Glycols are used in various places in the chemical Manufacturing industry. In several cases these glycols come out from the process in the form of dilute aqueous solution. Because of very high water solubility & very low vapor pressure, recovery of these glycols from the aqueous solutions is very difficult.

Conventionally water from the solution is evaporated. The concentrated glycol stream thus obtained is distilled under reduced pressures to get glycol is the desired purity. Because of inclusion of water evaporation step, the separation of glycol from dilute aqueous solutions becomes very energy intensive process.

Non-evaporative technology uses novel extraction approach to separate glycols from the solutions. The raffinate phase obtained after extraction is free from glycerol content. The extract phase, on application of mild conditions gives concentrated glycerol.

Application:

The aqueous streams containing dissolved glycols in it.

Benefits:

• Complete recovery of glycerol from the aqueous stream.
  
• Ease of separation of glycerol from the extract phase.
  
• Amenable to presence organic & inorganic impurities.
  
• Highly Energy efficient process
  
• Ease of operation
  
  
  
  Typical Case Study