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Process for preparing biodiesel and nervonic acid by using purpleblow maple oil as raw material

A technology of biodiesel and maple ingot, applied in the direction of biofuel, biological raw materials, chemical instruments and methods, etc., can solve the problems of ineffective use of by-products and high energy consumption, increase comprehensive utilization benefits, simple production process, The effect of reducing production costs

Active Publication Date: 2011-04-13
云南金枫生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent application 200710018195.2 discloses a method of extracting nervonic acid from ingot maple oil by molecular distillation technology. This technology uses 6-stage molecular distillation to extract nervonic acid, but the energy consumption is high, and the by-products cannot be effectively utilized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Put 400g of maple ingot refined oil and 120g of methanol into a 1000ml three-neck round bottom flask, place it in an electric heating constant temperature jacket, stir evenly, and then add 8g of SO 4 2- / ZrO 2 , heated to 70 ° C, stirred and refluxed, and reacted for 3 hours, then stopped heating and stirring. The reactants were then poured into a centrifuge cup and centrifuged to separate the SO 4 2- / ZrO 2 , the crude methyl ester and crude glycerin were left to separate layers, and the upper layer was distilled to remove methanol, and was distilled in a distillation pot with a pressure of 1250 Pa and a temperature of 170 ° C to obtain 396 g of biodiesel. The mass fraction of fatty acid methyl ester in the biodiesel product determined by gas chromatography is 99.2%, which is in line with the main performance index of 0# diesel. Methanol was distilled off in the lower layer to obtain 39.5 g of glycerin. The bottom liquid was further distilled under the conditions...

Embodiment 2

[0018] Put 400g of maple ingot refined oil and 140g of ethanol into a 1000ml three-necked round-bottomed flask, place it in an electric heating thermostat, stir evenly, and then add 8g of SO 4 2- / ZrO 2 , heated to 80°C, stirred and refluxed, and reacted for 3 hours, then stopped heating and stirring. The reactants were then poured into a centrifuge cup and centrifuged to separate the SO 4 2- / ZrO 2 , the crude methyl ester and crude glycerin were left standing to separate layers, the upper layer was distilled to remove methanol, and the pressure was 500 Pa, and the temperature was distilled in a distillation pot at a temperature of 140° C. to obtain 394 g of biodiesel. The mass fraction of fatty acid methyl ester in the biodiesel product determined by gas chromatography is 98.4%, which is in line with the main performance index of 0# diesel. Methanol was distilled off in the lower layer to obtain 39.0 g of glycerin. The bottom liquid was further distilled at a pressure ...

Embodiment 3

[0020] Put 400g Yuanbao maple refined oil and 120g methanol into a 1000ml three-neck round bottom flask, place it in an electric heating constant temperature jacket, stir evenly, and then add 6g SO 4 2- / TiO 2 , heated to 70°C, stirred and refluxed, and stopped heating and stirring after reacting for 4 hours. The reactants were then poured into a centrifuge cup and centrifuged to separate the SO 4 2- / TiO 2 , the crude methyl ester and crude glycerin were left to stand and layered, the upper layer was distilled to remove methanol, and distilled in a distillation still with a pressure of 2000Pa and a temperature of 200°C to obtain 395g of biodiesel, and the fatty acid formaldehyde in the biodiesel product obtained was determined by gas chromatography. The mass fraction of ester is 99.1%, which meets the main performance index of 0# diesel. Methanol was distilled off in the lower layer to obtain 38.5 g of glycerin. The bottom liquid was further distilled under the conditio...

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Abstract

The invention discloses a method of using acer truncatum oil as raw material to make biodiesel and nervonic acid. The method comprises the following steps that: acer truncatum oil is mixed well with methanol or ethanol; solid superacid catalyst is added in to carry out transesterification; mixed products of transesterification are filtered after complete reaction to separate catalyst out; mixed fatty acid methyl ester or ethyl ester and glycerol phase are centrifugally separated; the mixed fatty acid methyl ester or ethyl ester is distilled to remove methanol or ethanol and then distilled again to obtain the fatty acid methyl ester or ethyl ester with low boiling point, namely the needed biodiesel; liquid at reactor bottom is distilled further, and the high boiling point part is accumulated to obtain nervonic acid methyl ester or ethyl ester; the needed nervonic acid can be obtained through hydrolysis, separation and crystallization. The method obtains two products through one-time feeding, has simple production process and convenient post-treatment process, produces no wastewater, can use the solid superacid catalyst repeatedly, greatly reduces the production cost of biodiesel, and increases the comprehensive utilization benefit of acer truncatum oil.

Description

technical field [0001] The invention belongs to the technical field of ingot maple oil application, and in particular relates to a method for preparing biodiesel and nervous acid by using ingot maple oil as a raw material. Background technique [0002] Biodiesel is a clean oxygenated fuel synthesized from animal and vegetable oils or long-chain fatty acids and low-carbon alcohols. It has the advantages of being renewable, easy to biodegrade, and the pollutants emitted by combustion are lower than that of petrochemical diesel, and basically has no greenhouse effect. It is an ideal substitute for petroleum fuels. In recent years, with the intensification of global energy shortage, the development of alternative energy sources has become an inevitable trend, and biodiesel, an environmentally friendly clean and renewable green energy source, has gradually become a research hotspot. The production and application of biodiesel has a history of more than ten years in foreign count...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00C07C57/03C11C3/10B01J27/04B01J21/06
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 刘祥义陈昌祥熊智王双选
Owner 云南金枫生物科技有限公司
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