Flare Knockout Drum Sizing

API 521 knockout drum sizing: droplet settling, liquid holdup, horizontal/vertical drum dimensions.

Design Parameters

Gas Flow (MMscfd)

Gas MW

Operating Pressure (psig)

Operating Temp (°F)

Liquid Rate (bbl/hr)

Liquid Density (lb/ft³)

Holdup Time (min)

Droplet Size (μm)

Orientation

Drum Diameter (ft)

Drum Length/Height (ft)

Settling Velocity (ft/s)

Gas Velocity (ft/s)

Liquid Holdup (bbl)

Souders-Brown K