New model for performance prediction in fixed-bed reactors based on the approach of the unused bed zone.
In the present study a practical model useful for designers dealing with pilot scale reactors for pollutant control has been developed. Investigations were undertaken for a single-component lead study on New Zealand clinoptilolite at the temperature of 25+/-1 degrees C. Fifteen runs under different operating conditions such as particle characteristics (expressed as d*(p)/D), column geometry (as l*/D) and flow speed (as R*e) have been performed. The results were interpreted by a response surface method (RSM) from which an equation giving the unused bed zone (UBZ) was obtained. From those dimensionless parameters, a sequence of contour plots was drawn, making it easy for a designer to choose optimum design parameters while controlling the operation performance. The flow rate (R*e) range was established over the laminar flow conditions from 1 to 8, (l/D*) was extended from 7 to 20 and (d(p)/D*) varied from 3% to 10%. Optimization of performance of the reactor as UBZ could vary from 10% to 40% of the material operating capacity.
Fanfan
P N
PN
Department of Analytical Chemistry, Gembloux Agricultural University (FUSAGx), 2 Passage des Déportés, B5030 Gembloux, Belgium. fanfan.p@fsagx.ac.be
Mabon
N
N
Carletti
I
I
Claustriaux
J J
JJ
Thonart
P
P
Lognay
G
G
Copin
A
A
Barthélemy
J P
JP
D019149:Bioreactors; D004867:Equipment Design; D005544:Forecasting; D008962:Models, Theoretical; D013696:Temperature; D014872:Water Movements; D014873:Water Pollutants / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
D014873:Water Pollutants