Carbon Bed Filters

ETI provides systems to process and remove contaminants from natural gas, condensates and liquids. Treating elements include activated carbon bed and contact time. ETI offers basic carbon bed or canisters for hydrocarbon capture in glycol and amine service, carbon beds to capture high molecular weight hydrocarbons for molecular sieve or silica gel desiccants, and special carbon beds to remove mercury and mercury salts.

Reasons for Carbon Beds
Some constituents in glycol, amine, natural gas, etc. can cause foaming or fouling of process equipment/liquid extractants. Some of these constituents are naturally occurring while others are the result of carryover from upstream processes or from compression operations. Removal of these higher molecular weight hydrocarbons lead to smoother operations and extended life from the process equipment or the extractant. The carbon also removes process contaminants to meet a gas specification for use, sale or transport.

The Process
Gases or liquids can be processed through carbon beds to clean up the primary fluid. Activated carbon is a strong adsorbent having a high surface area which captures those unwanted fragment contaminants. In the gas phase, carbon beds adsorb glycols, amines, higher molecular weight hydrocarbons, and mercury. Most of these beds must be replaced when saturated, although some may be regenerated. In liquid phase operations, carbon beds primarily adsorb oils and hydrocarbons that were carried over as liquids or aerosols into the liquid extractant. Glycol and amine solutions will adsorb heavier hydrocarbons, C7+ which will decompose, foul reboilers, and cause deterioration of the liquid. Removal of these hydrocarbons will extend maintenance or operability. Foaming is the major concern in liquid extractants. In amine and glycol service, carbon beds are generally in canisters and must be replaced when the carbon is spent/consumed.


Options and Features

  • Internal Coating
  • Alloy Materials
  • Skid-Mounted Modules
  • Piping to Skid Edge
  • Ladders and Platforms
  • Factory Insulation