Process for the separation of an alkylene glycol
AssigneeShell Oil Company
InventorsKai Jürgen FISCHER, Wouter KOOT, Arlette WESENHAGEN, Roel Guillaume Hubertus Leonardus BASTINGS
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Abstract
The invention provides a process for the recovery of an alkylene glycol from an aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, said process comprising the steps of providing the aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, providing a first solvent stream, combining said aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol with said first solvent stream and recovering at least a portion of the alkylene glycol by liquid-liquid extraction, wherein said solvent comprises an amine.
Claims20
A process for the recovery of an alkylene glycol from an aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, said process comprising the steps of providing the aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, providing a first solvent stream, combining said aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol with said first solvent stream and recovering at least a portion of the alkylene glycol by liquid-liquid extraction, wherein said solvent stream comprises an amine.
A process for the recovery of monoethylene glycol from an aqueous stream comprising monoethylene glycol and diethylene glycol, said process comprising:
- combining the aqueous stream comprising monoethylene glycol and diethylene glycol with a first solvent stream comprising an amine;
- and
- recovering at least a portion of the monoethylene glycol by liquid-liquid extraction.
Dependencies are inferred from the claim text.