Glucose isomerization molecular sieve catalyst and preparation method thereof

A molecular sieve and isomerization technology, applied in the field of glucose isomerization molecular sieve catalyst and its preparation, can solve the problems of long synthesis time, low glucose conversion rate, poor catalyst reusability, etc., and achieve short synthesis time and high glucose conversion rate. and fructose yield, good catalytic activity
CN106563495AInactive Publication Date: 2017-04-19SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2017-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a glucose isomerization molecular sieve catalyst and a preparation method thereof. The preparation method comprises: (1) carrying out dealumination treatment on prepared Al-Beta zeolite by using an acid to obtain high silicon zeolite; (2) dissolving the high silicon zeolite and a tin source in an organic alkali to form an amorphous sol, and carrying out first hydrothermal crystallization to form a Sn-Beta primary crystal; and (3) carrying out second hydrothermal crystallization on the Sn-Beta primary crystal under the assist of a mesoporous templating agent, cooling, washing, drying, and calcining to obtain the glucose isomerization molecular sieve catalyst. According to the present invention, with the application of the prepared glucose isomerization molecular sieve catalyst in the isomerization reaction of glucose, the higher glucose conversion rate and the high fructose yield are obtained; and the preparation method has characteristics of cheap and easily available raw material and rapid synthesis, and the prepared glucose isomerization molecular sieve catalyst has good reusability.
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Description

technical field

[0001] The invention relates to a catalyst for glucose isomerization reaction, in particular to a glucose isomerization molecular sieve catalyst and a preparation method thereof. Background technique

[0002] Glucose is the most abundant monosaccharide in nature, and fructose is an isomer of glucose. In the conversion of biomass, cellulose can be hydrolyzed to obtain glucose molecules, and then undergo glucose isomerization and fructose dehydration into important platform compound. Fructose, which is an isomer of glucose, is an important sugar in nature and has great uses in the food industry, such as the production of diet sugar. In addition, because fructose can synthesize furan compounds including 5-hydroxymethylfurfural (HMF), fine chemicals can be synthesized through various chemical reactions including hydrogenation, hydrolysis or polymerization. However, since the storage of fructose in nature is lower than that of glucose, and fructose has an advant...

Claims

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