Determine the pressure drop in the mist eliminator designed in Example 23.7. Using this result, do the following:

1. Determine the fraction of 4 μm particles that are captured in the device at the design flowrate. Would this design be suitable for a knockout drum upstream of a compressor?

2. Repeat Part (a) for an 8-in (200 mm) thick mesh pad. Would this design be suitable for a knockout drum upstream of a compressor?

Example 23.7

Estimate the diameter of a vertical V-L separator containing a 4-in (100 mm) thick wire mesh mist eliminator. The properties of the gas and liquid are

Consider a mist eliminator with a k_SB = 0.11 m/s that has a specific surface area, a = 300 m²/m³, and a porosity, ε = 0.98.

Transcribed Image Text:

PL = 870 kg/m³, Pg = 9.41 kg/m³, vg = 7.32 m³/s, v₁ = 1.553 m³/min = 0.02588 m³/s, μ = 0.0019 kg/m/s.