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Application of Rosin-Rammler model for analysis of CSD in sugar crystallization

Mohebbi Zinab, J ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1002/crat.201500062
  3. Publisher: Wiley-VCH Verlag , 2015
  4. Abstract:
  5. Crystal-size distribution (CSD) is one of the most important parameters in sugar production. The objective is to grow crystals of uniform sizes or narrow CSD. CSD appears to be determined by the growth-rate history of the crystals and the relative supersaturation (SS) of the solution from which crystals growth takes place. Three methods for preparation of nucleation seeds were described and used for industrial crystallization of raw and white sugars; these are wet milling filtered sugar (ML), agitating saturated solution (AS) and powdered sugars (PD). Rosin-Rammler (RR) and mathematical models were adopted to investigate CSD and the uniformity of the produced crystals. Higher uniformity coefficients were reported for the AS seeded crystals than the other two seeding methods. Furthermore, higher crystal contents were obtained for the AS seeded white sugar batches in comparison
  6. Keywords:
  7. Growth-rate dispersion ; Grain size and shape ; Size distribution ; Sugars ; Supersaturation ; Coefficient of variation ; Crystal size distributions ; Growth rate dispersion ; Rosin-Rammler ; Uniformity coefficient ; Crystal growth from solution
  8. Source: Crystal Research and Technology ; Volume 50, Issue 11 , 2015 , Pages 873-878 ; 02321300 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/crat.201500062/abstract