Chapter 4(c) - Separator Internals

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Production Engineering II Separator Internals

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separator internals

Transcript of Chapter 4(c) - Separator Internals

Directors Meeting

Production Engineering II

Separator Internals1Gas / Water/ Oil Separation

2Vessel Internals3Vessel Internals

4Inlet DiverterFunction ~ disengage the gas and liquid .

Types - baffle plates can be a spherical dish, flat plate, angle iron, cone

5Inlet DiverterFunction ~ disengage the gas and liquid .

Types - centrifugal diverters

6Wave BreakersFunction ~ dampen any wave action that caused by incoming fluids

Vertical baffles

Place perpendicular to the flow

In liquid collection section

Install in long horizontal vessel

Why eliminate wave?Liquid control problem Reduce separation 7Wave Breakers

8Defoaming PlatesFunction ~ to aid in coalescence of the foam bubbles.

Inclined parallel plates or tubes to promote coalescence, or merging, of the foam bubbles liberated from the liquid.

9Defoaming Plates

10Vortex BreakerVortex- a whirling mass of fluid or air, especially a whirlpool or whirlwind

A vortex breaker is a device used in engineering to stop the formation of a vortex when a fluid (liquid or gas) is drained from a vessel

The formation of vortices can entrain vapor in the liquid stream, leading to poor separation in process steps such as distillation or excessive pressure drop or causing cavitation of downstream pumps

Some use radial vanes or baffles around the liquid exit 11Vortex Breaker

12Sand Jets and DrainsThe Sand Jetting system is commonly used in the upstream separator to remove solids that settles in gravity separators.

It fluidizes the solids with pressurized water introduced through specially designed nozzles.

The solids are then discharged through sand drains located down the length of the vessel13Mist ExtractorFunction ~ to remove liquids mist from gas stream

Made of wire mesh, vanes, centrifugal forces devices

Liquid droplets impinge on the matted wires and coalesce

Effectiveness of wire mesh depends largely on the gas velocity.

High ~the liquids knocked out will be re-entrained.

14Mist Extractor

15Mist Extractor

16Mist Extractor

17Coalescing PlatesSpecific for oil/water separation

Function~ increase size of water droplets in oil phase.

Make gravity settling easier

Problem face ~ plugging with solids particles

18THANK YOU

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19Q & A Session

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