Modeling the kinetics of sulfidation over NiMo/Al2O3 catalyst for thiophene hydrodesulfurization

2015 ◽  
Vol 115 (2) ◽  
pp. 635-649 ◽  
Author(s):  
Weikun Lai ◽  
Yingrui Xu ◽  
Yusheng Zhao ◽  
Jinbao Zheng ◽  
Xiaodong Yi ◽  
...  
Keyword(s):  
Thiophene Hydrodesulfurization ◽  
Kinetics Of ◽  
Al2o3 Catalyst

scholarly journals Comparative Study Between two Reaction Kinetic Mechanisms of Thiophene Hydrodesulphurization over CoMo /gama - Al2O3 Supported Catalyst

2019 ◽  
Vol 70 (7) ◽  
pp. 2481-2484
Author(s):  
Rami Doukeh ◽  
Mihaela Bombos ◽  
Ion Bolocan
Keyword(s):  
Active Sites ◽  
Reaction Kinetic ◽  
Supported Catalyst ◽  
Calculated Data ◽  
Space Velocity ◽  
Thiophene Hydrodesulfurization ◽  
Liquid Hourly Space Velocity ◽  
Kinetic Mechanisms ◽  
Kinetics Of ◽  
Al2o3 Catalyst

The kinetic study of the thiophene hydrodesulphurisation process was carried out for CoMo/gama-Al2O3 catalyst, at temperatures between 175 and 275 �C, pressure ranged from 30bar to 60 bar and the liquid hourly space velocity from 1h-1 to 4 h-1. For the reaction mechanism, the Langmuir-Hinshelwood-Hougen-Watson model (LHHW) was used and two kinetic models were proposed: the first model, that considered that H2 is adsorbed on a different type of active center than thiophene and the second model, that considered that the two reactants are adsorbed on the same type of active sites. The values obtained for the average relative error (ARE) and the correlation coefficient between the experimental and the calculated data (R2) indicate that the Langmuir-Hinshelwood model, describing the adsorption on two active sites, best describes the kinetics of the thiophene hydrodesulfurization reaction over CoMo/gama-Al2O3 tested catalyst.

Kinetics of catalytic reduction of nitrogen oxide by carbon monoxide on CuO/Al2O3 catalyst

1983 ◽  
Vol 48 (11) ◽  
pp. 3202-3208 ◽  
Author(s):  
Zdeněk Musil ◽  
Vladimír Pour
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Oxide ◽  
Rate Equation ◽  
Catalytic Reduction ◽  
Zero Order ◽  
Spectroscopic Measurements ◽  
First Order ◽  
Ir Spectroscopic ◽  
Kinetics Of ◽  
Al2o3 Catalyst

The kinetics of the reduction of nitrogen oxide by carbon monoxide on CuO/Al2O3 catalyst (8.36 mass % CuO) were determined at temperatures between 413 and 473 K. The reaction was found to be first order in NO and zero order in CO. The observed kinetics are consistent with a rate equation derived from a mechanism proposed on the basis of IR spectroscopic measurements.

Coking kinetics of fresh and thermally aged commercial Cr2O3/Al2O3 catalyst

1993 ◽  
Vol 101 (2) ◽  
pp. 185-198 ◽  
Author(s):  
J.A. Pen˜a ◽  
A. Monzo´n ◽  
J. Santamari´a ◽  
J.L.G. Fierro
Keyword(s):  
Kinetics Of ◽  
Al2o3 Catalyst

Kinetics of Selective Hydrogenation of Pyrolysis Gasoline over Pd/Al2O3 Catalyst

2021 ◽  
Vol 62 (6) ◽  
pp. 750-755
Author(s):  
Haowen Ma ◽  
Minglin Chen ◽  
Limin Sun ◽  
Huixia Feng ◽  
Xuecheng Zhan ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Pyrolysis Gasoline ◽  
Kinetics Of ◽  
Al2o3 Catalyst

ChemInform Abstract: Stationary Kinetics of Essential Reactions on Automobile Exhaust Pt-Rh/ Al2O3 Catalyst.

ChemInform ◽  
2010 ◽  
Vol 27 (28) ◽  
pp. no-no
Author(s):  
P. MANNILA ◽  
T. SALMI ◽  
H. HAARIO ◽  
M. LUOMA ◽  
M. HAERKOENEN ◽  
...  
Keyword(s):  
Automobile Exhaust ◽  
Kinetics Of ◽  
Essential Reactions ◽  
Al2o3 Catalyst

scholarly journals A theoretical study on reaction mechanisms and kinetics of thiophene hydrodesulfurization over MoS2 catalysts

2018 ◽  
Vol 312 ◽  
pp. 158-167 ◽  
Author(s):  
Qiu Jin ◽  
Biaohua Chen ◽  
Zhibo Ren ◽  
Xin Liang ◽  
Ning Liu ◽  
...  
Keyword(s):  
Reaction Mechanisms ◽  
Theoretical Study ◽  
Thiophene Hydrodesulfurization ◽  
Mos2 Catalysts ◽  
Kinetics Of

Intrinsic Kinetics of Coking Crude Benzene Hydrodesulfurization on a Ti Modified Co-Mo-P/γ-Al2O3 Catalyst

2014 ◽  
Vol 665 ◽  
pp. 241-246
Author(s):  
Jun Wen Wang ◽  
Kan Zhang ◽  
Xi Ying Mao ◽  
Xue Hua Zhao ◽  
Chuan Min Ding
Keyword(s):  
Orthogonal Design ◽  
Reaction Conditions ◽  
Thiophene Hydrodesulfurization ◽  
Intrinsic Kinetics ◽  
Runge Kutta Method ◽  
Crude Benzene ◽  
Different Content ◽  
Kinetics Of ◽  
Micro Reactor ◽  
Design Experiments

With different content of thiophene in coking crude benzene, the Orthogonal design experiments of thiophene hydrodesulfurization on a Ti modified Co-Mo-P/γ-Al2O3 catalyst were carried out in a micro-reactor under the reaction conditions of 2.3~2.7MPa,275~335°C, 0.5h-1LHSV and H2/Oil 600~750. The kinetic parameters and the intrinsic kinetics were acquired by 4-order Runge-Kutta method and the modified Simplex method. The power-law type kinetic model was established and consistent with the experiment data and highly acceptable and reliable.

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