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recherche de tiers corps pour la distillation azéotropique discontinue

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P rocess rocess<br />

rocess<br />

S ystems<br />

ystems<br />

E ngineering<br />

ngineering<br />

P P P<br />

S S S<br />

E E E<br />

SIMO 06<br />

colonne<br />

étape<br />

Pied<br />

Tête<br />

Méthodologie <strong>pour</strong> <strong>la</strong> sélection <strong>de</strong> procédé <strong>de</strong><br />

distil<strong>la</strong>tion <strong>discontinue</strong> – 2<br />

☺ Changer <strong>la</strong> configuration <strong>de</strong> <strong>la</strong> colonne ?<br />

– Colonne <strong>de</strong> rectification (R)<br />

– Colonne <strong>de</strong> distil<strong>la</strong>tion inverse (stripper (S))<br />

F<br />

S 1<br />

B<br />

P 1<br />

ABE<br />

☺<br />

Ex. eau – acétonitrile + méthanol<br />

1 1<br />

B<br />

P 1<br />

ABE<br />

S 2<br />

A-B<br />

P 2<br />

Mé<strong>la</strong>nge A-B<br />

P 2<br />

AE<br />

recycl 2<br />

2<br />

S 3<br />

A<br />

P 3<br />

A<br />

P 1<br />

AB<br />

recycl 3<br />

Règle 9<br />

SSS<br />

P2<br />

AB [sa] (349.9 K)<br />

recycl3<br />

Frontière <strong>de</strong><br />

distil<strong>la</strong>tion<br />

courbe<br />

B - EAU<br />

[sn]<br />

P1<br />

(373.1 K)<br />

A Acétonitrile<br />

[sn] (354.6 K)<br />

Le méthanol est un <strong>tiers</strong> <strong>corps</strong> possible<br />

le diagramme eau – acétonitrile – méthanol obéit à <strong>la</strong> règle 9<br />

séquence associée : SSS ou SSR<br />

S3<br />

F<br />

S1<br />

P3<br />

S2<br />

recycl2<br />

M 120<br />

P #009<br />

S 2.0-2b<br />

Z 11a<br />

AE [un]<br />

(336.8 K)<br />

E – méthanol<br />

[sa]<br />

(337.6 K)<br />

6/12

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