Leimeister E., Steinbach H., 2013, Venting of Foaming Three-Phase Systems with Hydrophilic and Hydrophobic Particles, Chemical Engineering Transactions, 31, 745-750.
The correct design of a safety valve or rupture disk can only be done if the venting behaviour can be predicted. When it comes to foaming or highly viscous systems those predictions meet up to date their limits. An experimental study is presented that describes the influence of particles hydrophilic properties on the venting of foamy systems. It is shown that hydrophilic particles increase the mass discharge over time and reduce the pressure decrease over time by increasing the foaming of aqueous systems. The particles itself are hardly vented. First experiments with hydrophobic particles also show an effect on the venting behaviour. The particles are vented at the beginning of the vent process drastically influencing mass discharge and pressure decrease over time.
