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Fuel oil based on petrifaction diesel and coarse biodiesel and preparation thereof

A biodiesel, petrochemical diesel technology, applied in fuel, petroleum industry, liquid carbon-containing fuel and other directions, can solve the problems of low calorific value and poor stability of biodiesel, and achieve less environmental pollution, good stability and simple preparation process. Effect

Inactive Publication Date: 2009-07-08
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the shortcomings of the prior art that there is no fuel oil compounded with biodiesel and petrochemical diesel, and the existing biodiesel has low calorific value and poor stability, and provides a fuel oil based on petrochemical diesel and crude biodiesel and The preparation method is simple, and the prepared fuel oil has good stability

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0020] Preparation of Crude Biodiesel:

[0021] Mix rapeseed oil, palm oil, cottonseed oil and other natural oils with methanol in a molar ratio of 6:1, add 2%wt KOH, stir evenly at 80°C, and let it stand for 1 hour to separate and the upper layer is Crude biodiesel, unreacted excess alcohol and catalyst residues, free glycerin, a small amount of metal ions, residual soaps, etc. .

[0022] A fuel oil based on petrochemical diesel and crude biodiesel consisting of, in weight percent:

[0023] Crude Biodiesel 20-50%

[0024] Petrochemical diesel 30-60%

[0025] Complex emulsifier 4-35%

[0026] Methanol or water or a mixture of both Balance.

[0027] The fuel oil based on petrochemical diesel oil and crude biodiesel, the compound emulsifier is a mixture of the following two types of substances, the first type is: oleic acid, palmitoleic acid, naphthenic acid, and the number of C atoms is between 40- 100 aliphatic amine polyoxyethylene ethers, sorbitan fatty acid esters wit...

Embodiment 1

[0032] Prepare a mixture of 60% of petrochemical diesel oil, 20% of crude biodiesel, 10% of compound emulsifier, 5% of methanol and 5% of water by weight percentage at room temperature, put it in a container, and stir it evenly for 60 minutes. The whole mixture is transparent. liquid. The composite emulsifier is composed of 82%wt oleic acid, 15%wt triethanolamine and 3%wt 1-octanol. The obtained calorific value was 42.8KJ / g, and the product did not appear turbid after being placed for 6 months.

Embodiment 2

[0034] At room temperature, a mixture of 52% of petrochemical diesel oil, 40% of crude biodiesel, 4% of compound emulsifier and 4% of methanol is prepared by weight percentage, put into a container, and stirred evenly until the whole mixed liquid becomes a transparent liquid. The composite emulsifier is composed of 55%wt of palmitoleic acid, 10%wt of monoethanolamine, 5%wt of 1-octanol and 30%wt of sorbitan fatty acid ester SPAN80. The obtained calorific value is 42.4KJ / g, and the product has not been clouded for 6 months.

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Abstract

The invention provides fuel oil based on petroleum diesel oil and crude biodiesel, which consists of the following substances in percentage by weight: 20 to 50 percent of crude biodiesel, 30 to 60 percent of petroleum diesel oil, 4 to 35 percent of composite emulsifying agent, and the balance being methanol or water or a mixture of the methanol and the water. The substances are mixed according to the mass percentage of the mixture and are stirred evenly to be prepared into a transparent solution. The fuel oil has good stability and has no layering, no color change and no turbidity for a long time. The fuel oil can save the petroleum diesel oil and biodiesel which are equivalent to the adding amount of the water and the methanol, and remarkably reduces the discharge amount of harmful substances in exhausted gas; at the same time, the untreated crude biodiesel is used, so equipment and energy sources which need to be consumed during the refining of the biodiesel are also saved, thereby achieving the aims of saving energy, reducing emission, and reducing production cost, and ensuring that the process is more economical.

Description

technical field [0001] The invention belongs to the technical field of fuel oil mixing, and in particular relates to a mixed fuel oil based on petrochemical diesel and crude biodiesel and a preparation method thereof. Background technique [0002] Biodiesel compounding technology has been around for decades, but it has not been widely promoted and applied so far. The reason is that the compound biodiesel produced by the prior art has many shortcomings: 1. Poor stability and short shelf life. At present, most of the compound biodiesel developed by countries in the world are white or yellow-white emulsions with a particle size of 0.01-0.1mm, poor stability and short shelf life, so they cannot be used as commercial oil turnover, which brings inconvenience to popularization and use. 2. The equipment is complicated, the investment is large, and the energy consumption is high. 3. The cost of emulsification is high. Although there is a better fuel-saving effect, fuel-saving does ...

Claims

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Application Information

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IPC IPC(8): C10L1/14
Inventor 李翔宇蒋剑春聂小安李科许玉常侠戴伟娣周永红李书龙
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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