Application of Raman Spectroscopy to Characterization of Residence Time Distribution and Online Monitoring of a Pilot-Scale Tubular Reactor for Acrylic Acid Solution Polymerization

2016 ◽  
Vol 10 (4) ◽  
pp. 406-414 ◽  
Author(s):  
Marie-Claire Chevrel ◽  
Sandrine Hoppe ◽  
Dimitrios Meimaroglou ◽  
David Chapron ◽  
Patrice Bourson ◽  
...  
AIChE Journal ◽  
1997 ◽  
Vol 43 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Robert A. Scott ◽  
Nikolaos A. Peppas

2016 ◽  
Vol 10 (4) ◽  
pp. 354-363
Author(s):  
Marie-Claire Chevrel ◽  
Sandrine Hoppe ◽  
Dimitrios Meimaroglou ◽  
Laurent Falk ◽  
Alain Durand

2002 ◽  
Vol 29 (4) ◽  
pp. 612-621 ◽  
Author(s):  
Éric Mainville ◽  
Vincent Gauthier ◽  
Daniel Lavallée ◽  
Claude Marche

Drinking water storage tanks are used to respond to fluctuating demand and to maintain water pressure in the distribution network. In drinking water plants, they are also used for disinfection. In both cases, a good knowledge of the residence time distribution (RTD) is important. An easy way to obtain the water RTD in a drinking water tank is to perform a tracer study. Nevertheless, "classical" tracing techniques can only be used under steady flow conditions. To cope with that, this study proposes a new approach to extend the application of tracer tests to unsteady flow conditions. This new approach is based on signal processing. It has been tested numerically and on a pilot scale model. The numerical tests have shown that this technique can be used for determining the RTD twice more rapidly than the "classical" methods. Thus, this technique allows to approach the knowledge of the RTD under unsteady flow conditions. Pilot scale tests have shown the need for other improvements to bring the quality of the results obtained to the same level of goodness as those obtained from a theorical example.Key words: drinking water, storage tanks, water quality, tracer study, residence time distribution, signal processing, unsteady flow.


2016 ◽  
Vol 368 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Daniel Moreira ◽  
Martina Pinto ◽  
Rodrigo Klein ◽  
Nathalie Souza ◽  
José Carlos Pinto

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