PLS-based kinetics modeling and optimization of the oxidative coupling of methane over Na2WO4/Mn/SiO2 catalyst

Reactor modeling for the oxidative coupling of methane over Na 2 WO 4 /Mn/SiO 2 catalyst was addressed in the present study. The catalyst loading part was designed to be thicker than the inlet and outlet parts to reduce the rates of side reactions in the gas phase, and the optimal aspect ratio (L to...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2011-11, Vol.28 (11), p.2142-2147
Main Authors: Lee, Mi Ran, Park, Myung-June, Jeon, Wonjin, Choi, Jae-Wook, Suh, Young-Woong, Suh, Dong Jin
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Materials Science
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Summary:Reactor modeling for the oxidative coupling of methane over Na 2 WO 4 /Mn/SiO 2 catalyst was addressed in the present study. The catalyst loading part was designed to be thicker than the inlet and outlet parts to reduce the rates of side reactions in the gas phase, and the optimal aspect ratio (L to D ratio) for no pressure drop and minimum side reactions was determined in experimental studies. Experiments were also conducted under a variety of operating conditions such as gas hourly space velocity (GHSV), CH 4 /O 2 ratio and reaction temperature, and partial least-squares model was applied to predict the performance of the reactor. The validity of the developed model was corroborated by the comparison with experimental data, and normalized parametric sensitivity analysis was carried out. Finally, the genetic algorithm (GA) was applied to determine the optimal conditions for maximum production of ethane and ethylene.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-011-0253-8