MEASUREMENT OF RESIDENCE TIME DISTRIBUTION BY LASER-ABSORPTION SPECTROSCOPY

Citation
P. Nadeau et al., MEASUREMENT OF RESIDENCE TIME DISTRIBUTION BY LASER-ABSORPTION SPECTROSCOPY, Chemical Engineering Science, 51(11), 1996, pp. 2607-2612
Citations number
7
Categorie Soggetti
Engineering, Chemical
ISSN journal
00092509
Volume
51
Issue
11
Year of publication
1996
Pages
2607 - 2612
Database
ISI
SICI code
0009-2509(1996)51:11<2607:MORTDB>2.0.ZU;2-1
Abstract
The residence time distribution (RTD) was obtained in a tubular reacto r with mean residence times of the order of milliseconds by using an i nfrared laser absorption technique. The reactor was operated at room c onditions with a nitrogen or helium gas flow, the tracer used was meth ane. The fast response of the measuring device allowed a qualitative a nalysis of the micromixing in the flow. An axial dispersion model was used to describe the RTD of the reactor. It was found that the values for the dispersion coefficient were strongly influenced by the radial velocity profile in the reactor.