O₂ and CO measurement at the furnace exit (at the entry of second pass) can really help in understanding the combustion conditions in the furnace. Most systems use conventional Zirconia probe at the APH inlet. On-line zirconia Analysers are quite unreliable, particularly at high temperature zone. We invite our community members to share their experience and suggest effective technology solution and vendors.

accurate CO measurement using TDLS  can optimize the combustion, also eliminates the risk of Explosion in ESP due to high CO presence in the Flue gas

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