Gas Products
EG Regeneration
TEG Dehydration & Regeneration
JT & Refrigeration Units
Ethylene Glycol (EG) is injected into gas to absorb water to reduce possible hydrate formation. AMR Process designs & builds custom EG regeneration units.
 
  • Custom design.
  • Flash drum.
  • Heat recovery exchanger.
  • Particulate / carbon filters.
  • Electric / hot oil / gas fired reboilers.
  • Optional overhead recovery units.
  • Reinjection pumps.
Where the client requires lower water dewpoints in the gas than EG injection can provide, Tri-Ethylene Glycol (TEG) dehydration & regeneration is utilized.
 
  • Custom design.
  • Pre filter-separator.
  • High efficiency absorption tower.
  • Downstream liquid scrubber.
  • Reflux coil.
  • Flash drum.
  • Particulate / carbon filters.
  • Heat recovery exchangers.
  • Electric / hot oil / gas fired reboilers.
  • Optional stripping columns for high purity TEG regeneration.
  • Surge vessel.
  • Optional chemical injection package.
  • Optional glycol storage tanks.
  • Reinjection pumps.
  • High H2S and CO2 designs.
Another method for water removal (hydrate prevention) utilizes the Joule Thompson (JT) effect of cooling gas during a drop in pressure, which condenses out water. Although not energy efficient, it is a suitable process when excess pressure is available.
 
If pressure drop is an issue, substitution the JT valve with a propane refrigeration chiller unit, will allow low temperatures to be achieved without the loss of pressure.
 
  • Custom design.
  • Cold recovery exchanger.
  • JT valve or refrigeration chiller.
  • Cold separator.
  • Optional EG / methanol / TEG injection / Molecular Sieve according to low operating temperature as required.
  • Propane, closed cycle, refrigeration unit.
Fuel Gas Conditioning
Molecular Sieve Dehydration
Methanol Recovery
Fuel gas conditioning can range from simple filtering and heating to dehydration and BTU value adjustment.
 
  • Custom design.
  • Inlet filter separators followed by electric heating.
  • Dehydration unit incorporation.
  • JT unit incorporation.
When super dehydration of gas is required, molecular sieve units are utilized. They consist of an absorption bed that absorbs the water. Dry gas is then used to regenerate the bed, stripping the water from the molecular sieve. It is a some what expensive process as it requires specialized high temperature regeneration equipment.
 
  • Custom design.
  • Inlet filter separators and coolers.
  • 2-3-4 absorber tower configurations.
  • Downstream filters.
  • Salt bath / hot oil regeneration gas heating system.
  • High temperature, absorption / regeneration cycles change over controls.
  • Regeneration gas cooler and separator.
Methanol injection is used to prevent hydrate formation. Historically methanol is lost to the process. Where methanol recovery is important due to remote or offshore locations, complicated azeotrope distillation is required. Experience is necessary to correctly design these complicated units.
 
  • Custom design.
  • Optional carbon filters.
  • Heat recovery exchanger.
  • Azeotrope distillation tower.
  • Reflux and reboiler systems.
NGL/LPG Processing
Amine Units / Sweetening
Molecular Sieve Conditioning
Once natural gas liquids (NGL) have been removed from the gas stream they are processed further into Liquefied Petroleum Gas (LPG) fractions, such as ethane, propane, butane & isobutane.
 
  • Custom design.
  • Heat recovery exchangers.
  • High efficiency fractionation tower.
  • Reflux & reboiler units.
 
  • Fractionation colomn.
  • De-methanizer tower.
  • De-ethanizer tower.
  • De-butanizer tower.
  • De-isobutanizer tower.
AMR Process provides amine sweetening units removing H2S & CO2 from gas streams reducing corrosion issues to downstream equipment. AMR Process can offer standard DEA, MEA, MDEA & DGA units. AMR Process additionally offer blended amine units that provide capital & operating cost savings.
 
  • Custom design.
  • Pre liquid coalescer.
  • High efficiency absorption tower.
  • Flash drum.
  • Particulate / carbon filters.
  • Heat recovery exchangers.
  • Reflux and reboiler units.
  • Surge vessel.
  • Optional chemical injection package.
  • Booster & reinjection pumps.
 
As well as super dehydration, molecular sieves can also remove trace amounts of H2S, mercaptans & CO2.
 
  • Custom design.
  • Inlet filter separators and coolers.
  • 2-3-4 absorber tower configurations.
  • Downstream filters.
  • Salt bath / hot oil regeneration gas heating system.
  • High temperature, absorption / regeneration cycles change over controls.
  • Regeneration gas cooler and separator.