An experimental study has been carried out of the in situ thermal degradation of a commercial dehydrogenation catalyst in a fixed-bed reactor. The activity of catalyst particles sampled at different reactor positions after several reaction-regeneration cycles has been related to their time-temperature history, according to the following kinetics:-da,/dt=O.147 exp(-73,600/RT)d2The above equation represents the loss of activity under coke-free conditions, that is, activity loss due to sintering. The results of the study show that important differences in catalytic activity can be obtained for different positions of a fixedbed catalytic reactor after several operation-regeneration cycles.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.