Kinetics of particle growth in the fluidized bed calcination process

AIChE Journal ◽  
1964 ◽  
Vol 10 (5) ◽  
pp. 717-722 ◽  
Author(s):  
Earl S. Grimmett
Keyword(s):  
Fluidized Bed ◽  
Particle Growth ◽  
Calcination Process ◽  
Kinetics Of

Kinetics of the calcination process of shell molds in fluidized bed

1986 ◽  
Vol 22 (11) ◽  
pp. 615-618
Author(s):  
E. N. Prozorov ◽  
N. N. Varygin ◽  
L. K. Gordienko ◽  
M. F. Maslovskii
Keyword(s):  
Fluidized Bed ◽  
Calcination Process ◽  
Kinetics Of

The Kinetics of Glucose Decomposition with Sulfate Reduction in the Anaerobic Fluidized Bed Reactor

1993 ◽  
Vol 28 (2) ◽  
pp. 135-144 ◽  
Author(s):  
S. Matsui ◽  
R. Ikemoto Yamamoto ◽  
Y. Tsuchiya ◽  
B. Inanc
Keyword(s):  
Sulfate Reduction ◽  
Fluidized Bed ◽  
Kinetic Equations ◽  
Fluidized Bed Reactor ◽  
Order Reaction ◽  
First Order Reaction ◽  
First Order ◽  
Glucose Decomposition ◽  
Reaction Equations ◽  
Kinetics Of

Using a fluidized bed reactor, experiments on glucose decomposition with and without sulfate reduction were conducted. Glucose in the reactor was mainly decomposed into lactate and ethanol. Lactate was mainly decomposed into propionate and acetate, while ethanol was decomposed into propionate, acetate, and hydrogen. Sulfate reduction was not involved in the decomposition of glucose, lactate, and ethanol, but was related to propionate and acetate decomposition. The stepwise reactions were modeled using either a Monod expression or first order reaction kinetics in respect to the reactions. The coefficients of the kinetic equations were determined experimentally. The modified Monod and first order reaction equations were effective at predicting concentrations of glucose, lactate, ethanol, propionate, acetate, and sulfate along the beight of the reactor. With sulfate reduction, propionate was decomposed into acetate, while without sulfate reduction, accumulation of propionate was observed in the reactor. Sulfate reduction accelerated propionate conversion into acetate by decreasing the hydrogen concentration.

Effects of Hydrogen and Temperature on the Kinetics of the Fluidized-Bed Nitridation of Silicon

1994 ◽  
Vol 77 (1) ◽  
pp. 186-192 ◽  
Author(s):  
Zoran Jovanovic ◽  
Shoichi Kimura ◽  
Octave Levenspiel
Keyword(s):  
Fluidized Bed ◽  
Kinetics Of

Batch grinding kinetics of scrap tire rubber particles in a fluidized-bed jet mill

2017 ◽  
Vol 305 ◽  
pp. 389-395 ◽  
Author(s):  
Xiaofei Xu ◽  
Xiang Li ◽  
Fengxia Liu ◽  
Wei Wei ◽  
Xiaojuan Wang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Scrap Tire ◽  
Tire Rubber ◽  
Rubber Particles ◽  
Scrap Tire Rubber ◽  
Grinding Kinetics ◽  
Kinetics Of

Photocatalytic degradation intrinsic kinetics of gaseous cyclohexane in a fluidized bed photocatalytic reactor

2012 ◽  
Vol 39 (4) ◽  
pp. 1711-1726 ◽  
Author(s):  
Qijin Geng ◽  
Qingming Wang ◽  
Yunchen Zhang ◽  
Lintong Wang ◽  
Huiqin Wang
Keyword(s):  
Photocatalytic Degradation ◽  
Fluidized Bed ◽  
Photocatalytic Reactor ◽  
Intrinsic Kinetics ◽  
Kinetics Of

Effect of Process Variables on Efficiency and Particle Growth of Spilanthes oleracea Seeds Coating

2010 ◽  
Vol 660-661 ◽  
pp. 419-425 ◽  
Author(s):  
C.M.L. Costa ◽  
L.J.G. Faria ◽  
Cristina dos Santos Rocha Sandra
Keyword(s):  
Fluidized Bed ◽  
Flow Rate ◽  
Particle Growth ◽  
Process Variables ◽  
Relative Growth ◽  
Coating Efficiency ◽  
Fluidized Bed Coating ◽  
Common Technique ◽  
Coating Suspension ◽  
Granule Growth

The coating of vegetable seeds is a very common technique, mainly for the species which have small seeds. One of its functions is to increase the seed size to direct sowing. In the present study the coating of Spilanthes oleracea L. seeds with a polymeric suspension in fluidized bed was analyzed. The effects of process variables on the coating efficiency of top-spray fluidized bed coating were evaluated. The independent variables studied were the flow rate of coating suspension and the air mass flow. The quantification for the entrance variables influence on the coating efficiency and granule growth, as well as the identification of optimal conditions were made by means of an experiment factorial design technique. Polynomial models for the responses: efficiency and relative growth of the particles were deduced. The highest coating efficiency was achieved at a high flow rate of coating suspension.

scholarly journals Influence of drying conditions on the acacia gum particle growth in fluidized bed agglomeration: in-line monitoring of particle size

2018 ◽  
Author(s):  
Juliana G Rosa ◽  
R. F. Nascimento ◽  
K. Andreola ◽  
O. P. Taranto
Keyword(s):  
Particle Size ◽  
Fluidized Bed ◽  
Particle Growth ◽  
Spatial Filter ◽  
Important Food ◽  
Process Yield ◽  
Size Monitoring ◽  
Acacia Gum ◽  
Bed Agglomeration ◽  
Drying Conditions

Acacia gum is an important food emulsifier that presents poor instant properties which can be improved by fluidized bed agglomeration. This study investigated the influence of drying conditions on particle growth kinetics using an in-line particle size monitoring by spatial filter velocimetry. The drying conditions varied according to the binder flow rate and the fluidizing air temperature. The particle growth kinectis showed drying conditions dependence. At mild drying conditions the growth rate and the process yield were higher. The in-line particle size monitoring was useful to observe the influence of the drying conditions on the growth kinetics.Keywords: fluidized bed agglomeration; acacia gum; particle growth kinectis; in-line monitoring.  

scholarly journals Drying behavior, diffusion modeling of cuminum cyminum L. undergoing microwave-assisted fluidized bed drying

2018 ◽  
Author(s):  
Gholamreza Askari ◽  
Atefe Babaki ◽  
Zahra Emamdjomeh
Keyword(s):  
Fluidized Bed ◽  
Effective Diffusivity ◽  
Air Velocity ◽  
Cuminum Cyminum ◽  
Fluidized Bed Dryer ◽  
Microwave Assisted ◽  
Air Temperatures ◽  
Drying Behavior ◽  
Fluidized Bed Drying ◽  
Kinetics Of

In order to conserve cuminum cyminum L. during long storage periods, the drying kinetics of this seed undergoing microwave-assisted fluidized bed dryer at various microwave output power (300, 600 and 900w), air velocity (10, 15 and 20 m/s) and air temperatures (45, 55 and 65ᵒc) were studied. The main aim of this research is developing a mathematical model of mass transfer to investigate the microwave-assisted fluidized bed drying of cuminum cyminum L. seed. In this paper, we tried to discover a good model to evaluate moisture effective diffusivity (Deff). Keywords: cuminum cyminum L, microwave-assisted drying, mathematical modeling,

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