Crystal aggregation in a flow tube: image‐based observation

C Borchert, K Sundmacher - Chemical Engineering & …, 2011 - Wiley Online Library
The aggregation of crystals within a flow tube was observed based on data extracted from
images of the bypassing population. The experiments were conducted under different …

Measuring multidimensional particle size distributions during crystallization

S Schorsch, T Vetter, M Mazzotti - Chemical Engineering Science, 2012 - Elsevier
A protocol for measuring multidimensional particle size distributions during crystallization is
presented. The instrument consists of a flow through cell where it is possible to take images …

Agglomeration of needle-like crystals in suspension: I. Measurements

DR Ochsenbein, T Vetter, S Schorsch… - Crystal Growth & …, 2015 - ACS Publications
A technique for the detection and measurement of the agglomeration of needle-like particles
is presented. A novel image analysis routine, based on a supervised machine learning …

High accuracy online measurement of multidimensional particle size distributions during crystallization

S Schorsch, DR Ochsenbein, T Vetter, M Morari… - Chemical Engineering …, 2014 - Elsevier
A novel stereoscopic image acquisition setup and a procedure for measuring
multidimensional particle size distributions (nD PSDs) during crystallization based on image …

Quantification of overlapping polygonal-shaped particles based on a new segmentation method of in situ images during crystallization

OS Ahmad, J Debayle, N Gherras… - Journal of …, 2012 - spiedigitallibrary.org
Quantification of the overlapping particles in crystallization processes is very important for
the quality control of chemical products or drugs. We present a method of segmentation of …

Measurement of 3D particle size distributions by stereoscopic imaging

M Kempkes, T Vetter, M Mazzotti - Chemical Engineering Science, 2010 - Elsevier
In this work a method is presented to acquire 3D size information on particles in suspension.
An experimental setup capable of acquiring two images from the same particle at different …

Measurement of size and shape distributions of particles through image analysis

J Eggers, M Kempkes, M Mazzotti - Chemical Engineering Science, 2008 - Elsevier
The size and shape of particles can be described using a 2D particle size distribution (PSD)
where two characteristic lengths define each particle in the population. The determination of …

Discrimination between single crystals and agglomerates during the crystallization process

S Heisel, M Rolfes… - Chemical Engineering & …, 2018 - Wiley Online Library
A setup for online measurement of crystallization processes was developed, where particle
images were taken and in combination with artificial neural networks (ANNs) were used to …

In-line study of crystal fragmentation in a stirred reactor

GM Crawley, F Gruy, M Cournil - Chemical engineering science, 1996 - Elsevier
This paper presents an example of the use of a turbidity multi-wavelength sensor for an in-
line study of fragmentation of crystals in an agitated vessel. Thanks to this in situ sensor, it is …

An algorithm for analyzing noisy, in situ images of high-aspect-ratio crystals to monitor particle size distribution

PA Larsen, JB Rawlings, NJ Ferrier - Chemical Engineering Science, 2006 - Elsevier
An image analysis algorithm for extracting particle size distribution information from in situ
images of suspended, high-aspect-ratio crystals is described. The accuracy of the algorithm …