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Application of Rosin–Rammler model for analysis of CSD in sugar crystallization
Author(s) -
Zinab Javad Mohebbi,
Alamolhoda Ali Asghar,
Moghaddam Firouz Matloubi,
Nayeri Sirous
Publication year - 2015
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201500062
Subject(s) - supersaturation , seeding , nucleation , crystallization , sugar , crystal growth , crystal (programming language) , materials science , raw material , seed crystal , chemical engineering , chemistry , crystallography , single crystal , thermodynamics , organic chemistry , engineering , physics , computer science , programming language
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.