Multi-gas monitoring system

Thermo Fisher Scientific has announced the Model 70 FTIR Multi-Gas CEMS, a single analyser, continuous monitoring system capable of measuring up to 10 gases or more for almost any incineration or co-incineration application. The real-time integrated stack gas monitoring system possesses a high level of sensitivity, specificity and dynamic range, with a dynamically aligned interferometer that provides long- and short-term stability.

The FTIR analyser uses a gas cell with a 5.2 m optical path. Fitted with zinc selenide sample windows, the cell is suitable for elevated temperature conditions, operating reliably at temperatures up to 185°C. The Model 70’s optical system is designed for a three- to six-month cycle of unattended operation, which significantly reduces operation costs. In addition to the dynamically aligned interferometer, the pinned-in-place, pre-aligned components ensure permanent optical alignment, virtually eliminating method maintenance for uninterrupted operation and analysis. The system’s high-speed data analysis capability delivers accurate, continuous gas measurement, which is ideal for rapidly changing complex gas mixtures.

Compounds measured with the FTIR CEMS include carbon monoxide, nitric oxide (gas turbine), sulfur dioxide, hydrogen chloride, ammonia, water, nitrogen dioxide, nitrous oxide, hydrogen fluoride, methane and carbon dioxide. Also available are two options for adding onto the system: a flame ionisation detector (FID) for monitoring total gaseous organic carbon and a zirconia oxygen analyser.