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Biodiesel antioxidant and application method thereof

A biodiesel and antioxidant technology, which is used in biofuels, petroleum industry, liquid carbon-containing fuels, etc., can solve the problem of high cost of adding antioxidants, and achieve the effects of increasing oxidation stability, low addition amount and low price.

Inactive Publication Date: 2016-07-06
上海天之冠可再生能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of high antioxidant addition cost in the prior art, to provide a biodiesel antioxidant that is cheap, can significantly increase the oxidation stability of biodiesel, and effectively prolong the service life of oil products and its application method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix 40% of 2,6-di-tert-butylhydroquinone with 60% of β,β,-dilaurate thiodipropionate to obtain biodiesel antioxidant.

[0020] 0.018% of the biodiesel antioxidant is added to 99.982% of the biodiesel with rapeseed oil as the raw material, stirred and dissolved at a temperature of 70°C, and a clear and transparent biodiesel solution to be stabilized is obtained.

[0021] According to the EU standard EN14112:2003 method, the induction time of this example at a temperature of 110°C is 6.20h.

[0022] The oxidation induction time of rapeseed oil-based biodiesel without adding any antioxidant was 1.51h.

[0023] It can be seen that the oxidation stability of rapeseed oil biodiesel added with antioxidants in this example is higher than that of rapeseed oil biodiesel without antioxidants added.

Embodiment 2

[0025] Mix 50% of 2,6-di-tert-butylhydroquinone with 50% of β,β,-thiodipropionate dilaurate to obtain biodiesel antioxidant.

[0026] 0.038% of the biodiesel antioxidant is added to 99.962% of the biodiesel with rapeseed oil as the raw material, stirred and dissolved at a temperature of 80°C, and a clear and transparent biodiesel solution to be stabilized is obtained.

[0027] According to the EU standard EN14112:2003 method, the induction time of this example at a temperature of 110°C is 6.82h.

[0028] It can be seen that the oxidation stability of rapeseed oil biodiesel added with antioxidants in this example is higher than that of rapeseed oil biodiesel without antioxidants added.

Embodiment 3

[0030] Mix 60% of 2,6-di-tert-butylhydroquinone with 40% of β,β,-thiodipropionate dilaurate to obtain biodiesel antioxidant.

[0031] Add 0.055% of the biodiesel antioxidant to 99.945% biodiesel made from waste oil, stir and dissolve at a temperature of 80° C. to obtain a clear and transparent biodiesel solution to be stabilized.

[0032] According to the EU standard EN14112:2003 method, the induction time of this example at a temperature of 110°C is 6.68h.

[0033] The oxidation induction time of waste oil-based biodiesel without antioxidant was 2.55h.

[0034] It can be seen that the oxidation stability of the waste oil biodiesel added with antioxidants in this embodiment is greatly improved compared with the oxidation stability of waste oil biodiesel without added antioxidants.

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PUM

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Abstract

The present invention is a biodiesel antioxidant and an application method thereof. The biodiesel antioxidant is prepared from a primary antioxidant and a secondary antioxidant by compounding, the primary antioxidant is 2,6-di-tert-butylhydroquinone, the secondary antioxidant is beta, beta,-thiodipropionic acid dilauryl ester, and the weight percentage of the primary antioxidant is 40-60%. The biodiesel antioxidant can significantly increase the oxidation stability of biodiesels, greatly improves the quality and grade of the biodiesels, is low in price and low in dosage, can effectively extend the service life of oil products. At the same time, the added antioxidant has no obvious effect on other physical and chemical properties of the biodiesels.

Description

technical field [0001] The invention discloses a biodiesel antioxidant and an application method thereof. Background technique [0002] Biodiesel is a high-quality diesel substitute with outstanding environmental friendliness and renewability. The development of biodiesel industry is of great significance for ensuring oil security, protecting the ecological environment, promoting agricultural production and achieving sustainable development. . my country has promulgated national biodiesel standards GB / T25199-2010 "Biodiesel Blending Fuel (B5)" and GB / T20828-2007 "Biodiesel Blending with Diesel Engine Fuel (BD100)", which has effectively promoted the development of the domestic industry. [0003] Biodiesel is fatty acid methyl ester produced from oily animal and vegetable oils, waste oils, engineering algae, etc., through transesterification with methanol. It is a renewable clean oxygenated liquid fuel. Because biodiesel generally contains more unsaturated fatty acid methyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/24C10L1/183C10L1/02
CPCY02E50/10
Inventor 史吉平刘钺张龙张志杜风光
Owner 上海天之冠可再生能源有限公司
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