Method for Purifying Glycol Used as a Hydrate Inhibitor

Abstract

The invention concerns a purification method comprising: providing a flow comprising a glycol, monovalent ions and multivalent ions; treating this flow with ion exclusion chromatography comprising: injecting the flow into a chromatographic unit comprising an ion exchange stationary phase; injecting an eluent into the chromatographic unit; collecting a fraction at the outlet of the chromatographic unit; the collected fraction being enriched with glycol and depleted of monovalent ions and multivalent ions relative to the flow. The invention also concerns an installation adapted to implement this method, and its application to the regeneration of an anti-hydrate agent.

Dependencies are inferred from the claim text.