Online monitoring of polymer particle growth.
Many attempts have been made to elucidate the growth behavior of
polymer particles in catalytic olefin polymerizations on support
catalysts. Using Lasentec focused beam reflectance measurement (FBRM)
and particle vision and measurement (PVM) probes, Xalter and Mulhaupt at
Albert-Ludwigs University Freiburg in Germany are able to perform the
first real-time monitoring of polymer particle growth during stirred
ethylene slurry polymerization in a standard lab-scale reactor. FBRM
provides statistically significant data on particle numbers and size
distributions. Combined with ethylene mass-flow measurements, FBRM
online monitoring allows for the distinction of different types of
particle growth processes, depending on catalyst type and productivity.
In addition, the PVM video microscopy probe enables the online
visualization and morphological characterization of polymer particles,
thereby complementing the data generated by FBRM.
R. Mulhaupt et al., Macromol. React. Eng. DOI: