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Optimizing Sugar Refining at La Union Mill-Refinery in Guatemala
Innovations in adsorbent technology, process automation, and real-time monitoring significantly enhanced sugar yield, reduced waste, and improved refinery efficiency, making La Union a model for sustainable sugar production.
This study highlights significant advancements in sugar refining at the La Union mill-refinery in Guatemala, focusing on process optimization and cost savings. Key improvements include:
- Purification Stage Optimization:
- Real-time raw-liquor color monitoring using a colorimeter and feedforward control loops for precise adsorbent dosing.
- Implementation of Ecosorb® S-1451 adsorbent with superior formulation, reducing filter aid consumption by 50% and extending filter cycles.
- Enhanced decolorization efficiency, producing fine liquor with consistent low color (180-200 ICUMSA units).
- Crystallization and Finishing Stage Optimization:
- Adoption of a One-Boiling Massecuite with backboiling scheme for efficient sucrose extraction and reduced runoff.
- Mass balance calculations to regulate runoff returning to the mill, ensuring stable crystallization and centrifugation performance.
- Real-time monitoring and hourly sugar balance reports for supervisors to maintain optimal refinery operations.
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Looking for more information on Graver’s products? In the resources center, you can visit our library of product data sheets, product specifications, and safety data sheets to get all the answers you need.

Looking for more information on Graver’s products? In the resources center, you can visit our library of product data sheets, product specifications, and safety data sheets to get all the answers you need.

Looking for more information on Graver’s products? In the resources center, you can visit our library of product data sheets, product specifications, and safety data sheets to get all the answers you need.

Looking for more information on Graver’s products? In the resources center, you can visit our library of product data sheets, product specifications, and safety data sheets to get all the answers you need.
Looking for more information on Graver’s products? In the resources center, you can visit our library of product data sheets, product specifications, and safety data sheets to get all the answers you need.

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