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RUGGED, VERIFIABLE, IN-SITU OXYGEN ANALYZERS FOR COMBUSTION OPTIMIZATION IN SULPHURIC ACID PRODUCTION
Combustion optimization in sulphur burners has always proved difficult. Extractive analyzers are prone to clogging and introduce both measurement offsets and time delays. Conventional, heated in-situ sensors must be located in cooler regions of the furnace far from combustion and have similar time delays, a need for frequent calibration and are easily fouled by combustion and process byproducts. Non-heated, “high-temperature,” in-situ oxygen analyzers have been used in this application but are fragile and require time-consuming insertion and removal processes to avoid thermal shock of the sensing element.
The Oxyfire from UPC-Marathon is a robust, ceramic-composite analyzer that provides thermal toughness, allowing for fast insertion and removal. Its design also incorporates a focused flow system which provides zero and span capability in accordance with US EPA guidelines.
