کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
157953 | 456989 | 2008 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Measuring the particle size of a known distribution using the focused beam reflectance measurement technique Measuring the particle size of a known distribution using the focused beam reflectance measurement technique](/preview/png/157953.png)
The accuracy of the focused beam reflectance measurement (FBRM) probe, which measures a chord length distribution, from Mettler–Toledo Lasentec®® has been explored. A particle video microscope (PVM) probe, which provides in situ digital images, was used as a direct visual method to test the reliability of the FBRM results. These probes can provide in situ particle characterization at high pressures. The FBRM has been used to study emulsions and ice and clathrate hydrate formation. The ability of the FBRM to accurately characterize unimodal and bimodal distributions of particles and droplets and to measure agglomeration events was investigated. It was found that while the FBRM can successfully identify system changes, certain inaccuracies exist in the chord length distributions. Particularly, the FBRM was found to oversize unimodal distributions of glass beads, but undersize droplets in an emulsion and was unable to measure full agglomerate sizes. The onset of ice and hydrate nucleation and growth were successfully detected by the FBRM, but quantitative analysis of the particle and agglomerate sizes required simultaneous PVM measurements to be performed.
Journal: Chemical Engineering Science - Volume 63, Issue 22, November 2008, Pages 5410–5419