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Method for producing liquid biological energy sources by using monosaccharide, oligosaccharide and sugar alcohol

A technology of bio-energy and oligosaccharides, which is applied in the production of liquid bio-energy, using monosaccharides, oligosaccharides and their sugar alcohols to produce liquid bio-energy, which can solve the problems of high energy consumption in distillation, high consumption of sugar, waste of resources, etc. , to achieve the effect of wide source of raw materials, less environmental pollution and short reaction time

Inactive Publication Date: 2006-11-15
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, there are strict requirements on the fermentation substrate, and fiber polysaccharides cannot be used; second, a large amount of sugar is consumed in the fermentation process to maintain the growth of yeast, resulting in waste of resources; third, distillation consumes a lot of energy
Therefore, the use of sugar fermentation to produce alcohol as a bioenergy source has not been widely promoted due to cost issues

Method used

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  • Method for producing liquid biological energy sources by using monosaccharide, oligosaccharide and sugar alcohol
  • Method for producing liquid biological energy sources by using monosaccharide, oligosaccharide and sugar alcohol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] At room temperature, add glucose, methanol, dry silica gel and concentrated sulfuric acid to the reactor at a ratio of 1:4:3~5:0.1~0.3 (mass:volume:mass:mass), reflux at 100°C for 3 hours, and cool . Add dry calcium hydroxide 3 times the mass of sulfuric acid to remove sulfuric acid (newly formed water is absorbed by silica gel), filter, and the filtrate is etherified bioenergy; it can also be distilled directly at 70-75°C without adding calcium hydroxide product. Wash the silica gel with water, dry it and reuse it.

[0019] Distillation increases energy consumption, but removes residual glucose.

Embodiment 2

[0021] At normal temperature, add xylose, methanol, anhydrous sodium sulfate and concentrated sulfuric acid into the reactor according to 1:5:2~4:0.1~0.2 (mass:volume:mass:mass), and reflux at 100°C for 2 hours, let cool. Add dry calcium hydroxide 3 times the mass of sulfuric acid to remove sulfuric acid. Sodium sulfate is removed by filtration, and the filtrate is etherified bioenergy; the product can also be directly distilled at 70-75°C.

[0022] Distillation increases energy consumption, but removes residual xylose.

Embodiment 3

[0024] At room temperature, add arabinose, methanol, molecular sieves and concentrated sulfuric acid into the reactor at a ratio of 1:6:3~6:0.2~0.4 (mass:volume:mass:mass), reflux at 100°C for 1 hour, and cool . Add dry calcium hydroxide 3 times the mass of sulfuric acid to remove sulfuric acid. Filtration, the filtrate is the etherified bioenergy; the product can also be directly distilled at 70-75°C without adding calcium hydroxide.

[0025] Distillation increases energy consumption but removes residual arabinose.

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PUM

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Abstract

The invention relates to a method for producing liquid bioenergy by using monosaccharide, oligosaccharide and sugar alcohol. The method comprises the following steps: A. using monosaccharides, oligosaccharides and sugar alcohols as raw materials, adding methanol, dehydrating agent and concentrated sulfuric acid for reflux reaction to etherify the sugars; B. distilling at 70-75°C , collect the condensate; or add dry calcium hydroxide to remove concentrated sulfuric acid, filter, and collect the filtrate; the condensate or filtrate obtained above is the etherified bioenergy, which is a kind of boiling point and ignition point comparable to methanol, combustion value and firepower Liquid bioenergy greater than methanol. The present invention has successfully obtained a liquid bioenergy that is liquid at room temperature, has a boiling point and ignition point equivalent to methanol, and has a combustion value and firepower greater than that of methanol. Currently commonly used gasoline or diesel.

Description

technical field [0001] The invention belongs to the field of biological energy, and relates to a method for producing liquid biological energy, in particular to a method for producing liquid biological energy by utilizing monosaccharides, oligosaccharides and sugar alcohols. Background technique [0002] Sugar is the most abundant renewable resource on earth. In today's increasingly tense energy environment, it is very urgent to develop bioenergy that uses sugar as raw material to replace fossil energy. At present, the main method of using sugar to produce bioenergy is to use fermentation to produce alcohol, but alcohol fermentation also has some defects. First, there are strict requirements on the fermentation substrate, and fiber polysaccharides cannot be used; second, a large amount of sugar is consumed in the fermentation process to maintain the growth of yeast, resulting in waste of resources; third, distillation consumes a lot of energy. Therefore, the use of sugar f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/00
Inventor 欧仕益汪勇刘鹏展
Owner JINAN UNIVERSITY