Selection of Separator Type

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Vertical Separators
The vertical separator (Figure 300-5) accommodates a tangential inlet, which assists removal of entrained liquid from vapor. Knockout drums which protect compressors are a demanding service, and are usually vertical. The vertical separator takes less plot space than a horizontal separator, is not as susceptible to internal wave action, and is easier to clean.

Vertical Two-Phase Separator Data Sheet

Horizontal Separators
The horizontal separator (Figure 300-6) accommodates large liquid holdup volumes and more easily provides large surface area for oil-water separation and for evolution of gas from liquid. The horizontal separator takes less vertical space than a vertical separator, which may be important for offshore installations (horizontal vessels are sometimes stacked). Also, piping may be cheaper.

Horizontal Separator Data Sheet

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