EuroPACT 2017

Course 5

Introduction to Photon Density Wave spectroscopy – for inline particle sizing and process monitoring in highly turbid liquid dispersions.

Photon Density Wave (PDW) spectroscopy is a probe-based, fiber-optical inline method for the characterization of the light absorption and light scattering properties of highly turbid liquid dispersions. Its field of use includes e.g. polymerization reactions, crystallization processes, food processing, emulsification, algae cultivation, and fermentation processes.

Since absorption and scattering are determined independently, PDW spectroscopy is sensitive to changes in chemical composition, particle size, and particle concentration. Particle/droplet diameters are obtained based on the light scattering properties. Here, the size range addressed typically scales from 50 nm to 500 µm, with solid fractions ranging from approx. 1 % to > 60 %.

The course will introduce the theoretical and technical background of PDW spectroscopy. In addition, a wide range of application examples from the various fields of use will exemplarily describe its use for the process monitoring in highly concentrated, complex liquid dispersions.
Speakers:

Dr.  Oliver Reich1,2,
Dr. Roland Hass1,2

1 – University of Potsdam, Physical Chemistry, Centre for Innovation Competence – innoFSPEC, Potsdam, Germany

2 – PDW Analytics GmbH, Potsdam, Germany
Venue:

proWissen Potsdam e. V.
WIS im Bildungsforum
Am Kanal 47
14467 Potsdam

Room 2

http://www.wis-potsdam.de/de/kontakt-anfahrt

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