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Design of Simulated Moving Bed Chromatography - CPAC

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Conc.<br />

Standing Wave <strong>Design</strong>: Binary, Ideal, Linear Systems<br />

Desorbent<br />

Feed<br />

I II III IV<br />

Extract<br />

<strong>Bed</strong> Position<br />

Raffinate<br />

=<br />

= u<br />

= u<br />

= u<br />

F<br />

u<br />

Feed<br />

I<br />

w,slow<br />

II<br />

w,fast<br />

III<br />

w,slow<br />

IV<br />

w,fast<br />

=<br />

Sε<br />

b<br />

<br />

u<br />

III<br />

0<br />

u<br />

II<br />

0<br />

<br />

u w,i<br />

a<br />

= u 0<br />

a<br />

/ ( 1 + Pd i )<br />

= wave velocity <strong>of</strong> component i in zone a<br />

= L c / t s = port movement velocity<br />

F feed = feed flow rate<br />

u 0<br />

a<br />

= interstitial velocity in zone a<br />

e b = inter-particle void fraction<br />

P = (1 – e b ) / e b = bed phase ratio<br />

d i = distribution coefficient <strong>of</strong> i<br />

S = column cross-sectional area

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