Technical data of date juice decolorization plants

Technical data of date juice decolorization plants

Penta-Dec systems are specialized plants designed for the decolorization of date juice and date syrup. By utilizing high-affinity adsorbent resins, these systems effectively remove the dark pigments and melanoidins that naturally occur in date extracts, producing a light-colored, high-purity liquid sweetener that is ideal for use in the food and beverage industry.

Pigment Removal

The system is engineered to selectively remove the complex coloring matter found in date juice, transforming a dark brown liquid into a clear or light amber solution.

Purity Enhancement

Beyond decolorization, the process also removes trace impurities and off-flavors, resulting in a cleaner-tasting syrup with improved shelf stability.

Industrial Efficiency

The plant is designed for continuous operation with automated regeneration cycles, ensuring high throughput and consistent product quality for large-scale date processing.

Process concept and operating strategy

The Penta-Dec process utilizes advanced macroporous adsorbent resins that are specifically calibrated for the molecular structure of date pigments.

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  • High decolorization efficiency for date juice and syrup.
  • Significant improvement in product clarity and stability.
  • Fully automated operation with minimal operator intervention.
  • Scalable design for different production volumes.
  • Durable resins with long operational life.

Useful references

Date Syrup Production
Adsorption Technology

Sizing inputs:
Juice volume, initial color intensity (ICUMSA), Brix level, and required daily capacity.

Technical data for date juice decolorization plants (Penta-Dec)

Model Resin volume (L) ADS (Adsorbent) Instant flow rate (hL/h) Treated volume (hL/day) NaOH 50% consumption (L/cycle) H₂SO₄ 50% consumption (L/cycle) Water consumption (L/cycle) Plant dimensions (L x W x H)
System DEC 375m 375 11.2 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 12 // 1.300 1.200 x 1.200 x 2.300 mm
System DEC 575m 575 17.5 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 18 // 2.100 1.400 x 1.300 x 2.300 mm
System DEC 800m 800 24 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 24 // 2.800 1.500 x 1.200 x 2.400 mm
System DEC 1.000m 1.000 30 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 30 // 3.500 1.600 x 1.500 x 2.600 mm
System DEC 1.300m 1.300 39 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 40 // 4.200 1.700 x 1.500 x 2.800 mm
System DEC 2.500m 2.500 75 The cyclic service-regeneration is diversified based on the type of product to be processed and the color concentration. 76 // 8.050 1.900 x 1.900 x 2.800 mm

Three-column decolorization

Model Resin volume (L) ADS (Adsorbent) Instant flow rate (hL/h) Treated volume (hL/day) NaOH 50% consumption (L/cycle) H₂SO₄ 50% consumption (L/cycle) Water consumption (L/cycle) Plant dimensions (L x W x H)
System DEC 175 175 + 175 + 175 5.2 125 15 1.5 1.880 2.400 x 1.200 x 2.300 mm
System DEC 375 375 + 375 + 375 11.2 270 33 3.3 4.000 2.600 x 1.200 x 2.300 mm
System DEC 575 575 + 575 + 575 17.5 420 52 5.2 6.200 3.000 x 1.300 x 2.300 mm
System DEC 800 800 + 800 + 800 24 575 72 7.2 8.600 3.400 x 1.400 x 2.400 mm
System DEC 1.000 1.000 + 1.000 + 1.000 30 720 90 9 10.780 3.600 x 1.500 x 2.600 mm
System DEC 1.300 1.300 + 1.300 + 1.300 39 935 120 12 14.000 4.200 x 1.600 x 2.800 mm
System DEC 2.500 2.500 + 2.500 + 2.500 75 1800 230 23 26.900 5.200 x 1.900 x 2.800 mm

FAQ

Yes, but for optimal decolorization efficiency, it is often recommended to decolorize the juice at a lower Brix before final concentration.

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With proper regeneration and pre-filtration, the adsorbent resins can last for several years of industrial use.