ADVANCED EXTRACTION TECHNOLOGIES, INC.

 

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Technology

Liquids Recovery - HD-5 Propane Unit

The patented AET Process NGL Recovery Unit technology utilizes non-cryogenic absorption to recover C3+ natural gas liquids (NGLs) from natural gas streams.  The absorbed NGLs in the rich solvent from the bottom of the NGL absorber column are fractionated in the solvent regenerator column which separates NGLs overhead as a HD-5 propane product and a C3-C4 mix product as a side draw; and lean solvent is produced at the bottom.  After heat recuperation, the lean solvent is presaturated with absorber overhead gases.  The chilled solvent flows into the top of the absorber column.  The separated gas from the presaturator separator form the pipeline sales gas.  The AET NGL plant uses lighter (70 to 90 MW) hydrocarbons, such as C5+ components of feed gas, as preferred solvent.  For most applications, there are no solvent make-up requirements, and a fractionated C5+ gasoline product is additionally produced.

Features  
HD-5 Propane Recovery Up to 85% of recovered propane can be produced as a HD-5 stream.
   
Lower Capital & Operating Costs The initial and ongoing costs are lower than competing processes.
   
Feed Pretreatment CO2 removal is not necessary, glycol injection for dehydration is adequate.
   
Wide Operating Pressure Range 250 to 1,200 psig feeds without inlet gas compression
   
Inexpensive Metallurgy Lowest temperature, limited by C3 refrigeration, permits the use of carbon steel metallurgy predominantly.
   
Upgrading Simple Refrigeration Plants Add-on unit enhances propane recovery from typical 30-55% to 96+% by processing cold separator gases.
   

ADVANCED EXTRACTION TECHNOLOGIES, INC.

2 Northpoint Drive, Suite 620
Houston,TX 77060-3237 USA
Phone: 281.447.0571
Fax: 281.447.5601
 
Email: contact@aet.com