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Biodiesel fuel and preparation method thereof

A bio-based, diesel technology, used in the preparation of organic compounds, biofuels, and carboxylate esters, etc., can solve the problems of unrealizable development routes, poor low-temperature fluidity and oxidation stability, and high raw material costs, and achieve great economic value. and social benefits, reducing pollution and saving mineral resources

Inactive Publication Date: 2013-09-25
俏东方生物燃料集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development route of fatty acid methyl ester biodiesel cannot meet the above requirements
Therefore, it is necessary to explore a more economical and feasible biomass energy route. In addition, the fatty acid methyl ester product is a kind of mixed fatty acid methyl ester, which has high raw material cost, poor low-temperature fluidity and oxidation stability, and the processing problem of by-product glycerol in the production process. , the blending ratio allowed internationally is only 3-5%

Method used

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  • Biodiesel fuel and preparation method thereof
  • Biodiesel fuel and preparation method thereof
  • Biodiesel fuel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Add the prepared saturated sodium chloride solution of sodium hydroxide to the reaction kettle, and then add levulinic acid and furfural with a molar ratio of 1:1 in sequence. Turn on the stirring, raise the temperature to 35°C at 0.5°C / min, and the pressure is 0.2MPa. After 30 minutes of reaction, the yield of 6-furfurylidene levulinic acid is 38%.

[0033] 2. Select the mixed alcohols as methanol, butanol and octanol, and the molar ratio is 4:2:1. Add the mixed alcohol and 6-furfurylidene levulinic acid with a molar ratio of 4:1 into the esterification reaction kettle. The esterification reaction temperature is 240° C., the relative pressure is 2 MPa, and the reaction time is 60 minutes. The conversion rate of 6-furfurylidene levulinic acid is 100%, and the yield of methyl 6-furfurylidene levulinate, butyl 6-furfurylidene levulinate and octyl 6-furfurylidene levulinate in the product The rate is 95%.

[0034] 3. Prepare copper-silver-cerium catalyst by co-precip...

Embodiment 2

[0040] 1. Add the prepared saturated sodium chloride solution of sodium hydroxide to the reaction kettle, and then add levulinic acid and furfural with a molar ratio of 1:2 in sequence. Start the stirring, raise the temperature to 35°C at 0.5°C / min, and the pressure is 0.4MPa. After 30 minutes of reaction, the yield of 6-furfurylidene levulinic acid is 43%.

[0041] 2. Select the mixed alcohols as butanol, pentanol and octanol, and the molar ratio is 4:2:1. Add the mixed alcohol and 6-furfurylidene levulinic acid with a molar ratio of 2:1 into the esterification reaction kettle. The esterification reaction temperature is 240° C., the relative pressure is 2 MPa, and the reaction time is 60 minutes. The conversion rate of 6-furfurylidene levulinic acid is 100%, and the yield of 6-furfurylidene levulinate butyl, 6-furfurylidene levulinate pentyl, 6-furfurylidene octyl levulinate in the product is 100%. The rate is 92%.

[0042]3. Prepare copper-silver-cerium catalyst by co-pre...

Embodiment 3

[0048] 1. Add the prepared saturated sodium chloride solution of sodium hydroxide to the reaction kettle, and then add levulinic acid and furfural with a molar ratio of 1:2 in sequence. Start the stirring, raise the temperature to 40°C at 0.5°C / min, and the pressure is 0.6MPa. After 30 minutes of reaction, the yield of 6-furfurylidene levulinic acid is 45%.

[0049] 2. Select the mixed alcohols as methanol, isobutanol, cyclopropanol, octanol, and the molar ratio is 4:4:1:1. Add the mixed alcohol and 6-furfurylidene levulinic acid with a molar ratio of 8:1 into the esterification reaction kettle. The esterification reaction temperature is 280° C., the relative pressure is 4 MPa, and the reaction time is 40 minutes. The conversion rate of 6-furfurylidene levulinic acid is 100%, and the yield of 6-furfurylidene levulinate butyl, 6-furfurylidene levulinate pentyl, 6-furfurylidene octyl levulinate in the product is 100%. The rate is 93%.

[0050] 3. Prepare copper-silver-cerium ...

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Abstract

The invention discloses biodiesel fuel and a preparation method thereof. The biodiesel fuel is prepared by using biomass derivative furfural and acetylpropionic acid as raw materials and by the technology of condensation, oxidation, esterification and complex formulation. The biodiesel fuel contains components of 6-furfurylidene levulinate, methyl furoate and methyl levulinate or ethyl levulinate with carbon atom number between 11 and 18. The advantages comprise that: the biodiesel fuel has high cetane number and oxidation stability, and its thermal efficiency is raised 30-40% than that of tradition biodiesel fuel. The biodiesel fuel can 100% directly be used, and can also be mixed with petroleum diesel fuel for using.

Description

technical field [0001] The invention belongs to the field of energy utilization, and in particular relates to a bio-based diesel oil and a preparation method thereof. Background technique [0002] Biodiesel usually refers to fatty acid methyl esters produced from oil raw materials. The main preparation methods include transesterification, direct mixing, microemulsion, high temperature pyrolysis, etc. The industrial production is mainly based on transesterification, including acid Catalytic, base-catalyzed exchange method. At present, the main direction of technological development is high-efficiency, environmentally friendly catalytic materials such as biological enzymes and solid catalysts, as well as the application of catalyst-free supercritical production processes. In terms of product technology, it tends to have high cetane number and low sulfur content. development of high performance biodiesel. [0003] However, the net gains in energy and greenhouse gas emissions ...

Claims

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Application Information

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IPC IPC(8): C10L1/02C07D307/68C07C69/716C07C67/08
CPCY02E50/10
Inventor 颉二旺张维
Owner 俏东方生物燃料集团有限公司
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