Comparative study of the reactivities of the components in the selective hydrogenation of the mixture C-2-C-3.

The selective hydrogenation of the pyrolisis fraction C-2 in order to eliminate the existing acetone is a well known process. Nevertheless, it could be more interesting, from an industrial point of view, to make the hydrogenation not only of the C-2 but also of the C-3. In the present work, it is studied comparatively the level of hydrogenation of the most insaturated hydrocarbons of the fractions C-2 and C-3 in the mixture assembly C-2-C-3 or C-3-, and interesting results are found. It is also analyzed the acetylene hydrogenation in the fraction C-2 and in the amplified fraction C-2-G(3) and it is found that in some cases, the latter may offer some advantages. The study takes place considering the process versions known as tail end and front end, showing only a reduced number of results graphics, as an example.