Oxygenated hydrocarbons steam reforming over NiCeZrGdO2 catalyst Kinetics and reactor modeling》.pdf

Chemical Engineering Science 138 (2015) 363–374 Contents lists available at ScienceDirect Chemical Engineering Science journal homepage: /locate/ces Oxygenated hydrocarbons steam reforming over Ni/CeZrGdO2 catalyst: Kinetics and reactor modeling Mehrdad Bakhtiari, Md. Abu Zahid, Hussameldin Ibrahim n, Ataullah Khan, Protyai Sengupta, Raphael Idem nn Clean Energy Technologies Institute (CETI), Process Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S 0A2 H I G H L I G H T S Unique integral approach for kinetic analysis in packed bed tubular reactors. New modified genetic algorithm as an optimization tool to minimize rate model errors. Mechanistic kinetic model for the steam reforming of oxygenated hydrocarbon mixture. Comprehensive simulator that concurrently solves the Navier–Stokes and energy transfer equations. a r t i c l e i n f o a b s t r a c t Article history: The kinetics of the steam reforming of an equimolar mixture of oxygenated hydrocarbons (Oxy-HC) over Received 23 April 2015 Ni=Ce0:5Zr0:33 Gd0:166O2 catalyst was studied in a packed bed tubular reactor (PBTR) at atmospheric Received in revised form pressure, a temperature range of 550–600 1C, and a steam to feed (S/F) molar ratio range of 2–6. Intrinsic 6 August 2015 kinetic data were collected in the absence of heat and mass transport limitations, which was confirmed Accepted 8 August 2015 by performing relevan