Effective Diffusivity and Kinetics of Urease Inactivation and Color Change During Processing of Soybeans with Superheated-Steam Fluidized Bed

2004 ◽  
Vol 22 (9) ◽  
pp. 2095-2118 ◽  
Author(s):  
Somkiat Prachayawarakorn ◽  
Paveena Prachayawasin ◽  
Somchart Soponronnarit
Keyword(s):  
Fluidized Bed ◽  
Superheated Steam ◽  
Color Change ◽  
Effective Diffusivity ◽  
Kinetics Of ◽  
Urease Inactivation

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,

Drying Kinetics of Paddy in a Reduced Pressure Superheated Steam Fluidized Bed

2013 ◽  
Vol 31 (4) ◽  
pp. 452-461 ◽  
Author(s):  
B. Kozanoglu ◽  
D. Mazariegos ◽  
J. A. Guerrero-Beltrán ◽  
J. Welti-Chanes
Keyword(s):  
Fluidized Bed ◽  
Superheated Steam ◽  
Drying Kinetics ◽  
Reduced Pressure ◽  
Kinetics Of

Modeling Drying Kinetics of Mustard in Fluidized Bed

2008 ◽  
Vol 4 (3) ◽  
Author(s):  
Chandrasekar Srinivasakannan
Keyword(s):  
Experimental Data ◽  
Fluidized Bed ◽  
Flow Rate ◽  
Total Duration ◽  
Effective Diffusivity ◽  
Model Parameters ◽  
Drying Rate ◽  
Solids Holdup ◽  
Maximum Root ◽  
Kinetics Of

Mustard (Brassica juncea), one of the popular oil seeds, is investigated for drying in Batch fluidized beds. Experiments were conducted to assess the kinetics of drying for the variation in the inlet air temperature, the inlet air flow rate and the solids holdup in the fluidized bed. The drying rate was found to increase significantly with increase in temperature and with flow rate of the heating medium, while decrease with increase in solids holdup. The duration of constant rate period was found to be insignificant, considering the total duration of drying. The drying rate was compared with various exponential time decay models and the model parameters were evaluated. The page model was found to match the experimental data very closely with the maximum root mean square error (RMSE) of less the 2.0%. The experimental data were also modeled using Fick's diffusion equation and the effective diffusivity coefficients was found to be within 1.69*10-11 to 3.26*10-11m2/s for the range of experimental data covered in the present study with RMSE less than 4%.

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.

Numerical Simulation on Superheated Steam Fluidized Bed Drying: I. Model Construction

2011 ◽  
Vol 29 (11) ◽  
pp. 1325-1331 ◽  
Author(s):  
Deyong Yang ◽  
Zhenhua Wang ◽  
Xiaoli Huang ◽  
Zhifeng Xiao ◽  
Xiangdong Liu
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Superheated Steam ◽  
Model Construction ◽  
Fluidized Bed Drying

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
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