Stability of a non-catalytic reaction in a packed bed

✍ Scribed by J.B. Agnew; G. Narsimhan

• Publisher: Elsevier Science
• Year: 1970
• Tongue: English
• Weight: 885 KB
• Volume: 25
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(70)85098-9

✦ Synopsis

The cell model developed by Amundson and co-worker has been applied to compute the bulk and particle temperatures and partial pressure along the length of a packed bed reactor where an exothermic non-catalytic solid-gas reaction. viz. 4FeS,+ 110, + 2Fe,0,+8S02 proceeds under adiabatic conditions. The kinetic data previously obtained have been used in the numerical computation procedure adopted in programming on a CDC 3200 computer.

By linearizing the transient equations around the steadystate, the stability problem has been investigated by examination of the Lienard-Chipart criterion.

The condition of sectional stability has been obtained as:

which is a more conservative condition that the usual van Heerden's slope conditions. at the specified cell. An approximate but safe stability condition applicable over the entire bed at any stage of conversion has been obtained as

PO (1 +cLuj M,C,E

.