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Composite biodiesel and preparation method thereof
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A biodiesel and composite technology, which is applied in the fields of biofuel, petroleum industry, liquid carbon-containing fuel, etc., can solve the problems of immature technology, complex process, high reaction temperature, etc.
Inactive Publication Date: 2013-12-18
ZHENGZHOU HUILV TECH +1
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Problems solved by technology
The dilution method has a simple process and low technical content, and the product quality cannot meet the requirements of vehicle fuel; the chemical transesterification method started the earliest, but the reaction temperature is high, the process is complicated, and excessive methanol is used in the reaction process. Advanced alcohol recovery device, repeated treatment process, high energy consumption; biological enzyme method is also increasingly valued, but the conversion rate of lipase to short-chain fatty alcohols (such as methanol or ethanol, etc.) is low, generally only 40% to 60%, and Enzymes are easily inactivated and the cost is high; the engineering microalgae method uses oil-rich engineering microalgae as a production method, and the technology has great development prospects, but the technology is not yet mature
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[0017] The preparation method is: decolorize, remove impurities and purify waste animal and vegetable oil and crude methanol respectively, then add surfactant, mixed aromatic hydrocarbons, petrochemical diesel oil, sec-butyl acetate and tert-amyl methyl ether in sequence according to the above ratio, and pass static Special equipment such as mixers and nano-shearers can produce biodiesel for vehicles that can be stored for more than three years without delamination.
Embodiment 2
[0019] Waste animal and vegetable oil 12wt%, crude methanol 18wt%, surfactant 8wt%, mixed aromatics 12wt%, petrochemical diesel 50wt%, sec-butyl acetate 0.2wt%, tert-amyl methyl ether 0.3wt%. Wherein the raw material composition and mass percentage of the surfactant are: isobutanol 35wt%, acidified oil 15wt%, lauryl alcohol 6wt%, petroleum ether 4wt%, triethylamine 3wt%, aviation kerosene 37wt%.
Embodiment 3
[0021] Waste animal and vegetable oil 15wt%, crude methanol 20wt%, surfactant 15wt%, mixed aromatics 6wt%, petrochemical diesel 43wt%, sec-butyl acetate 0.6wt%, tert-amyl methyl ether 0.4wt%. Wherein the raw material composition and mass percentage of the surfactant are: isobutanol 30wt%, acidified oil 15wt%, lauryl alcohol 6wt%, petroleum ether 4wt%, triethylamine 5wt%, aviation kerosene 40wt%.
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Abstract
The present invention discloses composite biodiesel and a preparation method thereof. The composite biodiesel provided by the present invention comprises the following components, by mass, 10-45% of waste animal and vegetable oil, 5-30% of crude methanol, 5-25% of a surfactant, 5-20% of BTX aromatics, 10-60% of fossil diesel, 0.05-2.5% of sec-butyl acetate and 0.01-2.5% of tertiary pentyl methylether. The preparation method for the composite biodiesel comprises: respectively carrying out decolorization, impurity removing, purification for the waste animal and vegetable oil and the crude methanol; then sequentially adding the surfactant, the BTX aromatics, the fossil diesel, the sec-butyl acetate and the tertiary pentyl methylether; sequentially adding the resulting mixture to special equipment of a static mixer, a nano shear, and the like to prepare the composite biodiesel, wherein the composite biodiesel can be stored for more than three years, and the layering phenomenon is not generated.
Description
technical field [0001] The invention belongs to the field of biodiesel, and relates to a compound biodiesel composition and a preparation method thereof. Background technique [0002] With the increasingly tense energy supply situation, the research on biodiesel is deepening. The literature has reported five methods of preparing biodiesel, namely dilution method, chemical transesterification method, biological enzyme method, engineering microalgae method and microemulsion Law. The dilution method has a simple process and low technical content, and the product quality cannot meet the requirements of vehicle fuel; the chemical transesterification method started the earliest, but the reaction temperature is high, the process is complicated, and excessive methanol is used in the reaction process. Advanced alcohol recovery device, repeated treatment process, high energy consumption; biological enzyme method is also increasingly valued, but the conversion rate of lipase to short-...
Claims
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Application Information
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