The Effects of Weight Hour Space Velocity on the Products Distribution of Aromatization Reaction of Lanlian FCC Gasoline

2010 ◽  
Vol 28 (10) ◽  
pp. 1025-1035
Author(s):  
H. Lu ◽  
H. You
Keyword(s):  
Space Velocity ◽  
Fcc Gasoline ◽  
Aromatization Reaction

scholarly journals Kinetic study of propane aromatization over Zn/HZSM-5 zeolite under conditions of catalyst deactivation using genetic algorithm

2018 ◽  
Vol 83 (4) ◽  
pp. 473-488 ◽  
Author(s):  
Abbas Roshanaei ◽  
Mehdi Alavi
Keyword(s):  
Genetic Algorithm ◽  
Kinetic Model ◽  
Kinetic Parameters ◽  
Catalyst Deactivation ◽  
Flow Reactor ◽  
Plug Flow ◽  
Kinetic Studies ◽  
Space Velocity ◽  
Propane Aromatization ◽  
Aromatization Reaction

The kinetic studies of propane aromatization reaction over Zn/ /HZSM-5 catalyst at temperature of 500?560?C and space velocity of 500?2500 cm3 gcat -1 h-1, in a plug flow reactor, under catalyst deactivating conditions were performed. A lumped kinetic model consisting of six lumped components and six reaction steps was proposed to describe the aromatization of propane. The kinetic model involves 18 kinetic parameters and one catalyst deactivation constant. The reaction steps orders were obtained by the power law model. Frequency factors and the apparent activation energies of the reaction steps were calculated based on the Arrhenius equation. An exponential function depending on the time-on-stream was applied for the catalyst deactivation model and the kinetic parameters were calculated via a genetic algorithm. The kinetic results indicated that the lumped kinetic model can well estimate the product yields of propane aromatization.

Nine lumped kinetic models of FCC gasoline under the aromatization reaction conditions

2006 ◽  
Vol 7 (8) ◽  
pp. 554-558 ◽  
Author(s):  
Hongjun You ◽  
Chunming Xu ◽  
Jinsen Gao ◽  
Zhichang Liu ◽  
Pinxiang Yan
Keyword(s):  
Kinetic Models ◽  
Reaction Conditions ◽  
Fcc Gasoline ◽  
Aromatization Reaction

Dimethyldisulphide Hydrodesulphurization on NiCoMo / Al2O3 Catalyst

2017 ◽  
Vol 68 (7) ◽  
pp. 1496-1500
Author(s):  
Rami Doukeh ◽  
Mihaela Bombos ◽  
Ancuta Trifoi ◽  
Minodora Pasare ◽  
Ionut Banu ◽  
...  
Keyword(s):  
Good Accuracy ◽  
Fixed Bed ◽  
Continuous System ◽  
Space Velocity ◽  
Molar Ratio ◽  
Catalytic Reactor ◽  
Liquid Hourly Space Velocity ◽  
Hydrodesulfurization Process ◽  
Al2o3 Catalyst ◽  
Simplified Kinetic Model

Hydrodesulphurization of dimethyldisulphide was performed on Ni-Co-Mo /�-Al2O3 catalyst. The catalyst was characterized by determining the adsorption isotherms, the pore size distribution and the acid strength. Experiments were carried out on a laboratory echipament in continuous system using a fixed bed catalytic reactor at 50-100�C, pressure from 10 barr to 50 barr, the liquid hourly space velocity from 1h-1 to 4h-1 and the molar ratio H2 / dimethyldisulphide 60/1. A simplified kinetic model based on the Langmuir�Hinshelwood theory, for the dimethyldisulphide hydrodesulfurization process of dimethyldisulphide has been proposed. The results show the good accuracy of the model.

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