Monitoring of Gas Mixtures by Means of a Flexible IR-Sensor System Utilizing Tunable Filters

We present the implementation of a cost-effective infrared sensor solution, dedicated for real-time measurement of the overhead gas composition in bench scale polymerization reactors. The system is based on a tunable IR-filter. It is integrated into a sampling pipe and operated at ambient pressure. First test measurements of the system with binary mixtures and their evaluation with modern algorithms are presented. Furthermore, as an outlook, the potential of the developed calibration for application in ternary gas mixtures is discussed.