December 2017

Trends and Resources

Innovations

In the demanding environment of a Claus reaction furnace, flame detection sensors must distinguish whether a flame is still burning against a hot refractory lining background.

Andrew, Bob, Hydrocarbon Processing Staff

Use high-reliability thermopiles or flame detection In the demanding environment of a Claus reaction furnace, flame detection sensors must distinguish whether a flame is still burning against a hot refractory lining background. Traditionally, UV and IR sensors were used, but they had reliability challenges and were not useful for a safety shutdown device intended to signal the burner management system (BMS) to shut off the acid gas in the event of flame-out. FIG. 1. Thermopile flame sensor on sulfur reaction furnace. ZEECO and Duiker have both developed a thermopile—a series of thermocouples stacked together—flame detector technology that is r

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