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Clearing device for producing crystalline fructose with raw sugar as raw material

A technology for crystallizing fructose and clarifying device, applied in the production of sugar, sugar production, fructose production and other directions, can solve the problems of clogging activated carbon adsorption channel, clogging of filter cloth of plate and frame filter press, easy pollution of ion exchange resin, etc. The effect of reducing usage, reducing load, and reducing production costs

Pending Publication Date: 2016-08-24
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a clarification device for producing crystalline fructose with raw sugar as raw material, to solve the problem of blocking the production of crystalline fructose due to the fact that the raw sugar contains more non-sugar impurities such as suspended solids, colloids, and proteins. Or block the adsorption channel of activated carbon, resulting in a decrease in the adsorption capacity of activated carbon, causing the blockage of the filter cloth of the plate and frame filter press, resulting in difficulty in filtration and the technical problems of easy contamination of subsequent ion exchange resins

Method used

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  • Clearing device for producing crystalline fructose with raw sugar as raw material
  • Clearing device for producing crystalline fructose with raw sugar as raw material
  • Clearing device for producing crystalline fructose with raw sugar as raw material

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A clarification device for producing crystallized fructose from raw sugar, comprising a raw sugar dissolution tank 2, an acid hydrolysis tank 5, a first fructose syrup storage tank 7, a ceramic membrane module 10, an activated carbon pre-decolorization tank 13, a plate Frame filter press 14 , first ion exchange resin tower 18 and second ion exchange resin tower 21 .

[0036] The specific connection relationship is as follows:

[0037] The juice outlet 3 of the raw sugar dissolving box is connected to the juice inlet 4 of the acidolysis box, and the juice outlet 6 of the acidolysis box is connected to the first fructose syrup storage tank 7;

[0038] The juice inlet 11 of the ceramic membrane module is connected to the first fructose syrup storage tank 7, the retentate outlet 8 of the ceramic membrane module is connected back to the first fructose syrup storage tank 7, and the juice outlet 9 of the ceramic membrane module is connected to the activated carbon pre-decolori...

Embodiment 2

[0044] A method for producing crystallized fructose with raw sugar as raw material, the operation steps are:

[0045] (1) dissolving: the raw sugar is dissolved to 60°Bx with water to obtain the raw sugar back-dissolving syrup;

[0046] (2) Acid hydrolysis: adjust the pH of the raw sugar back-dissolving syrup to 1.0 with hydrochloric acid for acid hydrolysis to obtain the first fructose syrup;

[0047] (3) pH adjustment: adjust the pH of the first fructose syrup to 5.0 with NaOH solution to obtain the second fructose syrup;

[0048] (4) Ceramic membrane filtration: filter the second fructose syrup by using ceramic membrane components to obtain the third fructose syrup;

[0049] (5) Activated carbon pre-decolorization: add activated carbon to the third fructose syrup, filter after fully absorbing, and the filtrate is the fourth fructose syrup;

[0050] (6) Ion exchange resin decolorization and desalination:

[0051] Using the first ion exchange resin to decolorize the fourth...

Embodiment 3

[0069] A method for producing crystallized fructose with raw sugar as raw material, the operation steps are:

[0070] (1) dissolving: the raw sugar is dissolved to 65°Bx with water to obtain the raw sugar back-dissolving syrup;

[0071] (2) Acid hydrolysis: adjust the pH of the raw sugar back-dissolving syrup to 3.0 with hydrochloric acid for acid hydrolysis to obtain the first fructose syrup;

[0072] (3) pH adjustment: adjust the pH of the first fructose syrup to 7.0 with NaOH solution to obtain the second fructose syrup;

[0073] (4) Ceramic membrane filtration: filter the second fructose syrup by using ceramic membrane components to obtain the third fructose syrup;

[0074] (5) Activated carbon pre-decolorization: add activated carbon to the third fructose syrup, filter after fully absorbing, and the filtrate is to obtain the fourth fructose syrup;

[0075] (6) Ion exchange resin decolorization and desalination:

[0076] Using the first ion exchange resin to decolorize ...

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Abstract

A clearing device for producing crystalline fructose with raw sugar as the raw material comprises a raw sugar dissolving box, an acid hydrolysis box, a first fructose corn syrup storage box, a ceramic film assembly, an activated carbon pre-decoloring box, a frame filter press, a first ion exchange resin tower and a second ion exchange resin tower. The clearing device solves the technical problems that when raw sugar serves as the raw material to produce crystalline fructose, a large amount of suspended solids, colloid, protein and non-sugar impurities in the raw sugar block or plug an activated carbon adsorption channel, accordingly activated carbon adsorption capacity is reduced, filter cloth of the frame filter press is blocked, filtering is difficult, and subsequent ion exchange resin is easy to pollute. The clearing device reduces cost of raw materials, improves production efficiency, and facilitates product optimization and upgrading and comprehensive utilization of raw sugar resources.

Description

technical field [0001] The invention relates to a clarification device for producing crystalline fructose by using raw sugar as a raw material, and belongs to the technical field of food processing. technical background [0002] The general steps to produce crystalline fructose with raw sugar are: (1) After dissolving the raw sugar, get the raw sugar back-dissolving syrup; (2) Add hydrochloric acid to the raw sugar re-dissolving syrup to acidify the sucrose in the re-dissolving syrup (pH = 1.8-2.2), after adjusting the pH of the syrup to 5.0-7.0 with NaOH, fructose syrup is obtained; (3) After adding activated carbon to the fructose syrup for pre-decolorization, use a plate and frame filter press to filter out the carbon powder , to obtain pre-decolorized syrup; (4) pre-decolorized syrup is decolorized and desalted by ion exchange resin to obtain desalted and decolorized syrup; (5) desalted and decolorized syrup is obtained by chromatographic separation to obtain fructose sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K11/00
CPCC13K11/00
Inventor 李凯蒙丽丹凌国庆周昊张宇王丽丽范克银李宁罗莉花杭方学谢彩锋陆海勤李红
Owner GUANGXI UNIV
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