Akademik Veri Yönetim Sistemi
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, cilt.31, sa.2, ss.221-229, 2016 (SCI-Expanded)
In this study, determination of the reaction mechanism on Cr/MCM-41 catalyst for isobutane dehydrogenation was aimed. The change of experimental reaction rate values with concentration was evaluated before the beginning of the mechanism studies and it was determined that it was important to control surface reactions. The reaction order (n) obtained by experimantally for isobutane dehydrogenation showing exchanges between 1-2 indicated that surface reactions would be mono or bimolecular, so surface reaction controlled basic reaction mechanisms (Model I&Model II) were studied among many mechanism studies. On the equations obtained by reduction of various parameters (Model III) based on the rule of order were also studied. Nonlinear regression analysis were carried out to estimate the parameters of the model studies utilizing the SPSS 17.0 program (Windows Evaluation Version). The best agreement with the experimental reaction rate values was determined on the bimolecular surface reaction controlled mechanism (Model I). Parameter values of activation energy (49-55kj / mol) and the adsorpsion equilibrium constants (1-3) estimated for isobutane dehyrogenation reaction were consistent with the literature.