Mesoscale Modelling of Fluidised Bed Binder Granulation
- Event time: 1:00pm
- Event date: 24th September 2001
- Speaker: Frantisek Stepanek (Statistics and Modelling Unit Unilever Research Port Sunlight UK)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Fluidised bed granulation is a unit operation commonly employed for particle size enlargement during the manufacture of various chemical products such as fertilizers, pigments, detergents, pharmaceuticals, ''instant'' food, and others. The internal structure of granules -- characterised e.g. by porosity and pore-size distribution -- is a key parameter which determines product properties such as mechanical strength or the rate of disolution. I will present methodology and some results of our recent efforts to predict the structure of granules from ''first principles'', i.e. from known properties of the primary constituents (powder particles and liquid binder droplets) and process parameters. I will also point out some physical and physico-chemical problems underlying granulation.
This is a weekly series of informal talks given primarily by members of the soft condensed matter and statistical mechanics groups, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..