Experimental study and kinetic modeling of decoking of pacol process dehydrogenation catalyst

Abstract

The Pt/γ-Al2O3 catalyst life time was limited by the formation of coke on the external and internal sur-faces of catalyst in dehydrogenation reactors. The kinetics of decoking of dehydrogenation catalyst was studied in a pilot scale fixed bed reactor experimentally. The effects of temperature, oxygen concentra-tion and other operating conditions on decoking process were investigated. A kinetic model was deve-loped to describe the decoking of mentioned catalyst. An objective function was defined as the sum of squares of the deviations among the calculated and plant data. Accordingly the appropriate values were found in order to minimize this function. It was concluded that there was a good agreement be-tween simulation results and experimental data. © 2015 BCREC UNDIP. All rights reserved.