A Kinetic Study of the Influence of Modulated Undersaturation Operation on Crystal Size Distribution in Cooling-Type Batch Crystallization

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Hiroshi Takiyama¹  Toshinori Eto¹  Mitsuru Shoji² 

[1] Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology;R&D Center, Mitsubishi Chemical Corporation

关键词: Batch Crystallization;    Undersaturation;    Crystal Size Distribution;    Population Balance;    Modeling;   

DOI  :  10.1252/jcej.10we251

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(11)In cooling-type batch crystallization, the influence of undersaturation operation on crystal size distribution (CSD) was investigated by computational simulation. The model used considered the primary and secondary nucleation rates, size-dependent growth rate, and size-dependent dissolution rate limited by mass transfer; the crystal size dependence of the dissolution rate was determined by a Frössling-type equation. The population balance equation was directly solved by computational simulation by using the Cubic Interpolated Pseudo-particle method. The simulation successfully reproduced the order of the values of average crystal size in the experimental results for different temperature profiles. The model proved to be efficient for evaluating the influence of undersaturation operation on the CSD. In this paper, the influence of the frequency of introducing undersaturation, and the time at which undersaturation was introduced, on CSD was also discussed.

【 授权许可】

Unknown