Abstract
Nonideal mixing behavior of solid particles in a fluidized bed for catalytic polymerization is examined for its effects on the particle size distribution (PSD). It is shown that the assumption of perfect mixing for the solid is quite adequate for the PSD under typical operating conditions. However, the assumption leads to erroneous PSD when the size of the particles removed from the bed is relatively small. Analytic expressions of the PSD are obtained that take into account both diffusion and catalyst deactivation. The diffusion effects are shown to be fairly significant. A simple relationship is derived for an estimate of the average particle size.
| Original language | English |
|---|---|
| Pages (from-to) | 421-431 |
| Number of pages | 11 |
| Journal | Chemical Engineering Science |
| Volume | 52 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1997 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering
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Particle size distribution in fluidized beds for catalytic polymerization. / Khang, Dahl-Young; Lee, Hong H.
In: Chemical Engineering Science, Vol. 52, No. 3, 01.01.1997, p. 421-431.Research output: Contribution to journal › Article
TY - JOUR
T1 - Particle size distribution in fluidized beds for catalytic polymerization
AU - Khang, Dahl-Young
AU - Lee, Hong H.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - Nonideal mixing behavior of solid particles in a fluidized bed for catalytic polymerization is examined for its effects on the particle size distribution (PSD). It is shown that the assumption of perfect mixing for the solid is quite adequate for the PSD under typical operating conditions. However, the assumption leads to erroneous PSD when the size of the particles removed from the bed is relatively small. Analytic expressions of the PSD are obtained that take into account both diffusion and catalyst deactivation. The diffusion effects are shown to be fairly significant. A simple relationship is derived for an estimate of the average particle size.
AB - Nonideal mixing behavior of solid particles in a fluidized bed for catalytic polymerization is examined for its effects on the particle size distribution (PSD). It is shown that the assumption of perfect mixing for the solid is quite adequate for the PSD under typical operating conditions. However, the assumption leads to erroneous PSD when the size of the particles removed from the bed is relatively small. Analytic expressions of the PSD are obtained that take into account both diffusion and catalyst deactivation. The diffusion effects are shown to be fairly significant. A simple relationship is derived for an estimate of the average particle size.
UR - http://www.scopus.com/inward/record.url?scp=0031060846&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031060846&partnerID=8YFLogxK
U2 - 10.1016/S0009-2509(97)86701-2
DO - 10.1016/S0009-2509(97)86701-2
M3 - Article
AN - SCOPUS:0031060846
VL - 52
SP - 421
EP - 431
JO - Chemical Engineering Science
JF - Chemical Engineering Science
SN - 0009-2509
IS - 3
ER -