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Sugar products and fabrication method thereof

A technology for products and saccharides, which is applied in the field of low-temperature, fast and high-yield sugar products and their preparation, can solve the problems of many by-products, high equipment grade requirements, and high dilute acid hydrolysis temperature, and achieves the effect of high sugar yield

Inactive Publication Date: 2014-04-09
IND TECH RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this method requires complex pretreatment process, low hydrolysis activity, slow speed, and cellulolytic enzymes are expensive
[0005] Dilute acid hydrolysis usually uses relatively cheap sulfuric acid as a catalyst, but it needs to be operated at high temperature (greater than 200°C) in a corrosion-resistant pressure vessel, requiring high equipment grades; at the same time, dilute acid hydrolysis has high temperature, many by-products, and sugar production. low rate
Concentrated acid hydrolysis can be carried out at lower temperature and normal pressure, but there are problems such as strong corrosiveness of concentrated acid, complex post-treatment process of hydrolyzate, high acid consumption, and difficult recovery

Method used

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  • Sugar products and fabrication method thereof
  • Sugar products and fabrication method thereof
  • Sugar products and fabrication method thereof

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preparation example Construction

[0012] An embodiment of the present disclosure provides a method for preparing a sugar product, which includes the following steps. Firstly, formic acid is mixed with lithium, magnesium, calcium, zinc or iron chloride salts or bromide salts or heteropolyacids to form a mixed solution. Next, adding a cellulosic biomass into the mixture to carry out a dissolution reaction. Afterwards, water is added to the mixture to carry out a hydrolysis reaction to obtain a sugar product.

[0013] The weight percent of the above-mentioned formic acid in the mixed solution is generally between 60-97wt%.

[0014] The weight percentage of the lithium chloride salt or bromide salt in the mixed liquid is generally between 5-20 wt%, or 10-20 wt%.

[0015] The weight percentage of the magnesium chloride salt or bromide salt in the mixed liquid is generally between 10-30wt%, or 15-20wt%.

[0016] The weight percentage of the above-mentioned calcium chloride salt or bromide salt in the mixed liquid...

Embodiment 1-1

[0028] First, mix formic acid and zinc chloride (ZnCl2) and heat it to form a mixed solution (60wt% formic acid, 40wt% zinc chloride). Next, add Cellulose (Sigma company, Avicel-pH-105-27NI) to mixed solution ( Cellulose 15wt%), to carry out a dissolving reaction (temperature 50 ℃, time 20 minutes), form yellow homogeneous phase transparent liquid, as set forth in Table 1.

Embodiment 1-2

[0030] First, mix formic acid and zinc chloride (ZnCl 2 ) and heated to form a mixed solution (60wt% formic acid, 40wt% zinc chloride). Then, add α-cellulose (Sigma Company, C8002) to the mixed solution (α-cellulose 15wt%), to carry out a dissolution reaction (temperature 50 ° C, time 20 minutes), forming an amber homogeneous transparent liquid, as shown in the table 1 contained.

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Abstract

In an embodiment of the present disclosure, a method for fabricating a sugar product is provided. The method includes mixing formic acid and lithium chloride, magnesium chloride, calcium chloride, zinc chloride or iron chloride or lithium bromide, magnesium bromide, calcium bromide, zinc bromide or iron bromide or heteropoly acid to form a mixing solution, adding a cellulosic biomass to the mixing solution for a dissolution reaction, and adding water to the mixing solution for a hydrolysis reaction to obtain a sugar product. The present disclosure also provides a sugar product fabricated from the method.

Description

technical field [0001] The present disclosure relates to a sugar product (Sugar products) and a preparation method thereof, in particular to a low-temperature, fast and high-yield sugar product and a preparation method thereof. Background technique [0002] The world is facing the problem that oil reserves are gradually being exploited and the greenhouse effect of the earth's atmosphere continues to expand. In order to ensure the sustainable survival of human beings, it is a world trend to gradually reduce the use of fossil energy and petroleum raw materials, and to develop new renewable forms of energy and raw materials. . [0003] Lignocellulose is the main component of biomass and is the most abundant organic substance on earth. Lignocellulose is mainly composed of cellulose, hemicellulose and lignin, and their proportions are about 38-50%, 23-32% and 15-25%. Glucose can be produced after hydrolysis of cellulose, but due to the strong hydrogen bond and van der Waals for...

Claims

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Application Information

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IPC IPC(8): C13K1/02C13K13/00
CPCC13K13/002C13K1/02
Inventor 施瑞虎陈嘉元林惠聪李宏台万皓鹏洪伟钧
Owner IND TECH RES INST
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