Incremental Kinetic Identification based on Experimental data From Steady-state Plug Flow Reactors

摘要

This work develops an incremental model identification approach for analyzing concentrations from non-isothermal steady-state plug flow reactors (SPFR) with tubular geometry. A model of non-isothermal SPFRs consists of the material and energy balance equations of SPFR in form of a set of differential equations. Since SPFRs often are used for studying gas phase reactions, the pressure drop equation will also be included. Two scenarios of reactor operations for collecting concentration measurements are distinguished: (S1) Concentrations of species are measured along the length of reactors, and (S2) concentrations of species in the outlet stream are measured for the given inlet concentration condition at various volumetric flowrates. For Scenarios S1 and S2, the incremental identification is extended to identify reaction kinetics from experimental data. Scenario S1 is corroborated with a simulated example of pyrolysis of dimethylformamide in an isothermal tubular reactor.