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Oil & Gas

Oil Refining › MEA Unit

PROCESS INFORMATION

The Amine gas treating, also known as gas sweetening, refers to a process that uses aqueous solutions of various alkylamines (commonly known as amines) to remove hydrogen sulphide (H2S) and carbon dioxide (CO2) from gases. Aqueous solutions of MEA (monoethanolamine) are used as a gas stream scrubbing liquid in amine treaters to remove H2S from sour natural gas. The MEA reacts with acidic compounds dissolved in the solution, using a large surface area to contact with the cold scrubbing solution in a scrubber unit and remove such acidic components as hydrogen sulfide (H2S).

In contrast to sodium hydroxide (NaOH), which will not readily release the gas once it has dissolved, MEA will re-release H2S when the scrubbing solution is heated. Therefore, the MEA scrubbing solution is recycled through a regeneration unit, which heats the MEA solution from the scrubber unit to release these only slightly acidic gases into a purer form and returns the regenerated MEA solution to the scrubber unit again for reuse.

O&G_MEA

PROBLEMS TO SOLVE

a) Prevent droplet carry over from the upstream Knock-Out Drum exit
b) Prevent droplet carry over from the MEA Absorber column
c) Separate the Hydrocarbon and MEA liquid phases in the 2 Phase Liquid-Liquid Separator
d) Prevent droplet carry over from the MEA Regenerator column
e) Separate the droplets from the H2S Rich gas and the 2 liquids in a 3 Phase Separator

DESIGN SOLUTIONS

a) ‘Becovane’ DPV Chevron Vane or Circular ‘Becoil’ Demister with mesh style / specification appropriate to the duty.
b) ‘Becovane’ DPV Chevron Vane or Circular ‘Becoil’ Demister with mesh style / specification appropriate to the duty.
c) ‘Becophase’ 2-Phase Separator Vessel, or ‘Becophase’ Co-Knitted Coalescer mesh pack for full vessel diameter
d) ‘Becovane’ DPV Chevron Vane or Circular ‘Becoil’ Demister with mesh style / specification appropriate to the duty.
e) ‘Becophase’ 3-Phase Separator Vessel, or ‘Becophase’ Co-Knitted Coalescer mesh pack for vessel bottom section.

Vessel Views with BC Logo

Gas-Liquid Separator Vessels with Vane Packs or Demisters

Gas-Liquid Separator Vessel Options with Coalescer Cylinders and Vane Pack

Vertical Filter Separator

Gas-Liquid Separator Vessel Options with Coalescer Cylinders and Vane Pack

Wet Reflux

3 Phase Gas-Liquid-Liquid Separator Vessel with Coalescer and Vane Pack or Demister

Caustic Treater

2 Phase Liquid-Liquid Separator Vessels with Coalescer Pack and Plate Pack Solids Removal Option

Oily Wastewater Separator

2 Phase Liquid-Liquid Separator Vessels with Coalescer Pack and Plate Pack Solids Removal Option

O&G G-L VESSEL ARRANGEMENT OPTIONS 1O&G G-L VESSEL ARRANGEMENT OPTIONS 2O&G L-L VESSEL ARRANGEMENT OPTIONSO&G G-L-L VESSEL ARRANGEMENT OPTIONS