Performance modeling and analysis of H2O2 catalytic pellet reactors My master thesis will concern the study of a steady 1D model of the hydrogen peroxide (HP) decomposition flow in a pellet-type catalytic bed and its application to the parametric design of a typical reactor for small rocket propellant thrusters. The aim of my thesis is to describe the catalytic reaction of 𝐻2𝑂2. In order to perform this analysis I will deal with: 1. Homogeneous Two-Phase Flow Model; 2. Reaction Model; 3. Governing equation; Concerning the Homogeneous Two-Phase Flow Model, The two-phase liquid-gas-vapor flow through the bed is treated as an homogeneous, adiabatic, chemically reacting flow, whose properties depend on the local composition.