In the refining process of imported raw sugar or two-step sugar production, the decolorizing resin is used to adsorb and remove the pigment substances in the liquid sugar, and the color value can be reduced from more than 600IU to less than 150IU. The saturated resin was regenerated with alkaline brine containing 10% NaCL and 1% NaOH. The regenerated waste brine is recovered by nanofiltration.
The valve array multi-unit continuous decolorization system independently developed by our company has the following advantages compared with the traditional full-chamber bed decolorization system.
1. Improve the utilization rate of resin and save more than 30% of resin investment;
2. Partition filling acrylic and styrene resin, give full play to the characteristics of the two resins, the overall adsorption capacity increased by more than 3 times; Regenerated salt and water use is reduced by more than 70%.
3. Resin regeneration system adopts series comprehensive utilization;
Comparison of operation indicators between the valve array type multi-unit continuous decolorization system and the traditional fixed bed (full chamber bed) system:
Compare items | Traditional fixed bed system | Continuous decolorization system |
Processing flow | 60M³/h | 60M³/h |
Number of decoloring columns | 3 | 20 |
Total resin content | 55M³ | 40M³ |
In and out color value (IU) | 600 → 150 | 600 → 150 |
Resin treatment times | 40BV | 150BV |
Regeneration with 10%NaCL+1%NaOH | 72M³/天 | 12M³/天 |
Regeneration with water | 252M³/天 | 48M³/天 |
In the refining process of imported raw sugar or two-step sugar production, the decolorizing resin is used to adsorb and remove the pigment substances in the liquid sugar, and the color value can be reduced from more than 600IU to less than 150IU. The saturated resin was regenerated with alkaline brine containing 10% NaCL and 1% NaOH. The regenerated waste brine is recovered by nanofiltration.
The valve array multi-unit continuous decolorization system independently developed by our company has the following advantages compared with the traditional full-chamber bed decolorization system.
1. Improve the utilization rate of resin and save more than 30% of resin investment;
2. Partition filling acrylic and styrene resin, give full play to the characteristics of the two resins, the overall adsorption capacity increased by more than 3 times; Regenerated salt and water use is reduced by more than 70%.
3. Resin regeneration system adopts series comprehensive utilization;
Comparison of operation indicators between the valve array type multi-unit continuous decolorization system and the traditional fixed bed (full chamber bed) system:
Compare items | Traditional fixed bed system | Continuous decolorization system |
Processing flow | 60M³/h | 60M³/h |
Number of decoloring columns | 3 | 20 |
Total resin content | 55M³ | 40M³ |
In and out color value (IU) | 600 → 150 | 600 → 150 |
Resin treatment times | 40BV | 150BV |
Regeneration with 10%NaCL+1%NaOH | 72M³/天 | 12M³/天 |
Regeneration with water | 252M³/天 | 48M³/天 |
