Preliminary Program subject to change
TWD14 Agglomeration and Breakage in Fluid-Particle Systems - I
OverviewCoating, drying, flocculation, granulation, and milling are some important unit operations in which fluid-particle interactions play a major role. In fluid-particle systems, the attributes of particles can change due to various mechanisms including agglomeration, breakage, and growth-shrinkage. Agglomeration and breakage can be either desirable or unwanted depending on the engineering application at hand. For example, in fluid bed granulation, controlled agglomeration of fine particles is desirable, whereas attrition of granules formed is unwanted and should be minimized. In most applications, agglomeration and breakage mechanisms operate simultaneously and are greatly affected by the fluid-particle interactions. It is thus of fundamental importance to study these mechanisms in connection with the fluid-particle interactions. In this session, we will consider original research results from both academia and industry regarding the agglomeration and breakage phenomena in fluid-particle systems. The work can be computational and/or experimental in nature. Although the scope of the session is broad, research papers that combine population balance modeling with multi-phase flow models via computational fluid dynamics and/or discrete element simulations are especially welcome. In addition, experimental work that characterizes the fluid-particle interactions, that identifies the model parameters, or that yields valuable data for process models are equally welcome. Research on various tests, which allow the measurement of particle and agglomerate strength via fluid-particle interactions, will also be considered.
Primary SponsorFluidization and Multiphase Flow/Separations (TWd)

Chair

Ecevit Bilgili
Research Scientist
Merck & Co
WP 78-110, P.O. Box 4
West Point, PA 19486
Phone Number: (215) 652-9824
Fax Number: (215) 652-2821
Email: ecevit_bilgili@merck.com

CoChair

Ramin Farnood
Assistant Professor
Dept of Chemical Engng and Applied Chemistry
University of Toronto
200 College Street
Toronto, ON M5S 3E5
Canada
Phone Number: (416) 946-7525
Fax Number: (416) 978-8605
Email: farnood@chem-eng.utoronto.ca
A Population Balance Model for Flocculation of Colloidal Suspensions Incorporating the Influence of Surface Forces
Ponisseril Somasundaran1, Venkataramana Runkana2 and P. C. Kapur2, (1)Columbia University, Room 911, Mudd Bldg., 500W 120th Street, New York, NY 10027, (2)Tata Research Development and Design Center, 54-B Hadapsar Industrial Estate, Pune, 411013, India
An Approach to Model High Shear Wet Granulation by Using a Multi-Dimensional Population Balance Equation
Anders Darelius1, Anders Rasmuson1, Ingela Niklasson Björn2, Staffan Folestad2 and Henric Brage3, (1)Chemical Engineering Design, Chalmers University of Technology, Kemivagen 10, Gothenburg, 412 59, Sweden, (2)PAT Center of Excellence, AstraZeneca R&D Mölndal, Pepparedsleden, Mölndal, 431 83, Sweden, (3)AstraZeneca R&D Mölndal, Pepparedsleden, Mölndal, 431 83, Sweden
Dispersion dynamics of fractal and non-fractal aggregates in shear flow
Shusaku Harada1, Hiroo Nogami2, Reiko Tanaka1 and Manabu Sawada2, (1)Hokkaido University, Division of Field Engineering for Environment, N13-W8, Sapporo, Japan, (2)Murata Manufacturing Campany, Ltd, 10-1, Higashi Kotari 1-chome, Nagaokakyo, Kyoto, Japan
Characterization of the Structure of Fractal Aggregates
Lech Gmachowski, 1.Warsaw University of Technology, Institute of Chemistry; 2.Institute of Physical Chemistry, Polish Academy of Sciences, Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
Extension to Smoluchowski's Population Balance Equation to Include Liquid Binder
Patrick R. Rynhart1, Robert MacLachlan1, Jim R. Jones2 and Robert McKibbin3, (1)Institute of Fundamental Sciences, Massey University, Tennant Drive, Palmerston North, New Zealand, (2)Institute of Technology and Engineering, Massey University, Tennant Drive, Palmerston North, New Zealand, (3)Institute of Information and Mathematical Sciences, Massey University, State Highway 17, Albany, Auckland, New Zealand
Solution of Population Balance Equations for Wet Granulation and Combination with the FLUENT Software
Pavol Rajniak1, Rey T. Chern1 and Frantisek Stepanek2, (1)Research Laboratories, Merck & Co., Inc., WP78-110, PO Box 4, West Point, PA 19486-0004, (2)Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom

Topical W: Fifth World Congress on Particle Technology