Treatment of aromatic essences for the petrochemical industry. : Separation processes

Separation processes
Treatment of aromatic essences for the petrochemical industry.

Authors : Emmanuelle GuILLON, Philibert LEFLAIVE

Review date: February 1, 2016 | Lire en français

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2. Separation processes

Various separation techniques are used within the aromatic complex. These techniques are used :

or to isolate certain cuts; for example the separation of the C₈-aromatic cut from heavier compounds by distillation or the separation between aromatic compounds and other compounds on the $C_{7^{-}}$ cut by extractive distillation;
or to produce high-purity aromatic compounds, such as toluene by distillation or paraxylene by molecular sieve adsorption.

The main techniques are distillation, crystallization, adsorption, extractive...

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Ongoing reading
Separation processes

(1) - CHAUVEL (A.), LEFEBVRE (G.), CASTEX (L.) - Procédés de pétrochimie. - Éditions Technip, Tome 1, Paris, 456 p. (1985).
(2) - ALARIO (F.), GUISNET (M.) - Paraxylene manufacturing : catalytic reactions and processes. - Zeolites for cleaner technologies,...

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