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Biological diesel fuel and preparation thereof

A biodiesel and oil technology, which is applied in the preparation of liquid hydrocarbon mixtures, biological raw materials, petroleum industry, etc., can solve the problems of poor quality and poor oxidation stability, and achieve the effect of low cost and obvious application benefits

Active Publication Date: 2008-09-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quality of biodiesel produced from waste oil is poor compared with general oil, especially the oxidation stability is poor

Method used

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  • Biological diesel fuel and preparation thereof
  • Biological diesel fuel and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2

[0033] This embodiment illustrates the production of biodiesel (iodine value 84.5gI) with castor oil 2 / g) and biodiesel produced from acidified oil (iodine value 110.9gI 2 / g) After blending, biodiesel with improved oxidation stability and low-temperature fluidity can be obtained. Example 1 is a biodiesel blended by castor oil biodiesel and acidified oil biodiesel with a volume ratio of 3:1; embodiment 2 is a blend of castor oil biodiesel and acidified oil biodiesel with a volume ratio of 1:1 produced biodiesel. Its performance is shown in Table 1.

[0034] It can be seen from Table 1 that the biodiesel produced from castor oil has good oxidation stability but poor low-temperature fluidity, while the biodiesel produced from acidified oil has poor oxidation stability but good low-temperature fluidity. After blending, Example 1 and Example 2 The oxidation stability and low-temperature fluidity of the corresponding biodiesel are improved at the same time, meeting the requireme...

Embodiment 3～5

[0038] This example illustrates biodiesel produced from palm oil (iodine value 49.6gI 2 / g) and biodiesel produced from waste oil (iodine value 109.8gI 2 / g) After blending, biodiesel with improved oxidation stability and low-temperature fluidity can be obtained. Embodiment 3 is the biodiesel blended by palm oil biodiesel and waste oil biodiesel with a volume ratio of 3:1; embodiment 4 is blended with palm oil biodiesel and waste oil biodiesel with a volume ratio of 3:2 The properties of the biodiesel produced are shown in Table 2.

[0039] Table 2

[0040]

[0041] As can be seen from Table 2, the biodiesel produced from palm oil has good oxidation stability, but poor low-temperature fluidity, while the biodiesel produced from waste oil has poor oxidation stability. The oxidation stability of the biodiesel corresponding to Example 3 and Example 4 after blending Stability and low temperature fluidity are improved at the same time, meeting the standard requirements. At t...

Embodiment 5

[0043] In this embodiment, different raw materials are mixed in advance and biodiesel meeting the standard requirements is produced by a supercritical method (referring to the method disclosed in CN1594504A).

[0044] Palm oil (iodine value 47.5gI 2 / g) and acidified oil (iodine value 107.5gI 2 / g) After mixing according to the volume ratio of 2:1, take 60g of mixed oil, put it into the autoclave together with 120g of methanol, heat the autoclave to 250°C, the autoclave pressure gauge shows 11.8MPa, maintain the temperature for half an hour, wait Cool the high-pressure reactor to 50°C, pour out the reactants, distill off excess methanol (recyclable), centrifuge to separate the generated glycerin, wash with dilute alkali solution three times, then wash with distilled water, and finally obtain biological Diesel oil 40g, analyze its performance as shown in table 3.

[0045] table 3

[0046] project

[0047] It can be seen from Table 3 that with the pre-mixed raw mat...

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PUM

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Abstract

The invention provides a biological diesel, containing at least one biological diesel A produced by natural oil with iodine content not more than 90gI2 / g and at least one biological oil B produced from waste oil, wherein volume ratio between biological diesel A and biological oil B is 1:0.05-20, preferably 1:0.1-10. Oxide stability of the obtained biological diesel reaches or approaches requirement of biological diesel standard, and waste oil is contained in raw material, which makes cost cheap, and effect of application is evident.

Description

technical field [0001] The invention relates to the composition of biodiesel and its preparation method. Background technique [0002] With the acceleration of dieselization of vehicles worldwide, the demand for diesel will increase. The depletion of petroleum resources and the improvement of people's awareness of environmental protection have greatly promoted the development of diesel alternative fuels in countries around the world. Biodiesel It has been valued by various countries for its superior environmental protection performance and renewability. [0003] The main component of said biodiesel is low-carbon alcohol ester of fatty acid, usually fatty acid methyl ester, generally through oil and low-carbon alcohol (such as C 1 ~C 5 Fatty alcohol) obtained by transesterification. [0004] Biodiesel has the three major advantages of being renewable, clean and safe, and is of great strategic significance to the adjustment of my country's agricultural structure, energy sec...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 蔺建民张永光
Owner CHINA PETROLEUM & CHEM CORP
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