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Blandning i tankar

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28/11/2013<br />

Massväxlare<br />

• Masstransport per<br />

packningsvolym<br />

K<br />

L<br />

A<br />

K<br />

La<br />

<br />

V<br />

col<br />

• Kolonnhöjd<br />

h<br />

col<br />

K<br />

L<br />

A<br />

<br />

K aA<br />

L<br />

col<br />

Masstransport<br />

per m 3 packning<br />

K L<br />

a<br />

Transportprocesser, KETF01<br />

F15 – Masstransport 4<br />

Exempel 8.3<br />

• En gas renas med<br />

absorption i vatten.<br />

• Vad är tornets höjd<br />

om K L a = 2.5?<br />

h<br />

h<br />

col<br />

col<br />

K<br />

L<br />

A<br />

<br />

K aA<br />

L<br />

46.4<br />

<br />

2.5<br />

0.8<br />

• Kolonnhöjd=9.2 m<br />

Transportprocesser, KETF01<br />

col<br />

2 <br />

9.24<br />

L=27.2 mol/s<br />

D=1.6 m<br />

x in<br />

0 y 0.005<br />

ut<br />

y 1.5x<br />

*<br />

G=13.6 mol/s<br />

x ut<br />

0.0075<br />

y 0.02<br />

in<br />

F15 – Masstransport 4<br />

14

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