Determination of slag deposition rate on cooling screen reactor walls by utilisation of slag thickness measurements

According to our study, a Tint corresponding to a slag viscosity in the range of ∼1000 Pa·s is identified to best represent the slag mass flow. Even for very low ash contents of the feedstock, a complete and homogeneous coverage of the cooling screen can be obtained even at the top section which exhibits very low depositions rates according to the model.