Tray Column Design: system derating factor crude tower
Distillation and absorption tray column design parameters — sieve, valve, bubble cap, dual-flow, baffle, and chimney tray geometry, hydraulics, flood limits, and turndown ratios; plus system derating factors, downcomer hydraulics, downcomer residence times, typical theoretical stages by separation system, and Murphree tray efficiency ranges
| tray type | category | system derating factor max (dimensionless) | system derating factor min (dimensionless) | system service |
|---|---|---|---|---|
| system derating factor crude tower | system derating factor | 1 | 0.85 | Crude towers (moderate-foaming) |
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