The typical procedure for conducting a step change experiment involves the following steps:
The catalyst is placed in a reactor and brought to a steady state with a constant feed composition. A sudden change in the feed composition is introduced, either by increasing or decreasing the concentration of one or more reactants or products. The system's response is monitored over time using various analytical techniques, such as gas chromatography or mass spectrometry. The data collected is analyzed to determine the transient behavior of the catalyst and the reaction kinetics.
