P1.9.17 Direct in-situ detection of sulfur loading on fixed bed catalysts

Peter Fremerey, Andreas Jess & Ralf Moos
The aim of this work is to develop a sensor concept that detects in-situ the sulfur poisoning level of a fixed bed catalyst during deactivation by sulfur compounds. Therefore, single catalyst pellets are contacted and their electrical impedance is measured directly in the reactor. Since sensor pellets and catalyst particles in the fixed bed are identical, it can be assumed that the sulfur affects the sensor and the catalyst particles the same way at equal...