Micro-emulsion biodiesel and preparation method thereof

A technology of biodiesel and microemulsion, which is applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc. It can solve the problems of poor volatility, large amount of emulsifier, complex formula, etc., achieve thermodynamic stability, simple preparation method, and uniform dispersion Effect

Inactive Publication Date: 2012-03-21
国家石油石化产品质量监督检验中心(广东)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although these formulas can obtain microemulsified biodiesel, there are problems such as excessive emulsifier dosage, poor volatility or too complicated formula.

Method used

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  • Micro-emulsion biodiesel and preparation method thereof
  • Micro-emulsion biodiesel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The screening of embodiment 1 emulsifier

[0029] In view of the influence of emulsifiers on the stability and quality of microemulsified biodiesel, this example optimizes and screens emulsifiers, which are specifically divided into the following steps.

[0030] 1. The effect of using a single emulsifier

[0031] First study the amount of microemulsion formed when a single emulsifier is used to determine the efficiency of the emulsifier.

[0032] The emulsifiers selected in this example are octylphenol polyoxyethylene ether (OP series), nonylphenol polyoxyethylene ether (TX series), fatty alcohol polyoxyethylene ether (AEO series), cetyl trimethyl Ammonium bromide (CTAB), dioctyl sodium sulfosuccinate (AOT), Span (Span series), Tween (Tween series), triethanolamine monooleate and fatty acid amides, etc.

[0033] Experimental method: After mixing different emulsifiers and co-solvents (n-butanol) at a mass ratio of 1:1, add them dropwise to biodiesel (the oil-water rat...

Embodiment 2

[0050] The formula of the microemulsified biodiesel in this embodiment is composed of 90% biodiesel, 2% compound emulsifier, 3% co-solvent and 5% water in terms of mass percentage.

[0051] Above-mentioned biodiesel is the biodiesel prepared from jatropha fruit oil;

[0052] The above compound emulsifier is a mixture of fatty alcohol polyoxyethylene ether AEO-3 and fatty alcohol polyoxyethylene ether AEO-7, wherein fatty alcohol polyoxyethylene ether AEO-3: the mass of fatty alcohol polyoxyethylene ether AEO-7 The ratio is 1:2.

[0053] The above co-solvent is a mixture of isopropanol and n-butanol, and the mixing volume ratio is 1:4.

[0054] The microemulsion biodiesel of the present embodiment, its preparation method is as follows:

[0055] First, according to the mass ratio, the fatty alcohol polyoxyethylene ether AEO-3 and the fatty alcohol polyoxyethylene ether AEO-7 are uniformly mixed to prepare a compound emulsifier, and then at room temperature, biodiesel, compound...

Embodiment 3

[0058] The formula of the microemulsified biodiesel in this embodiment is composed of 80% biodiesel, 6% compound emulsifier, 6% co-solvent and 8% water in terms of mass percentage.

[0059] Above-mentioned biodiesel is the biodiesel prepared from soybean oil;

[0060] The above compound emulsifier is a mixture of fatty alcohol polyoxyethylene ether AEO-3 and fatty alcohol polyoxyethylene ether AEO-7, wherein fatty alcohol polyoxyethylene ether AEO-3: the mass of fatty alcohol polyoxyethylene ether AEO-7 The ratio is 1:4.

[0061] The above-mentioned co-solvent is a mixture of isobutanol and n-pentanol, and the volume ratio of the mixture is 3:2.

[0062] The microemulsion biodiesel of the present embodiment, its preparation method is as follows:

[0063] First, according to the mass ratio, the fatty alcohol polyoxyethylene ether AEO-3 and the fatty alcohol polyoxyethylene ether AEO-7 are uniformly mixed to prepare a compound emulsifier, and then at room temperature, biodiese...

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Abstract

The invention discloses a micro-emulsion biodiesel and a preparation method thereof. The formula of the micro-emulsion biodiesel comprises the following components in mass percentages: 65-90% of biodiesel, 2-12% of complex emulsifier, 3-8% of cosolvent and 5-15% of water. The micro-emulsion biodiesel disclosed by the invention has reasonable proportion and has the characteristics of clearness, transparency, uniform dispersion, rather stable thermodynamics, storage and conveyance facilitation, no lamination and the like. The micro-emulsion biodiesel disclosed by the invention can exert the advantages of the biodiesel as a reproducible energy source, can also reduce the exhaust of harmful gas NOx and carbon smoke in the process of the combustion of the biodiesel, has low cost and can be stably stored and conveyed for a long time. The micro-emulsion biodiesel disclosed by the invention has a simple preparation method and does not cause pollution to the environment during preparation.

Description

Technical field [0001] The invention involves the field of biological diesel processing technology, especially a micro -emulsion biological diesel and its preparation methods. Background technique [0002] Biological diesel is a new type of fuel with renewable and high safety. It is oil crops such as soybean and rapeseed, oil palm and Huanglian wood, such as water -based fruits, engineering microalgae, and other oil -algae aquatic plants, as well as animal oils, waste catering oil, and drinking oil.Wait liquid fuel made for raw materials.Biological diesel can mix with any comparison with petrochemical diesel, and is a high -quality petroleum diesel supplies. [0003] However, biological diesel also has its own disadvantages, such as high viscosity of biological diesel and poor volatility, NO x The emissions are also high.The micro -emulsion biological diesel can effectively reduce the viscosity of biological diesel, improve the atomization performance, and reduce NO x And carbon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10L1/198C10L1/182
Inventor 闻环吕玉平宋化灿钟少芬王希在胡江涌杨明桂林志生
Owner 国家石油石化产品质量监督检验中心(广东)
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