Mist Extraction - Page 3
Plate assembly vane mist extractors can be used
in several configurations of separators, as shown in figure 2. The
horizontal vane bundle has the highest liquid handling capacity because
it allows incoming liquid to fall to the bottom ahead of the vanes
and allows space for coalesced liquid blown from the trailing edge
to fall to the liquid section.
The attached figure 3 shows capacities for horizontal
plate assembly vanes and will essentially remove 99% of 10 micron
and larger particles.
The centrifugal force technique is usually used
in vertical separators. Gravity separation alone in a vertical separator
is inherently inefficient because the liquid particles must fall downward
counter-current to the rising gas stream, where in horizontal flow
the particle falls across the gas flow.
These vertical separators have a high gas capacity
but do not handle liquid well above approximately 20 BBLS/MMSCF. The
pressure drop is relatively high and the economic advantage over a
horizontal plate assembly vane separator is questionable.
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Separator Configurations Using Plate Assembly Vanes
Figure 2
Configuration "A"
Horizontal Separator Longitudal Flow K=0.65
Configuration "B"
Vertical Horizontal Flow Separator 20" Approximate Min I.D. K=0.45
Configuration "C"
Horizontal Cross Flow Separator 24" Approximate Min I.D. K=0.45
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