Measurement of oxygen concentration on inertized atmosphere
The application in question takes place in a stainless steel reactor, where certain organic compounds react. The headspace of the reactor must be filled with inert gas, i.e. nitrogen, as there is a clear explosion risk. An oxygen measurement system was installed to keep the situation under control.
In the reactor headspace itself, besides the nitrogen (around 94 %), some traces of volatiles organics coming from the liquid phase, (around 2 % isopropanol) are also in the measurement media.