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Method for preparing bio-oil from Litsea pungens biomass by hydrothermal process

A technology of wood ginger and bio-oil, which is applied in the direction of fat production, fat oil/fat production, etc., to achieve the effects of cost saving, low processing temperature and environmental protection cost

Inactive Publication Date: 2013-01-16
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the field of new energy, there is no report on the preparation of bio-oil by liquefaction

Method used

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  • Method for preparing bio-oil from Litsea pungens biomass by hydrothermal process
  • Method for preparing bio-oil from Litsea pungens biomass by hydrothermal process
  • Method for preparing bio-oil from Litsea pungens biomass by hydrothermal process

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Experimental program
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Effect test

Embodiment 1

[0024] Grinding the dried japonica in a pulverizer to obtain fine granules of japonica. Take by weighing 2.5g of the treated cassava, place in a 25ml autoclave, add 16.9ml of water, without catalyst, and seal. Place the high-pressure reactor in air at room temperature, control the temperature at 25° C., and the reaction pressure is the saturated vapor pressure of water at this temperature, and the duration is 60 minutes. After the reaction was over, the reactor was opened to collect the mixture in the reactor. The reaction mixture was extracted with an organic solvent, separated and filtered to obtain an organic phase, and the organic solvent was removed by rotary evaporation to obtain a bio-oil with a bio-oil yield of 40.8 wt.%.

Embodiment 2

[0026] Grinding the dried japonica in a pulverizer to obtain fine granules of japonica. Take by weighing 2.5g of the treated cassava, place in a 25ml autoclave, add 16.9ml of water, without catalyst, and seal. Put the high-pressure reactor into the molten salt, control the temperature at 250°C, and the reaction pressure is not lower than the saturated vapor pressure of water at this temperature, and the duration is 60 minutes. After the reaction is completed, quickly cool with water, open the reactor, and collect the mixture in the reactor. The reaction mixture was extracted with an organic solvent, separated and filtered to obtain an organic phase, and the organic solvent was removed by rotary evaporation to obtain a bio-oil with a bio-oil yield of 42.7 wt.%.

Embodiment 3

[0028] Grinding the dried japonica in a pulverizer to obtain fine granules of japonica. Take by weighing 2.5g of the treated cassava, place in a 25ml autoclave, add 16.9ml of water, without catalyst, and seal. Put the high-pressure reactor into the molten salt, control the temperature at 270°C, and the reaction pressure is not lower than the saturated vapor pressure of water at this temperature, and the duration is 60 minutes. After the reaction is completed, quickly cool with water, open the reactor, and collect the mixture in the reactor. The reaction mixture was extracted with an organic solvent, separated and filtered to obtain an organic phase, and the organic solvent was removed by rotary evaporation to obtain a bio-oil with a bio-oil yield of 53.4 wt.%.

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Abstract

The invention discloses a method for preparing bio-oil from Litsea pungens biomass by hydrothermal process. The method includes the steps of firstly, crushing dried Litsea pungens in a crusher to obtain fine particles of Litsea pungens; secondly, placing weighed Litsea pungens in a high-pressure reactor, and adding water to allow for reaction; thirdly, extracting obtained mixture by organic solvent, separating and filtering to obtain organic phase, and performing rotary steaming to remove the organic solvent and obtain the bio-oil. Raw material, Litsea pungens, for the method is found in provinces and regions south of Chinese Yangtze River to Tibet and is highly adaptive to soil and environment. The raw material is non-food crop, and its roots, barks and leaves can be medicated. Oil content of Litsea pungens is high, and the yield of oil from the Litsea pungens is high. Exhaustion of petroleum energy can be relived. In addition, drying the raw material is not needed in the process of hydrothermal liquefaction, and accordingly energy consumption is lowered. The method for preparing bio-oil from Litsea pungens biomass by hydrothermal process has high application potential.

Description

technical field [0001] The invention belongs to the technical field of new energy, and relates to a new method for preparing bio-oil by hydrothermally treating arborina officinalis. Background technique [0002] As an environmentally friendly renewable resource, biomass resources can effectively alleviate the problems of energy depletion and environmental pollution caused by excessive use of fossil energy, so it has gradually become one of the hot topics in the field of alternative new energy research. [0003] Hydrothermal liquefaction is a method of thermochemical conversion of biomass using near / supercritical water as a medium. Since near / supercritical water can dissolve organic and inorganic substances at the same time, and has the advantages of being cheap and non-toxic, it can replace toxic and harmful organic solvents as the medium of chemical reactions, and water is easy to obtain, which can greatly reduce the cost of the product. Cost of production. In terms of bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04
Inventor 段培高许玉平常周凡白秀军金滨滨
Owner HENAN POLYTECHNIC UNIV
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