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Preparation method of levulinic acid-based liquid fuel

A technology based on levulinic acid and liquid fuels, which is applied in liquid carbon-containing fuels, preparation of carboxylic acid esters, preparation of organic compounds, etc. It can solve problems such as product yield decline, catalytic system or catalyst complexity, and achieve mild reaction conditions , strong adjustable variability, a wide range of effects

Inactive Publication Date: 2019-09-06
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some research reports use n-butanol, n-pentanol or even n-hexanol as esterification reagents respectively, the corresponding catalytic system or catalyst is also relatively complicated, and some studies have also shown that with the complexity of the carbon chain structure, the corresponding products There was a noticeable drop in the yield of

Method used

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  • Preparation method of levulinic acid-based liquid fuel
  • Preparation method of levulinic acid-based liquid fuel
  • Preparation method of levulinic acid-based liquid fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0022] Add 5 mmol 1-octanol, 1 mmol levulinic acid and catalyst into the reactor, the catalyst is tantalum chloride (TaCl 5 ), tantalum bromide (TaBr 5 ), niobium chloride (NbCl 5 ), tungsten hexachloride (WCl 6 ), hafnium chloride (HfCl 4 ), the amount of catalyst added is 0.05mmol, at 80 o The reaction was carried out at C for 60 min. After the reaction, the samples were tested by gas chromatography, and the conversion rate of raw materials and product yield were calculated.

[0023] Table 1 The results of different catalysts for the synthesis of octyl levulinate from levulinic acid and 1-octanol

[0024]

Embodiment 6~9

[0026] With reference to the step of embodiment example 4, difference is: temperature of reaction is 120 o C and 100 oC , the reaction time was 15 min, and the reaction temperature was 70 o C. 60 o C, the reaction time is 30 min, repeat the above experiments, test samples, calculate the conversion rate of raw materials and product yield.

[0027] Table 2 Results of synthesis of octyl levulinate from levulinic acid and 1-octanol at different temperatures

[0028]

Embodiment 10~12

[0030] With reference to the steps of implementation example 4, the difference is: the mol ratio of 1-octanol and levulinic acid is 20:1, 8:1, 1:1, repeat the above experiment, test samples, calculate raw material conversion rate and product yield .

[0031] Table 3 The results of the synthesis of octyl levulinate from levulinic acid and 1-octanol under the conditions of different raw material additions

[0032]

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Abstract

The invention discloses a preparation method of levulinic acid-based liquid fuel, and relates to the preparation method of the liquid fuel. The levulinic acid and octadecanol reagents of the inventioncan produce C13 products by esterification, and the compounds are excellent liquid fuel. The method uses metal halides as catalysts to realize the efficient esterification of the levulinic acid and the octadecanol reagents so as to obtain the corresponding liquid fuel products. Since the levulinic acid is an important chemical intermediate derived from biomass resources, the information providedby the invention provides valuable information reference for processes of synthesizing fuel chemicals from the biomass resources. The method of the invention has the characteristics of wide selectionrange of catalysts, mild reaction conditions, fast reaction rate and high yield of products and the like.

Description

technical field [0001] The invention relates to a preparation method of liquid fuel, in particular to a preparation method of levulinic acid-based liquid fuel. Background technique [0002] Traditional fossil energy is depleting day by day, and human beings will inevitably face the problem of energy shortage in the near future. The development of renewable energy is an effective strategy to alleviate the current social development's heavy dependence on fossil energy. Biomass is the most abundant renewable substance on the earth. It can provide renewable carbon, hydrogen and other resources, which lays the foundation for the development and utilization of biomass resources. In today's society, about 58% of fossil energy is used as fuel in transportation ( Prog. Energy Combust. Sci. , 2011, 37: 52.). The preparation of fuel chemicals from biomass resources will realize the effective replacement of fossil energy. After entering the 21st century, the research on the catalyt...

Claims

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Application Information

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IPC IPC(8): C07C67/08C07C69/716B01J27/135B01J27/132B01J27/10B01J27/12C10L1/19
CPCB01J27/10B01J27/12B01J27/132B01J27/135C07C67/08C10L1/19C07C69/716
Inventor 贾松岩马娇王康军王东平何永科
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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