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The global project around this thesis was to develop a colorimetric method in order to visualize local mass transfers into straight capillaries. In order to have the possibility to calculate the E-Factor, two point have particularly kept the attention during this work: the first one was the measurement of the diffusion coefficient, and the second one was the measurement of the reaction constant. For both measurement, an image processing method was used. Finally, the obtained results showed that some optimisation were still possible but they were already sufficient to have a good idea of the E-Factor

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Menoud, Gilles
The author started his journey into the chemistry with an apprenticeship as Chem. Lab. Tech. oriented in synthesis. He made then his military service as laboratory officer for the chemical defense and finally began a Bachelor in Chemical Engineering at the Applied University of Fribourg.

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