Performance Analysis of a Fluidized Bed Reactor. III. Modification and Extension of Conventional Two-Phase Models

1975 ◽  
Vol 14 (2) ◽  
pp. 86-91 ◽  
Author(s):  
Claude Chavarie ◽  
John R. Grace
Keyword(s):  
Performance Analysis ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Two Phase ◽  
Phase Models

scholarly journals Modelling and Simulation of a Fluidized Bed Reactor for Minimum Ammonium Nitrate and Reduction of NOx Emissions

2018 ◽  
Vol 20 (1) ◽  
pp. 8 ◽  
Author(s):  
Aysar Talib Jarullah
Keyword(s):  
Ammonium Nitrate ◽  
Fluidized Bed ◽  
Chemical Engineering ◽  
Optimization Technique ◽  
Fluidized Bed Reactor ◽  
Operating Conditions ◽  
Optimal Operating ◽  
Two Phase ◽  
Zone Length ◽  
Engineering Research

<p>Due to the environmental legislations related to the nitrates and their emissions, thermal decomposition of ammonium nitrate (AN) in a fluidized reactor (FR) is regarded one of the most reasonable chemical-free disposal process for an aqueous waste nitrate stream. Therefore, the present study is aimed to improve a mathematical model based on experiments (from the literature) for enhancing the design of such reactor in an environmentally friendly manner. Where, the optimal kinetic parameters of the relevant reactions are firstly obtained employing the optimization technique keeping in mind the goal to construct the model with high exactness. Such design factors are then utilized for the purpose of getting the optimal operating conditions of fluidized bed reactor (FBR) achieving the main target of this process with ammonium nitrate-free content (Nil) at the end of the reactor in addition to reducing the NO<em><sub>x</sub></em><em> </em>emissions. The model is based on the two-phase theory of a FBR with predicting the concentration behavior along the reaction zone length for all components in the emulsion and bubble phases in addition to the temperature profile of the gas phase. New results related to output conversion of ammonium nitrate as well as NO content at the optimal operating conditions has been obtained in comparison with those reported in the literature.</p><p>Chemical Engineering Research Bulletin 20(2018) 8-18</p>

Two-phase modeling of a gas phase polyethylene fluidized bed reactor

2006 ◽  
Vol 61 (12) ◽  
pp. 3997-4006 ◽  
Author(s):  
Ali Kiashemshaki ◽  
Navid Mostoufi ◽  
Rahmat Sotudeh-Gharebagh
Keyword(s):  
Gas Phase ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Two Phase
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