Gas Scrubber

Exterran’s Gas Scrubber removes traces of liquid droplets from gas streams to protect downstream equipment from damage and failure. It is typically used upstream of gas treating equipment that contains dry desiccants or mechanical equipment such as compressors. It is also used downstream of equipment where liquids have condensed from the gas. The Gas Scrubber is designed to handle light liquid loads and does not take the place of a primary separator. Vessels are available from 12-inch to 72-inch OD with natural gas capacities to 200+ million standard cubic feet per day (MMscfd).

Key Benefits


  • Helps protect your downstream equipment and pipelines from damaging liquids
  • Precision machined, wire mesh or vane-type mist extractor can boost efficiency
  • Increase production and reduce downtime with our proven pre-engineered design


  • Engineered lifting lugs for ease of installation and safety
  • Latest ASME design and construction standards help ensure high performance and safety
  • Large in-stock inventory and quick delivery allows faster startup


  • Added assurance of a warranty on our manufactured productsthat runs 12 months from startup or 18 months from delivery, whichever comes first
  • Prompt, professional service, support and spare parts from local technicians in or near every major oil & gas producing region in the U.S. and numerous areas around the world

How it Works

The production stream first encounters the inlet diverter, which causes initial separation of gas from liquid. The heavier liquid descends while the gas rises. In the open area of the vessel, the stream slows even further and the larger liquid particles fall from the gas. Next the high efficiency mist extractor captures smaller liquid particles entrained in the gas. Liquids exit the bottom of the vessel and the scrubbed natural gas exits the top.

Standard Features & Options

Standard Features

  • Thermal pressure relief valve
  • Sight glass/level gauges with gauge cocks
  • Full-diameter, high efficiency wire mesh or vane-type mist extractor
  • Liquid level controller
  • Liquid outlet control valve
  • Pressure indicator with isolating valve
  • Temperature indicator connection
  • Instrument gas supply drip pot with high and low pressure regulators
  • Siphon drain connection
  • Instrument gas header including high and low pressure regulators
  • Engineered lifting lugs for safe handling
  • High quality enamel paint system
  • ASME code stamped and National Board registered


  • API 14C rated
  • High and low level controls
  • Flanged connections
  • Skid mounted with drain pan
  • Manways and cleanouts
  • Concrete blocks
  • Carbide trim
  • Sour gas service designed and built to NACE standards
  • Customization to meet additional specifications