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Use method of water in glucose production

A glucose and reclaimed water technology, applied in the direction of glucose production, sugar production, sugar production, etc., can solve the problems of waste of water resources, loss of water resources, large amount of flushing water, etc., to save production costs, reduce burdens, and increase temperature Effect

Inactive Publication Date: 2010-11-24
WEIFANG SHENGTAI PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This commonly used production process has the following problems: First, tap water is used for powder adjustment, and the water consumption is generally 2 tons per ton of product, while a large amount of condensed water produced in the steps of evaporation of sugar solution and drying of mother liquor is discharged outside, causing water resources The second is that the centrifugal sugar washing step uses softened water prepared by reverse osmosis process with tap water. A large amount of concentrated water after preparing softened water cannot be reused because the conductivity is as high as 669. It can only be discharged outside, which also causes water loss. Serious waste of resources; and when the ion exchange column removes impurities, it is necessary to use tap water to wash out the sugar solution in the ion exchange column after the ion exchange column fails. heavy burden

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The use method of water in the glucose production, comprises the following steps:

[0017] Use condensed water, concentrated water, and washing liquid with sugar content ≤ 8 after the ion exchange column fails to adjust the powder, adjust the starch into powdered milk, liquefy and saccharify the powdered milk to obtain sugar liquid, filter the sugar liquid, inactivate enzymes and decolorize , use an ion exchange column to remove impurities. When the ion exchange column fails to wash with water, the washing liquid when the sugar content is ≤ 8 is used to adjust the powder; the removed sugar solution is evaporated and decrystallized. The temperature is 85°C, the heat is exchanged with the centrifuged mother liquor through the heat exchanger, and after the temperature drops to 25°C, the demineralized water is produced, and the remaining condensate after the demineralized water is produced is used to adjust the powder; the crystallized raw sugar is centrifugally washed The ...

Embodiment 2

[0019] The use method of water in the glucose production, comprises the following steps:

[0020] Use condensed water, concentrated water, and washing liquid with sugar content ≤ 8 after the ion exchange column fails to adjust the powder, adjust the starch into powdered milk, liquefy and saccharify the powdered milk to obtain sugar liquid, filter the sugar liquid, inactivate enzymes and decolorize , use an ion exchange column to remove impurities. When the ion exchange column fails to wash with water, the washing liquid when the sugar content is ≤ 8 is used to adjust the powder; the removed sugar solution is evaporated and decrystallized. The temperature is 80°C, heat exchange with the centrifuged mother liquor through the heat exchanger, and after the temperature drops to 25°C, softened water is produced, and the remaining condensed water after softened water is produced to adjust the powder; the crystallized raw sugar is centrifugally washed The sugar is obtained from the mo...

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PUM

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Abstract

The invention discloses a use method of water in glucose production. The glucose production includes the steps of mixing by water, liquefying, saccharification,ion exchange for removing impurities, evaporation, centrifugation and affination for obtaining mother liquor and mother liquor drying; wherein the centrifugation and affination step adopts softened water obtained by reverse osmosis for affination, and the water used in mixing and the water for producing softened water by reverse osmosis are condensed water produced by the evaporation and drying steps. The invention comprehensively utilizes the condensed water, concentrated water and water for washing ion exchange column, thus being sufficient for normal production water supply; production waste water is comprehensively recycled and utilized, thus not only reducing production cost but also having good social benefit.

Description

technical field [0001] The invention relates to the technical field of preparing glucose from starch, in particular to the improvement of a water-using process in glucose production. Background technique [0002] Starch is a carbohydrate polysaccharide, which is a polymer compound composed of many glucose units. Depending on its hydrolysis depth, it can produce glucose, maltodextrin, oligosaccharides, fructose syrup, etc., among which the production capacity is the largest, the use is the most, and the development The fastest is glucose. At present, the production process of producing glucose from starch is generally as follows: the starch is made into powdered milk with water, the powdered milk is liquefied, saccharified into glucose, filtered, enzyme inactivated, decolorized, ion exchange column is used to remove impurities, sugar solution is evaporated, crystallized, and sugar is washed by centrifugation. Obtain the mother liquor and the drying steps of the mother liquor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K1/06C13K1/08
Inventor 刘清太景栋孟祥婷张冰慧孙峰
Owner WEIFANG SHENGTAI PHARM CO LTD
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