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Method for treating sugarcane mixed clear juice

A processing method and technology for clear juice, which are applied in the field of processing sugarcane mixed clear juice by membrane method, can solve the problems of high steam consumption and inability to reach the refining index, etc., and achieve the effects of high degree of automation, long service life and low operating cost.

Active Publication Date: 2013-07-10
HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the above-mentioned process, the obtained sucrose can only meet the first-grade or superior index in the white sugar standard GB317-2006, and cannot reach the refined index. At the same time, a large amount of steam is consumed in the evaporation process

Method used

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  • Method for treating sugarcane mixed clear juice
  • Method for treating sugarcane mixed clear juice
  • Method for treating sugarcane mixed clear juice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take the mixed clear juice, the indicators are as follows:

[0026] Calibration Brix BX 0

Luminosity conversion (sucrose%)

Simple purity (%)

Turbidity (NTU)

Color value IU

15.8

13.79

87.30

7.61

959.91

[0027] The mixed clear juice is a mixed liquid of clear juice and filtered juice obtained by processing the squeezed sugarcane juice through a clarification process.

[0028] Then the above-mentioned mixed clear juice is sent to the first-stage ultrafiltration membrane, the molecular weight cut-off of the ultrafiltration membrane is 50,000 Daltons, the operating pressure is controlled at 0.1MPa, the temperature is controlled at 25°C, the filtration time is 24 minutes, and the pH of the feed liquid is controlled at 7 , the index of the clear liquid obtained by filtration is shown in the table below, the first-stage ultrafiltration is filtered, and the recovery rate is controlled to 60%; the concentrated liquid filte...

Embodiment 2

[0034] The mixed clear juice identical with embodiment 1, index is as follows:

[0035] Calibration Brix BX 0

Luminosity conversion (sucrose%)

Simple purity (%)

Turbidity (NTU)

Color value IU

15.8

13.79

87.30

7.61

959.91

[0036] The mixed clear juice is a mixed liquid of clear juice and filtered juice obtained by processing the squeezed sugarcane juice through a clarification process.

[0037] Then the above-mentioned mixed clear juice is sent to the first-stage ultrafiltration membrane, the molecular weight cut-off of the ultrafiltration membrane is 80,000 Daltons, the operating pressure is controlled at 0.2MPa, the temperature is controlled at 30°C, the filtration time is 15 minutes, and the pH of the feed liquid is controlled at 7 , the first-stage ultrafiltration is used for filtration, and the recovery rate is controlled to 70%; the dope filtered by the first-stage ultrafiltration membrane is evaporated to produce ...

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Abstract

The invention discloses a treatment technology for sugarcane mixed clear juice, and in particular relates to a membrane method for treating the sugarcane mixed clear juice. The method comprises the following steps of: filtering the mixed clear juice through a first stage ultrafiltration membrane; filtering the obtained clear liquor through a second stage ultrafiltration membrane; evaporating the strong liquor filtered by the first stage ultrafiltration membrane for preparing sugar; mixing the mixed clear juice and the strong liquor filtered by the second stage ultrafiltration membrane and filtering by the first stage ultrafiltration membrane; and concentrating the thin liquor filtered by the second stage ultrafiltration membrane by a membrane concentration device so as to obtain a concentrated solution and plain water, wherein the molecular weight cutoff of the first stage ultrafiltration membrane is 50000-100000 Dalton, and the molecular weight cutoff of the second stage ultrafiltration membrane is 1000-20000 Dalton. The method has the advantages that the energy consumption can be greatly lowered, the equipment has low operating cost and long service life, the quality of the product is improved sharply, the degree of automation is higher and the method is more environment-friendly.

Description

technical field [0001] The invention relates to a processing technology for sugarcane mixed clear juice, in particular to a processing method for processing sugarcane mixed clear juice by a membrane method. Background technique [0002] Sucrose is a disaccharide with white crystals. Sucrose is the main product of photosynthesis and is widely distributed in plants, especially in beet, sugarcane and fruit. Sucrose is the main form of sugar storage, accumulation and transport in plants. The raw materials of sucrose are mainly sugar cane and sugar beets. Crush sugar cane or sugar beet with a machine, collect the sugar juice, filter it, treat it with lime to remove impurities, and then bleach it with sulfur dioxide; boil the treated sugar juice to remove impurities that sink to the bottom and scrape off the foam that floats to the surface , and then turn off the heat until the syrup crystallizes into sucrose. In my country, sugarcane is used as raw material to produce sucrose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13B20/16C13B25/00
Inventor 谢柏明邱晖丁国良赵经纬方丽娜汪勇潘旭东
Owner HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
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