Method for producing crystalline sugar by utilizing simulated moving bed to perform continuous ion exchange

A technology of simulating moving bed and crystallized sugar, applied in the direction of microorganism-based methods, biochemical equipment and methods, sugar production, etc., can solve the problems of high cost of activated carbon, activated carbon adsorption and treatment costs, etc., achieve a good ecological environment and increase the adsorption value , Improve the effect of dissolved oxygen content in water

Active Publication Date: 2018-05-15
齐齐哈尔龙江阜丰生物科技有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the high cost of activated carbon is the main factor affecting the cost of activated carbon adsorption treatment is the problem of carbon regeneration

Method used

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  • Method for producing crystalline sugar by utilizing simulated moving bed to perform continuous ion exchange
  • Method for producing crystalline sugar by utilizing simulated moving bed to perform continuous ion exchange
  • Method for producing crystalline sugar by utilizing simulated moving bed to perform continuous ion exchange

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method utilizing simulated moving bed continuous separation to produce crystalline sugar, comprising the steps of:

[0055] Step 1) Microfiltration: Prepare starch saccharification solution (sugar content: 12%) by using corn starch enzymatic method. The starch saccharification solution is first filtered through a 1mm sieve, then passed through a 50 mesh sieve, and then filtered through a microfiltration membrane to collect the filtrate; The microfiltration membrane is an inorganic ceramic membrane with a molecular weight cut-off of 3000 Da and a microfiltration temperature of 35°C;

[0056]Step 2) Decolorization: add activated carbon accounting for 0.5% (w / w) of the filtrate to the filtrate, stir at 200rpm for 10min, then let it stand for 60min, filter through a 100-mesh sieve, and collect waste activated carbon and decolorization solution;

[0057] Step 3) Isolation and crystallization: Put the decolorized solution obtained in step 2) into a fully automatic simulated...

Embodiment 2

[0100] Through the activated carbon prepared by the regeneration process of Example 1 and Comparative Example 1-2, the performance of the regenerated activated carbon was detected, and the regeneration effect was mainly measured by the change of specific surface area, iodine adsorption value and methylene blue adsorption value, as shown in Table 1.

[0101] Table 1

[0102] index

[0103] Conclusion: After the regeneration process, the indicators of activated carbon are fully restored, and important indicators such as specific surface area, iodine adsorption value and methylene blue adsorption value are close to the standards of new activated carbon, which can be reused and save costs for enterprises. Compared with Comparative Example 1-2, the activated carbon regeneration effect of Example 1 is the best; the pigments, polypeptides, oils and other substances adsorbed by Bacillus subtilis are enzymatically hydrolyzed, and the small molecular substances further produced...

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Abstract

The invention belongs to the field of crystalline sugar processing technology, and discloses a method for producing a crystalline sugar by utilizing a simulated moving bed to perform continuous ion exchange. The method includes the following steps: step 1) microfiltration; step 2) decoloration; step 3) ion exchange and crystallization; and step 4) regeneration of activated carbon. The method provided by the invention optimizes ion-exchange parameters of the simulated moving bed, determines optimal step parameters, reduces the content of impurity sugars in the product and improves product quality through purifying glucose.

Description

technical field [0001] The invention belongs to the field of crystalline sugar processing technology, and in particular relates to a method for producing crystalline sugar by using simulated moving bed continuous separation. Background technique [0002] Corn starch is an important raw material for extracting glucose. Corn starch molecules are connected by tens of thousands of glucose units. The process of extracting glucose from starch saccharification liquid is the last step of extracting glucose from corn starch milk. Similarly, this The step-by-step process is also related to the quality of the finished glucose product. The current relatively common process is as follows: the existing production process of glucose production is as follows: starch is used as raw material, liquefied under the action of liquefying enzyme after pulping, and then saccharified by glucoamylase, and finally forms glucose with DX95% Syrup, and then enter the plate frame or drum for filtration by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K1/10C13K1/08C12P3/00C12R1/125
CPCC12P3/00C13K1/08C13K1/10
Inventor 王峰董力青王志鹏王莉莉
Owner 齐齐哈尔龙江阜丰生物科技有限公司
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