Volume 2, Issue 3 (2019)
IQBQ 2019, 2(3): 21-39 |
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asadi R, towfighi J, mousavi S M. Statistical modeling and optimization of propane oxidative dehydrogenation process using gamma alumina based on molybdenum catalyst. IQBQ 2019; 2 (3) :21-39
URL: http://arcpe.modares.ac.ir/article-38-19610-en.html
URL: http://arcpe.modares.ac.ir/article-38-19610-en.html
1- Faculty of Chemical Engineering, Department of Chemical Engineering, Tarbiat Modares University.
2- Faculty of Chemical Engineering, Department of Chemical Engineering, Tarbiat Modares University ,towfighi@modares.ac.ir
3- Faculty of Chemical Engineering, Department of Chemical Engineering, Tarbiat Modares University
2- Faculty of Chemical Engineering, Department of Chemical Engineering, Tarbiat Modares University ,
3- Faculty of Chemical Engineering, Department of Chemical Engineering, Tarbiat Modares University
Abstract: (9196 Views)
Due to increase in global demand of propylene, many extensive studies and research have been done to find alternative method for lower energy consumption and efficiency. In this research, gamma alumina is used for molybdenum catalyst base in oxidative dehydrogenation process of propane, in order to produce the propylene. The catalysts are prepared based on wet impregnation method. The analysis of FTIR, XRD, BET, SEM, and XRF are done to evaluate and determine the characteristics of prepared catalysts. Central composition method is employed to study the influence of reaction temperature, molybdenum loading percentage, oxygen to propane ratio, and the effect of interactions between them in propylene production. The molybdenum in the range of 4-16%, propane to oxygen ratio in the range of 1-3%, and temperature in the range of 380-540 ºC are the input parameters of the central composite method. Finally, according to reactor test and analysis of the results of the Design expert software, it is shown that the predicted models for propane conversion, propylene selectivity, and efficiency persentage of oxidation dehydrogenation are about 95%. Maximum of efficiency percentage with a value of 14.02% is obtained at 487 ºC, 11.22% molybdenum percentage, and propane to oxygen ratio of 1.5, which in experimental results, achieving an accuracy of 94% is possible as compared to the optimal design of the test design model.
Article Type: Original Research |
Subject:
Biomedical Enginireeng
Received: 2018/04/30 | Accepted: 2018/05/28 | Published: 2019/01/21
Received: 2018/04/30 | Accepted: 2018/05/28 | Published: 2019/01/21
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