A reliable power-law type kinetic expression for PROX over Pt-Sn/AC under fully realistic conditions

The current experimental work is on PROX kinetics over Pt-Sn/AC catalyst at 383 K in the presence of H-2, CO2, H2O and CH4, mimicking WGS outlet of a fuel processor, which is used in production of PEMFC-grade H-2 from hydrocarbons. Parameters of the power-law kinetic model were estimated to be used in PROX reactor modeling and design calculations; reaction orders with respect to CO and O-2 were found as 0.47 and (-0.57). The apparent activation energy of PROX over Pt-Sn/AC, was calculated as 45,300 J mol(-1) in the temperature range of 383-403 K. (C) 2017 Elsevier B.V. All rights reserved.