What is used to remove small droplets or particles from the gas outlet on a vessel?

What is used to remove small droplets or particles from the gas outlet on a vessel?

• A. Demister
• B. Cyclone
• C. Scrubber
• D. Filter

Answer: (A)

Removing very small droplets from gas exiting a vessel is achieved by a demister, or mist eliminator. It uses a mesh or similar structure to coalesce tiny droplets into larger ones that drain away, so the gas leaves the vessel with minimal liquid carryover. This prevents liquid entrainment from reaching downstream equipment or processes. Cyclones rely on centrifugal forces to remove larger droplets and particles but aren’t as effective for very fine mist. Scrubbers remove contaminants by contacting the gas with a liquid, but their primary role isn’t to eliminate fine mist at the outlet. Filters trap solid particles but aren’t designed to remove liquid droplets from a gas stream and can cause unnecessary pressure drop.

Removing very small droplets from gas exiting a vessel is achieved by a demister, or mist eliminator. It uses a mesh or similar structure to coalesce tiny droplets into larger ones that drain away, so the gas leaves the vessel with minimal liquid carryover. This prevents liquid entrainment from reaching downstream equipment or processes. Cyclones rely on centrifugal forces to remove larger droplets and particles but aren’t as effective for very fine mist. Scrubbers remove contaminants by contacting the gas with a liquid, but their primary role isn’t to eliminate fine mist at the outlet. Filters trap solid particles but aren’t designed to remove liquid droplets from a gas stream and can cause unnecessary pressure drop.