کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
172926 458569 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A more efficient simulator of particle size distribution in slurry phase polyolefin systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A more efficient simulator of particle size distribution in slurry phase polyolefin systems
چکیده انگلیسی

The Segregation Approach is used as an alternative to Population Balance Modelling (PBM) to predict particle size distributions in olefin polymerisation reactors. The Segregation Approach affords simpler formulation, more explicit integration of mixing characteristics, particle growth and initial size distribution, and easier extension to unsteady-state conditions and complex kinetics.The evolution of a non-uniformly sized feed of catalyst particles in a polymer reactor system is simulated. While the two approaches yield identical predictions of the particle size distribution, in terms of computation time the Segregation model (0.09–1.7 s) far outperforms the PBM (1.8–6.2 s). This is because the sets of differential equations required by the PBM are avoided by the Segregation Approach.Based on this result, the Segregation model is described in the context of developing a model which can be used for the real-time model-based control and grade transition trajectory optimisation of olefin polymerisation processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 36, 10 January 2012, Pages 68–78
نویسندگان
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