Crystallization kinetics for carbon dioxide gas hydrate in fixed bed and stirred tank reactor

2016 ◽  
Vol 33 (6) ◽  
pp. 1922-1930 ◽  
Author(s):  
Asheesh Kumar ◽  
Dishant Khatri ◽  
Ju Dong Lee ◽  
Rajnish Kumar
Keyword(s):  
Carbon Dioxide ◽  
Crystallization Kinetics ◽  
Gas Hydrate ◽  
Fixed Bed ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Carbon Dioxide Gas

The Effect of Using Baffles on the Rate of Mass Transfer of a Cylindrical Stirred Tank Reactor

2020 ◽  
Vol 1008 ◽  
pp. 168-176
Author(s):  
Fathy Shokry ◽  
Dina Ahmed El-Gayar ◽  
Marwa Abd El-Fattah ◽  
H.A. Farag ◽  
Gomaa H. Sedahmed
Keyword(s):  
Mass Transfer ◽  
Mass Transport ◽  
Radial Flow ◽  
Mass Transfer Rate ◽  
Fixed Bed ◽  
Axial Flow ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Chemical Process Industry ◽  
Tank Reactor

Owing to the high mixing capacity, the stirred tank reactor is the key class of reactors in the chemical process industry and pharmaceutical industry. The mass transport nature of a batch stirred tank reactor with a fixed copper wall with a cylinder form was studied using copper dissolution in acidified dichromate which is controlled by diffusion. Variables analyzed included the speed of rotation of the impeller, the shape of the impeller and the physical specifications of the solution and the existence of baffles. The data were correlated for the conditions 3667.323 < Re < 34993.18 and 960 < Sc < 1364, for radial flow by the equation: Sh =0.3453 *Sc1/3*Re0.66 but for axial flow by the equation: Sh =0.5866 *Sc1/3*Re0.59. Through speed of rotation of the impeller increases,it allows the rate of mass transfer from the fixed bed to the solution to rise. The radial-flow turbine is more effective than the axial-flow turbine in increasing the rate of mass transfer. The usage of baffles plays a significant role in rising the rate of mass transfer. Using baffles; the correlation will be Sh =0.0769 *Sc1/3*Re0.84 for radial flow and Sh =0.1157 *Sc1/3*Re0.78 for axial flow. The purpose of this research is to estimate the rate of mass transport that can be required in corrosive reactions, and also to maximize the mass transfer rate that can be achieved in other processes, such as electroplating in presence of baffles.

Kinetics of mesophase formation in a stirred tank reactor and properties of the products, IV: Carbon dioxide atmosphere

Carbon ◽  
1992 ◽  
Vol 30 (6) ◽  
pp. 931-938 ◽  
Author(s):  
Klaus J. Hüttinger ◽  
Martin Bernhauer ◽  
Klaus Christ ◽  
Axel Gschwindt
Keyword(s):  
Carbon Dioxide ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Mesophase Formation ◽  
Carbon Dioxide Atmosphere ◽  
Kinetics Of

Impact of the fluid flow conditions on the formation rate of carbon dioxide hydrates in a semi-batch stirred tank reactor

AIChE Journal ◽  
2015 ◽  
Vol 61 (12) ◽  
pp. 4387-4401 ◽  
Author(s):  
S. Douïeb ◽  
L. Fradette ◽  
F. Bertrand ◽  
B. Haut
Keyword(s):  
Carbon Dioxide ◽  
Fluid Flow ◽  
Formation Rate ◽  
Stirred Tank ◽  
Flow Conditions ◽  
Stirred Tank Reactor ◽  
Tank Reactor

Gas Hydrate Growth Model in a Semibatch Stirred Tank Reactor

2007 ◽  
Vol 46 (18) ◽  
pp. 5907-5912 ◽  
Author(s):  
Shahrzad Hashemi ◽  
Arturo Macchi ◽  
Phillip Servio
Keyword(s):  
Growth Model ◽  
Gas Hydrate ◽  
Stirred Tank ◽  
Stirred Tank Reactor ◽  
Tank Reactor

Liquid-Solid Mass Transfer Behavior of a Stirred-Tank Reactor with a Fixed Bed at Its Bottom

2014 ◽  
Vol 37 (9) ◽  
pp. 1525-1531 ◽  
Author(s):  
Mohamed A. El-Naggar ◽  
Mohamed H. Abdel-Aziz ◽  
Ahmed A. Zatout ◽  
Gomaa H. Sedahmed
Keyword(s):  
Mass Transfer ◽  
Fixed Bed ◽  
Stirred Tank ◽  
Solid Mass ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Transfer Behavior
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