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Non-Contacting Gas Sensors Minimize the Risk of Corrosion to Plant Equipment.

By Mettler Toledo CE |

Fast, accurate measurement of low ppm water vapor in corrosive gas streams is essential for preventing equipment corrosion. For a prominent European chemical company, switching from slow electrolytic sensors to almost real-time moisture analysis has made a significant improvement.

Inovyn switches to non-contacting method of gas measurement
During chlorine production, in order to prevent downstream corrosion wet chlorine gas must be dried immediately. For Inovyn, Europe's largest producer of chlorine, an efficient drying process is therefore essential. The electrolytic phosphor pentoxide sensors they were using to monitor H2O levels in their drying system have a long reaction time that posed a risk of equipment damage if moisture levels increased. So a new solution was tried.

Inovyn installed two METTLER TOLEDO GPro® 500 tunable diode laser (TDL) spectrometer analyzers. Most TDLs comprise two parts that must be carefully aligned. METTLER TOLEDO TDLs feature an alignment-free probe that protrudes into the gas stream. A range of adaptions includes designs for small line size pipes down to 2", a filter probe for high-dust or high-condensate applications, and an extractive cell for use with existing sampling and conditioning systems.

Find out how Inovyn benefited from the switch to TDLs





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