are as follows:

[0049] Direct coal liquefaction and hydrogenation to upgrade full distillate oil 10%

[0050] 90% of waste oil biodiesel.

[0051] The above-mentioned method for preparing biodiesel with low-temperature fluidity has the following steps:

[0052] After mixing 90ml of waste oil biodiesel with 10ml of coal direct liquefaction and hydro-upgrading full distillate oil, the biodiesel with low temperature fluidity is obtained after standing for 8-12 hours.

[0053] The biodiesel with low temperature fluidity obtained above has been tested, and its cloud point is lower than that of waste biodiesel by 4°C, and its pour point is lower by 5°C relative to that of waste biodiesel. And its pour point, cloud point, flash point, kinematic viscosity, oxidation stability, calorific value, density and acid value meet the relevant requirements of the...

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PUM

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Abstract

The invention discloses a biodiesel with low temperature liquidity and a preparation method of the biodiesel. The biodiesel with low temperature liquidity comprises 2.5-30 percent by volume of direct coal liquefaction hydro-upgraded modified full-fraction oil and 70-97.5 percent by volume of illegal cooling oil biodiesel. The preparation method of the biodiesel comprises the step: after mixing the illegal cooking oil biodiesel and the direct coal liquefaction hydro-upgraded modified full-fraction oil, and standing for 8-12 hours to obtain the biodiesel with low-temperature liquidity. According to the biodiesel with low temperature liquidity, the pour point, the cloud point, the flash point, the kinematic viscosity, the oxidation stability, the heat value, the density and the acid value of mixed oil are detected according to the GB_T20828-2007, and accord with relevant requirements of EN14214 and ASTMD6751 for the technical performance of the biodiesel through detection. Compared with the illegal cooking oil biodiesel, the biodiesel has the advantages that the cloud point is reduced by 1-8 DEG C, the pour point is reduced by 2-10 DEG C, namely, the low temperature liquidity is remarkably improved, and the preparation method is simple and effective.

Description

technical field [0001] The invention relates to biodiesel with low-temperature fluidity and a preparation method thereof, belonging to the technical field of biomass energy utilization. Background technique [0002] Biodiesel refers to a long-chain fatty acid methyl ester obtained by transesterification of animal and vegetable oils, waste cooking oil, and engineered algae with low molecular weight alcohols (methanol or ethanol). Compared with traditional petrochemical diesel, biodiesel contains no aromatics, no sulfur, high flash point, high cetane number, good lubricity and biodegradability, renewable plant sources, non-toxic and beneficial The carbon cycle is an important substitute for ideal petrochemical diesel. However, due to the presence of a large amount of saturated fatty acid esters in biodiesel, it is easy to form waxy crystals at low temperatures, which hinders or prevents the free flow of fuel in pipes and filters and affects the normal operation of the eng...

Claims

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Application Information

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IPC IPC(8): C10L1/02
CPCY02E50/10
Inventor 韩生赵维娜王介妮艾亚妮赵磊冷鹏飞王聪
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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