P5.17 - In situ Measurements of O2 and CO in Cement Kilns
- AMA Conferences 2017
2017-05-30 - 2017-06-01
- Proceedings Sensor 2017
- P5 - Gas, Chemo and Biosensors
- O. Driesner, F. Gumprecht - ENOTEC GmbH (Germany), U. Guth - Technische Universität Dresden (Germany)
- 744 - 746
The in situ measurements of O2 and CO simultaneously in cement kilns is a great challenge due to the high temperature of the process and the dust load. A probe is developed for this purpose consisting of a water cooled tube in which are located the solid electrolyte oxygen sensor and a CO mixed potential sensor. In order to prevent the deposition and sintering of raw material the probe rotates 90 ° in certain intervals. Beside coal, gas or oil also municipal waste is used as a fuel. Due to the varying fuel, the demand of oxygen is also changing. The combustion air supply has to adapt very fast in such a way that a minimum in CO concentration is reached and simultaneously the NOx emission can be limited. This was demonstrated by a CEMTEC® probe over years.