Design, Installation, and Monitoring of ID Fans for Ethylene Furnaces

The 21st Ethylene Producers Conference
2011 AIChE Spring Meeting
AIChE Spring Meeting and Global Congress on Process Safety
March 13, 2011 - 8:00pm

Reliable operation of induced-draft fans on ethylene furnaces is critical to maintaining plant output capacity. Achieving this requires close attention to numerous issues during specification, design, installation, and monitoring in operation. This paper will examine recommended practice pertaining to rotor balance, bearing selection, field installation, choice of instrumentation, and other issues. Use of variable-frequency drives allows flexible, reliable control of airflow under changing plant conditions but imposes limits on low-flow operation.
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